io.github.riv-lc/areacode-mcp
AreaCode.fyi MCP Server
North American (NANP) area-code & phone-number intelligence for AI agents, by areacode.fyi.
alive probed 2026-10-14
8tools
1.6ktokens in Claude Opus 5.5
1.7ktokens in Claude Code
0.8 %of a 200k context window
945o200k_base estimate
328 msto initialize
12 msto list tools
- Run it
- npx -y @riv-lc/areacode-mcp@0.2.2 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- areacode-mcp 0.1.0
- Capabilities
- tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-14. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/riv-lc/areacode-mcp
- Website
- https://areacode.fyi/mcp
- Registry
- active, updated 2026-06-22 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| lookup_carrier | 142 | 15 % |
| lookup_phone_number | 140 | 15 % |
| check_number_reputation | 130 | 14 % |
| lookup_area_code | 124 | 13 % |
| area_codes_for_city | 118 | 12 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.riv-lc/areacode-mcp)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.