dev.primitive/email
primitive
Email infrastructure for AI agents — send, receive, search, and reply to email over MCP.
alive probed 2026-10-11 · HTTP 200
14tools
12ktokens in Claude Opus 5.5
12ktokens in Claude Code
6.1 %of a 200k context window
7.6ko200k_base estimate
958 msto initialize
219 msto list tools
- Endpoint
- https://www.primitive.dev/mcp (streamable-http)
- Host
- www.primitive.dev
- Protocol
- 2025-11-25
- Reports itself as
- primitive 0.2.0
- Capabilities
- prompts, resources, tools
- Instructions
- 5 312 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-11. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/primitivedotdev/primitive-mono-repo
- Website
- https://www.primitive.dev
- Registry
- active, updated 2026-10-10 · registry entry
- Reachable
- 9 of the last 9 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| sendEmail | 1 685 | 22 % |
| searchEmails | 1 032 | 14 % |
| listEmails | 826 | 11 % |
| replyToEmail | 674 | 9 % |
| listSentEmails | 557 | 7 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-11 10:19 | alive | 1.4 s | 14 | 12k | 7.6k |
| 2026-10-09 11:14 | alive | 1.0 s | 14 | 12k | 7.6k |
| 2026-10-07 11:06 | alive | 649 ms | 30 | 14k | 8.3k |
| 2026-10-05 13:59 | alive | 958 ms | 30 | 14k | 8.2k |
| 2026-10-05 00:24 | alive | 320 ms | 30 | 8.2k | |
| 2026-10-04 10:00 | alive | 712 ms | 30 | 8.2k | |
| 2026-10-04 07:53 | alive | 1.9 s | 30 | 8.2k | |
| 2026-10-03 20:33 | alive | 1.3 s | 30 | 8.2k | |
| 2026-10-03 17:50 | alive | 757 ms | 30 | 8.2k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/dev.primitive/email)
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.