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"List of Easy-to-Use Free MCP Servers for Proof of Concept Development" matching MCP servers:

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    Enables agents to prove and verify that a real, unique human performed an action, issuing machine-readable signed credentials with public verification.
    Apache 2.0
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    A
    quality
    A
    maintenance
    Records privacy-preserving receipts for AI-assisted tasks and enables optional onchain reward claiming via AIPOU tokens. Integrates with MCP-compatible clients like Claude and Cursor.
    9
    3
    MIT
  • A
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    quality
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    Retrieves metadata for Bank of Canada financial data series using the Valet API. Supports keyless access with date parameters in YYYY-MM-DD format.
    11
    MIT
  • A
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    quality
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    Enables AI assistants and developers to analyze code for language-specific best practices and idiomatic patterns across programming languages, CI automation, and configuration formats.
    16
    2
    MIT
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    quality
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    Enables AI-assisted clan analysis for Clash of Clans by reading official API data and applying customizable rubrics for war grading, promotion screening, and carry-forward decisions.
    1
    MIT
  • F
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    quality
    D
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    Exposes studio profile and contact information for Symbols of Wealth Studio, enabling AI assistants to answer queries about creative studios in France, AI-powered content production, and premium brand content services.
  • F
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    quality
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    maintenance
    Read-only MCP server for the July 2026 survey of AI in open-source design systems, enabling agents to query 19 systems' affordances, coercion techniques, and platform data via 9 tools, 2 resources, and 2 prompts.
    1
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    license
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    MCP server for administering wg-easy (WireGuard Easy) instances, enabling listing, creating, updating, enabling/disabling, and deleting WireGuard clients, fetching configs and QR codes, and inspecting server status via the wg-easy REST API.
    11
    0
    MIT
  • A
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    quality
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    Enables AI agents to discover x402 payment services and query on-chain-verified settlement volumes per facilitator through the Model Context Protocol.
    6
    195
    MIT
  • A
    license
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    quality
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    Free and open-source MCP server for managing n8n workflows, executions, and tags via n8n's API. Enables workflow creation, activation, debugging, and deletion from any MCP client.
    12
    2
    MIT
  • A
    license
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    quality
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    maintenance
    This MCP server publishes commit-bound proof summaries to a specified HTTPS webhook, featuring fail-closed writes and a clear authority boundary for safe external actions.
    1
    MIT