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Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
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2,935 results- Rrugshield-402.onrender.comCrypto & DeFi
Tracks institutional and high-win-rate whale wallet net inflows and outflows across Solana SPL and Base ERC-20 tokens.
BaseSolanarugshield-402.onrender.comfrom $0.0112 endpoints - Xx402 Web ProbeCrypto & DeFi
Website uptime/latency/TLS check of a public URL, measured from a server in US Central (St. Louis). Returns status, DNS/TTFB/total ms, redirect chain, cert expiry.
Baserockndefi.xyzfrom $0.0014 endpoints - Rrobinhoodradar.comCrypto & DeFi
Robinhood Radar live reranked board: creator ratings and token ATH/price table.
Baserobinhoodradar.comfrom $0.018 endpoints - Rrobinhood-radar-nu4yz7wqv-lightfarm.vercel.appCrypto & DeFi
Robinhood Radar on-chain new-pool feed (every new Robinhood-chain launch).
Baserobinhood-radar-nu4yz7wqv-lightfarm.vercel.appfrom $0.0051 endpoint - Rrobinhood-radar-dsk86hfkw-lightfarm.vercel.appCrypto & DeFi
Robinhood Radar live reranked board: creator ratings and token ATH/price table.
Baserobinhood-radar-dsk86hfkw-lightfarm.vercel.appfrom $0.011 endpoint - Rrisk-api.riskengine.workers.devOther services
Sanctions screening — OFAC, EU, UK lists
Baserisk-api.riskengine.workers.devfrom $0.011 endpoint - RRiddle OracleOther services
Pay a micro-fee in USDC on Base mainnet to receive a riddle and its answer.
Baseriddlex402.vercel.appfrom $0.0021 endpoint - Rreusefulshop.comOther services
Used item price estimate: low, typical and high with confidence
Basereusefulshop.comfrom $0.011 endpoint - Rresolve402-kinze.vercel.appOther services
No description yet.
Baseresolve402-kinze.vercel.appfrom $0.0033 endpoints - DDevX Repo Run CheckCrypto & DeFi
Before an AI coding agent (or you) runs a GitHub repo's install steps: scans README, package.json install scripts, install.sh/setup.py, .vscode/tasks.json and Makefile for download-and-execute one-liners (iwr|iex, curl|sh), obfuscated or base64 payloads, known malware domains, typosquatted crypto dependencies, agent-targeted prompt injection and password-protected archives, plus GitHub signals of
Baserepo-run-check.nextill-pos.workers.devfrom $0.0051 endpoint - Rrentcheck.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.comfrom $0.011 endpoint - Rrentcast.x402.paysponge.comOther services
Service: RentCast (https://rentcast.x402.paysponge.com/properties/test)
SolanaBaserentcast.x402.paysponge.comfrom $0.018 endpoints - Rrelayzero.aiAI & agents
Binary agent trust verification
Solanarelayzero.aifrom $0.0012 endpoints - Rrelaynetwork.aiAI & agents
No description yet.
Solanarelaynetwork.aifrom $0.0014 endpoints - DDNS lookupCrypto & DeFi
prompt-injection risk scan: detects instruction override, tool abuse and secret exfiltration phrases before an agent consumes untrusted text.
Baserelay402.georgespring.workers.devfrom $0.00130 endpoints - TSN RelayOther services
POST /channel creates a live room with an optional lifetime (default 5 minutes).
Baserelay.thesoulnetwork.eufrom $0.016 endpoints - Rregradar.themonexus.comData & research
RegRadar — Regulatory impact coding for one bill/regulation URL or text. Params: bill_url= (http/https) or text=. Deterministic keyword-based taxonomy output: jurisdiction, affected_entities, obligations, deadlines, penalties, risk_score, per_industry_flags, citations. NOT legal advice.
Solanaregradar.themonexus.comfrom $0.0022 endpoints - Rregistry.frames.agCrypto & DeFi
Get token prices in any fiat/crypto currency
Baseregistry.frames.agfrom $0.0021 endpoint
RedRobotRouges IAAI & agentsOpenAI-compatible chat completions (local GPU, Quebec/CA)
Baseredrobotrouges.cafrom $0.0011 endpoint- Rreader.scrapemole.workers.devImages, audio & video
Use when you need to read one public web page: fetches the URL live and returns its main readable content as clean Markdown (or plain text), with navigation, ads, cookie banners and boilerplate removed, plus title, byline, publish date, language and word count. Respects robots.txt. Server-rendered HTML only (no JavaScript execution).
Basereader.scrapemole.workers.devfrom $0.0015 endpoints - ReadEdgeSearch & web
Clean web content extraction — any URL to markdown + text + metadata
Baseread.lonestaroracle.xyzfrom $0.0051 endpoint - Rratchetx.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.xyzfrom $0.011 endpoint - Rragradar.spaceOther services
No description yet.
Baseragradar.spacefrom $0.00135 endpoints - Rraging-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.appfrom $0.0021 endpoint - Rragdar.vercel.appOther services
No description yet.
Baseragdar.vercel.appfrom $0.0017 endpoints - Rrag-dietCrypto & DeFi
AgentDiet Semantic Distillation (/v1/distill) — Strips 85-97% of HTML token bloat (https://rag-diet.agentdiet.dev/v1/distill)
Baserag-diet.agentdiet.devfrom Free1 endpoint - Qquotes.scrapemole.workers.devMarkets & finance
Use when an agent needs the latest market price of a listed instrument: AAPL, MSFT, NVDA, SPY, ^GSPC (S&P 500), ^IXIC, EURUSD=X, GC=F (gold futures), BTC-USD, 7203.T (Tokyo), VOW3.DE (Xetra). Returns price, previous close, absolute and percent change, day high/low, volume, 52-week high/low, exchange, currency, instrument type, market time and a Yahoo Finance link. Use /v1/search first if you only
Basequotes.scrapemole.workers.devfrom $0.0016 endpoints - Qquicknode.comOther services
No description yet.
Basequicknode.comfrom $0.012 endpoints - QtyCrypto & DeFi
Canonical audit JSON plus sha256 of a previous Qty result. Includes input, definition ids, formulas, and a timestamp. The hash ignores the timestamp so the same payload always hashes the same. No chain write. Exact USDC $0.001 on eip155:8453 and solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp.
BaseSolanaqty.vercel.appfrom $0.0011 endpoint
QRCode.Pub tools for agentsSearch & webFetch a public web page and return its title, description, clean Markdown (scripts, styles, nav chrome removed) and the list of links. No model call, deterministic.
Baseqrcode.pubfrom $0.011 endpoint
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.