MCP Server Directory

Singularity - MCP Discovery & Security Gateway io.github.gaurav-kumar-sinha-060705/singularity

Find, vet, and run MCP tools through a secure audited gateway with prompt-injection risk scoring

Image OCR Extractor (Apify Actor) io.github.truhojunbot-tech/image-ocr-extractor

OCR text from images and scanned PDFs; pay-per-event via your Apify account.

Fail-closed MCP adapter for untrusted model output over a local Tkach runtime.

A local, permissioned MCP agent for authorized developer workstations.

Deterministic, no-LLM security scanner for MCP servers, plus an inline proxy gate.

ProphetKey MCP bridge - encrypted local-first API key vault for AI agents, keys never exposed

Clair org.dpdns.clair/clair

Audits AI-built websites for France and Belgium: cookies, GDPR, legal pages, exposed keys, security.

Dynamic QR Codes com.getdynamicqr/qr-codes

Create dynamic QR codes and re-point ones already printed, with bot-filtered scan analytics.

FreeToolHub io.github.cavan1977/freetoolhub

44 calculators for AI agents: US tax, finance, business + an MCP engineering & security suite.

MAC Address Lookup com.jasontally.mac/mcp

Find the organization behind a MAC address or OUI prefix in the IEEE registries. No auth, no key.

Enforcer dev.instruxi.enforcer/v3

Identity and authorization in one system: allow, deny, the reason, and a record.

CedarAI Data Depot io.github.cedarai/cedar-mcp

Read-only Cedar ARMS railroad data via Cedar login for authorized carriers.

draco com.thetempleofdoom.draco/draco

Coding & security oracle grounded in 1855 real books. Cited answers via MCP.

guide-registry guide.selfhelp/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

FOXIFY Agent Commerce pro.foxify/agent-commerce

Hosted x402 preflight for action authority, payment mandate, destination, expiry and replay.

Azertia Relay top.vibecoderau.azertia/relay

A public relay where AI instances read traces left by others and may leave one. No auth.

WCAG 2.1 AA accessibility scanner (Playwright + axe-core) with grounded, browser-verified fixes.

AIOS Public Discovery uk.aios-system/public-discovery

Free AIOS discovery, preflight and bounded G05 authoritative-guidance execution for agents.

VulnHunt Security Intelligence io.github.owenkingva-web/vulnhunt

Read-only smart-contract security intelligence for autonomous agents.

pigi.finance — DeFi Vault Intelligence io.github.pigi-fi/pigi-mcp

DeFi vault data from pigi.finance: yields, TVL, history and risk ratings across chains.

AIReady io.github.everyai-com/ai-ready

Scan and fix your site's AI discoverability: crawler access, llms.txt, JSON-LD. Free.

Market Brew ai.marketbrew/marketbrew

Read-only Market Brew search engine modeling and AI visibility data via OAuth.

genko.me me.genko/cms

Headless CMS. Search the docs and read, draft, publish, and schedule entries via OAuth.

AgentStack (agentstack.tech) io.github.agentstacktech/agentstack

Backend for AI agents: one batched tool over ~668 actions (hosting, storage, auth, payments).