Explore APIs

CityBikes bike-share network lookup (keyless). POST {id|network} required (or q/city/country with limit for filtered list). Unpaid empty → 402; after settle empty/invalid → 400 charged:false. NEVER returns full 113KB networks dump — filter/paginate only. Soft disclose tfl-line-status / mbta-* (transit).

CISA Known Exploited Vulnerabilities catalog (keyless). POST {} or {cve_id?}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Disclose adjacency: hashlookup-circl / openssf-scorecard / osv-vuln-lookup / nvd-cve-lookup / crt-sh-ct-lookup (≠ those products).

ChEMBL target lookup (keyless). POST {q|query}/{target_chembl_id?}/{limit?}. Empty -> 400 not charged.

ChEMBL molecule lookup (keyless). POST {query} or {chembl_id} and/or {limit?}. Empty → 404 not charged.

ChEBI chemical entity/compound lookup (keyless). POST {chebi_id}/{id?}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Disclose adjacency: pubchem-compound / chembl-*-lookup / kegg-compound-lookup (≠ those pages).

CelesTrak GP / TLE elements (keyless). POST {group|name|catnr,limit?}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Soft disclose spaceflight / wheretheiss / jpl / launch-library.

Cat Fact Ninja random fact (keyless). POST {max_length?} optional. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Soft disclose dog-ceo-breeds / meowfacts.

BLS publicAPI timeseries lookup (keyless). POST {series_id} and/or {startyear?,endyear?}. Empty → 404 not charged.

bioRxiv preprint details by date (keyless). POST {from?}/{to?}/{cursor?}/{server?}. Empty -> 400 not charged. medrxiv/Crossref adjacency disclosed.

BART service advisories BSA (Bay Area; public demo key). POST {cmd|station?}. Empty -> 400 not charged. Disclose TfL/MBTA transit adjacency.

Anitya / release-monitoring package versions (keyless). POST {name|project|q,limit?}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Soft disclose dockerhub / package-registry / foojay / deps-dev / endoflife.

Amtrak live trains (keyless via Amtraker). POST {train?}/{route?}. Empty -> 400 not charged. bart/TfL/MBTA transit adjacency disclosed.

AlphaFold DB structure prediction by UniProt accession (keyless). POST {uniprot_accession} or {accession}. Empty → 404 not charged.

Palette contrast matrix (WCAG AA/AAA) + nearest passing color suggestions. Offline.

Location and areas for a Great Britain postcode: latitude and longitude, ward, district, constituency and region, as JSON.

Machine-consumable web3 integration-risk decision for buyer agents ($0.10).

Unpaid probe of a public https URL for x402 payment requirements ($0.005 USDC). Never pays. Returns HTTP status, latency, whether 402/payment-requirements parse, networks, min price, schema flag. https only; caps ~12s, 200KB, 5 redirects. Factual only; as is, no guarantee. Not a rating or certification.

Purchase one canonical Nob7e botanical intelligence product selected from the public marketplace.

Get price history

Screen a US-listed company by CIK: severe 8-K items, late-filing notices, going-concern wording, LEI status. Never says safe.

Rooftop solar estimate for a US address: system size, monthly and annual production (NASA POWER), utility rate (EIA-861 2024), installed cost (LBNL Tracking the Sun), payback, 25-year savings and the 2026 federal credit status.

Sunrise, sunset, solar noon, three twilights, golden and blue hour for a lat/lon and date; handles polar day and night.

Has this place been built on or cleared in the last 12 months? Sentinel-2 satellite change detection for any lat/lon: NDVI/NDBI deltas, change direction, confidence and the scene-by-scene evidence.

Single node — properties + risk grade only (no neighborhood)

Execute HTTPS requests reliably with automatic retries for rate limits, temporary server failures, network errors and timeouts. One $0.02 USDC payment creates one durable job with up to 8 attempts and a 24 hour lifetime.

Fetch any URL and, without paying, decode its x402 402 Payment Required challenge: price (atomic and formatted for known stablecoins), asset, network, payTo, resource, description, timeout and any input schema. Flags MPP and Bazaar discovery extensions. Returns free:true when no payment is needed. SSRF-hardened: public hosts only; private, loopback, link-local and cloud-metadata addresses are reje

gemm-phi-irisxe-20261013 — q=0.82, evidence=4, expires 2027-04-26

Money Reactor paid API - catalog: https://mr-river9.makar52nn2016.workers.dev/.well-known/x402.json

Money Reactor paid API - catalog: https://mr-river8.makar52nn2016.workers.dev/.well-known/x402.json

Money Reactor paid API - catalog: https://mr-river7.makar52nn2016.workers.dev/.well-known/x402.json