One
connectsmcp.withone.ai
Search, document and execute authenticated API calls across 700+ apps via one MCP server
https://mcp.withone.ai/mcpWebsiteOAuthlast checked 24 Aug 2026spoke MCP on 2 of 2 checks (30 days)initialize in 403 msHow to authenticate
Checked against the endpoint by our probe on 24 Aug 2026. These are the capabilities the server advertises, not a prediction about any particular client.
| Scheme | OAuth |
|---|---|
| Issuer | https://mcp.withone.ai |
| Dynamic client registration | ✓Advertised (RFC 7591) |
| Client ID Metadata Document | ✕Not advertised |
| PKCE | ✓S256 |
| Grant types | authorization_code, refresh_token |
| Scopes | user:connections:read, user:connections:write, user:secrets:read, user:secrets:write, user:authkit:read, user:authkit:write, user:workflows:read, user:workflows:write, user:workflows:executions:read, user:workflows:executions:write, user:ai_skills:read, user:ai_skills:write, org:connections:read, org:connections:write, org:secrets:read, org:secrets:write, org:authkit:read, org:authkit:write, org:projects:read, org:projects:write, org:workflows:read, org:workflows:write, org:workflows:executions:read, org:workflows:executions:write, org:ai_skills:read, org:ai_skills:write, project:workflows:read, project:workflows:write, project:workflows:executions:read, project:workflows:executions:write, project:ai_skills:read, project:ai_skills:write, project:connections:read, project:connections:write, project:secrets:read, project:secrets:write, project:authkit:read, project:authkit:write |
| Protected-resource metadata | ✓Published (RFC 9728) |
| Anonymous access | Refused — credentials required |
| Documentation | https://withone.ai/docs |
What the probe found
A cross-origin preflight came back without Access-Control-Allow-Origin, so the endpoint is reachable from native clients only — code running in a web page is stopped by the browser before a request is ever sent.
Contract history
No contract recorded yet — the server has not answered an anonymous connection.
Run this server? A verified owner can publish snapshots with their own credentials, and the contract history starts here, marked owner-reported.
mcpi-cli publish https://mcp.withone.ai/mcpGet alerted when this contract changes
Depend on this server? Leave an email. No contract is on record here yet, so alerts can only start once one is published — and alerts are being built; signing up is what tells us to hurry.
Prefer a feed reader? This page's contract changes are also an Atom feed.
Status badge
Status for a README, from the last probe — cached an hour, so up to seven hours behind the endpoint. Links back to this page.
[](https://mcpi.app/servers/one)Own this server?
Sign in to claim this listing by proving control of the endpoint.