UnCorreoTemporal
Give your agent disposable inboxes to complete signup, OTP, and email-verification flows while you prototype or ship auth.
Overview
UnCorreoTemporal is a MCP server for the Build phase that provisions temporary inboxes so agents can capture OTPs and verify signups.
What is this MCP server?
- Create temporary inboxes and wait for inbound mail from agent workflows
- Extract OTP codes and verify signups without manual mailbox checking
- Requires UCT_API_KEY from uncorreotemporal.com (uct_... format)
- Supports stdio default plus streamable-http or SSE via UCT_MCP_TRANSPORT
- Published on PyPI as uncorreotemporal-mcp v0.1.1 with uvx runtime hint
- Server version 0.1.1 on PyPI
- Required secret env UCT_API_KEY
- Default API base https://uncorreotemporal.com
What problem does it solve?
Automated agents cannot finish email verification or OTP steps because they lack a safe disposable inbox API.
Who is it for?
Indie builders shipping SaaS auth who want Claude Code or Cursor to drive real verification flows in prototype and QA.
Skip if: Production user mailboxes, marketing drip testing, or teams that forbid third-party temp-mail services in compliance reviews.
What do I get? / Deliverables
Your agent can create inboxes, wait for messages, and return OTPs so signup and auth flows are testable end to end.
- Agent-managed temporary inboxes tied to your product signup tests
- Extracted OTP or verification content returned as tool output
- Repeatable verification scripts for staging auth flows
Recommended MCP Servers
Journey fit
Primary shelf is Build integrations because the server wires external temporary-mail APIs into agent-driven product flows. Integrations subphase is where OTP capture and inbox polling belong for automated E2E verification.
How it compares
Temporary-email MCP integration, not an email marketing skill or SMTP sending server.
Common Questions / FAQ
Who is UnCorreoTemporal for?
Solo and indie builders using AI agents to test signup, OTP, and verification flows against real disposable inboxes.
When should I use UnCorreoTemporal?
Use it while prototyping or shipping auth when you need agents to wait for verification email and extract codes without manual inbox checks.
How do I add UnCorreoTemporal to my agent?
Install uncorreotemporal-mcp (uvx/PyPI), set UCT_API_KEY, optionally UCT_API_BASE and UCT_MCP_TRANSPORT, then register the stdio server in your MCP client config.