{"uid":"cap_omAwqPvxszBChXg6c0RH3","slug":"osf-open-source-filings-ai-ml-model-search-ad4328c3","name":"OSF Open Source Filings — AI/ML Model Search","description":"OSF is a live marketplace of provenance stamped public domain government and scientific data, built for autonomous agents that pay per record over x402 micropayments on Base. A paid MCP server in the official MCP Registry, discoverable on the Coinbase CDP Bazaar.","url":"https://api.osf-master-server.com/x402/models/search/%7Bquery%7D","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"},"pathParams":{"type":"object","required":["query"],"properties":{"query":{"type":"string","description":"Keyword(s): model name, author or org, task, library, or license. E.g. 'image segmentation' or 'nvidia'."}}},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"result":"MATCHES_FOUND","matches":[{"task":"image-segmentation","title":"nvidia/segformer-b5-finetuned-cityscapes-1024-1024","author":"nvidia","source":"HUGGINGFACE","downloads":128429,"record_id":12345}],"match_count":1}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_IoirwWCEvfQUidUbK9pK_","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Search Hugging Face Hub AI/ML models by name, author, organization, task, library, or license and return provenance-stamped matching records","exampleAgentPrompt":"Can you search OSF for AI models related to 'image segmentation' on Hugging Face — I want to see what NVIDIA has published and how popular they are?","exampleUseCases":[{"title":"Discover top models for a task","prompt":"Search for the best open-source models for 'text-to-speech' on Hugging Face — I want to see who published them and how many downloads they have."},{"title":"Find organization's published models","prompt":"Look up all AI models published by 'google' on Hugging Face through OSF so I can see what tasks they cover and pick the most downloaded one."},{"title":"Research model options before fine-tuning","prompt":"I'm building an image classification pipeline — can you find available 'image classification' models on Hugging Face so I can compare authors and download counts before choosing one to fine-tune?"}],"resultDescription":"Returns a JSON object with a result status ('MATCHES_FOUND' or similar), a list of matching model records each containing the model title, author, task type, source (e.g. HUGGINGFACE), download count, and a record ID, plus a total match count. Records are provenance-stamped and sourced from the Hugging Face Hub.","failureModes":["No matches found for the query keyword — result may be empty or return zero match_count","Vague or misspelled query terms returning irrelevant models","Payment failure over x402 micropayment channel blocking the request","Query string URL encoding issues with special characters","Rate limiting or server unavailability returning 402 or 5xx errors"],"whenToPreferThis":"Choose this endpoint when you need to discover and compare AI/ML models indexed on Hugging Face Hub with provenance guarantees and structured metadata (author, task, downloads). Prefer it over direct Hugging Face API calls when you need verifiable, stamped records for audit trails or when operating in an agent pipeline that pays per record via x402 micropayments on Base.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:44:42.457Z","isFirstParty":false}