{ "x402Version": 2, "id": 12361, "slug": "12361", "resource": "https://kairostamp.com/api/v1/digest", "description": "URL digest receipt: server-side fetch of one public http/https URL, returning a time-stamped receipt with the HTTP status, final URL, content type, byte length, SHA-256 of the response body, redirect chain, receipt id and tamper-evident hash-chain entry. Single GET query parameter (url). One call performs one fetch; there is no monitoring and no retry.", "type": "http", "accepts": [ { "scheme": "exact", "network": "eip155:8453", "payTo": "0xdB6F694aE695C632C82677a50593B46137808453", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "2000", "maxTimeoutSeconds": 300 } ], "outputSchema": { "bazaar": { "info": { "input": { "method": "GET", "queryParams": { "url": "https://example.com/" }, "type": "http" }, "output": { "example": { "chain_hash": "d084fff3e5d852089814f7d4d3ffe9d04d1a39ce9d2e0573a95f24cf78fb584d", "previous_chain_hash": "da27fe24efc04330962d1b95c7929a9de901ad0ea49a7997edf9f2731bf88def", "receipt": { "byte_length": 559, "content_type": "text/html", "fetched_at": "2026-08-23T05:32:12.771Z", "redirect_chain": [], "sha256": "ff67a9d764d6a2367a187734e697f6a53217db9a21c101d410a113ca871a299d", "status_code": 200, "text_preview": "Example Domain…", "url": "https://example.com/" }, "receipt_id": "85cd424c-b68b-440e-8f4f-e02147799f30" }, "type": "json" } }, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "input": { "additionalProperties": false, "properties": { "method": { "enum": [ "GET" ], "type": "string" }, "queryParams": { "additionalProperties": false, "examples": [ { "url": "https://example.com/" } ], "properties": { "url": { "description": "Public http/https URL to fetch. Sent as the `url` query parameter.", "examples": [ "https://example.com/" ], "format": "uri", "maxLength": 2048, "type": "string" } }, "required": [ "url" ], "type": "object" }, "type": { "const": "http", "type": "string" } }, "required": [ "type", "method" ], "type": "object" }, "output": { "properties": { "example": { "properties": { "chain_hash": { "description": "SHA-256 hash-chain value of this receipt.", "type": "string" }, "previous_chain_hash": { "description": "SHA-256 hash-chain value of the previous receipt.", "type": [ "string", "null" ] }, "receipt": { "properties": { "byte_length": { "type": "integer" }, "content_type": { "type": [ "string", "null" ] }, "fetched_at": { "format": "date-time", "type": "string" }, "redirect_chain": { "items": { "format": "uri", "type": "string" }, "type": "array" }, "sha256": { "description": "SHA-256 of the response body bytes.", "type": "string" }, "status_code": { "type": "integer" }, "text_preview": { "type": [ "string", "null" ] }, "url": { "description": "Final URL that was fetched.", "format": "uri", "type": "string" } }, "required": [ "url", "fetched_at", "status_code", "content_type", "byte_length", "sha256", "redirect_chain" ], "type": "object" }, "receipt_id": { "description": "Evidence receipt identifier.", "format": "uuid", "type": "string" } }, "required": [ "receipt_id", "chain_hash", "receipt" ], "type": "object" }, "type": { "type": "string" } }, "required": [ "type" ], "type": "object" } }, "required": [ "input" ], "type": "object" } }, "builder-code": { "info": { "s": [ "cdp_sdk_server" ] }, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "additionalProperties": false, "properties": { "a": { "description": "App builder code", "pattern": "^[a-z0-9_]{1,32}$", "type": "string" }, "s": { "description": "Service builder codes", "items": { "pattern": "^[a-z0-9_]{1,32}$", "type": "string" }, "maxItems": 11, "type": "array" }, "w": { "description": "Wallet builder code", "pattern": "^[a-z0-9_]{1,32}$", "type": "string" } }, "type": "object" } }, "eip2612GasSponsoring": {}, "erc20ApprovalGasSponsoring": {} }, "tags": [ "bazaar", "builder-code", "eip2612GasSponsoring", "erc20ApprovalGasSponsoring" ], "sourceHost": "kairostamp.com", "lastUpdated": "2026-08-23T09:07:11.912Z", "quality": { "calls30d": 1, "uniquePayers30d": 1, "lastCalledAt": "2026-08-23T09:07:09.772Z" }, "liveness": {}, "verified": false, "featured": false, "provider": { "host": "kairostamp.com", "manifest_name": "kairostamp.com", "source": "cdp-mirror", "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources", "submitted_at": "2026-09-18T22:00:31.484Z" } }