MCP Server Directory

Hotelink io.github.KatyTechnologies/hotelink

Read-only hotel data (OAuth). Guide: https://mcp.hotelink.ai/llms.txt. Verify with list_datasets.

FreeQrly io.github.BryceBin/freeqrly

Free QR code generation via MCP: no-key static codes plus authenticated dynamic codes.

Automaton Onchain Tools app.vercel.automaton-tx-explainer/base-tools

Paid x402 crypto safety tools (Base/ETH/BSC): tx, approvals, contract risk, token deep scan.

Answer Checkup com.answercheckup/answer-checkup

Free AI readiness scan for any website. Paid reports for agents are coming soon.

PerfuMate app.perfumate/perfumate

Perfumery materials, IFRA Category 4, EU allergens, and your formulas and shelf via OAuth.

Read-only tools for AI agents: who can change a smart contract, how fast. Signed data, testnet.

market-data app.doorbase/market-data

US rental market data by zip: rent, cap rates, vacancy, hazard risk, rent trends. Free, no auth.

ACM-68000 signals for listed issuers io.github.allooloo/acm-signals

The ACM-68000 signal of a listed security in its home market: trading, not listed, read the filing.

Trace-store secret census com.textforagents/trace-store-secret-census

Trace-store secret census of stored agent traces. Verdict $0.01, census $4.99, passes $9.99/$19.99.

LowlandData Company Identity com.lowlanddata/company-identity

GDPR-clean company enrichment: domain, logo, socials, EU VAT and email-security from a name.

Imperium MCP Security — Prompt-Injection, Jailbreak & Tool Poisoning Firewall dev.agentdiet/mcp-security

Real-time MCP & A2A prompt-injection, jailbreak, and tool-schema poisoning firewall for AI agents.

AgentDiet Domain OSINT, TLS Certificate & Security Headers Recon dev.agentdiet/domain-osint

Inspects live IPv4/IPv6 DNS resolution, TLS certificate issuer/expiry, and HTTP security grade.

x402 DNS Email Auth Checker dev.workers.microtools-x402.x402-dns-auth-checker/dns-auth-checker

Audit SPF, DKIM, DMARC, MX, BIMI, MTA-STS for a domain; score + grade. $0.003 USDC/call via x402.

Cross-platform local-network diagnostics & security-posture MCP server — 31 tools.

Monetize Marketing com.monetizemarketing/app

The Monetize Marketing App as MCP tools: Brain, mission, training, skills, Library, software. OAuth.

AgentDiet ArXiv AI/CS Paper Search & Structured Token-Diet Digest dev.agentdiet/arxiv-digest

Queries ArXiv for AI/CS/math papers and returns structured abstracts, authors, PDF links, and Bib.

Santurce Software io.github.Santurce-Software-LLC/santurce-software

Explore software engineering services and submit authorized project inquiries.

lovefengis docs com.lovefengis/docs

Developer documentation of lovefengis (REST API, MCP, CLI, auth) over MCP. Read-only, no auth.

Local MCP broker: agents call credentials through a daemon without seeing secrets.

Cloud for Bots com.botrecipe/cloudforbots

Sandboxes, storage, secrets, queues, timers, locks, inboxes and run ledger for AI bots. One MCP.

CollectSEA io.github.kelvin-ling/collectsea

Find real software, security and AI-agent failures that resemble your design, with safeguards.

Scanverity Public Market Discovery com.scanverity/public-market-discovery

Free Polymarket search; EUR100 written reports or one-rule QA; EUR500 five-rule QA by quote.

AgentDiet A2A Indirect Prompt-Injection & Jailbreak Firewall dev.agentdiet/prompt-guard

Scans untrusted web pages, emails, MCP responses, or A2A payloads for hidden prompt injections an.

Security-first Binance MCP. 26 tools, human-confirmed spot trades, offline quant research.