MCP Server Directory

AI API Cost Firewall & Rate Limiter io.github.Ansarii/mcp-rate-limiter

Token guard and rate limiter preventing runaway API cost spikes for OpenAI and Anthropic.

Reads your SECURITY.md against the EU Cyber Resilience Act reporting clock that started on 11 Septem

guide-registry guide.churchleader/guide-registry

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

guide-registry guide.militaryleader/guide-registry

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

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

cloakcheck app.vercel.cloakcheck-wheat/cloakcheck

Scan a page for hidden prompt-injection payloads targeting AI agents.

Malinois app.malinois/scan

Check a live app you own for public databases, leaked keys and exposed files.

guide-registry guide.scienceleader/guide-registry

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

Commerce preflights, Walmart mappings, D365 authorization, and offer checks; no external writes.

OpenRevenue com.openrevenue/mcp

OpenRevenue analytics MCP: projects, stats, visitors, funnels, and goals via API key or OAuth.

Kanbai — public project templates and SOPs app.kanbai/discovery

Read-only access to Kanbai's public project templates and SOPs. Public, no authentication.

guide-registry guide.homegarden/guide-registry

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

Insuro au.com.insuro/insuro

Free insurance vault MCP: OAuth policies, renewals, coverage Q&A, file PDFs. Global; not advice.

guide-registry guide.babyname/guide-registry

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

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

AurasPay Merchant MCP com.auraspay/merchant-payments

Review AurasPay merchant payments and prepare payment links with scoped OAuth and human approval.

guide-registry guide.pokerplayer/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. 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.

AgenTrux com.agentrux/agentrux

Authenticated event topics for agent-to-agent messaging with per-agent credentials and audit logs.

guide-registry guide.coachingleader/guide-registry

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

guide-registry com.dataengineerprofessional/guide-registry

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

Helius io.github.pipeworx-io/helius

Helius MCP — deeper Solana wallet/asset data than solscan (helius.dev)

Finds the 12 author-side privacy duties your plugin PHP breaks, with the article and the fix on ever

AlphaProve io.github.Bogzx/alphaprove

Backtest trading ideas and inspect strategies, trades and results. OAuth; invite-only beta.