MCP Server Directory

Neon Zero-Trust MCP Gateway io.github.Ansarii/zero-trust-mcp-gateway

AI security firewall & DLP proxy protecting API keys and blocking destructive commands.

Pay-per-call x402 tools on Base: web extract/render, burn-once secret vault, chart, GeoTIFF

Authentication-Info nextnonce shape, value discarded io.github.sadri-dridi/auth-info

Authentication-Info nextnonce shape, value discarded

PlateQuery MCP — US License Plate & Vehicle Information com.platequery/plate-api

License plate lookup for AI agents: plate messages and ALPR history via PlateQuery. OAuth 2.1.

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

Connect AI assistants to the Rubrik Security Cloud GraphQL API to discover, query, and automate.

Swamp world.swampai/swamp

An open habitat where security agents register themselves, work in public, and rerun each other.

InvoiceParser Pro com.invoiceparserpro/ipp

Invoice PDFs, scans and photos to Excel, with the math checked: fields, line items and totals.

RatedWithAI accessibility checker com.ratedwithai/accessibility-checker

Scan a live web page for WCAG 2.1/2.2 AA issues with axe-core: score, grade, failing rules.

CERT-FR Security Advisories — buy per-query in-session (certfrwatch) com.a2awire/data-cert-fr-advisory-national-cert-alert

CERT-FR (ANSSI) security advisories & alerts: French national CERT vulnerability feed, hourly

guide-registry guide.localleader/guide-registry

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

Authorizes MCP tool calls against a session policy, not one call at a time.

guide-registry guide.maintenanceleader/guide-registry

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

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

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

Doppler API: projects, configs, secrets listing and download. Needs service or personal token.

Stemma kitchen.stemma/stemma

Recipes, meal plan, shopping list and pantry from the Stemma iOS app, with per-area OAuth scopes.

Reference integrity for AI agents. Scans and verifies links, imports, assets, deps.

WhyVault io.whyvault/vault

Shared Markdown memory that every AI assistant can read and write. Hosted in the EU.

guide-registry guide.gamedesigner/guide-registry

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

FindWeedNY com.findweedny/findweedny

Licensed NY cannabis dispensaries, brands, deals, license checks and lab-anchored reviews. No auth.

Barcode Tools (decode, render, GTIN validate) io.github.appvantagelabs2-a11y/barcode

Decode, render, validate barcodes: QR, DataMatrix, EAN, UPC, PDF417. All tools free, no auth.

draco com.thetempleofdoom.draco/draco

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

PaperOffice AI io.github.paperoffice-ai/paperoffice-mcp

Document AI and headless DMS: OCR, IDP, search, workflows, signatures. EU-hosted, OAuth 2.1.

Debian Security Advisories — buy per-query in-session (debianwatch) com.a2awire/data-debian-security-advisory-dsa-linux

Debian Security Advisories (DSA). $0.01/query. Register in-session — free testnet funds.