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

X
x402-api.lastman.funOther services
No description yet.
Basex402-api.lastman.fun
from $0.01
1 endpoint
0
calls / 30d
X
x402-api-nine.vercel.appOther services
CSV Reconciliation Service
Basex402-api-nine.vercel.app
from $0.01
1 endpoint
0
calls / 30d
X
x402-aggregator.vercel.appOther services
No description yet.
Basex402-aggregator.vercel.app
from $0.001
1 endpoint
0
calls / 30d
X
x101.funOther services
No description yet.
Basex101.fun
from $0.001
2 endpoints
0
calls / 30d
W
Would Pay AgainOther services
Would Pay Again, Issue #3 — full content as JSON {title, web_url, html, markdown}.
Basewouldpayagain.com
from $0.001
10 endpoints
0
calls / 30d
W
wolframalpha.x402.paysponge.comOther services
Service: Wolfram Alpha (https://wolframalpha.x402.paysponge.com/v1/simple)
BaseSolanawolframalpha.x402.paysponge.com
from $0.01
3 endpoints
0
calls / 30d
W
witness.outbid.shOther services
Independent fact + signed receipt. $0.01 USDC.
Basewitness.outbid.sh
from $0.01
1 endpoint
0
calls / 30d
W
websearch--gw.swerver.netOther services
No description yet.
Basewebsearch--gw.swerver.net
from $0.01
3 endpoints
0
calls / 30d
W
webmaillookup.comOther services
Look up webmail provider information
Basewebmaillookup.com
from $0.005
1 endpoint
0
calls / 30d
D
DevrynoOther services
Name, symbol and decimals for an ERC-20 on Base. $0.002 USDC on Base.
Basevolkov.evgeny.m2.fvds.ru
from $0.001
6 endpoints
0
calls / 30d
V
vizor-api.vercel.appOther services
No description yet.
Solanavizor-api.vercel.app
from $0.01
2 endpoints
0
calls / 30d
402xAgent CheckOther services
x402 Endpoint Spot-Check: SSRF-safe probe of a public URL for an x402 PAYMENT-REQUIRED challenge. Never pays the target. $0.01 USDC on Base after 1 free check per UTC day.
Baseverified-catalog-lookup.withgrokbot.workers.dev
from $0.01
2 endpoints
0
calls / 30d
V
verdict.scriptmasterlabs.comOther services
SML Verdict Protocol decision receipt
Baseverdict.scriptmasterlabs.com
from $0.01
2 endpoints
0
calls / 30d
N
NAIF EU Web IntelligenceOther services
Fast European HTTP status and TLS preview
Basev2202609421025522662.hotsrv.de
from $0.001
1 endpoint
0
calls / 30d
V
v0-x402-endpoint-creation-o5.vercel.appOther services
Get a random inspirational quote
Basev0-x402-endpoint-creation-o5.vercel.app
from $0.01
1 endpoint
0
calls / 30d
U
usdc-receipt-verifier.soloearn.workers.devOther services
Verify that a Base mainnet transaction paid at least N USDC to an address (optionally from a given sender, with K confirmations). Returns matched transfer, block time and confirmations. Read-only.
Baseusdc-receipt-verifier.soloearn.workers.dev
from $0.005
1 endpoint
0
calls / 30d
U
underscoredone.comOther services
No description yet.
Baseunderscoredone.com
from $0.01
2 endpoints
0
calls / 30d
U
uncorrupting-undeviatingly-buford.ngrok-free.devOther services
No description yet.
Baseuncorrupting-undeviatingly-buford.ngrok-free.dev
from $0.001
1 endpoint
0
calls / 30d
T
twit-api-production-de12.up.railway.appOther services
No description yet.
Basetwit-api-production-de12.up.railway.app
from $0.005
5 endpoints
0
calls / 30d
T
ToolMint x402 Listing DoctorOther services
Lint any x402 endpoint the way buyer agents and Bazaar catalogs see it: unpaid probe, decoded 402, accepts/bazaar/well-known/openapi checks, scored fix list (GET /check?url=https://...)
Basetoolmint-x402-doctor.toolmint.workers.dev
from $0.01
1 endpoint
0
calls / 30d
T
toolmint-usgs-earthquakes-json.toolmint.workers.devOther services
Near-me 7-day summary around lat/lon
Basetoolmint-usgs-earthquakes-json.toolmint.workers.dev
from $0.01
2 endpoints
0
calls / 30d
T
toolmint-citation-verify.toolmint.workers.devOther services
Verify one citation (DOI, arXiv id, title+authors+year, or free-text reference): found?, canonical metadata, field-by-field mismatches, retraction flag. Not-found is a free 404 (v3.1.5).
Basetoolmint-citation-verify.toolmint.workers.dev
from $0.005
1 endpoint
0
calls / 30d
T
toolmint-cisa-kev-json.toolmint.workers.devOther services
Look up one CVE by path
Basetoolmint-cisa-kev-json.toolmint.workers.dev
from $0.01
2 endpoints
0
calls / 30d
T
toolbelt402.catalystdesk.workers.devOther services
URL → clean Markdown. Main article text, title, byline, word count.
Basetoolbelt402.catalystdesk.workers.dev
from $0.002
3 endpoints
0
calls / 30d
T
tiresapi.comOther services
No description yet.
Basetiresapi.com
from $0.001
1 endpoint
0
calls / 30d
T
three.wsOther services
No description yet.
Basethree.ws
from $0.001
1 endpoint
0
calls / 30d
T
terminal.themonexus.comOther services
Monexus Terminal API — One thread with its items: /api/v1/thread/{id}.
Solanaterminal.themonexus.com
from $0.001
26 endpoints
0
calls / 30d
T
temporary-instant-tempest-4a1g1wu.vercel.appOther services
Generate a stable, secret-free fingerprint from a build or test failure so agents can group duplicate CI errors across changing line numbers, timestamps, paths, identifiers, and retry attempts.
Basetemporary-instant-tempest-4a1g1wu.vercel.app
from $0.001
1 endpoint
0
calls / 30d
T
TaskMaster AuditOther services
Audit a public HTTPS x402 API without payment: HTTP 402 challenge metadata, Bazaar and well-known discovery, OpenAPI 3.1 operation schemas and payment declarations, redirects, latency, and security headers.
Basetaskmaster-x402.vercel.app
from $0.01
1 endpoint
0
calls / 30d
S
SwishrJobsOther services
SwishrJobs csv-preflight
Baseswishrjobs.com
from $0.01
1 endpoint
0
calls / 30d

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.