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

S
strategy-sim.vercel.appOther services
No description yet.
Basestrategy-sim.vercel.app
from $0.01
1 endpoint
0
calls / 30d
S
Spark Invocation AssuranceOther services
Validate an intended paid API request against its declared contract before spending. Returns VALID, INVALID, or UNKNOWN with machine-readable reasons. Target URL is never called.
Basespark-api-preflight.replit.app
from $0.001
1 endpoint
0
calls / 30d
S
solara-x402.onrender.comOther services
Cheap Solara tip for agents — small paid sanity check / discovery plumbing.
Basesolara-x402.onrender.com
from $0.01
1 endpoint
0
calls / 30d
S
server.r1xlabs.comOther services
No description yet.
Baseserver.r1xlabs.com
from $0.01
4 endpoints
0
calls / 30d
S
semilla1-txcheck.semilla1lab.deno.netOther services
Resumen de una transacción de Base: estado, gas, transferencias USDC
Basesemilla1-txcheck.semilla1lab.deno.net
from $0.01
1 endpoint
0
calls / 30d
R
rx7-x402.vercel.appOther services
Deterministic HTTP status, redirects, latency and selected response headers for a public URL.
Baserx7-x402.vercel.app
from $0.005
1 endpoint
0
calls / 30d
R
rumourx402-api.vercel.appOther services
No description yet.
Baserumourx402-api.vercel.app
from $0.001
1 endpoint
0
calls / 30d
R
risk-api.riskengine.workers.devOther services
Sanctions screening — OFAC, EU, UK lists
Baserisk-api.riskengine.workers.dev
from $0.01
1 endpoint
0
calls / 30d
R
Riddle OracleOther services
Pay a micro-fee in USDC on Base mainnet to receive a riddle and its answer.
Baseriddlex402.vercel.app
from $0.002
1 endpoint
0
calls / 30d
R
reusefulshop.comOther services
Used item price estimate: low, typical and high with confidence
Basereusefulshop.com
from $0.01
1 endpoint
0
calls / 30d
R
resolve402-kinze.vercel.appOther services
No description yet.
Baseresolve402-kinze.vercel.app
from $0.003
3 endpoints
0
calls / 30d
R
rentcheck.themonexus.comOther services
RentCheck — Fair-rent band + levy/utilities benchmark + fraud flags for one address/suburb. Params: address= (optional) and suburb= (required). Deterministic output from the honest seed benchmark DB.
Solanarentcheck.themonexus.com
from $0.01
1 endpoint
0
calls / 30d
R
rentcast.x402.paysponge.comOther services
Service: RentCast (https://rentcast.x402.paysponge.com/properties/test)
SolanaBaserentcast.x402.paysponge.com
from $0.01
8 endpoints
0
calls / 30d
TSN RelayOther services
POST /channel creates a live room with an optional lifetime (default 5 minutes).
Baserelay.thesoulnetwork.eu
from $0.01
6 endpoints
0
calls / 30d
R
ratchetx.xyzOther services
Buy a single-use RatchetX ranked-arena entry claim. The full toll goes directly to the current daily champion; RatchetX takes 0%.
Solanaratchetx.xyz
from $0.01
1 endpoint
0
calls / 30d
R
ragradar.spaceOther services
No description yet.
Baseragradar.space
from $0.001
35 endpoints
0
calls / 30d
R
raging-engines-swarm.floot.appOther services
Base transaction preflight for agents: recent fee percentiles, congestion, block timing and base-fee ETH cost for a requested gas limit.
Baseraging-engines-swarm.floot.app
from $0.002
1 endpoint
0
calls / 30d
R
ragdar.vercel.appOther services
No description yet.
Baseragdar.vercel.app
from $0.001
7 endpoints
0
calls / 30d
Q
quicknode.comOther services
No description yet.
Basequicknode.com
from $0.01
2 endpoints
0
calls / 30d
Q
qr-code-generator.underscoredone.comOther services
No description yet.
Baseqr-code-generator.underscoredone.com
from $0.01
1 endpoint
0
calls / 30d
P
proxy.x402scan.comOther services
No description yet.
Baseproxy.x402scan.com
from $0.01
6 endpoints
0
calls / 30d
P
PriceCheckOther services
Extract the current price, original price, currency, discount and availability from a public ecommerce, product or software pricing page.
Basepricecheck-mainnet-production.up.railway.app
from $0.01
1 endpoint
0
calls / 30d
P
prediction-markets-production-3e07.up.railway.appOther services
No description yet.
Baseprediction-markets-production-3e07.up.railway.app
from $0.005
1 endpoint
0
calls / 30d
P
pplx.x402.paysponge.comOther services
No description yet.
Basepplx.x402.paysponge.com
from $0.01
1 endpoint
0
calls / 30d
P
pong-pay-production.up.railway.appOther services
No description yet.
Basepong-pay-production.up.railway.app
from $0.001
2 endpoints
0
calls / 30d
P
playground.llliiiii.workers.devOther services
No description yet.
Baseplayground.llliiiii.workers.dev
from $0.001
1 endpoint
0
calls / 30d
P
piprail.comOther services
PipRail live x402 demo: pay $0.01 USDC on Base to unlock.
Basepiprail.com
from $0.01
1 endpoint
0
calls / 30d
P
piggybank.loth2023ys.workers.devOther services
Builds a gas-optimized multi-recipient payout plan: either a list of native transfers or a single Multicall3 aggregate3 batch of ERC20 transfer() calls. Returns calldata only - this service never signs or broadcasts.
Basepiggybank.loth2023ys.workers.dev
from $0.004
2 endpoints
0
calls / 30d
P
pickr.marketOther services
No description yet.
Basepickr.market
from $0.01
1 endpoint
0
calls / 30d
P
Penny APIOther services
Decode a NIP-19 Nostr identifier (npub/note/nprofile/nevent/naddr) to hex, relays, author, kind. GET ?s=<bech32>
Basepennyagent.pythonanywhere.com
from $0.001
3 endpoints
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.