Browse all Model Context Protocol servers with quality scores, stars, languages and maintenance activity.
Local-first system capturing screen/audio with timestamped indexing, SQL/embedding storage, semantic search, LLM-powered history analysis, and event-triggered actions - enables building context-aware AI agents through a NextJS plugin ecosystem.
Official Elasticsearch MCP server — query and explore Elasticsearch indices from AI agents.
fastCRW — open-source (AGPL-3.0), self-hostable Rust web crawler & search API for AI agents. Tools: `scrape`, `crawl`, `map`, and SearXNG-backed `search`. Single ~6MB static binary; reproducible 1K-URL benchmarks faster than hosted alternatives. Hosted MCP at [fastcrw.com/mcp](https://fastcrw.com/mcp) (Streamable HTTP, OAuth) or self-host.
Exposes the RSigma Sigma detection-engineering toolkit to AI agents over stdio or Streamable HTTP with `rsigma mcp serve`. Tools to author, lint, validate, and convert Sigma detection rules, evaluate and explain detections against log events, and inspect correlation state, all backed by a native Rust engine.
Control the FluxDown multi-protocol download manager (HTTP/FTP/BitTorrent/HLS): add, list, pause, resume, remove downloads and manage queues.
MCP server that lets AI agents create and manage public tunnels to local services (webhooks, dev servers, sharing) — six tools covering HTTP/TCP/UDP tunnels, custom subdomains, regions, and load-balanced pools. Pairs with the rustunnel CLI; managed cloud or self-hosted (AGPL).
Local-first cognitive memory for AI agents. FSRS-6 scheduling, smart ingest, SQLite storage, portable sync, embedded dashboard, and optional Cognitive Sandwich hooks for Claude Code, Cursor, Codex, and other MCP clients.
Biomedical research MCP server providing access to PubMed, ClinicalTrials.gov, and MyVariant.info.
Semantic code indexer with GraphRAG knowledge graph. Index your codebase, search in natural language, and expose everything via MCP so AI agents understand architecture — not just files.
AI-native ontology engineering with 39 tools and 5 prompts for OWL/RDF/SPARQL. Validate, query, diff, lint, version, and govern knowledge graphs via Oxigraph triple store.
A Terraform MCP server allowing AI assistants to manage and operate Terraform environments, enabling reading configurations, analyzing plans, applying configurations, and managing Terraform state.
Cognitive memory for AI agents with Hebbian learning, 3-tier architecture, and knowledge graphs. Single ~15MB binary, runs offline on edge devices.
Coding agent with basic list, read, replace_in_file, write, execute_command and web search tools. Supports multiple projects concurrently.
A Model Context Protocol server for embedded debugging with probe-rs - supports ARM Cortex-M, RISC-V debugging via J-Link, ST-Link, and more
Chromium-free web content extraction in a single binary. Fetch, render, crawl, and screenshot powered by the Servo browser engine with a built-in MCP server.
Official Longbridge brokerage MCP — 110 tools for US/HK real-time quotes, options, trading, fundamentals, analyst ratings, calendars, price alerts, DCA plans, portfolio analytics and community sharelists. Hosted at `https://openapi.longbridge.com/mcp` with OAuth 2.1 via RFC 9728.
Persistent cognitive memory for Claude Desktop. Sub-ms recall, offline, encrypted.
Agent-first cognitive substrate with 18 manifest-driven verbs (germinate / eat / assimilate / sporulate / traverse / immune / molt / …) and 25 lint dimensions enforcing contract invariants mechanically (R1–R7). Cross-session / cross-project memory via a self-validating filesystem graph — AST + markdown-link derived, not embedding-based. Provider-agnostic by design: MP1/MP2 dims forbid LLM-SDK impo
Earth memory MCP server that gives AI agents signed geospatial facts and cite-able receipts for place-based questions. Covers elevation, land cover, surface water, vegetation, and built-up context. Public endpoint at `https://emem.dev/mcp`.
A Javascript code execution sandbox that uses v8 to isolate code to run AI generated javascript locally without fear. Supports heap snapshotting for persistent sessions.
High-performance, token-efficient spreadsheet analysis/editing (xlsx/xlsm) with region detection, structured reads, formula/style inspection, forking mechanics, and recalculation. Cross-platform.
Universal MCP gateway with single-port multiplexing and Meta-MCP. 4 meta-tools replace 100+ registrations, saving 95% context window. Hot-reloadable capabilities, OpenAPI auto-import, 42 starter capabilities (25 zero-config).
Local-first, MCP-native persistent memory for AI agents — a single Rust binary with embedded SQLite, hybrid FTS5 + dense-vector search, and optional AES-256-GCM encryption. Fully offline, no cloud.
Connects to your Pinecone Assistant and gives the agent context from its knowledge engine.
Local-first persistent memory for AI coding agents. Hybrid vector + full-text search (LanceDB + Tantivy), separate Markdown and Tree-sitter code indexes, per-project isolated vaults shared across IDEs (Cursor, Zed, Claude Code, Codex), bounded recall with abstain-on-low-confidence.
A high-performance Rust reimplementation of WCGW for code agents, providing shell execution and advanced file management capabilities for LLMs via MCP.
MCP server that gives AI coding agents on-demand access to private project docs via BM25 ranked search. One setup for Claude Code, Cursor, Codex, Gemini CLI, and more. Docs stay private, never in public repos.
Lightweight browser MCP server for LLM agents. Runs JavaScript, follows links, fills forms, manages cookies, and returns low-token BlockMaps from a single native binary without Chrome.
Deterministic knowledge graph MCP server. Single binary, zero LLM/embedding calls in the bridge, BLAKE3 state hashing, canonical KREX export for byte-identical audit. Local-first via redb (ACID). **Alpha**.
ClickUp API integration with 143 MCP tools covering all ~130 endpoints. Token-efficient compact responses (~98% smaller than raw JSON), flattening nested objects for minimal context usage. Also works as a standalone CLI.
Render, analyze, and verify audio (WAV or FLAC) through a fully offline, deterministic engine. Compose scores as data, render byte-identical PCM, pull loudness, pitch, tempo, key, and structure reports, generate spectrograms, and diff two renders against each other. No ffmpeg, no audio device, just numbers an agent can actually reason about. `cargo install cochlea-mcp`
Local repo-intelligence index and MCP server for coding agents — "what a repository knows about itself." Hybrid BM25 + vector semantic search, a tree-sitter code graph (callers/callees/imports across Rust, TS/TSX, Kotlin, C/C++, Python) with an optional compiler-grade SCIP oracle, queryable git/GitHub history, and typed, source-anchored repo memories (Invariant, Decision, Risk, …) that persist acr
MCP server for Atlassian Jira and Confluence with schema-validated Markdown↔ADF conversion. Catches content-model violations at conversion time rather than silently dropping ADF-only nodes like panels, mentions, and layouts.
Autonomous LLM-powered web crawler with 17 browser tools and goal-driven agent. Single binary, stealth browsing, 25 LLM providers.
Render and verify native Rust GUIs with no display or GPU: render to a typed accessibility tree, query/interact by semantic selector (never coordinates), check contrast/focus-order/hit-target-size, diff screenshots, and watch motion play as a captioned filmstrip. 13 tools. `cargo install fenestra-mcp`.
Gives a coding agent a build → see → interact → debug loop over the native GUI app it is writing: launch the app, screenshot it, read its accessibility tree, inject mouse/keyboard/gestures, tail its logs, and diff frames to confirm a change landed. Drives apps as an external black box with no app integration, so any toolkit or language works. 30 tools with text-first responses (element ids, diffs,
Agent-first intent-based DEX aggregator (self-hosted CoW Protocol). Remote Streamable HTTP at https://mcp.ophis.fi/mcp, no auth, holds no keys. 12 tools: parse_intent (natural-language swap to structured intent), resolve_token (symbol to canonical address, fails closed), list_chains, get_quote, expected_surplus, build_order (bounded, ready-to-sign EIP-712 CoW order with the receiver pinned to the
Self-hosted semantic memory server, served over MCP, for an engineering team's tribal knowledge: the tacit decisions and hard-won reasoning behind the code, captured once and kept queryable for the team and the agents they work with. Postgres-backed (pgvector).
Policy-as-code gate for MCP. A fail-closed proxy that denies risky tool calls before they run, produces offline-verifiable evidence bundles of what executed, and enforces IPv4/TCP egress in-kernel via eBPF/LSM and Landlock on Linux. Deterministic and offline-first.
Ultra-fast web fetcher and MCP server with HTTP/3, JS rendering, anti-fingerprinting, browser cookie auth, and 1Password integration. Fetches any URL as clean Markdown for AI context.
Policy enforcement for AI coding agents derived from existing instruction files (CLAUDE.md, .cursorrules, .windsurfrules, .github/copilot-instructions.md) — no separate YAML to maintain. Rules with prohibitive predicates (`never`, `forbids`, `must_not`) emit `permissionDecision: deny` to block tool calls in Claude Code; advisory rules inject context. PostToolUse is correlated with PreToolUse to pr
Security-hardened MCP server for Linux system administration via 189 typed actions instead of shell strings, with an Ed25519-signed hash-chain audit log, one-time TTL approval receipts, and automatic rollback. Works with Claude Code, Cursor, and Codex CLI.
Windows-native full-disk search over file names, document contents, and OCR'd screenshot text, exposed to AI agents via a read-only local MCP server.
Local guardrail proxy for AI coding agents. Wraps any MCP server (stdio or Streamable HTTP) and blocks destructive tool calls — DROP TABLE, rm -rf, force-push — before they execute. MCP supply-chain protection: TOFU tool-catalog pinning against rug pulls, plus tool-description and tool-result scanning for tool poisoning and prompt injection. 51 starter rules, approval gates, audit logging. Single
German public procurement data (OCDS) — semantic search, tender matching with company profiles, and structured filtering.
Justfile integration that enables LLMs to execute any CLI or script commands with parameters safely and easily, with environment variable support and comprehensive testing.
Hybrid computer-use runtime. Fuses accessibility tree + Chrome DevTools Protocol + vision into structured context with per-element confidence. 4 MCP tools (see/act/think/perceive). Continuous awareness engine (Cortex) with freshness + side-effect detection. Works offline with Ollama + local models.