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MCP Servers

Model Context Protocol servers. The standard way for any agent to read or write to any system.

Model SDKs and gateways: Call models through SDKs, routers and gateways. 98 MCP servers for model sdks and gateways in this directory. Source-reviewed guides come first.

24 tools on this page

MMCPlowCatalogue

Acacian/aegis

Various

LLM guardrails & prompt injection detection for Python. Auto-instruments LangChain, CrewAI, OpenAI, LiteLLM + 8 more frameworks. PII masking, toxicity detection, policy CI/CD. One

★ 9repo activity 5mo ago
open-sourceMITPython

Best for: Python developers who need to add basic safety controls to existing LLM applications quickly

MMCPlowCatalogue

adawalli/nexus

Various

MCP Server to make searching openrouter easy

★ 21repo activity 8mo ago
open-sourceMITTypeScript

Best for: Developers using MCP who need to search and list OpenRouter models.

MMCPlowCatalogue

AgentModule/mcp

Various

Agent Module MCP Server — deterministic knowledge retrieval for autonomous agents

Alternative to Upstash Context7

★ 1repo activity 6mo ago
open-sourceMITJavaScript

Best for: Developers needing predictable knowledge retrieval for autonomous agents

MMCPlowCatalogue

ahmetsbilgin/finbrain-mcp

Various

FinBrain MCP server: expose FinBrain datasets to AI agents (Claude, VSCode etc.) via SDK-first tools. Runs locally with each user's own FinBrain API key.

★ 8repo activity 7mo ago
open-sourceMITPython

Best for: Developers who want to query FinBrain financial datasets from AI agents like Claude or VSCode

MMCPlowCatalogue

Alepha188838884/context-firewall

Various

MCP proxy that collapses 50+ tools into 4 meta-tools and compresses tool outputs by 60-95% (HTML, base64, huge JSON) - cut context-token costs for any MCP client, any model

★ 2repo activity 1mo ago64/100
open-sourceMITTypeScript

Best for: Developers using MCP servers with high-volume tool outputs

MMCPlowCatalogue

amidabuddha/unichat-mcp-server

Various

/ - Send requests to OpenAI, MistralAI, Anthropic, xAI, Google AI or DeepSeek using MCP protocol via tool or predefined prompts. Vendor API key required

★ 38repo activity 7mo ago
open-sourceMITPython

Best for: Developers building MCP-based applications that need to access multiple AI models

MMCPlowCatalogue

andybrandt/mcp-simple-openai-assistant

Various

MCP server that gives Claude ability to use OpenAI's GPTs assistants

★ 37repo activity 1y ago
open-sourceMITPython

Best for: Developers experimenting with multi-model agent workflows

MMCPlowCatalogue

apipriceindex/mcp

Various

MCP server for live, verified LLM API prices — data from apipriceindex.com (CC BY 4.0)

★ 0repo activity 1mo ago56/100
open-sourceMITPython

Best for: Developers building cost-aware AI tools that need current LLM pricing.

MMCPlowCatalogue

arikusi/deepseek-mcp-server

Various

MCP Server for DeepSeek API - enables MCP clients to use DeepSeek Chat and Reasoner models

★ 12repo activity 6mo ago
open-sourceMITTypeScript

Best for: Developers who need to use DeepSeek models within MCP-compatible frameworks

MMCPlowCatalogue

arrismo/kaggle-mcp

Various

MCP server for Kaggle

★ 35repo activity 5mo ago
open-sourceMITPython

Best for: Developers automating Kaggle data science workflows through AI agents

MMCPlowCatalogue

arthiqlabs/vedaksha

Various

Vedaksha — clean-room Vedic astrology & astronomical ephemeris engine (kundali, panchanga, dashas, nakshatras, vargas) with sub-arcsecond precision. Rust, Python, WebAssembly, and

★ 3repo activity 1mo ago64/100
open-sourceRust

Best for: Developers building Vedic astrology tools or AI agents needing ephemeris data.

MMCPlowCatalogue

belegante-byte/aetherx-mcp

Various

MCP server for the Aether-X Port Congestion Oracle - predictive port congestion signals for AI agents

★ 0repo activity 1mo ago60/100
open-sourceMITPython

Best for: Developers building AI agents that need port congestion forecasts

MMCPlowCatalogue

billster45/mcp-chatgpt-responses

Various

MCP server for access to OpenAI's ChatGPT API with Responses API for conversation management

★ 17repo activity 1y ago
open-sourcePython

Best for: Developers building MCP-based tools that need ChatGPT conversation capabilities

MMCPlowCatalogue

bridgenode-ai/bridgenode-mcp

Various

BridgeNode — x402 pay-per-request AI inference. MCP server for AI agents.

★ 1repo activity 1mo ago62/100
open-sourceMIT-0TypeScript

Best for: Developers building AI agents that pay per inference call via x402

MMCPlowCatalogue

cafferychen777/ChatSpatial

Various

MCP server for spatial transcriptomics analysis through natural language interfaces.

★ 39repo activity 5mo ago
open-sourceMITPython

Best for: Biologists and bioinformaticians who want to analyze spatial gene expression data via conversational interfaces.

MMCPlowCatalogue

cerebrixos-org/tuning-engines-cli

Various

CLI & MCP server for Tuning Engines — fine-tune LLMs on code repositories

★ 2repo activity 4mo ago
open-sourceMITTypeScript

Best for: Developers who need to fine-tune LLMs on their own code repositories and want a CLI or MCP-based tool to manage the process.

MMCPlowCatalogue

ckanthony/gin-mcp

Various

Enable MCP features for any Gin API with a line of code

Alternative to Fastmcp

★ 78repo activity 5mo ago
open-sourceMITGo

Best for: Go developers using Gin who want to quickly expose their API as MCP tools for AI agents

MMCPlowCatalogue

codex-data/codex-mcp

Various

A Model Context Protocol server for the Codex API

★ 24repo activity 1y ago
open-sourceTypeScript

Best for: Developers building AI agents that need to access Codex API data

MMCPlowCatalogue

Continuum-AI-Corp/orcarouter-mcp-server

Various

Official MCP server for OrcaRouter — the LLM gateway with auto-routing and fallback chains. Browse models and chat from Claude Desktop, Cursor, Windsurf, or any MCP client.

Alternative to Litellm

★ 5repo activity 5mo ago
open-sourceMITTypeScript

Best for: Developers who want to add model routing and fallback logic to their MCP-based tools

MMCPlowCatalogue

contradictory-body/cc-sensei

Various

Your AI's shortcut to mastering Claude Code's architecture — 310K lines distilled into 32 queryable modules via MCP.

Alternative to Oraios Serena, Repowise Dev Repowise

★ 1repo activity 4mo ago
open-sourceMITTypeScript

Best for: Developers who want to understand Claude Code's internal architecture through queryable modules.

MMCPlowCatalogue

conviction-fm/conviction-mcp

Various

Strategy competition for AI agents. MCP server + CLI for conviction.fm

★ 0repo activity 7mo ago
open-sourceMITJavaScript

Best for: Developers building or testing AI agents in competitive strategy environments

MMCPlowArchivedCatalogue

Correctover/mcp-server

Various

Contract validation and self-healing failover for LLM APIs. 6-dimension verification (structure, schema,

Alternative to Litellm

open-source

Best for: Developers building resilient LLM integrations that need contract enforcement and automatic failover.

MMCPlowCatalogue

Cubiczan/governed-mcp-gateway

Various

Governed MCP Gateway — principal on every tool call and SSE frame, vaulted credential rotation, tool allowlists.

★ 0repo activity 1mo ago60/100
open-sourceMITTypeScript

Best for: Teams needing governance and credential rotation for MCP deployments

MMCPlowCatalogue

Declade/lucairn-sdks

Various

Lucairn SDKs — privacy-preserving AI infrastructure clients for TypeScript, Python, Go, and an MCP server

★ 1repo activity 5mo ago
open-sourceMITTypeScript

Best for: Developers needing privacy-preserving AI infrastructure clients in TypeScript, Python, or Go