MCP Server Directory

Crypto Bot Audit + Market Data (x402 paid) io.github.kaminariouji/x402-audit-agent

x402 pay-per-call: 146 MCP tools, no account or key. USDC on Base + Solana, $0.001-$0.01/call.

QuerySail: Google Analytics com.querysail/ga4

Hosted, read-only Google Analytics 4 MCP: reports, period comparisons, realtime, custom fields.

Search the Library of Congress collections. No key required.

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

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

Search videos on Dailymotion. No key required.

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

Review orders and supplier invoices locally with exact arithmetic and source-linked findings.

Read-only PostgreSQL performance diagnostics: slow queries, EXPLAIN, index advice, locks, functions

Vendor Signals io.github.pipeworx-io/vendor-signals

Vendor documentation and changelog change-tracking as ACCOUNT SIGNALS (fleet #545).

LedgerIQ Depreciation Calculator io.github.tylerscomic-lab/ledgeriq-depreciation

MACRS schedules, Section 179 and bonus depreciation with 2026 limits.

Buddhist era year from UTC io.github.sadri-dridi/buddhist-yr

Buddhist era year from UTC

Country facts, administrative boundaries and regional statistics, for interactive geography.

Fuxux io.github.abogitoff/fuxux

Schedule social posts on 12 platforms: create, edit, reschedule, delete, and list your queue.

Bounty Operator io.github.bountyoperator/bounty-operator

Argues against a security finding or a draft bug bounty report before you submit it.

TLS certificate/cipher/protocol inspection

TicketsData io.github.ticketsdata/ticketsdata-mcp

Real-time ticket listings, prices and fees across major ticket marketplaces.

Fiveable for AP Teachers io.github.thinkfiveable/fiveable-ap-teachers

AP rubric grading, assignment drafts, question-bank materials, and class insights for teachers.

Let an AI assistant manage CMSKite blog content: projects, posts, API keys and site integration.

Unofficial MCP server for the Lexware Office accounting API — runs over stdio or HTTP.

Create, inspect and extract zip archives offline, with traversal, symlink and zip-bomb guards.

Cheapest LLM API io.github.tehtelabs/cheapestllmapi

Compare LLM API prices, search models and providers, and access reviewed benchmark results.

mzizi-mcp io.github.mzizi-dev/mzizi-mcp

Mzizi design system MCP: components, tokens, skills and docs. Free; sign-in only for Fundi.

Read available slots from a public OnlineAfspraken widget URL without an account.

ICANN registrar accreditation status io.github.joelp22-maker/referencesource-registrars

Is a domain registrar still ICANN-accredited, and has ICANN acted against it? 4,500+ registrars.