1password
1password is an MCP server published by CakeRepository with verified support for the current MCP specification revision (2026-07-28). Last verified 2026-08-20.
Does 1password support the current MCP specification (2026-07-28)?
Yes. 1password has verified support for MCP revision 2026-07-28, the current stable specification (last verified 2026-08-20).
Is 1password a first-party (official) MCP server?
Undetermined. We have not verified the publisher relationship for 1password (as of 2026-08-20).
How do I connect to 1password?
1password is available via the package npm:@takescake/1password-mcp, the official MCP Registry under io.github.CakeRepository/1password, the source repository at https://github.com/cakerepository/1password-mcp. Authentication: unknown. Transports: stdio.
Does 1password support MCP revision 2026-07-28?
Yes. 1password supports MCP revision 2026-07-28 (checked 2026-08-20).
When were 1password's facts last verified?
2026-08-20. Each fact on this page links to the sources used to verify it.
MCP server for 1Password service accounts - tools and resources for vaults and credentials
Which MCP spec revisions does 1password support?
1password has 1 verified spec-support record. Each row lists the revision, the verified status, the evidence URL, and the date that fact was last checked.
| Spec revision | Status | Last checked | Evidence |
|---|---|---|---|
| MCP 2026-07-28 | Supported | Source |
How widely adopted is 1password?
Not ranked in The MCP 500: insufficient public data (coverage floor not met) (snapshot ). The Adoption Index measures public signals only; it says nothing about quality.
Repository and package signals for 1password
Measured directly from the source registries, not asserted from a document. Each figure carries the date it was read; none of it affects the verified spec status above.
Repository as of
- Stars
- 20
- Forks
- 5
- Last pushed
- (64 days ago)
- Created
- Open issues
- 0
- Primary language
- TypeScript
- License (repository)
- Apache-2.0
- Continuous integration
- Present
- Tests
- Present
- Security policy
- None
Declared topics: 1password, 1password-integration, mcp — author-declared on the repository, not our taxonomy.
Package (npm) as of
- Latest version
4.0.1- Last published
- First published
- Releases
- 19
- License (package)
- Apache-2.0
- Maintainers
- 1
- Direct dependencies
- 3
- Unpacked size
- 199 KB
- Registry signature
- Signed
- Build provenance
- Attested
How was this verified, and what are the sources?
Verified · method: sdk-protocol-constant
· confidence 0.85 (Good).
- Official MCP Registry record for io.github.CakeRepository/1password at version 2.5.0 - lists package npm:@takescake/1password-mcp and repository https://github.com/cakerepository/1password-mcp - accessed
- npm registry metadata for @takescake/1password-mcp at published version 4.0.1, retrieved 2026-08-20 - declares a dependency on @modelcontextprotocol/server, which resolves to @modelcontextprotocol/server@2.0.0 - accessed
- Published artifact of @modelcontextprotocol/server@2.0.0, retrieved 2026-08-20 - the artifact declares revision 2026-07-28 and implements the stateless server/discover method. Read from the artifact itself, not from release notes - accessed