Search: c
Search MCP servers and agent skills by name, description, category or topic — 4,153 results.
QuantOracledev/quantoracle
63 deterministic quant finance tools for AI agents — options pricing, risk metrics, portfolio optimization, Monte Carlo, technical indicators, crypto/DeFi, and FX/macro. 1,000 free calls/day, no API key.
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.
YGao2005/scholar-feed-mcp
Semantic search over 600k+ CS/AI papers with citation-graph traversal, full-text extraction, embeddings, and BibTeX export. Works anonymously or with a free key. Install: `npx scholar-feed-mcp init`.
imprvhub/mcp-claude-hackernews
An integration that allows Claude Desktop to interact with Hacker News using the Model Context Protocol (MCP).
Arun-kc/schemabrain
Read-only trust layer for Postgres: the agent never writes SQL — twelve tools compile it from definitions you control, PII and secret categories are refused before the query runs, and every call lands in a tamper-evident SHA-256 audit chain.
richer-richard/fenestra
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`.
Archerkattri/mathlas
Airtight math for agents: 3.7M-theorem search, PSLQ constant ID, OEIS, real Lean kernel checks, applicability checklists. No LLM inside, no API key.
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.
frihet/mcp-server
AI-native business management — invoices, expenses, clients, products, and quotes. 31 tools for Claude, Cursor, Windsurf, and Cline.
refined-element/lightning-enable-mcp
Add Bitcoin Lightning payments to MCP-enabled AI agents. Pay invoices, create invoices, check balances, and access L402 paywalled APIs. Supports Strike, OpenNode, NWC wallets.
NAJEMWEHBE/unreal-ai-connection
Drive the Unreal Engine 5.7 editor from any MCP client over a local TCP socket — 105 editor-automation tools (72 native C++ + 33 bridge-side). Native C++ plugin + thin Python bridge, ~50ms round-trips. 498 tests, MIT.
dot-RealityTest/obsidian-codex-mcp
Local-first Obsidian vault MCP server for Codex, Claude Desktop, and other MCP clients. Works directly with markdown files, no Obsidian plugin, API key, cloud service, or running Obsidian app required. Includes read-only mode, backup-on-write, path isolation, and setup examples.
renezander030/agentic-task-system
Turns your task manager into agent memory: hybrid (dense + sparse + keyword, RRF) retrieval over TickTick or an Obsidian vault via a six-method adapter contract. MCP server + CLI, no vector DB to build or maintain. `npm i -g @reneza/ats-cli`
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
edgedelta/edgedelta-mcp-server
Interact with Edge Delta anomalies, query logs / patterns / events, and pinpoint root causes and optimize your pipelines.
faze79/WPFVisualTreeMcp
Inspect, debug and drive running WPF (.NET desktop) apps: visual tree, dependency properties, data bindings and binding errors, DataContext, and screenshots with open popups/menus included, plus clicking, item selection, text input and keyboard shortcuts. Auto-injects into any running WPF process (x64/x86) with no source changes. `dotnet tool install -g WpfVisualTreeMcp`
tomjwxf/scopeblind-gateway
Security gateway that wraps any MCP server with per-tool policies, approval gates, and optional Ed25519-signed receipts. Shadow mode logs every tool call; enforce mode blocks, rate-limits, or requires approval.
quantakrypto/pqc-tools
Post-quantum readiness for AI coding agents: scan code for quantum-vulnerable cryptography (RSA/ECDH/ECDSA/DH), explain the harvest-now-decrypt-later exposure, get NIST ML-KEM/ML-DSA/SLH-DSA (and hybrid) migration guidance, verify fixes, and check dependencies. Content-based/advisory tools only. Run local (`npx @quantakrypto/mcp`) or the hosted OAuth endpoint at [mcp.quantakrypto.com](https://mcp.
bulatko/vk-mcp-server
MCP server for VK (VKontakte) social network API. Access users, walls, groups, friends, newsfeed, photos, and community stats.
AryanBV/pdf-toolkit-mcp
Create PDFs from Markdown with tables and formatting, fill forms, merge, split, encrypt, add QR codes. 16 tools, zero-config, TypeScript-native.
tasopen/mcp-alphabanana
Local MCP server for generating image assets with Google Gemini (Nano Banana 2 / Pro). Supports transparent PNG/WebP output, exact resizing/cropping, up to 14 reference images, and Google Search grounding.
segentic-lab/periscope-mcp
Website & web-app testing built for AI agents rather than raw browser bindings: 66 Playwright tools with hard assertions, auto form-fill, persistent authenticated sessions (incl. interactive login for 2FA/SSO), network mocking, real INP, and accessibility/SEO/GEO (llms.txt, AI-crawler access, WebMCP) + Lighthouse audits.
Sealjay/mcp-hey
Local MCP server for Hey.com email. Read, search, send, reply, and manage the screener via locally cached session from Hey's webview auth.
tlennon-ie/neurodock
Local-first cognitive substrate for neurodivergent professionals: a translator for corporate ambiguity, a planner, and a guardrail that declines to amplify rumination, hyperfocus, or sycophancy. Hosted stateless tools over OAuth.
ckalima/pipedrive-mcp-server
MCP server for [Pipedrive CRM](https://www.pipedrive.com). 155 tools covering deals, persons, organizations, activities, products, projects, tasks, leads, notes, mail, and fields. stdio transport, API-key auth, delete tools gated behind an env flag. Published on npm as `@ckalima/pipedrive-mcp-server`. MIT.
dorukardahan/twitterapi-docs-mcp
Offline access to TwitterAPI.io documentation for AI assistants. 52 API endpoints, guides, pricing info, and authentication docs.
gavelcode/gavel
Code-quality gate for Bazel monorepos: runs lint, coverage and architecture checks off the build graph and returns a pass/fail verdict an agent can request before finishing a change.
smilemin07/korean-rnd-regs-mcp
Natural-language search and review of South Korea's national R&D (research & development) regulations (acts, decrees, and administrative rules), returning the current in-force provisions with citations, fetched live from the official national law database.
imprvhub/mcp-status-observer
Model Context Protocol server for monitoring Operational Status of major digital platforms in Claude Desktop.
Lulu-The-Narwhal/dali-mcp
Scores AI image/video generation prompts (0-100) against 18 models (Veo 3, Sora, Kling, Runway, Seedance, Midjourney, Flux, and more) before you spend a generation credit, then rewrites weak ones. Free, hosted remote MCP + npm/PyPI packages.
Harusame64/desktop-touch-mcp
Windows desktop automation for LLM agents with entity-based actions instead of coordinate-only clicking. Uses UIA, CDP, screenshots, keyboard/mouse/clipboard, and terminal control, plus entity leases, verified delivery, causal context, and interaction memory to reduce silent UI automation failures.
Savvly/savvly-mcp
Savvly Longevity Benefit Fund: retirement projections (lump-sum, monthly, and full trajectory), product comparisons, eligibility checks, and FAQ search. An SEC-registered fund offering market upside plus longevity protection. Remote at api.savvly.com/mcp or `npx @savvly/mcp-server`.
mcpqueen/mcpqueen
The graded MCP registry: live-probes every remote server in the official registry (initialize, tools/list, schema quality, latency, provenance) and publishes evidence-backed grades — searchable by agents via its own MCP endpoint at [mcpqueen.com](https://mcpqueen.com).
humanforai/humanforai-mcp
Hire a real human operator for tasks that need physical presence, perception, or judgment: real-world verification, product testing, AI output review, data collection, and local errands. Remote streamable HTTP at https://humanforai.dev/mcp or local stdio via `npx -y humanforai`.
openpouch/openpouch
Agent-native hosting: deploy any app to a live URL in one command — no account, no dashboard, no CAPTCHA. Full deploy lifecycle as tools (deploy, verify, logs, inspect, rollback, list/delete); production approval stays human-only. Apache-2.0.
datanika-io/datanika-core
Read-only-by-default MCP server for [Datanika](https://datanika.io), the open-source ELT + dbt platform: browse connections, preview data, run and compile dbt transforms, monitor runs, and manage pipelines. 25 tools; opt-in `--allow-write` enables create/trigger.
oddunits/pntr-cli
The official MCP server for PNTR free dev subdomains — register a `*.pntr.dev` subdomain, manage its DNS records, receive email on a disposable inbox, and capture inbound HTTP requests for webhook debugging. Free tier, no key needed to start. Local stdio via `npx @pntr/cli` or hosted endpoint (`https://api.pntr.dev/mcp`, OAuth).
WCAG-Compliance/wcagc-mcp
Deterministic axe-core accessibility scanning (WCAG 2.1 AA, EN 301 549, PDF/UA) through a [wcagc](https://wcagc.com) account: scan any public URL or PDF, crawl a whole registered site, replay saved multi-step journeys, and read violation trends. Returns structured findings — rule, severity counts and the success criteria involved — so the assistant reasons over real results rather than guessing fr
Luminc/peil-mcp
Peil — financial orientation for Dutch freelancers (ZZP'ers): log hours, draft invoices from unbilled time, and ask where you stand — outstanding, overdue, and your net effective hourly rate. Scoped API keys with draft-by-default: putting email in front of a client needs a separate `invoices:send` permission the key can be issued without. `uvx peil-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,
true402/mcp-server
Pay-per-call AI + web + on-chain tools for agents over x402 (USDC on Base) — no accounts, no API keys; the wallet is the identity. 11 tools incl. token rug/honeypot safety (0–100 score, risk band, buy/sell simulation), new-pairs / liquidity-pull / whale-swap signals, SEO/GEO audit, web extract, link preview, robots & security-headers checks, and LLM inference. Tools auto-discover from the live cat
Off-Nadir-Lab/offnadir-delta-mcp
Live, geolocated world-event intelligence and a Daily World Brief for AI agents — query event signals (coordinates, severity, sources), hotspots, and satellite imagery (Sentinel-1/2 etc), plus an OSINT/GEOINT analyst. Streamable HTTP + OAuth; free tier, token-metered.
LLM-Pulse/llmpulse-mcp
Hosted MCP server for LLM Pulse AI visibility analytics, including brand mentions, citations, sentiment, share of voice, recommendations, GEO Writer, Search Console, and AI traffic via a Streamable HTTP endpoint.
cleanor-app/cleanor-mcp
Zero-auth hosted server with 22 read-only tools: optimize/convert images (WebP/AVIF/JPEG), paste-ready SVG QR codes, cited [Cleanor Labs](https://cleanor.app) data on device storage capacity and next-gen image-format savings (AVIF/WebP/JPEG XL vs JPEG, HEIC conversion tax), plus 18 deterministic dev utilities LLMs get wrong (hash, HMAC, UUID, base64, JWT decode, JSON, regex, cron, unit & base conv
serpdive/serpdive-mcp
Web search that returns extracted, answer-ready page content (url, title, date, text) instead of links. A Tavily alternative: same speed, 20.2% fewer tokens, higher answer quality (60.7% of decided duels) on a public replayable benchmark. One tool with automatic localization and an optional synthesized answer. Hosted Streamable HTTP at `https://mcp.serpdive.com`, or run `npx -y serpdive-mcp`.
veezeehq/veezee-mcp
Real-time LinkedIn, X (Twitter) and Reddit data: profiles, companies, posts, search, sentiment. Hosted at mcp.veezee.io with OAuth or self-serve keys.
Bidsketch/signwell-mcp
Official SignWell MCP server for e-signatures. Create document drafts from uploaded files or reusable templates, send them for signing, track status, send reminders, and download completed PDFs; also manages templates and validates text-tag placeholders in PDFs. Requires a SignWell API key. Install: `npx -y @signwell/mcp`.