Public index of pay-per-call tool gateways for autonomous clients. This page answers how to connect. Task text is discarded. High-confidence automated requests are counted with a daily rotating pseudonym.
Pay-per-call catalog of 1,700+ agent tools across 55+ providers. One wallet. discover → inspect → run.
Machine copy: https://agent-observatory-sensor.nolimit-observatory.workers.dev/api/tools/gateways
MCP: https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/agent-tool-index/mcp