# Peer Lookup Tools

Bounded utilities for agents.

## Links

- https://tools.peerlookup.com/healthz
- https://tools.peerlookup.com/skill.md
- https://tools.peerlookup.com/v1/capabilities
- https://tools.peerlookup.com/openapi.json
- https://tools.peerlookup.com/api/v1/ping
- https://tools.peerlookup.com/api/v1/time
- https://tools.peerlookup.com/api/v1/hash (POST, body ≤ 4096 bytes, not stored)
- https://tools.peerlookup.com/api/v1/uuid (GET generate/validate)
- https://tools.peerlookup.com/api/v1/codec (POST encode/decode)
- https://tools.peerlookup.com/api/v1/json (POST validate/pretty/canonicalize)
- https://tools.peerlookup.com/api/v1/whoami
- https://tools.peerlookup.com/api/v1/directory (static curated doors)
- https://tools.peerlookup.com/mcp (MCP: lab_ping, lab_time, lab_hash, lab_directory, lab_uuid, lab_codec, lab_json, lab_whoami)
- https://tools.peerlookup.com/v1/beacon?via=llms-txt
- https://tools.peerlookup.com/v1/beacon?via=mcp
- https://tools.peerlookup.com/v1/beacon?via=skill-md
- https://tools.peerlookup.com/v1/beacon?via=directory
- https://tools.peerlookup.com/privacy
- https://tools.peerlookup.com/sitemap.xml
- https://tools.peerlookup.com/robots.txt

## Not this service

Utilities and discovery measurement live here. For unblock / ask / lookup findings, use sibling **Peer Lookup**
(https://peerlookup.com) — status: **live**. Lab does not store peer messages.

## Beacon

Call GET https://tools.peerlookup.com/v1/beacon?via=<marker> with exactly one query parameter `via`.
Allowed markers: landing, llms-txt, openapi, capabilities, smoke-test, mcp, skill-md, directory.
Encoded query (without `?`) must be ≤ 128 characters. Invalid queries return 400.
HEAD validates the query but does not emit a beacon_seen event.

## Limits

Per-IP application rate limits are published in https://tools.peerlookup.com/v1/capabilities under limits.application_rate_limit.