sendgrid-mcp.yml

SendGrid's Model Context Protocol coverage is served by Twilio, its parent company. On 2026-08-13 the API Evangelist pipeline PROBED https://mcp.twilio.com/docs and got a live, UNAUTHENTICATED MCP server — `initialize` returned serverInfo {name: twilio-docs-mcp, version: 0.1.0, protocolVersion: 2025-11-25}, and `tools/list` returned two real tools with full inputSchemas (saved verbatim to mcp/sendgrid-mcp-tools-list.json). Calling twilio__search with product="sendgrid" returns SendGrid operations keyed by the same tsg_* spec identifiers as the OpenAPI in this repo (e.g. op::tsg_mail_v3::SendMail -> POST /v3/mail/send), so this endpoint genuinely serves the SendGrid contract rather than merely mentioning it. DOMAIN JUSTIFICATION: SendGrid is a Twilio company and its entire developer reference is published on www.twilio.com/docs/sendgrid; mcp.twilio.com is the same parent host that serves that documentation, and Twilio announced the server in "Introducing the Twilio MCP Server and Skills" (2026-05-07). NOTE ON SHAPE: this is a DOCUMENTATION/DISCOVERY MCP server, not an execution server. Its two tools search and retrieve API specifications; they do not send mail or mutate a SendGrid account. An agent still calls the REST API directly for execution. The older stdio server @twilio-alpha/mcp (which does generate callable tools from Twilio's OpenAPI) is recorded below as the local-stdio option; it was last published 2025-07-07.

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