head to head/Developer Tools

Letter IRL vs PermitStack

Neck and neck on boosts. Profiles, pricing and deals below.

Letter IRL

Connect Letter IRL

community boosts

⚡ 0

pricing

Freemium

what it is

Add Letter IRL to ChatGPT, Claude or another AI app, and send real letters and postcards from your conversations.

PermitStack

PermitStack Documentation

community boosts

⚡ 0

pricing

Freemium

what it is

Connect PermitStack to Claude, ChatGPT, Claude Code and other MCP apps: the hosted read-only connector, how sign-in works, what a connected app can read, and how to disconnect it.