io.github.jevil25/whatsapp-messaging-api-mcp
WhatsApp Messaging API
Send WhatsApp messages from Claude. No Meta Business approval or WhatsApp Business account.
alive probed 2026-10-19
9tools
≈ 844tokens, estimate
≈ 0.4 %of Claude's 200k window
0.6×the median server
379 msto initialize
13 msto list tools
- Run it
- npx -y whatsapp-messaging-api-mcp@1.0.3 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- whatsapp-messaging-api 1.0.3
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- ≈ <0.1 % of a 1M context window, estimate
- Claude count
- The count_tokens endpoint refused the tool schemas: invalid x-api-key. The estimate stands in.
- Repository
- https://github.com/jevil25/whatsapp-messaging-api-mcp
- Registry
- active, updated 2026-09-05 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
Estimates with the o200k_base tokenizer.
| Tool | o200k estimate | Share of this server |
|---|---|---|
| send_file | 135 | 16 % |
| send_image | 124 | 15 % |
| send_text_message | 116 | 14 % |
| request_pairing_code | 104 | 12 % |
| check_contact_exists | 100 | 12 % |
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 Anthropic count_tokens endpoint refused the tool schemas (invalid x-api-key). A client that validates schemas can refuse them too.