Search: oss
Search MCP servers and agent skills by name, description, category or topic — 469 results.
Tubo2333/obsidian-knowledge-brain
Cross-session knowledge memory and rule evolution for AI coding agents
delimit-ai/delimit
API governance server that detects breaking changes in OpenAPI specs. Diffs two spec versions, applies configurable policy rules (strict/default/relaxed), and returns structured pass/fail verdicts. 23 change types, 10 breaking. Supports OpenAPI 3.0, 3.1, and Swagger 2.0.
tooluse-labs/perfetto-mcp-rs
MCP server for [Perfetto](https://perfetto.dev) trace analysis. Runs PerfettoSQL queries on `.perfetto-trace` / `.pftrace` files via auto-downloaded `trace_processor_shell`, with dedicated Chrome tools for page loads, scroll jank, main-thread hotspots, and stdlib module discovery. Cross-client tested on Claude Code and Codex. Available via `cargo install`, Homebrew tap, and curl install script.
buildepicshit/Wick
Native C# MCP server for Godot Engine — 53 tools across 5 pillars: Roslyn-enriched exception telemetry, scene tree inspection, C# symbol navigation, MSBuild orchestration, and GDScript analysis. .NET 10, TCP JSON-RPC bridge, 219 tests.
Sidd27/infrawise
Cloud infrastructure analysis for AI coding assistants — detects IaC drift, missing indexes, security gaps, and performance anti-patterns across AWS services and databases. 13 tools, works with Claude Code and Cursor.
cameronrye/activitypub-mcp
A comprehensive MCP server that enables LLMs to explore and interact with the Fediverse through ActivityPub protocol. Features WebFinger discovery, timeline fetching, instance exploration, and cross-platform support for Mastodon, Pleroma, Misskey, and other ActivityPub servers.
viventine-space/orbit-sentinel-mcp
Search 419,000+ space regulatory filings from FCC, ITU, UNOOSA, and FAA — semantic search, entity dossiers, spectrum holdings, launch licenses, and filing alerts, powered by [Orbit Sentinel](https://viventine.com/orbit-sentinel/). `brew install --cask viventine-space/tap/orbit-sentinel-mcp`
subsquid-labs/portal-mcp-server
Query onchain data across EVM, Solana, Bitcoin, Substrate, and Hyperliquid via the SQD Portal API; hosted Streamable HTTP endpoint or local stdio.
ENTIA-IA/entia-mcp-server
Verified business-identity intelligence for AI agents & MCP clients — company verification, VAT, BORME, GLEIF, ownership and risk signals across 34 countries. Remote MCP server, free tier. `npx mcp-remote https://mcp.entia.systems/mcp`
andresdefi/zerodust
Sweep an agent's native gas balance to **exactly zero** on 25+ EVM chains via EIP-7702 sponsored execution — a relayer pays the gas and is reimbursed from the sweep, so nothing is left stranded. Same-chain or cross-chain. Read-only by default; sweeping is opt-in and destination-allowlisted, so a prompt-injected agent still cannot redirect funds. `npx @zerodust/mcp-server`
SagaPeak/artifacta-mcp
The artifact store for AI agents. Every output your agents produce — persisted, retrievable, shareable. Across runs, sessions, and tools. Session/agent metadata, content-hash dedup, expiring share links; 11 tools with path-confined uploads and destructive actions gated by default. TypeScript (`npx @artifacta-mcp/mcp`) and Python (`pipx run artifacta-mcp`).
codefuturist/email-mcp
IMAP/SMTP email MCP server with 42 tools for reading, searching, sending, scheduling, and managing emails across multiple accounts. Supports IMAP IDLE push, AI triage, desktop notifications, and auto-detects providers like Gmail, Outlook, and iCloud.
20alexl/claude-engram
Persistent memory and session intelligence for Claude Code. Auto-tracks mistakes, decisions, and context via hooks. Mines session history for patterns and cross-session search. Loop detection, pre-edit warnings, context compaction survival. Runs locally with Ollama.
mnemoverse/mcp-memory-server
Hosted memory that learns and forgets — feedback re-ranks what helps, recall fades by recency, similar memories consolidate. One key across Claude, Cursor, VS Code & ChatGPT.
smigolsmigol/llmkit
AI API cost tracking and budget enforcement across 11 LLM providers. 6 tools for spend analytics, budget monitoring, session summaries, and key management.
MohamedAbdallah-14/prompt-to-asset
Generates app icons, favicons, OG images, logos, and wordmarks. Routes each request across 30+ image models. Runs without an API key via Cloudflare Workers AI, NVIDIA NIM, HuggingFace, or Stable Horde. Three modes: inline SVG, external prompt-only, or full API. Validates contrast, OCR text accuracy, and palette before returning.
PsChina/deepseek-as-subagent
Run DeepSeek as a real sub-agent inside Claude Code / Codex CLI. DeepSeek gets its own 7-tool agent loop (Read/Write/Edit/Bash/Glob/Grep/NotebookEdit) in a sandboxed workspace, not just a single LLM call. Includes token-based command sandbox, pre-flight web-search pattern, and cross-platform installer.
AliceLJY/recallnest
Persistent memory MCP server for AI coding agents (Claude Code, Codex, Gemini CLI). Hybrid retrieval (vector + BM25), cross-encoder reranking, knowledge graph with PPR traversal, session checkpoint/resume, and multi-scope isolation. Local-first with LanceDB + SQLite, zero external dependencies.
sametbrr/llm-wiki-manager
Persistent LLM-managed personal wiki — the model writes, cross-references, and maintains the knowledge base while you curate sources. Implements Karpathy's LLM Wiki pattern with 8 operating modes.
robhunter/agentdeals
1,500+ developer infrastructure deals, free tiers, and startup programs across 54 categories. Search deals, compare vendors, plan stacks, and track pricing changes. REST API and web browser at [agentdeals.dev](https://agentdeals.dev).
Wynelson94/longhand
Persistent local memory for Claude Code. Indexes every session JSONL verbatim into SQLite + ChromaDB for semantic recall (~126ms) across your entire history. Never summarizes, zero API calls, 17 MCP tools including fuzzy `recall`, deterministic `replay_file`, and git-aware `recall_project_status`. Published on PyPI as `longhand` and registered in the MCP Registry.
STiFLeR7/memex
Developer context continuity system. Watches your git repos and builds a temporal knowledge graph of modules, symbols, decisions, and open problems via Graphiti + Neo4j, then serves it to any AI coding agent over MCP. Every edge carries a validity window and a confidence score that decays over time. 12 tools across read and write. Install via `npx -y stifler-memex-mcp`. MIT licensed.
street1983nk/infranode
Keyless remote MCP server for German public infrastructure open data: weather, air quality, traffic, public transit, parking and roadworks across 84+ German cities (DWD, Umweltbundesamt, Mobilithek, GovData). 38 read-only tools.
cq27-dev/rag-rat
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
spanlens/Spanlens
Query your Spanlens LLM observability from any MCP client. 7 read tools for request logs, agent traces, cost stats, anomalies, model-savings, and per-user analytics across OpenAI, Anthropic, and Gemini. Open source, self-hostable. `npx -y @spanlens/mcp-server`
drumst0ck/uploadkit
Official MCP server for [UploadKit](https://uploadkit.dev). Gives AI assistants first-class knowledge of 40+ React upload components, Next.js route handler scaffolds, BYOS setup (S3/R2/GCS/B2), and full-text search across 88+ docs pages. Runs locally via `npx -y @uploadkitdev/mcp`.
rafsilva85/credit-optimizer-v5
Save 30-75% on Manus AI credits through intelligent model routing, smart testing, and context hygiene. Audited across 53 scenarios with zero quality loss.
jagoff/memo
Local-first semantic memory server with hybrid search, plain Markdown storage, MLX or CPU embeddings, contradiction detection, time-travel history, synthesis, and cross-machine git sync.
n24q02m/mnemo-mcp
Persistent AI memory with SQLite hybrid search (FTS5 + semantic). Built-in Qwen3 embedding, rclone sync across machines. Zero config, no cloud, no limits.
fixed-width/glass
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,
Apex-Foundation/copilot-mcp
Web3 founder diligence stack: smart contract audit (Solidity via Slither, Rust via cargo-audit) with file/line findings, jurisdiction matching across 28 crypto-native domiciles, VC fund discovery with thesis matching, portfolio comparison against 47 accelerator companies, project scoring across team/traction/tokenomics/market/security, hackathon search, Twitter audience audit.
Brand-System/brandsystem-mcp
Make your brand machine-readable. Extract brand identity (colors, fonts, logo, voice, visual rules) from any website via static CSS + rendered-page extraction, compile into DTCG tokens, brand runtime contracts, and interaction policies. 34 tools across 4 progressive sessions. Subscribable `brand://runtime` and `brand://policy` MCP resources. Content compliance scoring (0-100), pass/fail gate, and
dugubuyan/agent-nexus
Service-boundary-aware document exchange center for coordinating heterogeneous LLM code agents. Versioned Markdown store, pub-sub notifications, diff-aware updates, and lifecycle stage tracking. Each service registers as a sub-project; agents subscribe to cross-service document changes and receive structured diffs via MCP.
debitura/Debitura.MCP
Cross-border debt collection: check case status, read partner messages, get pricing, and submit collection cases handled by vetted local partners in 183 countries.
predictionmarketspicks/mcp
Quant tools + an NFL fantasy draft assistant for AI agents — Kalshi & Polymarket EV, edge, ADP. 22 tools: expected value, Kelly sizing, Bayesian updating, odds conversion, base-rate gaps and a same-game combo builder, plus a full fantasy draft board (ADP, best-available, player outlook, sleepers) — all free, no key. Pro adds cross-platform gap scanning, macro pulse, commodity and NFL edge models,
hermoso-ai/hermoso
AI ad studio for agents: generate finished video, image, and UGC avatar ads for any brand (script, voiceover, music, brand end card), and research competitor ads across the Meta, Google, and LinkedIn ad libraries plus TikTok/Instagram/YouTube organic. 52 tools. Install: `npx -y hermoso mcp`, or connect to the hosted endpoint at `app.hermoso.ai/mcp`. Free signup grant, no card.
VeriTeknik/pluggedin-mcp-proxy
A comprehensive proxy server that combines multiple MCP servers into a single interface with extensive visibility features. It provides discovery and management of tools, prompts, resources, and templates across servers, plus a playground for debugging when building MCP servers.
TT-Wang/forge
Structured planning, parallel execution in git worktrees, and deep validation for Claude Code. Turns a one-line objective into a validated DAG of modules executed by worker agents, each self-checked and cross-module-reviewed before merge-back. 7 MCP tools: `validate`, `validate_plan`, `memory_recall`, `memory_save`, `iteration_state` (per-run scoped, with stagnation/velocity/oscillation detection)
Markgatcha/universal-mcp-toolkit
A universal MCP aggregator toolkit that connects AI agents to multiple MCP servers through a single unified configuration. Features ready-made templates, cross-repo prompt workflows, and an npm package for zero-config installation.universal MCP aggregator toolkit that connects AI agents to multiple MCP servers through a single unified configuration. Features ready-made templates, cross-repo prompt
virtualsms-io/mcp-server
Receive SMS verification codes with AI agents. Get virtual phone numbers for WhatsApp, Telegram, Google, and 500+ services. Own modem infrastructure across 200+ countries with real-time WebSocket delivery. 12 tools for number discovery, purchase, and code extraction.
conversation-handoff-mcp
Hand off conversation context between Claude Desktop projects and across MCP clients. Memory-based, no file clutter.
NicolasPrimeau/artel
Self-hosted coordination layer for AI agent fleets. Shared semantic memory, tasks, agent-to-agent messages, session handoffs, and a background archivist that synthesizes cross-agent knowledge. Any HTTP client participates — Claude Code, AutoGen, raw scripts.
rbmuller/scherlok
Zero-config data quality monitoring across Postgres, BigQuery, Snowflake, MySQL, and DuckDB. Profile a warehouse, detect anomalies (volume, schema drift, freshness, NULLs, distribution, cardinality), with optional dbt manifest lineage. Read-only — connection resolved server-side, never passed via the model.
cameronrye/gopher-mcp
Modern, cross-platform MCP server enabling AI assistants to browse and interact with both Gopher protocol and Gemini protocol resources safely and efficiently. Features dual protocol support, TLS security, and structured content extraction.
yessGlory17/job-verify
Check whether a recruiter or job offer is a scam before you reply. Extracts entities (company, links, email, phone, wallets) from a pasted message and cross-checks company registration, domain age, look-alike/typosquat domains, phishing & malware blocklists, email deliverability, crypto-scam databases, and Internet Archive history — free OSINT, no API keys.
AstaBlackClove/posthive
Schedule and manage social media posts across 13 platforms (Bluesky, Threads, Instagram, LinkedIn, Mastodon, YouTube, Facebook, Pinterest, Telegram, Nostr, X/Twitter, Discord, Tumblr). OAuth 2.0 + PKCE, 10 tools, draft-first workflow.
hypurrquant/perp-cli
Multi-DEX perpetual futures trading MCP server for Pacifica (Solana), Hyperliquid (HyperEVM), and Lighter (Ethereum). 18 tools for market data, trade execution with dry-run safety, funding rate arbitrage scanning, portfolio analytics, and cross-exchange comparison.
kagan-sh/kagan
AI-powered Kanban TUI and MCP server for autonomous development workflows. Orchestrates 14 coding agents across task tracking, isolated git worktrees, review, and merge.