email.mailcycle/mailcycle
Mailcycle
An email address for your AI agent. Read, wait for and reply to mail, decrypted on your machine.
alive probed 2026-10-19
7tools
≈ 1.0ktokens, estimate
≈ 0.5 %of Claude's 200k window
0.7×the median server
381 msto initialize
13 msto list tools
- Run it
- npx -y mailcycle-mcp@0.6.2 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- mailcycle 0.6.2
- 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.
- Website
- https://mailcycle.email/agents/
- Registry
- active, updated 2026-10-15 · 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_message | 221 | 22 % |
| reply | 202 | 20 % |
| read_attachment | 191 | 19 % |
| wait_for_message | 180 | 18 % |
| list_messages | 98 | 10 % |
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.