io.github.CakeRepository/1password
1password-mcp
MCP server for 1Password service accounts — tools and resources for vaults and credentials
alive probed 2026-10-15
13tools
4.2ktokens in Claude Opus 5.5
4.3ktokens in Claude Code
2.1 %of a 200k context window
2.4ko200k_base estimate
506 msto initialize
12 msto list tools
- Run it
- npx -y @takescake/1password-mcp@2.5.0 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- 1password-mcp 2.5.0
- Capabilities
- prompts, resources, tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/CakeRepository/1Password-MCP.git
- Registry
- active, updated 2026-07-04 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| item_edit | 406 | 17 % |
| note_create | 284 | 12 % |
| password_create | 254 | 11 % |
| item_get | 204 | 9 % |
| password_read | 202 | 8 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.CakeRepository/1password)
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.