Project API pricing
Pay per call. No subscription, no account and no API key. Prices are in USDC on Base, paid with the x402 protocol. An unpaid request returns HTTP 402 with the exact price first, so you always see the cost before you pay.
| Endpoint (GET) | What it returns | Price per call (USDC) |
|---|---|---|
/paid/hello | Smoke / connectivity check | $0.001 |
/paid/sam/opportunities | SAM.gov contract opportunities (slim JSON + uiLink) | $0.01 |
/paid/usaspending/awards | USASpending.gov award search (slim JSON + uiLink) | $0.01 |
/paid/federalregister/documents | Federal Register rules/notices/EOs (slim JSON + html uiLink) | $0.01 |
/paid/openfda/drug-events | openFDA FAERS drug adverse events (slim JSON + uiLink) | $0.01 |
/paid/clinicaltrials/studies | ClinicalTrials.gov studies search (slim JSON + uiLink) | $0.01 |
/paid/nhtsa/recalls | NHTSA vehicle recalls by make/model/year (slim JSON + uiLink) | $0.01 |
/paid/usgs/earthquakes | USGS earthquake events (slim GeoJSON features + uiLink) | $0.01 |
/paid/openfda/device-events | openFDA MAUDE device adverse events (slim JSON + uiLink) | $0.01 |
/paid/sec/company-tickers | SEC company tickers (CIK/ticker/title + Edgar uiLink) | $0.01 |
/paid/nih/reporter/projects | NIH RePORTER project search (slim JSON + uiLink) | $0.01 |
/paid/openalex/works | OpenAlex works search (slim JSON + uiLink) | $0.01 |
/paid/fema/disasters | FEMA disaster declarations (slim JSON + uiLink) | $0.01 |
/paid/openfda/food-enforcement | openFDA food enforcement recalls (slim JSON + uiLink) | $0.01 |
/paid/nws/alerts | NWS/NOAA active weather alerts by state (slim JSON + uiLink) | $0.01 |
/paid/treasury/debt-to-penny | Treasury Fiscal Data debt to the penny (slim JSON + uiLink) | $0.01 |
/paid/nsf/awards | NSF Award Search (slim JSON + uiLink) | $0.01 |
/paid/pubmed/search | NCBI PubMed bibliographic search via esearch (slim JSON + uiLink) | $0.01 |
/paid/sec/submissions | SEC EDGAR submissions by CIK (entity + capped recent filings + uiLink) | $0.01 |
/paid/eric/search | ERIC education literature search via IES/ED (slim JSON + uiLink) | $0.01 |
/paid/noaa/coops | NOAA CO-OPS water levels / tide predictions (slim JSON + uiLink) | $0.01 |
/paid/ecfr/search | eCFR full-text regulatory search (slim JSON + uiLink) | $0.01 |
/paid/europepmc/search | Europe PMC life-sci article search (slim JSON + uiLink; OA IDs) | $0.01 |
/paid/cms/nppes | CMS NPPES NPI Registry provider search (slim JSON + uiLink) | $0.01 |
/paid/gleif/lei | GLEIF LEI legal-entity identity lookup (slim JSON + uiLink; ≠ yente) | $0.01 |
/paid/worldbank/indicator | World Bank v2 country indicator time series (slim JSON + uiLink) | $0.01 |
/paid/wikidata/sparql | Wikidata SPARQL SELECT/ASK (bounded JSON + uiLink) | $0.01 |
/paid/arxiv/search | arXiv Atom API preprint search (slim JSON + abs/pdf links) | $0.01 |
/paid/usitc/hts | USITC Harmonized Tariff Schedule search (slim JSON + duty rates) | $0.01 |
/paid/epa/echo | EPA ECHO facility compliance search (slim JSON + facility report link) | $0.01 |
/paid/nhtsa/vpic | NHTSA vPIC VIN decode (slim JSON; not the recalls feed) | $0.01 |
/paid/nist/nvd | NIST NVD CVE/CPE search with CISA KEV flags (slim JSON, no key) | $0.01 |
/paid/ror/org | Research Organization Registry lookup (slim JSON) | $0.01 |
/paid/datacite/doi | DataCite DOI metadata (slim JSON) | $0.01 |
/paid/cfpb/hmda | CFPB HMDA data-browser aggregations (slim JSON, not raw LAR) | $0.01 |
/paid/fdic/banks | FDIC BankFind institution search (slim JSON, no key) | $0.01 |
/paid/cms/open-payments | CMS Open Payments Sunshine Act search (slim JSON, no key) | $0.01 |
/paid/senate/lda | Senate LDA lobbying filings (slim JSON, no key) | $0.01 |
/paid/zenodo/records | Zenodo research record search (slim JSON, no key) | $0.01 |
/paid/cpsc/recalls | CPSC consumer-product recalls (slim JSON, no key) | $0.01 |
/paid/cfpb/complaints | CFPB consumer complaint search (slim JSON, no key) | $0.01 |
/paid/usgs/water | USGS water daily or continuous observations (slim JSON, no key) | $0.01 |
/paid/nyfed/rates | NY Fed latest SOFR and reference rates (slim JSON, no key) | $0.01 |
/paid/opencitations/count | OpenCitations citation count for a DOI (slim JSON, no key) | $0.01 |
/paid/core/works | CORE.ac.uk works search (slim JSON, no key) | $0.01 |
/paid/who/gho | WHO GHO indicator values (slim JSON, no key) | $0.01 |
/paid/gbif/species | GBIF species name match (slim JSON, no key) | $0.01 |
/paid/ietf/rfc | IETF RFC metadata (slim JSON, no key) | $0.01 |
/paid/loc/search | Library of Congress search (slim JSON, no key) | $0.01 |
/paid/openlibrary/search | Open Library book search (slim JSON, no key) | $0.01 |