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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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3,044 results- Sscriptdocs-mcp.onrender.comAI & agents
ScriptDocs paid MCP tool call (docs_check_vulnerabilities, docs_get_readme): $0.009 USDC per call via x402 v2 exact on Base.
Basescriptdocs-mcp.onrender.comfrom $0.0091 endpoint - Sscrapemole-api-mainnet.scrapemole.workers.devSearch & web
Use when you need how search interest in a topic changes over time or by region, or which related queries are rising. Returns weekly/daily interest (0-100), per-region interest and top/rising related queries from Google Trends. $0.01 per successful call; errors are not charged.
Basescrapemole-api-mainnet.scrapemole.workers.devfrom $0.0027 endpoints - Sscout-packs-production.up.railway.appDeveloper tools
Email provider identification — mailbox host (Google Workspace, Microsoft 365, Zoho, Proton, etc.) plus gateway detection (Mimecast, Proofpoint, Barracuda) from MX records via DNS-over-HTTPS. One domain per call. Tiger Operations. Use when segmenting prospects by email stack and you need to identify a domain's mailbox provider and security gateway.
Basescout-packs-production.up.railway.appfrom $0.014 endpoints - SScorpTech ReconCrypto & DeFi
Live gas tracker across Ethereum, Base, Arbitrum, OP Mainnet, Polygon and BNB Chain: head block age, base fee, 10th/50th/90th percentile priority fees from eth_feeHistory, suggested maxFeePerGas tiers, and estimated cost of a native transfer and an ERC-20 transfer. Read-only.
Solanascorptech.it.comfrom $0.0051 endpoint - SScorpTech UtilsMarkets & finance
Official ECB euro reference FX rates (~30 currencies, daily) rebased to any supported base currency.
Solanascorptech-utils.agent.deno.netfrom $0.0011 endpoint - SScorpTech ReconDeveloper tools
All common DNS records for a domain via Cloudflare DNS-over-HTTPS: A, AAAA, NS, MX, TXT, CAA.
Solanascorptech-recon.agent.deno.netfrom $0.0011 endpoint - SScanPayCrypto & DeFi
Single crypto price: send one ticker symbol (BTC, ETH, SOL) and get the current USD price from the existing market data pipeline
BaseSolanascanpay-edge.alextaghiashvili.workers.devfrom $0.000158 endpoints - Ssantyvv-dataCrypto & DeFi
Consensus spot price across three exchanges
Basesantyvv-x402.santyvv1993.workers.devfrom $0.0140 endpoints - Ssafeconduct.vercel.appSearch & web
Fetches web pages that return 403 Forbidden or HTTP 402 Payment Required. Handles Cloudflare bot protection and TollBit paywalls. Returns page content with receipt.
Solanasafeconduct.vercel.appfrom $0.0012 endpoints - Rrx7-x402.vercel.appOther services
Deterministic HTTP status, redirects, latency and selected response headers for a public URL.
Baserx7-x402.vercel.appfrom $0.0051 endpoint - Rrumourx402-api.vercel.appOther services
No description yet.
Baserumourx402-api.vercel.appfrom $0.0011 endpoint - 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
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.