MCP Server Directory

Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun io.github.shawmena-dotcom/send-email

Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark

Ask free LLMs (DeepSeek, GLM, Gemini, Mistral) for a second opinion from any MCP client.

Gemfile gem count, versions discarded io.github.sadri-dridi/gemfile-ok

Gemfile gem count, versions discarded

MemPersist io.github.ravhirizaldi/mempersist

Durable, revision-pinned memory storage and retrieval for AI conversations.

Data Breach Notification Deadlines io.github.Nero-Engine/breach-notification-deadlines

Who to notify after a data breach and by what date: all US states, SEC, HIPAA, GDPR, UK. Sourced.

Notarize, e-sign, and verify identity with the Proof API. Unofficial; not affiliated with Proof.

Type-safe MCP server for OpenAPI Sync to inspect, validate, and synchronize OpenAPI specs.

Verify China Supplier | Supplier Check io.github.lu7897859-tech/china-sourcing-audit

Verify a Chinese supplier before you pay: company identity, status, risk signals. x402 per call.

BidGlow io.github.bidglow-ai/bidglow

Publish approved free listings and preview optional bids. No payments.

Credit notes against your invoices and purchase orders to suppliers, with VAT and A4 PDFs.

Revisa la política de tu canal interno de denuncias, artículo por artículo

DomainCanary com.domaincanary/mcp

Check a domain's DMARC, SPF and DKIM, build SPF records, explain bounces, read DMARC reports.

16 checks on a system-security-plan JSON, in your editor, before a validator returns the package

UpGrowth: business data for Algeria, Tunisia and Morocco io.github.Z4KARY/upgrowth-mcp

Official business data for Algeria, Tunisia and Morocco: activity codes, legal forms, tax, gazettes.

chucho — Book Direct io.github.chucho-ai/chucho

Find vacation rentals, explore photos and property details, and open direct host booking links.

Decodes MsgPack (LsMsgPack schemas, type ids) as text and reads it from variables while debugging.

Google Hotels Scraper io.github.RalfIJ/google-hotels

Google Hotels prices for any city and dates: nightly and total price with taxes, ratings, amenities.

Agent Crawl Readiness io.github.sadri-dridi/agent-crawl-readiness

Bounded crawl-readiness check for agent access: robots.txt, sitemap.xml, llms.txt, homepage.

Tx Procurement io.github.pipeworx-io/tx-procurement

Texas State Procurement MCP — State cooperative-contract awards & vendor sales (keyless).

Hollerdex: Website Contact Finder (Emails, Phones & Socials) io.github.shawmena-dotcom/website-contacts

Hollerdex: a domain's public emails, phones and social profiles as one ranked contact card.

ULID monotonic counter bits, value discarded io.github.sadri-dridi/ulid-mod

ULID monotonic counter bits, value discarded

Backtest Overfitting Audit io.github.tylerscomic-lab/overfitting-audit-mcp

Probability of Backtest Overfitting (CSCV), Deflated Sharpe Ratio, and purged CV splits.

Grisoco AI security audits com.grisoco/audits

Smart-contract security audits for EVM chains and DAML: quote, run and fetch reports.

Keyless MCP server for Reddit search via Arctic Shift: posts and comments by subreddit and query.