Meta Muse
Unverified. Meta’s official posts (launch, Muse for Small Business) and its help center say Muse supports custom connectors, but don’t document MCP URLs, headers or OAuth for them. There is no documented way to send an API key.
What is documented
Section titled “What is documented”- You ask Muse to create a custom connector; it may look up the service’s API information, and it keeps credentials in its Secure Credentials Store. Meta doesn’t review custom connectors.
- Businesses can submit a connector to Meta’s directory through platform.muse.ai. Meta reviews them.
What third parties report (not confirmed by Meta)
Section titled “What third parties report (not confirmed by Meta)”- Settings → Connectors → add custom connector, paste a public HTTPS MCP URL, then sign in with OAuth.
- Muse can write its own MCP client on its VM and save it as a skill.
Recommendation
Section titled “Recommendation”Add https://mcp.crossmart.io/mcp as a custom connector and
sign in with OAuth. Don’t give Muse a key in chat to “build a
connector”: it would sit in a conversation, and the connector would be unreviewed.
Muse’s skill format is not documented, so the Crossmart skill can’t be installed there yet.