Free MCP servers · page 150

Search Grants.gov opportunities, SAM.gov contracts, agencies, deadlines, matches, and federal award history.

Search a catalog of practical AI books, read free chapters, and check a claim against the source behind it.

andyliszewski/grounding-ai

Local searchable index of PDFs, EPUBs and Word documents for grounded answers with page and section citations.

Prices, photo tips and a start link for AI growing-up morph videos made from photos across the years.

babelcloud/gru-sandbox

Gru-sandbox(gbox) is an open source project that provides a self-hostable sandbox for MCP integration or other AI agent usecases.

411sst/gst-einvoice-mcp

Convert Indian GST invoices (PDF or scanned) into INV-01 e-invoice JSON, with every value checked against the document plus GSTIN and arithmetic validation.

SECRET4422/guardrail-mcp

Enterprise security and code-safety guardrail for AI agents featuring AST taint analysis, SARIF/SBOM generation, and policy gates.

sascharo/gxtract

GXtract is a MCP server designed to integrate with VS Code and other compatible editors (documentation: sascharo.github.io/gxtract). It provides a suite of tools for interacting with the GroundX platform, enabling you to leverage its powerful document understanding capabilities directly within your development environment.

Search signed scientific claims, methods, provenance, contradictions, retractions, and admission receipts.

dean/HAL

HTTP toolkit providing all 7 HTTP methods (GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS) with secret substitution, comprehensive error handling, and support for JSON, XML, HTML, and form data.

Claim-by-claim AI hallucination detection with sources, agent trajectory verification, and prompt-injection guard.

Order physical engineering work from a Czech company: CAD, 3D printing, fabrication and shipping.

mingdaocloud/hap-mcp

HAP (Super Application Platform) is developed by Mingdao（ https://www.mingdao.com ）The launched APaaS platform helps you build enterprise level applications quickly without coding. This is HAP's MCP (Model Context Protocol) server, used for seamless integration of AI. It enables every zero code application built through HAP to quickly become a tool for agents.

Price your own STL, 3MF or STEP file, or a Printables/Thingiverse model, for UK 3D printing and get a checkout link.

Publish a live website from an agent in one tool call, expiring or permanent, with human review hooks.

Moving cost ranges, reviewed movers, USDOT and Companies House licence checks, guides, and quote requests.

Checks code an agent wrote for secrets, injection risks and declared-vs-real dependency drift before merge.

Free German neighborhood marketplace: search help requests and providers by postal code, post requests and offers.

Vacation rental software: find a host's own booking site, check availability, verify the host-signed stay offer.

Research competitor ads, generate image and video ads, schedule social posts and run paid ad campaigns.

Builder research for Robinhood Chain: which projects are still building and what they shipped, each with its source.

ilyautov/hh-mcp-ru

HeadHunter (hh.ru) API: vacancy search and publishing, applications, invitations, resumes and salary statistics, with a read/write/destructive safety gate.

Read published High Signal daily briefs, signals and their linked evidence through a bounded, read-only public feed.

Search 25+ years of Hong Kong Stock Exchange filings, browse facets and extract document text; read-only.

louiscklaw/hko-mcp

Basic demo of fetching weather from the Hong Kong Observatory.

bartosz-kuc/honest-imgw-mcp

Polish weather and hydrology data from the IMGW-PIB public API, no API key: hourly synoptic observations (get_weather), river levels and flow with a computed normal/warning/alarm status (get_hydro), active weather warnings (get_warnings), and station lists. Queries IMGW directly, no middleman.

bartosz-kuc/honest-nbp-mcp

National Bank of Poland (NBP) exchange rates (tables A/B/C) and gold prices, latest or historical (get_rate, list_rates, get_rate_history, get_gold, get_gold_history), plus convert at NBP mid-rates, e.g. invoices to PLN. No API key; runs locally and calls api.nbp.pl directly with no third-party middleman.

bartosz-kuc/honest-stat-gov-mcp

Polish Central Statistical Office (GUS) Local Data Bank (BDL): browse subjects, search variables and territorial units (voivodeship, powiat, gmina), get unit details, and fetch a variable's time series over a year range. No API key; queries bdl.stat.gov.pl directly with no third-party middleman.

bartosz-kuc/honest-vies-mcp

Validates EU VAT numbers against the European Commission's VIES API, locally with no API key or third-party middleman. check_vat returns validity, name and address where available, and a consultation number as audit proof when you pass your own VAT; list_supported_countries lists the 27 EU states plus XI (Northern Ireland).

Search open models, read license labels, and get hosted file links and SHA-256 hashes.

Wearable and phone prices, specs, compatibility, release dates and sourced reports for buyers.

TOBYCAI/image-mcp

Offline image processing: resize, crop, convert, compress, rotate, flip, thumbnails, watermarks, effects, placeholders and overlays.

Find the right free in-browser image tool for a job (background removal, upscaling, compression) in 40 languages.

Search an agent-first directory of agent tools, MCP servers, skills, protocols and APIs; no key needed.

Compare LLM API prices across 150+ providers: cheapest offer, price history and cost estimates.

Look up 20,000+ AI tools: prices and their history, APIs, and each vendor's MCP server measured daily.

124+ deterministic formulas for IP, relief from royalty, MPEEM, purchase price allocation and impairment.

Generate and edit videos from a prompt.

Validate e-invoices: ZUGFeRD, Factur-X, XRechnung and Peppol BIS, with a detailed validation report.

Unofficial: search the Ionic Framework docs for v8 and v9, with the component API and usage examples.

Checks if an IP is residential, datacenter or proxy, and whether ChatGPT, Claude, Gemini or Muse support its region.

Search proxy setup guides, generate proxy configs and diagnose proxy errors.

Look up ISO 20022 messages, bank transaction codes, legacy replacements like MT103, scheme use, and external code sets.

Manual-review external execution in Japan for AI agents; physical verification is the first verified execution path.

whynowlab/jarvis-orb

Four-tier memory (episodic, semantic, project, procedural) with temporal scoring, contradiction detection, entity tracking and a desktop visualization orb.

Fonts, font recognition from images, palettes, color math and contrast, code and SVG tools for design work.

Check an invoice payment before an agent pays: IBAN, supplier bank change and Peppol; five tools need no account.

Search open jobs in Switzerland and Liechtenstein and read job details.