Paid APIs

x402-enabled endpoints callable with USDC on Base. Pay per request, no API keys, no accounts. Sourced from agentic.market + the Coinbase x402 facilitator discovery feed.

All (71) data (32) inference (9) search (7) infra (7) social (5) media (5) travel (2) storage (2) trading (1) other (1)
Sort: Cheapest Most expensive Top revenue (30d)

5 paid APIs · x402 settlement on Base

💰 Paid API Melis Notify social $0.0050/call
notify.melis.ai
Pay-per-email notification ($0.005/email)
💰 Paid API AgentMail social
api.agentmail.to
Send and receive email as an AI agent
💰 Paid API PostalForm social
postalform.com · PostalForm · wallet 0xa47c…f911
PostalForm helps AI agents create reviewable physical-mail drafts and, when explicitly authorized, pay for print-and-mail orders through MCP, hosted checkout, MPP, or x402.
💰 Paid API StableEmail social
stableemail.dev · MeritSystems
Send/receive email + custom domains + inboxes
💰 Paid API StablePhone social
stablephone.dev · MeritSystems
AI phone calls + dedicated numbers

How is this data sourced?

Each listing is cross-walked from agentic.market's curated catalog with the Coinbase Developer Platform x402 discovery feed (api.cdp.coinbase.com/platform/v2/x402/discovery/resources). Revenue figures are derived from eth_getLogs on USDC Transfer events to each operator's published payTo wallet on Base mainnet, fully reproducible from the public RPC. Refreshed every 6 hours for listings; revenue refresh runs daily.