{"uid":"cap_3BfzVgUrF1G5fhfA9FZZo","slug":"us-nonprofit-name-search-ein-lookup-abcf6b16","name":"US Nonprofit Name Search & EIN Lookup","description":"Resolve a US nonprofit name to ranked candidate organizations, each with EIN, name, city, state, decoded NTEE, subsection and a match score. The cheap first step for EIN-to-name disambiguation, optionally narrowed by state, NTEE category or 501(c) subsection.","url":"https://api.agentstools.dev/nonprofit/search","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"},"queryParams":{"type":"object","required":["name"],"properties":{"name":{"type":"string","description":"Organization name to search"},"ntee":{"type":"integer","maximum":10,"minimum":1,"description":"Optional NTEE category id (1 to 10)"},"limit":{"type":"integer","maximum":25,"minimum":1,"description":"Maximum candidates to return (default 10)"},"state":{"type":"string","examples":["NY","CA","DC"],"description":"Optional 2-letter US state filter"},"c_code":{"type":"integer","description":"Optional 501(c) subsection number, e.g. 3"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.008","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":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_MUTQ9Pps0zFCIrJ8ZJ_wL","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Resolves a US nonprofit organization name to ranked candidate matches, each with EIN, name, location, NTEE category, 501(c) subsection, and a match score.","exampleAgentPrompt":"Can you find the EIN for a nonprofit called 'Doctors Without Borders' in New York — it should be a 501(c)(3), so filter to c_code 3 and give me the top 5 matches?","exampleUseCases":null,"resultDescription":"A ranked list of up to 25 candidate nonprofit organizations matching the queried name, each record containing: EIN, organization name, city, state, decoded NTEE category description, 501(c) subsection code, and a numeric match score indicating confidence of the name match.","failureModes":["No matches found for obscure or misspelled organization name — returns empty candidate list","Ambiguous name returns many low-confidence matches requiring further filtering by state or NTEE","Invalid state abbreviation or out-of-range NTEE/c_code values return validation errors","Name too short or generic results in very large candidate sets with low discriminability","Payment failure or insufficient USDC balance returns 402 Payment Required"],"whenToPreferThis":"Use this endpoint as the first step when you have a nonprofit organization name and need its EIN, especially when the name may be ambiguous or shared by multiple organizations. Prefer this over manual IRS lookups when you need ranked candidates with match scores for disambiguation. Use state, NTEE category, or 501(c) subsection filters to narrow results when you have additional context about the organization.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T07:12:59.881Z","isFirstParty":false}