API v1 (Legacy)
2026-06-12

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/api-v1/mcp

Standard setup for AI tools providing an mcp.json file

mcp.json 
"v1 - Secrets API (legacy) MCP server": {
  "url": "https://api.onetimesecret.com/doc/api-v1/mcp"
}
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Base URL 
https://eu.onetimesecret.com

Our legacy REST API, which is in maintenance mode. Originally designed in the 2010s, requests are form encoded and responses are JSON with a simple, flat structure. Not recommended for new integrations. Receives only critical bug fixes and security patches.

This is version 2026-06-12 of this API documentation. Last update on Jun 12, 2026.