creedspace-mcpofficial
A
licenseB
qualityA
maintenanceAI safety guardrails for any LLM in ~10 seconds: constitutional-AI content evaluation over MCP, with six configurable personas.
16
113
MIT
Best LangChain MCP Servers
LangChain is a framework for developing applications powered by language models, providing tools and components to build context-aware, reasoning applications that integrate with external data sources.
Why this server?
Exposes Creed Space safety tools as MCP tools in LangChain, allowing agents to perform constitutional adjudication and response attestation.
Why this server?
Drop-in tools for LangChain, exposing functions to check reputation, submit ratings, and list services.
AlicenseAqualityAmaintenanceA free, open reputation registry for AI microservices: check a service's trust score before calling it and submit a rating afterward. Ratings can be backed by cryptographic receipts signed by the service and are recorded in a verifiable Merkle audit log.3Apache 2.0Why this server?
Provides LangChain integration tools for building AI agents with business intelligence capabilities, including entity search, profile lookup, and healthcare professional verification.
AlicenseAqualityCmaintenanceStructured business intelligence for AI agents. 5.5M verified entities across 34 countries, 40.3M BORME mercantile acts, EU VAT validation, GLEIF, healthcare registries. 20 tools.61MITWhy this server?
Integrates with LangChain agents to convert files, HTML, and Markdown to PDF.
FileToPDF MCP serverofficial
AlicenseAqualityDmaintenanceEnables conversion of files, HTML, and Markdown to PDF through natural language, using the FileToPDF API.4752MITWhy this server?
Provides a recipe for using ProsodyAI as a LangChain tool, enabling AI agents to incorporate prosody-driven adaptation into LangChain workflows.
@prosodyai/mcp-docsofficial
AlicenseAqualityBmaintenanceExposes ProsodyAI documentation, SDK references, REST API reference (OpenAPI), and curated implementation recipes to AI coding agents via MCP tools and resources.8MITWhy this server?
Provides LangChain agents with tools to search and verify MCP servers.
MCP Queen Registryofficial
AlicenseAqualityAmaintenanceCrawls and grades MCP servers deterministically, providing a registry, leaderboard, and API to query server grades and submit feedback.7MITWhy this server?
Provides a LangChain tool specification, enabling LangChain agents to use TempGuru's event staffing tools for planning and quoting.
AlicenseAqualityAmaintenanceMCP server for W-2 event staffing across 300+ US and Canadian markets. Five read-only lookups (city coverage, staffing roles, all-inclusive W-2 rate ranges, lead-time guidance, and state-by-state compliance) plus an opt-in request_quote tool that submits a structured staffing request to TempGuru for a human-reviewed quote. No authentication required; connect with the URL alone.122212MITWhy this server?
Compatible with LangChain agents as MCP clients for browser automation and end-to-end testing
Debugg AI MCPofficial
AlicenseAqualityAmaintenanceZero-Config, Fully AI-Managed End-to-End Testing for all code gen platforms.863968Apache 2.0Why this server?
Provides a callback handler integration to trace LangChain chains and record LLM calls for observability.
spanlens-mcpofficial
AlicenseAqualityCmaintenanceMCP-native LLM observability. Query your Spanlens traces, stats, cost anomalies, and savings from Cursor, Claude Desktop, or any MCP client. Open source (MIT).712MIT
