MCP Server Directory

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

Discover, quote, verify & self-check 56 x402 pay-per-call finance/tax calculators for AI agents.

Read-only payment-boundary preflights plus an unsubmitted public quote-request draft tool.

EP AgentIAM io.github.achilliesbot/ep-agentiam

AI agent execution safety via x402 micropayments: risk scoring, integrity, memory checks

Torify — Japan Locale APIs for AI Agents dev.torify/japanese-locale-mcp

39 Japanese locale APIs — wareki, NTA invoice, 法人番号, postal, romanization, kanji-kana (Workers AI).

Free invoice generator — create pre-filled invoice URLs with taxes, discounts, and 14 languages.

Cryptopolitan MCP io.github.4dmrkey/cryptopolitan

Real-time crypto news, analysis, and price predictions for AI agents via MCP.

Official Billium MCP server: manage crypto invoices, payments, and webhooks from any MCP host.

Color Palette Generator API io.github.Br0ski777/color-palette

Generate harmonious color palettes — complementary, analogous, triadic. x402 micropayment.

Siigo — Colombian accounting + DIAN e-invoicing

Agentry — The Trust Layer for the Agent Economy io.github.cthulhutoo/agentry

Agent registry with Nostr identity, reputation, escrow, observability, and Lightning payments.

Vietnam stock MCP: TA signals, Z/F/M scores, foreign flow, whale detection. 2000+ VN stocks.

MCP server exposing cryptography library functionality

JSON Validator API io.github.Br0ski777/json-validator

JSON syntax validation, JSON Schema checking, structure stats. x402 micropayment.

Port Scanner API io.github.Br0ski777/port-scanner

TCP port scanning — check open ports on any host. x402 micropayment.

Shopify Catalog Monitor io.github.dizzyvinci/shopify-catalog-monitor

Track price drops, stock-outs, restocks, and new/removed products across Shopify stores.

Regex Tester API io.github.Br0ski777/regex-generator

Test, validate and explain regular expressions with match highlighting. x402 micropayment.

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

Timezone Converter API io.github.Br0ski777/timezone-converter

Convert datetime between timezones. List all IANA zones. x402 micropayment.

BraFinder io.github.fenrici1/brafinder

Neutral cross-brand bra-size translation and a live in-stock bra catalog by size.

Wallet Portfolio Tracker API io.github.Br0ski777/wallet-portfolio

Crypto wallet balances, ERC-20 tokens, USD values across Base and Ethereum. x402.

Route x402 payments, Pyrimid affiliate splits, and referral links. Vendor-neutral, adapter-based.

Gate Exchange MCP io.github.gateio-dev/gate-exchange

OAuth Gate exchange MCP for CEX trading, account, wallet, unified account, and sub-account.

Giskard Search io.github.giskard09/search

Pay-per-use web search for AI agents. Lightning invoice, Ed25519 signature, karma discounts.