MCP Server Directory

Prime checks, factors, GCD, and basic statistics computed locally. No network and no key.

Fruit nutrition data: calories, sugar, fat and carbs per fruit, with lookup by name and nutrient

Delinea Secret Server API: secrets search and retrieval.

Search Java libraries and artifacts on Maven Central. No key required.

Bounty Operator io.github.bountyoperator/bounty-operator

Argues against a security finding or a draft bug bounty report before you submit it.

Unofficial MCP server for the Lexware Office accounting API — runs over stdio or HTTP.

UnicodeKit io.github.mamuso/unicodekit

Find Unicode characters by name, codepoint, or meaning, and get their HTML, CSS, and UTF codes.

The full Helm CLI surface as 46 MCP tools, backed by the Helm v3 and v4 Go SDKs.

IP geolocation from freeipapi.com for any IPv4 address. No key required.

Decision lock, anti-hallucination, meta-evolution and provenance for any MCP agent. 55 tools.

threatcluster io.github.Jam0k/threatcluster

Live threat intel for agents: incidents, actors, CVEs with KEV/EPSS, ransomware leak-site victims.

UK sort code 6-digit shape, value discarded io.github.sadri-dridi/sortcode-ok

UK sort code 6-digit shape, value discarded

Record a flow through your app, check it after every change, and attack a copy of your database.

Knoww io.github.metatxn/knoww

Read-only Polymarket search, market details, order books, price history, and market cards.

Whether current UTC month is a solstice month io.github.sadri-dridi/solstice-ok

Whether current UTC month is a solstice month

Build chords and scales from note names locally. No network and no key.

Keyless MCP server for Open Targets: gene/disease/drug search, target details, disease associations.

Foresee what git commands and multi-step changes will do, as calibrated probabilities

Data Breach Notification Deadlines io.github.Nero-Engine/breach-notification-deadlines

Who to notify after a data breach and by what date: all US states, SEC, HIPAA, GDPR, UK. Sourced.

Web Intel (x402) io.github.mcpspro/web-intel

Pay-per-call web extraction, SEO audits and text analysis. USDC on Base via x402, no API keys.

Windows network and proxy diagnostics: GitHub reachability, proxy ports, DNS/TCP, and fixes.

MCP server for Pfeiffer Vacuum TPG 361/362/366 and TPG 261/262 gauge controllers.

Audit local test structure using aggregate as MCP: real tools for real work.

Control and debug Firefox: navigate, fill forms, inspect network and console, profile.