API v3 (alpha)
2026-08-26

Add MCP server to your AI tool

Allow AI tools and LLMs to interact with the API documentation portal through MCP.

MCP server URL

https://api.onetimesecret.com/doc/v3-api/mcp

Standard setup for AI tools providing an mcp.json file

mcp.json 
{
  "v3 - Secrets API (preview) MCP server": {
    "url": "https://api.onetimesecret.com/doc/v3-api/mcp"
  }
}
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Base URL 
https://ca.onetimesecret.com

Our next-generation API. Similar to v2 with JSON types and new endpoints, but still evolving. Although we use the v3 API to power our UI, it is not recommended for production use externally until we reach stable status. Subject to change without deprecation.

This is version 2026-08-26 of this API documentation. Last update on Aug 26, 2026.