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What is inbox.dog?

inbox.dog is a service that provides Gmail OAuth credentials for AI agents, enabling full read, write, and search access to Gmail without requiring developers to undergo Google's CASA Tier 2 security audit. Built by a team focused on agent tooling, it solves the problem that most AI agents can only read Gmail but cannot send emails or manage labels due to restricted write scopes. The core capability is offering pre-verified OAuth tokens that skip the lengthy and costly audit process. It supports integration via a no-code web interface, an MCP server for agent frameworks like Claude and Cursor, and a JavaScript SDK for custom applications. The tool is ideal for developers building AI agents that need autonomous email capabilities, as well as non-technical users who want to connect Gmail to their agents quickly. It is free to use, open source, and handles token refresh automatically.

AI Tool Review Summary

Performance Score

4.5/5

Content/Output Quality

Reliable and comprehensive

Interface

Simple and developer-friendly

AI Technology
LLMNLP
Purpose of Tool

To provide AI agents with full Gmail access without the need for a security audit.

Compatibility

Works with MCP clients (Claude, Cursor, Windsurf), npm, and any HTTP-based agent.

Pricing

Free to use with no paywall

Features

Features with the highest value for users are highlighted here.

Full Gmail read, write, search, send

CASA Tier 2 security audit passed

MCP native server support

Auto-refresh tokens

No-code connection option

npm SDK for custom apps

Open source MIT licensed

Free to use with unlimited requests

How It Works

1

Create an API Key

Go to inbox.dog and generate a free API key to get your client ID and secret.

2

Choose Integration Method

Pick no-code, MCP server, or npm SDK based on your technical comfort and use case.

3

Authenticate Gmail

Link your Gmail account via OAuth; inbox.dog handles the token exchange and refresh.

4

Use with Your Agent

Your agent can now read, write, and search Gmail using the provided credentials or MCP tools.

Who Is It For?

AI Agent Developers

Startup Teams

Non-Technical Users

Open Source Contributors

Enterprise IT

Freelancers

Customer Support Teams

Product Managers

Hobbyists

MCP Client Users

Pricing

Popular

Free

$0/free
  • Unlimited Gmail requests
  • Auto-refresh tokens
  • MCP server access
  • npm SDK access

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Pros & Cons

Pros

  • Skip the expensive and lengthy Google security audit for Gmail write access.
  • Easy integration via MCP, no-code, or SDK with automatic token refresh.

Cons

  • Requires trusting a third-party service with Gmail credentials.
  • Limited to Gmail only; no support for other email providers.

FAQs

Just Launched

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Release History

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Rating

5.0

Pros

Cons

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