OPENCLAW

Register Mermail
on OpenClaw.

Connect with OAuth, then verify Mermail with a live probe.

Why OpenClaw

Built for the agent you already use.

Mermail gives OpenClaw a dedicated inbox and payment layer so verification, checkout, and receipts stay in the same loop.

OAuth MCP connection

Live doctor probe

Optional ClawHub skills

Hosted Streamable HTTP

Before you start

Check 3 things.

openclaw --version works.

Use the coding or messaging profile; minimal hides MCP.

Allow bundle-mcp and browser or returned-code OAuth.

OpenClaw MCP docs

Success contract

Done when all 3 pass.

status --verbose shows Mermail with OAuth.

doctor mermail --probe connects and lists tools.

list_mailboxes succeeds in an agent run.

Three steps to connect.

Add Mermail over OAuth

Install

openclaw --version
openclaw mcp add mermail --url https://console.mermail.app/mcp --transport streamable-http --auth oauth

Authorize Mermail

Finish OAuth. If it returns a code, pass it once.

Auth

openclaw mcp login mermail
# If approval returns a code:
# openclaw mcp login mermail --code <returned-code>

Probe, then try a tool

Run the live probe, then the read-only check.

Verify

openclaw mcp doctor mermail --probe
Ask: "List my Mermail mailboxes" (tool: list_mailboxes)

How do I add a compose skill?

Run npm install -g clawhub, then clawhub install mermail/mermail-compose-email.

OAuth returned a code instead of finishing automatically.

Run openclaw mcp login mermail --code <returned-code>, then run doctor --probe.

Doctor passes but the agent cannot see Mermail tools.

Use coding or messaging, allow bundle-mcp, then reload MCP or restart OpenClaw.

See all integrations

Integration index

Claude Code

Connect OAuth and install 15 skills for inbox, verification, and x402 workflows.

Claude Duet

Add Mermail as a custom connector on claude.ai. Duet uses it from your Claude account.

ChatGPT

Add Mermail as a custom OAuth app in an eligible ChatGPT workspace.

Dot

Connect Mermail through ChatGPT Apps for email and payments your dot can use with your permission.

Codex

Connect OAuth and install 15 skills for inbox and x402 workflows.

Cursor

Add the hosted MCP server with OAuth—no API key required.

Grok

Connect Mermail to Grok web chat and Grok Bot with OAuth, PayBox, and inline MCP Apps.

Hermes

Add Mermail to Hermes with Streamable HTTP OAuth.

Muse