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97,393 servers. Updated
19 Best Email MCP Servers: compared and ranked, October 2026Ranked from 2,721 matching servers on stars, growth, downloads and maintenance. Updated .

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  • A
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    quality
    A
    maintenance
    Enables self-hosted AI gateway and agent control plane with governed MCP tools, virtual-key budgets, caching, and audit, supporting OpenAI, Anthropic, Gemini, MCP, and A2A protocols. It provides deterministic prompt enhancement and governed execution with a zero-credential first run.
    8
    Apache 2.0
  • A
    license
    Not graded
    quality
    C
    maintenance
    Enables authorized users to manage the versioned company YAML configuration and preview generated email responses through an OAuth-protected MCP interface. It supports approved-knowledge-based drafting while keeping prices, conditions, and signatures literal and routing uncertain enquiries to staff review.
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    Provides local, deterministic scoring and detailed auditing of text for AI-writing patterns via two read-only tools, with no network calls or language models.
    4
    2
    9 npm
    3
    MIT
  • A
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    A
    quality
    A
    maintenance
    Predicts the outcome of Dutch court cases dismissed, partly granted, or granted using a model trained on 609,715 rulings, with the outcome leakage measured and removed: 92% of Dutch judgment texts state the outcome verbatim, 0.1% remains after the cut, giving 78.2% accuracy against a 43.7% majority baseline. The lekkage_check tool exposes that same measurement so anyone can test a datase
    2
    3
    Apache 2.0
  • A
    license
    A
    quality
    B
    maintenance
    Provides AI assistants with real-time web search, reasoning, and research capabilities through Perplexity's Agent API and Search API, enabling tools for search, conversational Q&A, deep research, and advanced reasoning.
    4
    19,315 npm
    MIT
  • A
    license
    A
    quality
    C
    maintenance
    Enables agents to make calibrated decisions via six MCP tools for classification, relevance ranking, claim verification, action gating, next-step control, and model listing, using Jev's System One model without generating text.
    6
    21
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    Provides tools to retrieve the GodPrompt universal system prompt and its components (core skill, protocols, gates, anti-patterns) for AI software development, plus task classification. Designed for progressive context usage.
    7
    1,904 npm
    1
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    Seven-layer agent memory over MCP. zenbrain_store routes each memory itself: steps become a procedure, emotionally weighted content an episode, high-confidence content a pinned core memory, anything else a semantic fact. zenbrain_recall tags every result with its layer; zenbrain_consolidate runs one sleep-like maintenance pass. Local SQLite file, no account, no network call.
    4
    25
    Apache 2.0