MCP Server Directory

Hacé Cuentas — Free Calculators io.github.grblasquiz/hacecuentas

Free calculators as MCP tools: finance, taxes, health, units, dates. Search, fetch & compute.

Wallet infrastructure for Ai agents. EVM + Solana. x402 payments. No KYC.

DataBR — API de Dados Públicos Brasileiros io.github.igorpdev/databr

Brazilian public data API for AI agents. BCB, IBGE, CVM, B3, compliance. x402 payments on Base.

agent-metering io.github.jdhart81/agent-metering

Usage metering + SLA accounting for agent services (the meter behind x402 micropayments).

Self-hosted MCP server for Kalshi prediction market trading via DFlow on Solana

MCP server for address derivation and encoding utilities across multiple blockchains via Crypto APIs

jp-crypto-tax-rules io.github.kodandy/jp-crypto-tax-rules

Machine-readable Japanese crypto-asset tax rules for AI agents: rules-as-code with citations, x402.

MCP server for the National Bank of Belgium SDMX statistical API (221 dataflows).

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.

Content studio MCP for coding agents: BYO keys, deterministic video rendering, draft-first posting

Web3 Sentiment io.github.Evozim/web3-sentiment

Web3 social sentiment aggregator analyzing crypto trends.

MCP server for expense tracking, invoices, budgets, and financial insights directly in Claude

Mansa African Markets io.github.HeyZod/mansa-african-markets

Live African stock market data — NGX, GSE, NSE, JSE, BRVM and 8 more. Prices, indices and movers.

Bitcoin AI + Nostr WoT scoring (12 tools). L402 pay-per-call. 50 free WoT/day.

93 tools: finance, weather, news, travel, knowledge, SEO. 27 free + 66 paid via USDC x402.

Agent Revenue Copilot io.github.Olddun/agent-revenue-copilot

MCP/x402 starter audit; payment-ready buyers call buy_now first.

Read a Pay-As-You-Learn tutoring session's itemized tab and close it for an attested invoice.

Bis io.github.pipeworx-io/bis

BIS MCP — Bank for International Settlements statistics (no auth)

terminalfeed io.github.RipperMercs/terminalfeed

Real-time data feeds for AI agents with USDC micropayments on Base for premium tools.

Zipp com.zippfeed/zipp

Multi-language crypto news with editorial sentiment + importance scoring; cites original publisher.

Zyberno stock valuation com.zyberno/zyberno

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

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

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

AgentTrust io.github.eamwhite1/agent-trust

Trustless XRPL escrow oracle for AI agents. Create jobs, verify work, release XRP/RLUSD payments.

EZ@Work io.github.eranfinish/ezatwork

Manage clients, projects, time, and invoices in EZ@Work — business management for freelancers.