Explore APIs

Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.

Projects: 4.4K
Paid endpoints: 87K
Paid calls · 30 days: 885K
Launched here: 0

Other services

583 results

Most used Rising Most payers Newest Cheapest A–Z

L
Locus x402 ServicesOther services
Locus public pay-per-use API
Baseanthropic.x402.stage.paywithlocus.com
from $0.001
1 endpoint
2
2 payers
1
1yc.devOther services
Card BIN lookup: brand, issuer, country and type for a 6 to 8 digit BIN. Only an exact bundled match is charged.
Base1yc.dev
from $0.01
1 endpoint
2
2 payers
X
x402 PreflightOther services
Payability preflight: audits an x402 seller's 402 challenge
Base Sepoliax402.nodeventures.io
from $0.005
1 endpoint
2
1 payers
W
well-015-municipal-notices.rainmaker-wells.workers.devOther services
Recent public municipal notices as clean items with source links ($0.005 USDC). area: buffalo (Buffalo Planning Board/ZBA agendas + Erie County tax-foreclosure auction docs) or chicago (City Council zoning reclassifications). Optional since (YYYY-MM-DD), keyword, kinds, limit. Cached public records; facts only, no advice; as is, no guarantee, inputs not retained; public source pages may be briefly
Basewell-015-municipal-notices.rainmaker-wells.workers.dev
from $0.005
1 endpoint
2
1 payers
I
Import PreflightOther services
Validate a Shopify product CSV before import and detect structural and Shopify-specific import problems. Also supports generic CSV structural validation.
Base Sepoliaimport-preflight-development.import-preflight-4618bf7e.workers.dev
from $0.005
1 endpoint
2
1 payers
X
x402scanOther services
Paginated list of merchants (top recipients by volume)
Basex402scan-git-router-117-merit-systems.vercel.app
from $0.01
1 endpoint
1
1 payers
X
x402-v2-mint-public-holidays.vercel.appOther services
Public holidays via Nager.Date (keyless). ISO country + year → holiday list.
Basex402-v2-mint-public-holidays.vercel.app
from $0.002
1 endpoint
1
1 payers
X
x402-v2-mint-osint-graph.vercel.appOther services
Public Wikidata relationship graph (≤2 hops). Fixed property list; privacy bounds (no family/contact). Empty+reason → charged:false. Amp port.
Basex402-v2-mint-osint-graph.vercel.app
from $0.01
1 endpoint
1
1 payers
X
x402-v2-mint-entity-schema-extract.vercel.appOther services
Extract entities/fields from text into a caller JSON Schema. Wikidata QID links + source spans. Fail closed (no charge) if output does not validate.
Basex402-v2-mint-entity-schema-extract.vercel.app
from $0.01
1 endpoint
1
1 payers
X
x402-v2-mint-country-info.vercel.appOther services
Country metadata (keyless). name or code (cca2/cca3) → name/capital/region/currencies/languages/flags/population. restcountries v3.1 with apicountries fallback.
Basex402-v2-mint-country-info.vercel.app
from $0.002
1 endpoint
1
1 payers
X
x402-v2-mint-a11y-color-check.vercel.appOther services
Palette contrast matrix (WCAG AA/AAA) + nearest passing color suggestions. Offline.
Basex402-v2-mint-a11y-color-check.vercel.app
from $0.002
1 endpoint
1
1 payers
U
UK Postcode LookupOther services
Location and areas for a Great Britain postcode: latitude and longitude, ward, district, constituency and region, as JSON.
Basex402-lab.vercel.app
from $0.002
1 endpoint
1
1 payers
W
well-012-x402-probe.rainmaker-wells.workers.devOther services
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.
Basewell-012-x402-probe.rainmaker-wells.workers.dev
from $0.005
1 endpoint
1
1 payers
V
valuation-api-production-1c7c.up.railway.appOther services
Get price history
Basevaluation-api-production-1c7c.up.railway.app
from $0.01
1 endpoint
1
1 payers
I
Inspect x402 endpointOther services
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
Basepreflight.openverbs.com
from $0.006
1 endpoint
1
1 payers
P
PickleCheckOther services
PickleCheck endpoint check: is it safe to pay this x402 endpoint? (looks, never pays; unreachable/bad input are not charged)
Base Sepoliapicklecheck-test.onrender.com
from $0.005
1 endpoint
1
1 payers
P
pharos-payments-staging.small-paper-02ac.workers.devOther services
One English offset-printing review reference: job records, material questions, registration and sample checks, process limits and provenance. Fixed editorial snapshot; no inspection or production authorization.
Base Sepoliapharos-payments-staging.small-paper-02ac.workers.dev
from $0.01
1 endpoint
1
1 payers
M
mr-river9.makar52nn2016.workers.devOther services
Money Reactor paid API - catalog: https://mr-river9.makar52nn2016.workers.dev/.well-known/x402.json
Basemr-river9.makar52nn2016.workers.dev
from $0.001
4 endpoints
1
1 payers
M
mr-river8.makar52nn2016.workers.devOther services
Money Reactor paid API - catalog: https://mr-river8.makar52nn2016.workers.dev/.well-known/x402.json
Basemr-river8.makar52nn2016.workers.dev
from $0.001
4 endpoints
1
1 payers
M
mr-river7.makar52nn2016.workers.devOther services
Money Reactor paid API - catalog: https://mr-river7.makar52nn2016.workers.dev/.well-known/x402.json
Basemr-river7.makar52nn2016.workers.dev
from $0.001
4 endpoints
1
1 payers
M
mr-river6.makar52nn2016.workers.devOther services
Money Reactor paid API - catalog: https://mr-river6.makar52nn2016.workers.dev/.well-known/x402.json
Basemr-river6.makar52nn2016.workers.dev
from $0.001
4 endpoints
1
1 payers
M
mr-river5.makar52nn2016.workers.devOther services
Money Reactor paid API - catalog: https://mr-river5.makar52nn2016.workers.dev/.well-known/x402.json
Basemr-river5.makar52nn2016.workers.dev
from $0.001
4 endpoints
1
1 payers
M
mr-river4.makar52nn2016.workers.devOther services
Money Reactor paid API - catalog: https://mr-river4.makar52nn2016.workers.dev/.well-known/x402.json
Basemr-river4.makar52nn2016.workers.dev
from $0.001
4 endpoints
1
1 payers
M
mr-river3.makar52nn2016.workers.devOther services
Money Reactor paid API - catalog: https://mr-river3.makar52nn2016.workers.dev/.well-known/x402.json
Basemr-river3.makar52nn2016.workers.dev
from $0.001
4 endpoints
1
1 payers
M
mr-river2.makar52nn2016.workers.devOther services
Money Reactor paid API - catalog: https://mr-river2.makar52nn2016.workers.dev/.well-known/x402.json
Basemr-river2.makar52nn2016.workers.dev
from $0.001
4 endpoints
1
1 payers
M
mr-river10.makar52nn2016.workers.devOther services
Money Reactor paid API - catalog: https://mr-river10.makar52nn2016.workers.dev/.well-known/x402.json
Basemr-river10.makar52nn2016.workers.dev
from $0.001
4 endpoints
1
1 payers
M
memory.fluidrack.comOther services
Create namespace
Basememory.fluidrack.com
from $0.01
1 endpoint
1
1 payers
L
Locus x402 ServicesOther services
Locus public pay-per-use API
Basejudge0.x402.paywithlocus.com
from $0.005
1 endpoint
1
1 payers
H
http-security-headers-grade.x402supply.comOther services
Fetches a public http(s) URL (GET, up to 5 redirects, 10s timeout, body never read) and grades its security headers A+ to F. Returns score, present and missing headers, per-header findings with copy-paste fix values, and cookie flag issues.
Basehttp-security-headers-grade.x402supply.com
from $0.01
1 endpoint
1
1 payers
L
Locus x402 ServicesOther services
Locus public pay-per-use API
Basegrok.x402.paywithlocus.com
from $0.001
1 endpoint
1
1 payers

Service data comes from the Coinbase CDP and PayAI discovery lists and refreshes every few hours. Usage is paid calls over the last 30 days. APIs launched here are verified by us; the rest are paid directly to their owners.