{"uid":"cap_VVplZ6nMj9ehXmSzokHO8","slug":"capital-markets-knowledge-graph-api-6e6e2489","name":"Capital Markets Knowledge Graph API","description":"One paid call on capitalmarketsknowledgegraph.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://capitalmarketsknowledgegraph.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.","url":"https://capitalmarketsknowledgegraph.ai/api?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"}}},"output":{"type":"object"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_fMLPzhZM9SPZFXw7-KHGB","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Retrieves a signed, public-record node or record from a capital markets knowledge graph, returning an EdDSA-signed receipt permanently resolvable by nonce.","exampleAgentPrompt":"Can you pull the public record for a capital markets node from the knowledge graph and give me the signed receipt I can use to verify it later?","exampleUseCases":[{"title":"Verify a market entity record","prompt":"I need to look up the official public record for a specific market node in the capital markets knowledge graph and get a signed receipt I can use as proof."},{"title":"Fetch a financial product's official record","prompt":"Can you retrieve the knowledge graph record for this financial product and return the EdDSA-signed receipt with the nonce so I can resolve it later?"},{"title":"Audit trail for a capital markets node","prompt":"Pull the permanently resolvable signed record for this capital markets entity from the knowledge graph so I can use it for audit documentation."}],"resultDescription":"Returns the public record for the requested capital markets node or product, along with an EdDSA-signed receipt that is permanently resolvable at https://capitalmarketsknowledgegraph.ai/x402/receipt/{nonce}, providing cryptographic proof of the data retrieval.","failureModes":["Invalid or missing 'type' or 'method' input fields return a validation error","Unsupported HTTP method (e.g. POST or PUT) returns an error since only GET, HEAD, DELETE are allowed","Payment not fulfilled results in HTTP 402 response blocking data access","Node or record not found returns an empty or null result","Nonce collision or receipt resolution failure may prevent permanent link from resolving"],"whenToPreferThis":"Choose this endpoint when you need a cryptographically verifiable, permanently resolvable public record from a structured capital markets knowledge graph, especially when auditability and proof of data retrieval matter. Prefer this over generic financial data APIs when you need an EdDSA-signed receipt tied to a specific nonce for downstream verification or compliance purposes.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T12:34:34.160Z","isFirstParty":false,"canonicalSlug":"capital-markets-knowledge-graph-api-6e6e2489"}