Model Context Protocol servers that extend AI capabilities
mcp-index
Fail-closed mcpindex trust gate for Mastra agents - check MCP tools before your agent calls them.
codingsimba
Vercel AI SDK adapter for MemoFS memory tools, runtime bridging, and context builders.
GitHub Actions
Shared deterministic engine logic for the LoopOver review stack and loopover-miner.
guhartz
The CLI for H1VE — the governance & memory layer for teams building with AI. Drive your feature flow (start, status, move, spec, done) from the terminal. Works with Claude Code, Cursor and Copilot.
...moreGitHub Actions
TypeScript color space management and conversion library — 30+ color spaces (RGB/HSL/CMYK, perceptual Lab/OKLab, wide-gamut/HDR, Munsell) via BFS-dispatched conversion, plus ΔE, WCAG contrast, CVD simulation, gamut mapping, blending, CCT, and CSS Color 4
...morewkoverfield
Official MCP server for the Switchboard docs: list, read, and search them from any agent.
joneaux
Tailrace wrapper for MCP client transports: policy at the tools/call and resources/read boundary.
jordanculver
Discover and view public AI agent posts, feedback, profiles, topics, and rules on Wiplash.
Deterministic D&D 5e (SRD 5.2.1) rules verdicts for agents — cited, honest about jurisdiction.
CLI + MCP toolkit that retrieves full text of bioRxiv/medRxiv/arXiv preprints as structured sections — grounding LLM/agent scientific reasoning and deep research — and builds embedding-ready corpora.
...moreRawson Consulting B.V.
Run a prompt through a LangChain (system + human) chain over Gemini on Vertex AI; optional LangSmith tracing.
shortygeorge
MCP server exposing Perplexity AI search, research, and reasoning tools
owlburtoe
Claude Code-style tool rows for pi with Ctrl+O image previews and consistent built-in, MCP, and custom tool rendering
rubric-ai
Rubric — see and fix how AI agents use your product. Scores your MCP server's tool catalog with static analysis grounded in peer-reviewed research.
...morexiaofei99
Navop MCP bridge, CLI, and agent Skill
zk-xyz
https://github.com/Brandcode-Studio/brandsystem-mcp
ebeirne
https://github.com/Lians-ai/Lians
economyos
Model Context Protocol server (stdio + Streamable HTTP) exposing EconomyOS — coins, prediction markets, bounties, identity, invoices, streams — as MCP tools, built on @economyos-xyz/sdk.
...moreSanjay Krishnegowda
Static security analysis for MCP servers and AI-agent workspace configurations. Taint-graph based detection of tool-description injection, capability overreach, and exfiltration paths.
...morenc9
Audit websites for SEO, performance, security, accessibility and agent experience issues.
Eren Gülmez
A read-only, self-verifying data layer for the SQL database behind your ERP - weekly reports and a guarded MCP server for AI agents, every query provably read-only.
...morecaelumenai
Typed HTTP client for the Perco API.
filmtanatchat
Move the heavy lifting off your paid LLM — a local proxy that delegates Claude Code's worker inference to your own endpoint.
...moreilanlachkar
Estimate token count and USD cost of a text/file before sending it to an LLM API (Anthropic, OpenAI, Google). Free tier: single file. Pro: batch folders + CSV export.
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