MCP Server Directory

Accept crypto payments from AI agents: invoices + hosted checkout on 5 chains. No API key.

HTML to Markdown API io.github.Br0ski777/html-to-markdown

Convert HTML to clean markdown. Strips scripts and styles. x402 micropayment.

Crypto data & trading MCP with 43 tools: prices, DeFi, NFTs, Solana swaps. 11 tools free.

Vector Search API io.github.Br0ski777/vector-search

In-memory vector search with TF-IDF and cosine similarity. x402 micropayment.

Document to JSON – PDF Invoice/Statement/Contract Parser io.github.fashionmascherine-svg/document-to-json-mcp

Turn any PDF into structured JSON via AI + OCR: invoices, bank statements, contracts.

Read-only Nigerian electricity meter validation + DisCo list via VTpass (free keys). No payments.

decker io.github.gigshow/decker

Deterministic market-state engine for trading agents — state, gate, coordinates, with receipts.

intelligence-mcp io.github.goodmeta/intelligence-mcp

Agent payments ecosystem intelligence. Scans GitHub/HN/npm across AP2, ACP, x402, MPP, UCP.

convergealpha io.github.CrazymakER23/convergealpha

AI stock signal convergence � 13 sources, Bayesian scoring, verified outcomes.

Payment gateway for AI agents with tool discovery, provisioning, metering, and reliability tools.

MCP server for PayFast — AI assistants interact with South Africa's payment gateway

Korea Invoices (POPBiLL 전자세금계산서 issue, query & NTS transmit) app.wishpool/korea-invoice-mcp

Korea POPBiLL e-tax-invoice: AI agents issue, query & transmit e-invoices, stateless BYO.

DACH accounting for AI: connect sevDesk & Lexoffice to create invoices, contacts, vouchers.

XRechnung & ZUGFeRD: create, validate, and convert German e-invoices. EN 16931 compliant.

Generic MCP server for calling x402-protected APIs with automatic payment handling

Quantitative trading: quotes, backtesting, screening, and genetic algorithm strategy evolution.

Swiss accounting integration for Bexio. 314 tools: invoices, contacts, projects, account balances

MCP server for Ryvo Protocol state reads and prepare-only payment-channel actions.

Fdic io.github.pipeworx-io/fdic

FDIC MCP — FDIC BankFind Suite API (free, no auth)

MCP server for Spraay x402 Gateway. 60 tools for crypto payments, DeFi, and AI on Base.

AgentData — crypto market data with a checkable record io.github.speteai/agentdata-mcp

Verifiable crypto signals, recorded history and always-on monitoring for AI agents via x402 on Base.

Hive Barter io.github.srotzin/hive-mcp-barter

Multi-party agent barter — non-cash capability exchange with cryptographic receipts

Zyberno stock valuation com.zyberno/zyberno

Brina Gap valuation, screener and market score for US-listed stocks. SEC data, free, no key.

Fakturai — German E-Invoice (ZUGFeRD / Factur-X / E-Rechnung) de.fakturai/erechnung

KoSIT-verified German e-invoices: generate & validate ZUGFeRD, Factur-X, XRechnung, EN 16931.