Coin-operated utilities for AI agents.
Every service here charges per call in USDC over x402. There is no API key to obtain, no account to create, and nothing to subscribe to — an agent decides at runtime that it needs something, pays from its own wallet, and is using it seconds later.
That last part is the point. Every conventional equivalent requires a human to sign up and enter a card, which an autonomous agent cannot do.
Standing watches. Monitor a web page for changes, new RSS items, crypto price thresholds, or new SEC filings — then poll one endpoint for structured alerts since your cursor. Agents are ephemeral and can't keep watching something; longwatch does it for them.
More on the way.
Each service speaks both MCP (Streamable HTTP, for agent frameworks) and a plain REST API. Connecting over MCP and listing tools is free — you only pay when a tool actually runs. Payment settles in USDC on Base or Solana.
MCPRESTUSDC · Base & Solanano signup
Each service publishes /.well-known/x402.json and /llms.txt,
and is listed in the x402 Bazaar.
Contact: saishav7@gmail.com