Open Source Filings (OSF)

Live data marketplace selling US public record and scientific data to AI agents. 4.8 million+ records across 78 sources: cyber vulnerabilities, sanctions screening, federal court opinions, SEC filings, scholarly research, healthcare, FDA recalls, government spending, economic indicators, regulations, environment, consumer safety, US patents, FAA aircraft registrations, and AI model metadata. Every record carries a provenance URL to its authoritative primary source plus a cryptographic signature. Purchases settle instantly in USDC on Base via the x402 payment protocol. Also reachable over MCP with 18 tools including a free catalog.

Skills

• Sanctions and KYC screen
  Screen a person or entity name against eleven authorities: OFAC SDN, OFAC Consolidated, EU, UK OFSI, UN Security Council, US Trade CSL, FBI Wanted, World Bank debarment, HHS OIG exclusions, SAM exclusions, Federal Reserve enforcement actions. 291,000+ parties with aliases. $0.08 per screen with audit record.
  sanctionskyccompliancescreening
• CVE exploit check
  Check any CVE id against NVD, the CVE Program, ENISA EUVD, and CISA KEV known exploited list, with CVSS scores. $0.08 per check.
  cvevulnerabilitysecuritykev
• Cyber threat search
  Keyword search across 700,000+ vulnerability and advisory records: full NVD corpus since 1988, CVE Program JSON 5, ENISA EUVD, CISA KEV, 3,900+ CISA ICS advisories, full CWE catalog, ATT&CK. $0.05 per search.
  cybersecurityvulnerabilitiesadvisories
• US case law search
  The dedicated US case law product: 1.55 million+ federal court opinions covering SCOTUS all time and all 13 federal appellate circuits, each verifiable against CourtListener and the court record, plus SEC litigation releases and SEC administrative proceedings. For case law research, precedent checks, citation lookup, and enforcement history. $0.05 per search.
  case lawcourt opinionsSCOTUSappellate circuitslegal researchprecedentcitationsSEC enforcement
• Federal regulations and rulemaking search
  Search US federal regulations and rulemaking: the electronic Code of Federal Regulations, the Federal Register, congressional legislation from Congress.gov, Regulations.gov dockets and public comments, and GovInfo publications. Returns title, citation, agency, and dates with a provenance URL. For regulatory compliance, policy monitoring, and rulemaking research. Court opinions are a separate skill. $0.05 per search.
  federal regulationsrulemakingCFRFederal RegisterlegislationCongressregulatory compliancepolicy monitoringdockets
• Scholarly research search
  Search 1.2 million+ scholarly works: arXiv 700,000+ preprints, PubMed, OpenAlex, Semantic Scholar, Crossref, ClinicalTrials.gov. Frontier science coverage with citations and provenance. $0.05 per search.
  researchpaperssciencescholarly
• SEC filings search
  SEC EDGAR filings, 13F institutional holdings, insider transactions, litigation and administrative proceedings, GLEIF entity data. $0.05 per search, records from $0.01.
  secfilingsfinancesecurities
• Entity lookup
  Company and entity resolution across SEC, GLEIF LEI, and sanctions data. $0.01 per lookup.
  entitycompanylei
• Healthcare records search
  CMS provider registry, RxNorm drug concepts, ClinicalTrials.gov studies, FDA drug and device recall enforcement to 2004. $0.05 per search.
  healthcareprovidersdrugstrials
• Government spending search
  Federal awards, contract opportunities, FEC campaign finance. $0.05 per search.
  governmentspendingcontractsfec
• Economic indicators search
  FRED, BLS, BEA, Census, FDIC, USDA data series. $0.05 per search.
  economicsindicatorsstatistics
• Environment data search
  EPA, NOAA, USGS environmental and hazard records. $0.05 per search.
  environmentclimateepa
• Consumer protection search
  CPSC and NHTSA recalls, FDA enforcement actions. $0.05 per search.
  consumerrecallssafety
• US patent search
  Search granted US patents from the USPTO Open Data Portal by invention title, assignee company, inventor name, patent number, or technology area. Returns patent number, title, grant date, filing date, assignee, inventors, and USPC classification with a provenance URL. For prior art checks, freedom to operate research, competitor IP monitoring, and patent portfolio lookup.
  patentsusptointellectual propertyprior artip researchfreedom to operate
• FAA aircraft registry search
  Search US civil aircraft registrations from the FAA Releasable Aircraft Database by tail number (N number), registered owner, city, state, serial number, or year of manufacture. Returns tail number, registrant, location, manufacture year, and airworthiness class with a provenance URL. For aircraft ownership lookup, fleet research, asset tracing, and counterparty due diligence.
  aircraftfaatail numberaviationownership lookupasset tracingdue diligence
• AI model registry search
  Search AI and machine learning models on the Hugging Face Hub by name, author or organization, task, library, or license. Returns model id, author, task pipeline, library, declared license, and download and like counts with a provenance URL. For model selection, license screening, and dependency review.
  ai modelsmachine learninghugging facemodel registryllmmodel licensemlops

How to call

https://api.osf-master-server.com/mcp