# MCP Pulse

> MCP Pulse is a free health, conformance and latency scanner for remote Model Context Protocol (MCP) servers. Paste a streamable-HTTP MCP endpoint and get a 0-100 score in 10 seconds: real JSON-RPC initialize handshake, protocol version, serverInfo identity, capabilities, tools/list with description quality, latency, HTTPS and auth posture — plus concrete fixes.

## Key pages
- [Home & scanner](/): run a free scan
- [Public MCP Server Index](/mcp-index): weekly health/conformance ranking of popular public MCP servers ([raw JSON](/data/mcp-index.json))
- [The State of Public MCP Servers](/mcp-ecosystem-report): weekly data report — most servers require auth, public ones cluster at the same score, latency varies ~40x
- [What we check](/#how): conformance, tool quality, transport & security
- [README badge](/#badge): embeddable live score badge for your server
- [Pro monitoring](/#pro): $19/mo founding price — uptime, latency and schema-drift alerts

## Guides
- [How to test an MCP server](/how-to-test-mcp-server): the full protocol-lifecycle test with curl and a scanner
- [Why your MCP tools aren't being called](/why-mcp-tools-not-called): tool metadata (descriptions, input schemas) is why agents skip your tools
- [MCP server conformance checklist](/mcp-server-checklist): 10 ordered checks agents rely on
- [MCP server monitoring](/mcp-server-monitoring): uptime, latency and schema-drift alerts
- [Public MCP server examples](/mcp-server-examples): real remote servers you can try, with live scores
- [MCP transports explained](/mcp-transports-explained): streamable HTTP vs SSE vs stdio

## API
- `GET /api/scan?url=<mcp endpoint>` returns a JSON report: { url, score, grade, latencyMs, tools, checks[], summary }. Please self-limit to a few requests per minute.
- `GET /api/badge?url=<mcp endpoint>` returns an SVG score badge for embedding in READMEs.

## Audience
MCP server developers, agent platform builders, and teams monetizing MCP servers who need uptime and conformance monitoring.

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