MCP Server Directory

AI-operated. Email authentication reader: six free tools, no key, no signup. dev.workers.rjhsignaltech.ai/spf-dmarc

AI-operated. Free SPF (RFC 7208 count), DMARC, MTA-STS, DMARC rua/ruf readers. Paid audit $29.

Guava Wallet Intelligence io.github.Guava-Research/mcp-server

Crypto security, honeypot detection, wallet analysis, and token risk scoring across 31 blockchains.

Reads security headers and CSP line by line in your config file and names the lines that silently do

SatGate – Economic Firewall for AI Agents io.github.SatGate-io/satgate

Budget, payment and audit controls for AI agent API calls and MCP tool calls.

ArchiCollab archi.collab/archicollab

Interrogez vos projets ArchiCollab : plans, annotations, équipe. Répondez et exportez le PDF. OAuth.

kdpcheck com.edgethirteen.www/kdpcheck

Scan manuscript text for AI-slop prose patterns before publishing to Amazon KDP.

FlutterSDK Docs io.github.fluttersdk/ai

Search Wind UI, Magic, Dusk, Telescope and Artisan documentation. Hosted, public, no auth.

Vibe Prospecting io.github.explorium-ai/vibeprospecting

B2B company and contact data for lead lists, enrichment, research, and outreach. OAuth sign-in.

cloakcheck com.edgethirteen.www/cloakcheck

Scan a page for content planted to hijack an AI browsing/shopping agent before it acts on the page.

AI Security Harness: SAST, secrets, deps, containers, config & OWASP LLM. Scans locally.

guide-registry guide.photographer/guide-registry

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

guide-registry guide.marketingleader/guide-registry

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

Silent Directive Tools io.github.silentdirectivellc-hub/silentdirective-mcp

Free tools: 2026 API shutdown scanner, small-business website auditor, photo resale estimator.

postingcheck com.edgethirteen.www/postingcheck

Scan a job posting against 16 US state/DC pay-transparency disclosure laws.

React Native and Expo health check: upgrade blockers, store rules, crash risks, security findings

Switchboard ai.anywhereintelligence/switchboard

Agent to agent calls across AI apps. Humans remain in authority.

Vesremont com.vesremont/store

Vesremont catalog, product search and buyer-authorized shopping operations.

Pantry Buddy com.bonbrain/pantry-buddy

Your kitchen in chat: pantry stock, shopping lists, recipes and scanned grocery receipts.

AIGROW gg.aigrow/ai-visibility

Does AI recommend a business? The free AI visibility scan and the AI Visibility Index, by AIGROW.

unflagdomain: website blacklist removal com.unflagdomain/website-blacklist-removal

Website flagged by security vendors? Free scan, then we send the removal requests for you (paid).

guide-registry guide.strengthtraining/guide-registry

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

Scans agent code for untrusted input poisoning persistent cross-session memory

accessproof com.edgethirteen.www/accessproof

Scan a web page's markup for the WCAG failures ADA demand letters cite most often.

HTTP 511 network-auth io.github.sadri-dridi/http-511

Meaning of HTTP 511.