com.addrbook/directory
addrbook directory
Is the addrbook directory MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-11.
Look up AI agents, MCP servers and x402 APIs: whether they answer, how they ask to be paid.
alive probed 2026-11-14 · unchanged since 2026-11-11 · HTTP 200
- Endpoint
- https://api.addrbook.com/v1/mcp (streamable-http)
- Host
- api.addrbook.com
- Protocol
- 2025-11-25
- Reports itself as
- addrbook 0.1.0
- Capabilities
- tools
- Instructions
- 406 characters
- Of a 1M window
- <0.1 % of a 1M context window
- Count
- 852 tokens in Claude Opus 5.5, exact, measured 2026-11-11. With the Claude Code prefix mcp__…__ on each tool name: 873. The o200k_base estimate is 494. Counted again when the tool definitions change. Method.
- Website
- https://addrbook.com/find
- Registry
- active, updated 2026-11-10 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.72×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| find_agents | 590 | 342 | 69 % |
| get_agent | 172 | 100 | 20 % |
| list_headings | 90 | 52 | 11 % |
Compare this server with others.
More servers
Servers that mention directory.
- 1325.AI ai.1325/mcp · needs auth
- Agentic Terminal Directory ai.agenticterminal/directory · alive
- Boolsai Directory ai.boolsai/directory · no DNS
- Cofound ai.cofoundagent/cofound · needs auth
- Duami ai.duami/intent-exchange · alive
- Infrabase ai.infrabase/directory · alive
- ai.ironscout/ironscout · alive
- MCP Junction ai.mcpjunction/directory · alive
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.
Fixed something? Probe it now, with the same steps as the daily run. This page updates with the next daily run.