io.github.ManyContacts/whatsapp-mcp
ManyContacts - WhatsApp Business MCP
WhatsApp Business MCP: send messages, manage contacts, campaigns, and AI agents.
alive probed 2026-10-14
55tools
9.3ktokens in Claude Opus 5.5
10ktokens in Claude Code
4.6 %of a 200k context window
5.0ko200k_base estimate
314 msto initialize
19 msto list tools
- Run it
- npx -y @manycontacts/mcp@1.1.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- manycontacts 1.1.0
- Capabilities
- prompts, tools
- Instructions
- 473 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-14. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/manycontacts/mcp
- Registry
- active, updated 2026-04-15 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| manycontacts.contacts.list | 289 | 6 % |
| manycontacts.org.update | 239 | 5 % |
| manycontacts.campaigns.create | 183 | 4 % |
| manycontacts.ai_agents.update | 144 | 3 % |
| manycontacts.contacts.bulk | 143 | 3 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.ManyContacts/whatsapp-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.