One
Spec Support Unverified Confidence: Good (0.85)One is an MCP server published by withone.ai; its MCP spec-revision support has not been verified yet. Last verified 2026-08-15.
Does One support the current MCP specification (2026-07-28)?
Undetermined. We have not verified which MCP specification revision One supports (as of 2026-08-15).
Is One a first-party (official) MCP server?
Undetermined. We have not verified the publisher relationship for One (as of 2026-08-15).
How do I connect to One?
One is available via a hosted remote endpoint at https://mcp.withone.ai/mcp, the package npm:@withone/mcp, the official MCP Registry under ai.withone/mcp, the source repository at https://github.com/withoneai/mcp. Authentication: unknown. Transports: streamable-http.
When were One's facts last verified?
2026-08-15. Each fact on this page links to the sources used to verify it.
Search, document and execute authenticated API calls across 500+ apps via one MCP server
How widely adopted is One?
Ranked #422 in The MCP 500 with Adoption Index 61.59 (snapshot , methodology v1).
| Measurement | Value | Source |
|---|---|---|
| Official MCP Registry | yes | API · |
| npm downloads (weekly) | 366 | API · |
How was this verified, and what are the sources?
Verified · method: registry-record
· confidence 0.85 (Good).