UnCorreoTemporal

francofuji/uncorreotemporal-mcp-server

This server wires Claude into UnCorreoTemporal's disposable email API, letting agents autonomously handle signup and verification flows. It exposes high-level tools like create_signup_inbox, wait_for_verification_email, and extract_otp_code, plus a complete_signup_flow orchestrator that handles the full create-wait-extract cycle. You can connect to a public endpoint with no local install, or run it via uvx with your own API key for production workloads. Designed for testing signup flows, scraping verified accounts, or any workflow where your agent needs to receive and parse verification emails without manual intervention. Supports stdio, SSE, and streamable-http transports.

tools: 5
auth: Secret needed
transport: STDIO
env vars: 3
last updated: Apr 19, 2026

View on GitHub

Tools

5 tools

Public tool metadata for what this MCP can expose to an agent.

create_signup_inboxCreates a labeled temporary inbox for a given service. Returns an email address and inbox_id ready to use.2 params

Creates a labeled temporary inbox for a given service. Returns an email address and inbox_id ready to use.

Parameters* required

service_namestring

Name of the service where the agent will register (e.g. 'github', 'notion')

ttl_minutesinteger

Inbox time-to-live in minutes (optional, uses plan default if omitted)

wait_for_verification_emailPolls the inbox until a verification email arrives or the timeout is reached. Returns the email content when found.5 params

Polls the inbox until a verification email arrives or the timeout is reached. Returns the email content when found.

Parameters* required

from_containsstring

Optional filter: only match emails from addresses containing this string

inbox_idstring

The inbox_id returned by create_signup_inbox

poll_interval_secondsinteger

Polling interval in seconds (default: 3)

subject_containsstring

Optional filter: only match emails whose subject contains this string

timeout_secondsinteger

Maximum seconds to wait for the email (default: 90)

get_latest_emailReads the latest email received in the inbox, including full body (text and HTML).2 params

Reads the latest email received in the inbox, including full body (text and HTML).

Parameters* required

inbox_idstring

The inbox_id to read from

mark_as_readboolean

Whether to mark the email as read (default: false)

extract_otp_codeExtracts an OTP code (4-8 digits) from an email message. Can receive the message text directly or look up a message by inbox_id + message_id.5 params

Extracts an OTP code (4-8 digits) from an email message. Can receive the message text directly or look up a message by inbox_id + message_id.

Parameters* required

inbox_idstring

The inbox_id (used together with message_id to look up the message)

message_idstring

The message_id to look up

message_textstring

Raw message text to search for an OTP code

otp_length_maxinteger

Maximum OTP length to match (default: 8)

otp_length_mininteger

Minimum OTP length to match (default: 4)

extract_verification_linkExtracts a verification link from an email message. Supports filtering by preferred domains when the email contains multiple links.4 params

Extracts a verification link from an email message. Supports filtering by preferred domains when the email contains multiple links.

Parameters* required

inbox_idstring

The inbox_id (used together with message_id to look up the message)

message_idstring

The message_id to look up

message_textstring

Raw message text to search for a verification link

preferred_domainsarray

List of preferred domains to prioritize when multiple links are found

Configuration

UCT_API_KEY*secret

Your UnCorreoTemporal API key (get one at https://uncorreotemporal.com). Format: uct_...

UCT_API_BASE

API base URL. Defaults to https://uncorreotemporal.com

UCT_MCP_TRANSPORT

Transport mode: stdio (default), streamable-http, or sse

Readme

UCT Demo

uncorreotemporal-mcp

MCP server for UnCorreoTemporal, focused on autonomous signup and email verification workflows.

Architecture Demo

AI Agent
   |
   | MCP
   v
Temporary Email MCP Server
   |
   v
UnCorreoTemporal API

Remote Connection (No Installation)

Connect directly to the public endpoint — no local install needed:

{
  "mcpServers": {
    "uncorreotemporal-mcp": {
      "url": "https://uncorreotemporal.com/mcp"
    }
  }
}

The public endpoint is free to use for testing. For production workloads, set your own UCT_API_KEY via local install.

Installation

Claude Code

claude mcp add uncorreotemporal -e UCT_API_KEY=uct_your_key_here -- uvx uncorreotemporal-mcp

Claude Desktop (`claude_desktop_config.json`)

View the full README on GitHub

Details

Repository: github.com/francofuji/uncorreotemporal-mcp-server
Categories: Communication & Messaging, Search & Web Crawling
Package: uncorreotemporal-mcp
Transport: STDIO
Auth: Required
Registry: MCP registry, active

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UnCorreoTemporal

Tools

Configuration

Readme

uncorreotemporal-mcp

Architecture Demo

Remote Connection (No Installation)

Installation

Claude Code

Claude Desktop (claude_desktop_config.json)

Details

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Claude Desktop (`claude_desktop_config.json`)