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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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- Paid calls · 30 days
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Developer tools
225 results- Ddns-lookup.x402.paysponge.comDeveloper tools
Service: DNS Record & Whois Lookup (https://dns-lookup.x402.paysponge.com/)
Basedns-lookup.x402.paysponge.comfrom $0.011 endpoint - DDiffDeckDeveloper tools
Live hosting/VPS provider comparison data (price, type, best-for, cheapest) as JSON for autonomous agents. GET, optional ?cheapest=managed|unmanaged.
Basediffdeck-api.vercel.appfrom $0.051 endpoint - Ddeal-radar-x402Developer tools
Public-company 8-K filings filtered by item code or event type (M&A, executive change, financing, bankruptcy, or the default deal items). Each row has the item codes, a plain-English event type, a one-line summary from the filing, company, website and domain when EDGAR has one, state, SIC industry, parsed dollar amount when the text states one, and the sec.gov filing link. Missing values are null.
Basedeal-radar.falcon-sol.workers.devfrom $0.012 endpoints - Aair-quality-milanDeveloper tools
7-day weather forecast for Sudbury: daily highs and lows, precipitation probability and totals, wind and conditions, plus hourly detail for today, from Open-Meteo. Trip planning and scheduling for Sudbury without an API key. $0.01 per call.
Basedata.intel.rallylive.cafrom $0.0132 endpoints - CCSV to XLSXDeveloper tools
Convert messy CSV/TSV to a clean styled XLSX plus a checks report (base64)
Basecsv-to-xlsx-x402.onrender.comfrom $0.021 endpoint - Ccontactcampaigns.comDeveloper tools
Managed CAN-SPAM & RFC 8058 One-Click Unsubscribe compliant 3-touch outbound sequence relay with diagnostic preview links and Ed25519 dispatch receipts ($0.50 USDC per 10 prospects).
Basecontactcampaigns.comfrom $0.501 endpoint - Open Data ProxyDeveloper tools
Use GET /iban?value=… to check checksum validity and retrieve bank name, country and BIC.
Basecbs.thesoulnetwork.eufrom $0.016 endpoints - Bburn-once-secret-vault.jannioura.workers.devDeveloper tools
Store a secret (API key, webhook payload, signed URL) encrypted with WebCrypto AES-256-GCM and share a claim URL that yields the secret exactly once. A Durable Object serializes reads so single-use delivery is race-free, and every burn returns an Ed25519-signed attestation. Creating a vault requires x402 payment; the recipient's claim read (GET /v/:vault_id) is free.
Baseburn-once-secret-vault.jannioura.workers.devfrom $0.011 endpoint - Bbuilt-with-productos-voo8.vercel.appDeveloper tools
Current EVM block number with multi-RPC failover.
Basebuilt-with-productos-voo8.vercel.appfrom $0.0011 endpoint - Aassetfactory-jobs-x402.sigrunner.workers.devDeveloper tools
Jobs read live from each company's own board at request time — every role is authoritatively OPEN NOW, not a stale resold-database snapshot. Each row carries structured depth: parsed geography (location_parsed), canonical employment_type, mapped seniority, extracted requirements (skills / min-years / education) and a ghost_candidate flag for likely evergreen/unfilled listings. Company-domain auto-
Baseassetfactory-jobs-x402.sigrunner.workers.devfrom $0.0027 endpoints - PPaidPilot Invoice APIDeveloper tools
Generate an invoice PDF from JSON. $0.02 USDC on Base per call. Computes line items, tax, discount and totals server-side; 12 currencies; multi-page. Validate free first at POST /v1/invoice/validate. Don't use this for sending the invoice; it only returns the PDF.
Baseapi.paidpilot.iofrom $0.016 endpoints - IInboxGuards Email TestDeveloper tools
Get the exact SPF, DKIM and DMARC DNS records to publish for a domain. $1 USDC on Base per call. Reads live MX, NS, SPF, DKIM and DMARC, detects the mail provider and DNS host, and returns records in order (create, replace or keep) with one merged SPF and a staged DMARC policy. Don't use this for testing a real sent message; use /v1/report.
Baseapi.inboxguardstest.comfrom $0.0053 endpoints - Aapi-salesDeveloper tools
Pre-payment trust check of a paid API endpoint: reachability, 402 handshake, registrable-domain age (RDAP), TLS days left, seller USDC balance and ETH gas runway on Base -> trust_score 0-100 + verdict pay|caution|avoid
Base49110-a2faebhnaj4vebqe.splox.appfrom $0.0021 endpoint - FFastX402Developer tools
Domain availability and registration info (registrar, created, expires, status, nameservers) via RDAP
Base402-tools.tusk80.comfrom $0.0018 endpoints - 33c18b2d704b6940881478ee13baabb5a-dev.ctonew.appDeveloper tools
email verification
Base3c18b2d704b6940881478ee13baabb5a-dev.ctonew.appfrom $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.