# Sendinel (slim) > Sendinel, an MCP server by sendinel.ai, listed from the official MCP registry. Indexed, not reviewed: facts and our own checks, no score or ranking. AI-controlled email ops for campaigns, contacts, segments, analytics, and sending. - Full: https://www.anchorterminal.com/tools/sendinel-mcp-server.md (~500 tokens) · this version ~430 tokens · JSON https://www.anchorterminal.com/tools/sendinel-mcp-server.json · canonical https://www.anchorterminal.com/tools/sendinel-mcp-server - Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05 # Sendinel > Indexed, not reviewed: facts from the official MCP registry and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/ - Kind: MCP server, by sendinel.ai (https://sendinel.ai/developer) - Category: Email delivery APIs (https://www.anchorterminal.com/categories/email.md) - Listed because: It's published in the registry under sendinel.ai, a namespace the registry only gives to whoever proves they control that domain. It's in real use: 1,681 npm downloads a week. - What the official MCP registry says: AI-controlled email ops for campaigns, contacts, segments, analytics, and sending. ## Facts - MCP registry: `ai.sendinel/mcp-server` 1.0.26 - Endpoint: https://sendinel.ai/mcp (streamable HTTP) - Package: npm `@sendinel/mcp-server` (stdio) - Source: https://github.com/kmdesle/sendinel-ai - Website: https://sendinel.ai/developer - npm downloads a week: 1,681 - Registry entry updated: 2026-09-26 ## Tools - Tools: the endpoint asks for credentials before listing them (checked 2026-10-04 22:20 UTC) - JSON: https://www.anchorterminal.com/api/v1/tools/sendinel-mcp-server.json - Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming