Proof Inbox MCP

Public listing for Proof Inbox: prepaid email-verify credits for MCP agents (Grok Bot, Cursor, Claude, and any Streamable HTTP client).

The product app stays in a private repo. This repo exists so directories that scrape GitHub can find the hosted MCP.

Any MCP client

Point a Streamable HTTP client at https://mcp.proofinbox.com/mcp.

Code

URL:      https://mcp.proofinbox.com/mcp
Headers:  Authorization: Bearer <workspace_token>

Get the token from checkout. Reuse it. Never invent one.

Settings → Plugins → add a custom MCP server (not the Marketplace catalog).

Code

Name:     Proof Inbox
URL:      https://mcp.proofinbox.com/mcp
Headers:  Authorization: Bearer <workspace_token>

Get the token from checkout. Reuse it. Never invent one.

balance — tank check. Costs 0.
verify_email — fresh check costs 1. Cache (30 days), syntax, and vendor unknown cost 0.
receipts — checkout session id. Do not invent it.

On payment_required, open the returned checkout_url.