{"uid":"cap_slyZnacbT-kH3-FW91-pk","slug":"messari-39b911e3","name":"Messari Funding Rounds Investor Participation","description":"Get investor participation across funding rounds and stages.","url":"https://api.messari.io/funding/v1/rounds/investors","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"page":{"type":"integer","minimum":1},"type":{"type":"array","items":{"type":"string"}},"limit":{"type":"integer","minimum":1},"stage":{"type":"array","items":{"type":"string"}},"investorId":{"type":"array","items":{"type":"string"}},"isTokenFunded":{"type":"boolean"},"announcedAfter":{"type":"string"},"fundedEntityId":{"type":"array","items":{"type":"string"}},"announcedBefore":{"type":"string"},"raisedAmountMax":{"type":"number"},"raisedAmountMin":{"type":"number"}}},"responseSchema":{"example":{"data":[{"persons":[],"projects":[],"organizations":[{"id":"org-001","name":"Example Ventures"}],"fundingRoundId":"round-001"}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.25","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.25/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_l4vh8D18F2Lg3BGfc8p6n","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.25","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns investor participation data across cryptocurrency funding rounds, filterable by stage, investor, entity, amount, and token funding type.","exampleAgentPrompt":"Show me all the investors who participated in Series A crypto funding rounds announced after January 2023 that raised at least $5 million, and limit the results to 25 per page — token-funded rounds only.","exampleUseCases":null,"resultDescription":"A paginated list of investor participation records across crypto funding rounds, including investor IDs, funded entity IDs, funding stage, round type, raised amounts, and announcement dates, filtered according to the provided parameters.","failureModes":["Invalid investorId or fundedEntityId returns empty results or 404","Invalid stage or type enum values may return 400 bad request","announcedAfter/announcedBefore date format errors return 400","raisedAmountMin greater than raisedAmountMax returns error or empty set","Payment not provided or insufficient triggers 402 Payment Required","Rate limiting or quota exceeded returns 429"],"whenToPreferThis":"Use this endpoint when you need to identify which investors participated in specific crypto funding rounds, filter by funding stage, entity, amount range, or date window, and need structured investor-level participation data. Prefer this over the sibling funding rounds endpoint when the focus is on investor identity and participation patterns rather than round-level aggregates.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T13:17:14.380Z","isFirstParty":false}