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: 102K
Paid calls · 30 days: 885K
Launched here: 0

All projects

2,935 results

Most used Rising Most payers Newest Cheapest A–Z

S
santyvv-dataCrypto & DeFi
Consensus USD spot price for up to 5 crypto tickers (BTC, ETH, SOL, XRP, ADA, DOGE, AVAX, LINK, DOT, LTC, BCH, UNI, ATOM, NEAR, APT, ARB, OP, SUI, TON, POL). Queries four independent venues (MEXC, OKX, Coinbase and Kraken), returns the median plus min, max and a divergence flag, so a single venue printing a bad price cannot fool the caller. Call it when you need one trustworthy number instead of f
Basex402.santyvv.com
from $0.01
39 endpoints
0
calls / 30d
X
x402.quicknode.comOther services
No description yet.
Polygonx402.quicknode.com
from $0.001
1 endpoint
0
calls / 30d
X
x402.plutonus.techOther services
Safely follow bounded public HTTP redirects and compare the final URL with the expected target; return a deterministic verdict and reason code.
Basex402.plutonus.tech
from $0.003
1 endpoint
0
calls / 30d
X
x402.ph1976.nlOther services
BlorpAg: $0.01 per request
Basex402.ph1976.nl
from $0.01
2 endpoints
0
calls / 30d
X
x402.payai.networkOther services
No description yet.
BasePolygonX Layer+1x402.payai.network
from $0.01
4 endpoints
0
calls / 30d
X
x402.onchainexpat.comCrypto & DeFi
Get Wikipedia article summary
Basex402.onchainexpat.com
from $0.01
43 endpoints
0
calls / 30d
X
x402.nichospt.netOther services
No description yet.
Polygonx402.nichospt.net
from $0.0005
8 endpoints
0
calls / 30d
X
x402.minara.aiCrypto & DeFi
Ask Minara AI - Intelligent crypto assistant
Basex402.minara.ai
from $0.001
7 endpoints
0
calls / 30d
X
x402.lucyos.aiCrypto & DeFi
Payment for token analysis service ($0.01)
Basex402.lucyos.ai
from $0.01
1 endpoint
0
calls / 30d
X
x402.ggez.my.idData & research
Live STX and BTC market intelligence, pay per call in USDC on Base.
Basex402.ggez.my.id
from $0.01
1 endpoint
0
calls / 30d
X
x402.findclout.comSocial & people
Universal social post stats for $0.01. Pass any public post URL from instagram.com, tiktok.com, twitter.com, or x.com as ?url= and get back live views, likes, comments, shares, and the author username (plus author followers for TikTok and X) as JSON. The platform is auto-detected from the URL hostname. Great default endpoint for agents that just have a link.
Basex402.findclout.com
from $0.01
1 endpoint
0
calls / 30d
X
x402.disputetracker.xyzOther services
No description yet.
Solanax402.disputetracker.xyz
from $0.001
5 endpoints
0
calls / 30d
x402.cloudless.shDeveloper tools
x402 market report (PDF) — paid per download
Basex402.cloudless.sh
from $0.001
2 endpoints
0
calls / 30d
L
LAXIS Machine-Native EvidenceOther services
Settlement-backed machine evidence for autonomous agents. Returns a signed-payment transaction reference and machine-readable proof after exact USDC settlement.
Basex402.burnesatelier.com
from $0.005
1 endpoint
0
calls / 30d
X
x402.aurelianflo.comOther services
No description yet.
Basex402.aurelianflo.com
from $0.001
178 endpoints
0
calls / 30d
X
x402.asundial.comData & research
What the Wayback Machine kept of an address: first and last successful capture (HTTP 200) with dates and archive URLs, and the span between them, from the CDX index. Query: ?url=example.com/page
Basex402.asundial.com
from $0.01
2 endpoints
0
calls / 30d
X
x402.asrai.meOther services
No description yet.
Basex402.asrai.me
from $0.001
318 endpoints
0
calls / 30d
X
x402.api.agentmail.toOther services
Service: AgentMail API (https://api.paysponge.com/v0/lists/send/block)
SolanaBasex402.api.agentmail.to
from Free
6 endpoints
0
calls / 30d
0
0xBsAI & agents
0xBs public x402 demo — USDC on Base for agent-payable ESP32 hardware.
Basex402.0xbs.org
from $0.01
1 endpoint
0
calls / 30d
X
x402-zoo.lolagent.workers.devOther services
Parse and validate tabletop dice expressions such as d20, 2d6 and 3d8+2 without rolling.
Basex402-zoo.lolagent.workers.dev
from $0.0001
49 endpoints
0
calls / 30d
ZadenWorks ReadSearch & web
Extract every HTML table on a page as structured JSON — headers, row arrays, and (when headers are unique) row objects keyed by header name. Saves hand-parsing pricing tables, spec sheets, and schedules out of raw HTML.
Basex402-zadenworks.zaden-gaming.workers.dev
from $0.01
8 endpoints
0
calls / 30d
X
x402-web-tools.onrender.comSocial & people
Check an email address or domain: MX records, mail provider (Google/Microsoft/Zoho), SPF, DMARC policy, disposable-domain flag and a 0-100 deliverability score. Validate leads before sending.
Basex402-web-tools.onrender.com
from $0.002
1 endpoint
0
calls / 30d
X
x402-web-tools.microtools-x402.workers.devSearch & web
Search scholarly papers (OpenAlex index of 250M+ works). Returns up to 25 results with title, authors, year, venue, DOI, citation count, open-access PDF link, abstract (reconstructed from OpenAlex's inverted index; may be null when the publisher withholds it) and OpenAlex id. Optional from_year / to_year / open_access_only filters. Data: OpenAlex (CC0, openalex.org) with Crossref REST (crossref.or
Basex402-web-tools.microtools-x402.workers.dev
from $0.005
1 endpoint
0
calls / 30d
P
Public Page MetadataData & research
Rank x402 Arena agents and niches by observed self-reported organic purchases while excluding house-funded activity.
Basex402-url-evidence.vercel.app
from $0.002
2 endpoints
0
calls / 30d
X
x402-toolboxCrypto & DeFi
Driving route between two coordinates via OSRM (OpenStreetMap): distance km, duration, road summary. Free public router, no key.
BaseSolanaX Layerx402-toolbox.shablony-pro.workers.dev
from $0.002
3 endpoints
0
calls / 30d
X
x402-test-seven.vercel.appOther services
No description yet.
Basex402-test-seven.vercel.app
from $0.01
1 endpoint
0
calls / 30d
X
x402-sushi.up.railway.appOther services
No description yet.
Basex402-sushi.up.railway.app
from $0.001
3 endpoints
0
calls / 30d
X
x402-sellerCrypto & DeFi
Batch rug/safety screen: up to 8 tokens in one call, per-token verdicts (unordered) + summary
Basex402-seller-m8nx.onrender.com
from $0.01
5 endpoints
0
calls / 30d
X
x402-secure-api.t54.aiSocial & people
Get comprehensive x402 server security assessment with overall score (0-100), risk level, sub-scores (API health, webpage, social, onchain), and scam indicators. Ideal for pre-transaction safety validation. Price: $0.01 USDC
BaseSolanax402-secure-api.t54.ai
from $0.001
9 endpoints
0
calls / 30d
X
x402-recommend.agentpageread.workers.devAI & agents
Which x402 API should my agent call? Describe the task in plain words (need=) and get up to 5 x402 APIs ranked by relevance plus CDP Bazaar-reported 30-day usage (unique payers, repeat ratio, last call; sellers paid via other facilitators may show 0; sweeper-like usage is flagged and not rewarded), each re-checked right now for a 402 payment challenge (unless probe=0), with price, network, payTo,
Basex402-recommend.agentpageread.workers.dev
from $0.002
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.