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

933 results

Most used Rising Most payers Newest Cheapest A–Z

R
rmassistanthub.ioOther services
Pulse Deep-Dive Analysis
Basermassistanthub.io
from $0.30
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
receipt-lens-8af7.beatrise-jansevska.chatgpt.siteOther services
Base native-USDC receipt evidence: recipient/amount verdict, transfers, confirmations, separate fees, provenance and limitations. Integer quantities are exact decimal strings.
Basereceipt-lens-8af7.beatrise-jansevska.chatgpt.site
from $0.05
1 endpoint
0
calls / 30d
R
recallguard-api.vercel.appOther services
RecallGuard inventory matcher: match up to 100 items against US recalls, $0.10 per call
Baserecallguard-api.vercel.app
from $0.10
1 endpoint
0
calls / 30d
RealEstatePulseOther services
US real estate and mortgage — 30yr/15yr fixed rates, ARM, housing starts, permits, Case-Shiller HPI
Baserealestate.lonestaroracle.xyz
from $0.03
1 endpoint
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
PortfolioRiskOther services
Portfolio risk analysis — concentration volatility correlation across holdings
Baseportfolio.lonestaroracle.xyz
from $0.10
1 endpoint
0
calls / 30d
P
pons.meshgateway.coOther services
No description yet.
Basepons.meshgateway.co
from $0.03
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
P
penny-tech.vercel.appOther services
No description yet.
Basepenny-tech.vercel.app
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.