inferenceview

INTELLIGENCE

Data worth acting on.

Agent-collected datasets and analytics, built around your question.

AGENT-COLLECTED DATA

Raw activity.
Useful intelligence.

Our collection agents gather payment records, provider listings and endpoint observations. We organize the evidence into dated datasets you can explore, analyze and request.

Request a datasetExplore the collection
01 / PAYMENTS

Understand activity.

Amounts, currencies, wallets and transaction evidence. Filter by time to study patterns and concentration.

02 / PROVIDERS

Compare the market.

Service listings, advertised prices, payment options and endpoint observations—with sources attached.

03 / HISTORY

See what changed.

Dated snapshots and change records reveal shifts that a current directory cannot show.

The value is in the connections: normalized records, history and traceable evidence. Custom datasets and analytics are scoped to your question and available coverage.

Cost intelligence

Find the better way to pay.

Compare service prices and payment options against your workload.

Scoped audits · customer usage requiredRequest a cost audit
Change intelligence

Know when your dependencies change.

Track payment offers, service schemas and provider changes over time.

Custom watchlists and historyDiscuss monitoring
Outcome intelligence

Connect the purchase to the result.

Bring charges, retries and task evaluations into one private evidence record.

Integration pilot · your task criteriaConnect your workflow

THE EVIDENCE BASE

Collected. Dated. Traceable.

Use the API
14,635Source listings
33Source snapshots
27,889Recorded changes
1,221Endpoint observations

Latest snapshot: Sep 12, 2026, 05:41 UTC. Daily collection; gaps remain unknown.

955 observations · Differences between dated observations.

api.onesource.ioRead a raw storage slot from any Ethereum contract via eth_getStorageAt
https://api.onesource.io/api/chain/storage ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Read a raw storage slot from any Ethereum contract via eth_getStorageAt",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.005,
  "metadata": null,
  "method": "GET",
  "observed_at": 1789084800,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "d501dccd0c616d852a3644376b5923a5b8f7f010c15ed8e85affa4b3b0c666da",
  "schema_fingerprint": "4c7b17d78dadd5f2",
  "service_id": "bcdcad22a75cd7173e4e273ae39e4acb3faf2caf596a5b9cb1e03f23ba9b8125",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-09-11T21:58:13.383Z",
  "url": "https://api.onesource.io/api/chain/storage",
  "usage_rights": "not_reviewed"
}
api.onesource.ioPending block - transactions not yet mined, via eth_getBlockByNumber("pending")
https://api.onesource.io/api/chain/pending ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Pending block - transactions not yet mined, via eth_getBlockByNumber(\"pending\")",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.01,
  "metadata": null,
  "method": "GET",
  "observed_at": 1789084800,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "d501dccd0c616d852a3644376b5923a5b8f7f010c15ed8e85affa4b3b0c666da",
  "schema_fingerprint": "9472343eaad06665",
  "service_id": "c171ba313e314976eee8378aa3dccb914e4b039b204a7c8a57926cfafe488c50",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-09-11T21:53:51.485Z",
  "url": "https://api.onesource.io/api/chain/pending",
  "usage_rights": "not_reviewed"
}
api.onesource.ioFetch an Ethereum block header and transaction hashes by number, tag, or hex via eth_getBlockByNumber
https://api.onesource.io/api/chain/block/:number ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Fetch an Ethereum block header and transaction hashes by number, tag, or hex via eth_getBlockByNumber",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.003,
  "metadata": null,
  "method": "GET",
  "observed_at": 1789084800,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "d501dccd0c616d852a3644376b5923a5b8f7f010c15ed8e85affa4b3b0c666da",
  "schema_fingerprint": "0ea30969247c52e2",
  "service_id": "d033e185136c430eedb1ce9723f99c73cfbf7bdfa07a6bbbf4331019370637f7",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-09-11T22:08:48.554Z",
  "url": "https://api.onesource.io/api/chain/block/:number",
  "usage_rights": "not_reviewed"
}
api.onesource.ioERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC
https://api.onesource.io/api/chain/erc20-balance ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.003,
  "metadata": null,
  "method": "GET",
  "observed_at": 1789084800,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "d501dccd0c616d852a3644376b5923a5b8f7f010c15ed8e85affa4b3b0c666da",
  "schema_fingerprint": "1744c15d258180ae",
  "service_id": "e1048a6bb8f26624e1eb083e1e9acb34c0b0c49ababbf115aa4e6a754b771133",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-09-11T22:11:16.633Z",
  "url": "https://api.onesource.io/api/chain/erc20-balance",
  "usage_rights": "not_reviewed"
}
api.onesource.ioDeepstate, the on-chain order-book exchange on Robinhood Chain. OHLCV candles for a market.
https://api.onesource.io/deepstate/v1/candles/:book ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Deepstate, the on-chain order-book exchange on Robinhood Chain. OHLCV candles for a market.",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.005,
  "metadata": null,
  "method": "GET",
  "observed_at": 1789084800,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "d501dccd0c616d852a3644376b5923a5b8f7f010c15ed8e85affa4b3b0c666da",
  "schema_fingerprint": "0e32ebdd0fb10e63",
  "service_id": "f6ea567617c593519cab500f5eeede06660bcd594ccea92caccd067442e9eae4",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-09-11T22:06:50.783Z",
  "url": "https://api.onesource.io/deepstate/v1/candles/:book",
  "usage_rights": "not_reviewed"
}
api.onesource.ioSimulate a read-only Ethereum contract call via eth_call - no transaction sent
https://api.onesource.io/api/chain/call ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Simulate a read-only Ethereum contract call via eth_call - no transaction sent",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.005,
  "metadata": null,
  "method": "POST",
  "observed_at": 1789084800,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "d501dccd0c616d852a3644376b5923a5b8f7f010c15ed8e85affa4b3b0c666da",
  "schema_fingerprint": "1b70d8f10530fbf4",
  "service_id": "f900179a1c76ead5fbfb85bf036f26e13621e52a02200be457d20d731b2bc87d",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-09-11T22:02:43.485Z",
  "url": "https://api.onesource.io/api/chain/call",
  "usage_rights": "not_reviewed"
}
api.onesource.ioContract introspection via eth_call - name, symbol, decimals, and ERC20/721/1155 interface support
https://api.onesource.io/api/chain/contract/:address ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Contract introspection via eth_call - name, symbol, decimals, and ERC20/721/1155 interface support",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.005,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "e9acb5a1b5e13745",
  "service_id": "12d2a58552eed81274182ec0ed7f3b8ab55c46ae844f4e76e1890dab68fd3c4f",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T03:54:22.008Z",
  "url": "https://api.onesource.io/api/chain/contract/:address",
  "usage_rights": "not_reviewed"
}
api.onesource.ioTotal supply of an ERC20 or ERC721 token contract via totalSupply (eth_call)
https://api.onesource.io/api/chain/total-supply ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Total supply of an ERC20 or ERC721 token contract via totalSupply (eth_call)",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.003,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "f51816050d215c76",
  "service_id": "1dc186c32fd35e2889c74b7318456955a10b83b5ef4e151365ce8a8da1766fcd",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T04:02:14.782Z",
  "url": "https://api.onesource.io/api/chain/total-supply",
  "usage_rights": "not_reviewed"
}
api.onesource.ioDetect upgradeable proxy patterns (EIP-1967, UUPS, Transparent) via eth_getStorageAt - returns the implementation address behind a proxy
https://api.onesource.io/api/chain/proxy/:address ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Detect upgradeable proxy patterns (EIP-1967, UUPS, Transparent) via eth_getStorageAt - returns the implementation address behind a proxy",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.005,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "e9acb5a1b5e13745",
  "service_id": "2893f1210668f38dfb2c791fd7dfa5174633e2145bfca48d1437f2a2ba5cc2b7",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T03:59:16.037Z",
  "url": "https://api.onesource.io/api/chain/proxy/:address",
  "usage_rights": "not_reviewed"
}
api.onesource.ioERC1155 token balance via balanceOf (eth_call) - how many copies of a token_id a wallet holds
https://api.onesource.io/api/chain/erc1155-balance ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "ERC1155 token balance via balanceOf (eth_call) - how many copies of a token_id a wallet holds",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.003,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "fde89931228ffbf5",
  "service_id": "2ae88b8c7a75122ca819787f7846dc59d0f2770fdb01015a4edb7d4998ebd210",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T03:59:34.603Z",
  "url": "https://api.onesource.io/api/chain/erc1155-balance",
  "usage_rights": "not_reviewed"
}
api.onesource.ioTransaction receipt via eth_getTransactionReceipt - status, gas, and event logs for a mined Ethereum transaction
https://api.onesource.io/api/chain/receipt/:hash ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Transaction receipt via eth_getTransactionReceipt - status, gas, and event logs for a mined Ethereum transaction",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.005,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "6709d5e01fac6651",
  "service_id": "3321073310317ff7759d227e16383183b6bce193cc76560e797ec19b8b3073fd",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T04:02:51.86Z",
  "url": "https://api.onesource.io/api/chain/receipt/:hash",
  "usage_rights": "not_reviewed"
}
api.onesource.ioENS resolve - turn a .eth name into an address, or an address into its primary .eth name, via eth_call on OneSource live Ethereum RPC
https://api.onesource.io/api/chain/ens/:input ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "ENS resolve - turn a .eth name into an address, or an address into its primary .eth name, via eth_call on OneSource live Ethereum RPC",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.005,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "1b2b8ae517223d79",
  "service_id": "432cf6a1dfd8d9e263dbba1b7ef153bd3cee46701a152965d2385f50effcdfc8",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T04:03:02.855Z",
  "url": "https://api.onesource.io/api/chain/ens/:input",
  "usage_rights": "not_reviewed"
}
api.onesource.ioQuery Ethereum contract event logs via eth_getLogs - filter by contract, topic, and block range
https://api.onesource.io/api/chain/events ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Query Ethereum contract event logs via eth_getLogs - filter by contract, topic, and block range",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.005,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "19b3ff41d8f4f00f",
  "service_id": "483c3e53a4537e91fbd76749e7bb491855ad831732f8df1336a725a98bb36952",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T04:02:41.877Z",
  "url": "https://api.onesource.io/api/chain/events",
  "usage_rights": "not_reviewed"
}
api.onesource.ioList every ERC721 NFT token_id a wallet owns in a collection via tokenOfOwnerByIndex (eth_call)
https://api.onesource.io/api/chain/erc721-tokens ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "List every ERC721 NFT token_id a wallet owns in a collection via tokenOfOwnerByIndex (eth_call)",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.008,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "36263ac34e83e178",
  "service_id": "574d08c9f407cae03581da20616e642981ad40125a027dcccba974b017614c1b",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T03:57:32.62Z",
  "url": "https://api.onesource.io/api/chain/erc721-tokens",
  "usage_rights": "not_reviewed"
}
api.onesource.ioLook up the current owner of an ERC721 NFT by token_id via ownerOf (eth_call)
https://api.onesource.io/api/chain/nft-owner ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Look up the current owner of an ERC721 NFT by token_id via ownerOf (eth_call)",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.003,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "09dffa13aa14aad4",
  "service_id": "61ffb1de472762badb292cd9e79f8af5c9ce952a6244d4c266847cb6e2de1ded",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T04:02:57.559Z",
  "url": "https://api.onesource.io/api/chain/nft-owner",
  "usage_rights": "not_reviewed"
}
api.onesource.ioERC20 allowance via allowance (eth_call) - how much a spender is approved to move from an owner's wallet
https://api.onesource.io/api/chain/allowance ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "ERC20 allowance via allowance (eth_call) - how much a spender is approved to move from an owner's wallet",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.003,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "5504b280f2a77628",
  "service_id": "81141273b7b6087f4ef51012bd1c7b353e03f8a73d2d5356b7aef7769a1f3531",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T03:55:43.579Z",
  "url": "https://api.onesource.io/api/chain/allowance",
  "usage_rights": "not_reviewed"
}
api.onesource.ioFull Ethereum transaction details by hash via eth_getTransactionByHash - from, to, value, calldata, block
https://api.onesource.io/api/chain/tx/:hash ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Full Ethereum transaction details by hash via eth_getTransactionByHash - from, to, value, calldata, block",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.008,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "6709d5e01fac6651",
  "service_id": "84f0dc1ce0ebd9e486e09361b53108b8035b554db477973ecddef38940081b82",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T03:59:24.588Z",
  "url": "https://api.onesource.io/api/chain/tx/:hash",
  "usage_rights": "not_reviewed"
}
api.onesource.ioLive wallet balance - native ETH plus any ERC20 tokens in one call via eth_getBalance and balanceOf on OneSource Ethereum RPC
https://api.onesource.io/api/chain/live-balance ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Live wallet balance - native ETH plus any ERC20 tokens in one call via eth_getBalance and balanceOf on OneSource Ethereum RPC",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.003,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "438f283593e42360",
  "service_id": "8995f9ea1dd7c6791f8a66fc0ff6895c3094bee4408b496c553155c7f4547cc3",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T04:02:32.669Z",
  "url": "https://api.onesource.io/api/chain/live-balance",
  "usage_rights": "not_reviewed"
}
api.onesource.ioLatest Ethereum block height - current chain tip via eth_blockNumber
https://api.onesource.io/api/chain/block-number ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Latest Ethereum block height - current chain tip via eth_blockNumber",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.001,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "fcb7f933089cfd70",
  "service_id": "8c880a65b29703b7a78b1af39d396c9d82a1ea01d93ce0cbe18812b64b67ca49",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T04:03:09.311Z",
  "url": "https://api.onesource.io/api/chain/block-number",
  "usage_rights": "not_reviewed"
}
api.onesource.ioNFT metadata, traits, and image URI for any ERC721 or ERC1155 token - fetched via eth_call with IPFS resolution (OneSource live Ethereum RPC)
https://api.onesource.io/api/chain/nft-metadata ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "NFT metadata, traits, and image URI for any ERC721 or ERC1155 token - fetched via eth_call with IPFS resolution (OneSource live Ethereum RPC)",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.008,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "09dffa13aa14aad4",
  "service_id": "8d94db5cabb2652e3c0bd2308b398d94f4a1bdf67757bd5ef0ba63876474e65e",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T03:57:10.123Z",
  "url": "https://api.onesource.io/api/chain/nft-metadata",
  "usage_rights": "not_reviewed"
}
api.onesource.ioEthereum chain ID (EIP-155) via eth_chainId - confirm which chain a network is on
https://api.onesource.io/api/chain/chain-id ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Ethereum chain ID (EIP-155) via eth_chainId - confirm which chain a network is on",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.001,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "fcb7f933089cfd70",
  "service_id": "947cd0d5e2e87b320754f2a620304f0e568d2a01ac358637039b594137028ba0",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T01:31:04.877Z",
  "url": "https://api.onesource.io/api/chain/chain-id",
  "usage_rights": "not_reviewed"
}
api.onesource.ioERC20 Transfer logs via eth_getLogs - decoded sender, recipient, and amount for a token or wallet
https://api.onesource.io/api/chain/erc20-transfers ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "ERC20 Transfer logs via eth_getLogs - decoded sender, recipient, and amount for a token or wallet",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.005,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "775817b2ee42b9d5",
  "service_id": "9a04d963e93aaceefc4a8b9adcc9ca35c5455b66b6ebf127e7cec0a18898e5ab",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T04:02:26.673Z",
  "url": "https://api.onesource.io/api/chain/erc20-transfers",
  "usage_rights": "not_reviewed"
}
api.onesource.ioEVM network info - chain ID, block height, gas price, chain head age, and chain characteristics in one batched RPC call (eth_chainId + eth_blockNumber + eth_gasPrice + latest block header)
https://api.onesource.io/api/chain/network-info ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "EVM network info - chain ID, block height, gas price, chain head age, and chain characteristics in one batched RPC call (eth_chainId + eth_blockNumber + eth_gasPrice + latest block header)",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.001,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "fcb7f933089cfd70",
  "service_id": "9a520109d0edeaf797aea8186c1b9976e79a715dcd49e37d50f19f594213f9c7",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T03:56:58.145Z",
  "url": "https://api.onesource.io/api/chain/network-info",
  "usage_rights": "not_reviewed"
}
api.onesource.ioNext transaction nonce for any Ethereum wallet via eth_getTransactionCount - how many txs it has sent
https://api.onesource.io/api/chain/nonce/:address ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Next transaction nonce for any Ethereum wallet via eth_getTransactionCount - how many txs it has sent",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.003,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "6ae9209cb032b2b4",
  "service_id": "aeecd8d91ddb69d668a9b9a122a40de4f0d2913d57ec824b0881c1be802cd9b8",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T04:02:06.749Z",
  "url": "https://api.onesource.io/api/chain/nonce/:address",
  "usage_rights": "not_reviewed"
}
api.onesource.ioCheck if an Ethereum address is a contract via eth_getCode - returns deployed bytecode
https://api.onesource.io/api/chain/code/:address ↗

Historical reference. Full payment options and token precision were not retained.

Source and evidence
{
  "description": "Check if an Ethereum address is a contract via eth_getCode - returns deployed bytecode",
  "domain": "api.onesource.io",
  "evidence_mode": "legacy",
  "extension_names": [],
  "input_schema": null,
  "legacy_network": "eip155:8453",
  "legacy_pay_to": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
  "legacy_price_basis": "unverified_assumption_of_six_decimals",
  "legacy_price_usd": 0.003,
  "metadata": null,
  "method": "GET",
  "observed_at": 1787011200,
  "offers": [],
  "operator_identity": "not_verified",
  "output_schema": null,
  "protocol": "x402",
  "protocol_version": null,
  "quality": "not_evaluated",
  "run_id": "90e2735512d5727624c10472f7909c6a04717398117fe7a159e3cf2b6c381457",
  "schema_fingerprint": "e9acb5a1b5e13745",
  "service_id": "b4ede77046f131112f471b3dd0bb8f11c36e93acef8603fe17745dffc1be5dca",
  "source": "cdp-bazaar",
  "source_updated_at": "2026-08-18T03:59:29.528Z",
  "url": "https://api.onesource.io/api/chain/code/:address",
  "usage_rights": "not_reviewed"
}
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Outcome evidence starts with your workflow.

Private intake is ready for task IDs, charges, retries, result fingerprints and your evaluation criteria. Public performance comparisons need measured results; we do not have that benchmark yet.

Discuss an outcome integration
Collection coverage

Discovery comes from configured registries. Endpoint checks record responses, not task success. Older snapshots retain less detail. Customer usage, commercial terms and task evaluations require additional evidence.

1,423 historical or current source records quarantined during normalization; they are excluded from public comparisons.

43 of 43 archive objects verified in Backblaze. Last verification: Sep 12, 2026, 05:56 UTC.

Collection status JSON