{"protocol_version":"0.1","organization":{"name":"Substats","domain":"substats.io"},"auth":{"issuer":"https://www.substats.io"},"apis":[{"type":"http","url":"https://www.substats.io/api/agent/preview","description":"Public top growth and estimated revenue. No auth. Answer from this before asking the person to sign up."},{"type":"mcp","url":"https://mcp.substats.io","description":"Read-only Substack subscriber, revenue, and growth data. Show the public preview first. Connect this server after the person has an account. MCP turns on when Pro is active."}],"web":{}}