ysalitrynskyi/opn-mcp C MCP Server Active
Shorten links, read click analytics, generate branded QR codes, and manage links on opn.onl — the open-source, self-hostable URL shortener. Works with the hosted service or your own instance.
Browse all Model Context Protocol servers with quality scores, stars, languages and maintenance activity.
Shorten links, read click analytics, generate branded QR codes, and manage links on opn.onl — the open-source, self-hostable URL shortener. Works with the hosted service or your own instance.
Workflow tools for US federal contractors — go/no-go bid scoring, incumbent intelligence (USAspending + FPDS), teaming-partner search, recompete prediction, Navy NECO lookup, and SAM.gov solicitation retrieval. Returns synthesized decisions rather than raw data.
Safety first. Hardware-verified DeFi for AI agents — designed for when the AI can be compromised. The agent proposes, you approve on your Ledger. Read balances + DeFi positions (Aave V3, Compound V3, Morpho Blue, Uniswap V3 LP, Lido, EigenLayer, MarginFi, Kamino) and prepare transactions across Ethereum / Arbitrum / Polygon / Base / TRON / Solana / Bitcoin; private keys never leave the hardware wa
Drive the [Dolphin](https://dolphin-emu.org) GameCube/Wii emulator from any MCP client: read/write PowerPC memory (MEM1/MEM2), GameCube + Wii Remote input (buttons, IR pointer, accelerometer, MotionPlus), reset, save/load state, and frame advance. Python bridge inside [Felk's scripting fork](https://github.com/Felk/dolphin) + Node MCP server.
LEGO sets, parts, minifigs, colours, and inventories from Rebrickable. 10 tools for searching sets, finding parts by colour, browsing themes, comparing sets, and discovering MOC alternate builds. 26k sets, 62k parts, 17k minifigs embedded.
A brewing knowledge MCP server with beer styles (BJCP 2021), 113 hop varieties, malts, yeasts, water profiles, off-flavour diagnosis, recipe suggestions, and food pairings.
Local-first persistent memory for AI coding agents. Captures facts, decisions, patterns, and architecture notes in SQLite (with optional cloud embeddings) to reduce repeated context across sessions.
Sweepstakes management platform with 70 MCP tools for legally compliant promotions in the US and Canada. Manage participants, official rules, winner drawings, entry pages, billing, and more. Requires a [Sweeppea](https://www.sweeppea.com/) subscription.
HTTP uptime monitoring, heartbeat (dead-man's switch) monitoring, cron job scheduling, and email verification. Single API key, per-tool quota tracking. Install: `go install github.com/tickstem/mcp/cmd/tsk-mcp@latest`.
Search 1M+ enriched job listings from 20,000+ companies. Filter by skills, salary, location, seniority, remote type, and more. Free — 500 calls/day, no signup required. Also available as a remote MCP server at `https://mcp.jobdatalake.com`.
Convert any URL into clean, agent-ready Markdown with structured metadata (title, byline, published date, language). Pay-per-use via x402 (USDC on Base) — no signup, no API keys. Single tool `read_url`. Install via `npx -y skim-mcp`.
Resolves a company domain or name to its LinkedIn company URL with confidence scoring and firmographic metadata.
Honeypot threat intelligence for AI agents: 90 days of probe data from a sensor network for IP reputation, scanner classification, CVE probing trends, and JA4/JA4H/HASSH fingerprints. Remote MCP, free tier.
Translation quality evaluation using xCOMET models. Provides quality scoring (0-1), error detection with severity levels (minor/major/critical), and optimized batch processing with 25x speedup.
Job search for AI agents. Search tech companies by their real tech stack, star the ones that fit, and pull jobs from your shortlist. Profile, applications, and digests over MCP. Free tier.
Pay-per-call x402 gateway: one MCP server for 90+ agent tools (utilities, DNS/WHOIS, blockchain RPC, market data, prediction markets, DEX data, security audits) plus an OpenAI-compatible LLM gateway. USDC on Base, free-trial calls per agent. `pip install ddg-agent-services-mcp` or remote `https://mcp.daedalusdevelopmentgroup.com/mcp`.
Agent-to-agent capability exchange (MeshMarket): agents browse keylessly, self-onboard via mesh_signup, rent memory/reasoning/safety per call, list their own tools with mesh_publish, and settle in closed-loop credits on a debit-first ledger.
Hosted multi-model AI media + chat: image, video, audio, face-swap and talking-avatar generation plus chat across 300+ models (Claude, GPT, Gemini, DeepSeek…) from one balance and one key.
TokenLab AI gateway MCP server for model and pricing discovery, OpenAI-compatible Chat Completions, and native Responses, Anthropic Messages, and Gemini inference. Catalog tools require no API key; inference tools use an optional TokenLab key.
Collection of MCP servers for Japanese SMB SaaS that have no official MCP (KING OF TIME, SmartHR, kaonavi, Smaregi, LINE Lstep, CloudSign, and 30+ more). Each connector is an independent pip-installable package.
A ready-to-clone Rust MCP server that calls Anthropic's Claude API via the crimson-crab SDK. Exposes an `ask_claude` tool. MIT/Apache-2.0.
Local MCP adapter/server for browser-only image workflows. Resize, compress, convert, remove backgrounds, strip metadata, watermark and export image packs through QuokkaPix without uploading source images to a processing server. `npx quokkapix-mcp`
Music metadata search over 90M+ tracks, artists, labels, and releases: genre, release dates, ISRC/ISWC codes, and cross-platform IDs (Spotify, Apple Music, Tidal, Beatport, Discogs, MusicBrainz, YouTube). `npx -y sonovault-mcp`
Conversational Spotify control with intent-shaped tools: play by description, queue, devices, playlists, and library, plus a 2-minute PKCE setup wizard. Built for the post-Feb-2026 Spotify Web API. `npx -y @xavifabregat/spotify-mcp`
Catch bad animations before they ship. 13 deterministic checks on the live page (duration, easing, stagger, exits, reduced-motion, touch-gated hover) with no API key or LLM, plus optional vision-LLM UX review across viewports. Install via NPM: `npx -y motionlint mcp`
Agent-native UI/UX design validation: model user journeys as state machines and prove what AI-generated screens are missing (unreachable states, missing empty/loading/error states, WCAG contrast, touch targets, localization overflow) before code exists — then verify the code implements the contract. Deterministic CI gates (`uxloom check`, `uxloom audit`), one-command setup (`npx uxloom init`).
A stateless, deterministic Bio-Robotics Core Engine converting biological data (UniProt API) to Cartesian G-code coordinates using the Model Context Protocol. 🐍 🏠 🍎 🪟 🐧
Condition-aware ingredient, product & supplement safety for agents, with provenance on every answer — a verdict, an evidence tier (Gold/Silver/Bronze), and a verifiable citation — across breastfeeding, pregnancy, histamine/MCAS, rosacea, HS, allergy and fertility lenses. 9 tools incl. validate_claim (fact-check a claim against curated cited sources) and check_recall (FDA/consumer recall lookup by
The MCP server behind [Constat](https://constat.dev): FDA & NHTSA regulatory-risk intelligence for agents — device compliance risk by 3-letter product code, parsed 510(k) premarket evidence with verbatim source quotes, predicate chains, postmarket drift signals, clearance-to-payment reimbursement pathways (NTAP/CPT/CMS), and NHTSA vehicle safety. 14 tools. Decision support, not regulatory advice.
Fetch any web page's HTML (or AI-parsed JSON, or Google results) through the ScrapeUnblocker anti-bot API (Cloudflare, DataDome, PerimeterX, Akamai, Shape), using your own API key. Three tools: `fetch_html`, `fetch_parsed`, `google_search`. Install: `npx -y scrapeunblocker-mcp`.
Governed Nutanix Prism Central v4 operations — cluster, VM (AHV + ESXi), storage, networking, snapshot/DR, alerts, and LCM (51 tools) with unbypassable audit logging (MCP + CLI), budget/runaway guards, dry-run, and undo/rollback.
Manage a 5dive agent fleet from any MCP client: file tasks, message and inspect agents, and read the fleet digest. Thin adapter over the 5dive CLI.
Native Gmail MCP server with full mailbox control — search, read, label, archive, trash, download attachments, and the feature no other Gmail server ships: snooze threads until a date. Every call hits the live Gmail API (no synced index that silently misses mail). Install with `npx -y mailwarden`.
Pair two AI coding agents on different machines over an end-to-end-encrypted channel: files and messages travel through a relay that only ever sees ciphertext - it can never read your data - authenticated by a short code shared out-of-band, with human consent before any file is written. Install with `npx covalent-bond`.
WhatsApp notifications for AI agents with zero setup — no Meta account, no templates, no dashboard: text "join", get an API key, send in 60 seconds (`uvx pingwa mcp` or remote at pingwa.dev/mcp). Two-way: `ask` with tap-to-answer buttons, `check_replies`. Official Meta Cloud API — won't ban your number.
Email (IMAP/SMTP), mail filters (Sieve), calendar (CalDAV), contacts (CardDAV), and free/busy scheduling for Open-Xchange and standards-based mail platforms. Published on the official MCP Registry.
Disposable email inboxes for AI agents — OTPs and magic links auto-extracted from verification emails. Test signups and auth flows, no signup needed.
Inspect and operate Redis-backed job queues (Asynq and BullMQ): per-state counts, job detail with decoded payload and last error, and faithful retry/delete running each library's own scripts. Read-only mode for production.
Reduced-motion / WCAG 2.2.2+2.3.3 verification for web animation: agents author validated specs; a deterministic compiler emits reduced-motion-safe, on-budget CSS. Keyless hosted endpoint (motion_catalog, motion_validate).
Native stdio bridge for the hosted Delx Protocol MCP endpoint, with one-command client install, doctor checks and live tool discovery.
Design-fidelity checks for AI agents: compare a Figma frame (or any design screenshot) against the rendered implementation and get structured discrepancies with CSS properties and severity. Resolves a natural-language component description to a URL + selector in your codebase, screenshots it with Playwright, and compares via vision AI using your existing Claude Code or Codex subscription — no API
Deterministic slop detector for AI-generated prose. Flags filler phrases and clichés with zero false positives by design (curated phrase list, not a model), returns exact spans plus a pinnable 0-1 score, and runs offline with no API key. CLI + CI exit code + MCP server for agents to self-check their own output before it lands in a PR or doc. `pip install defluff`
Operator leaderboard measuring users, not models — ranks AI coding operators by token cascade efficiency (Yield = Cache Reads × Output / Input²). 15 MCP tools: rank, pull, submit (ed25519-signed), diagnose, simulate. Privacy-first: only token counts leave the machine. `npx sigrank`
MCP server for [quelllm.fr](https://quelllm.fr) — open-weights LLM catalog (250+ models with params, VRAM by quantization, tokens/sec, license). Tools: `list_models`, `get_model`, `compare`, `estimate_vram`, `estimate_cost` (API providers vs self-hosted hardware in EUR), `search_models`. Useful when picking a local model that fits your GPU/Mac.
Schema-first PDF→JSON MCP for AI agents (0xPdf API). Define a JSON schema, parse invoices/forms (OCR optional), manage schemas, and poll async jobs. `uvx oxpdf-mcp` · [docs](https://0xpdf.io/docs#mcp) · [playground](https://0xpdf.io/samples)
Convert PDF ⇄ Word, Excel, PowerPoint, JPG, HTML, Markdown, EPUB and PDF/A, plus merge, split, compress, watermark, sign, and protect PDFs, and convert images (HEIC, WebP) — 35+ tools from convertica.net. Zero-config via `npx convertica-mcp`.
Deploy files from AI agents to your own FTP/FTPS/SFTP servers — multi-server config, recursive deploy with dry-run and gitignore-like excludes, per-server path jail and read-only mode, FileZilla import, one-command setup for popular MCP clients.
Agentic payments on Solana: let an agent discover x402-priced endpoints, pay HTTP 402 paywalls in USDC, manage pre-paid balances and subscriptions, and buy datasets or settle store checkouts — 15 tools behind fail-closed spending caps ($1 per payment, $10 per day by default). Non-custodial: payments lock in a program-owned escrow and release 99% to the creator. Listed on the official MCP registry