MCP Server Directory

f1ow com.f1ow/f1ow

Crypto market data & research MCP: price, derivatives, on-chain, sentiment, news, catalysts.

email-validator io.github.ryuamarines/email-validator

Validates email syntax and MX records. x402 payment required (Base mainnet USDC).

XGuard — Payment Decision & Discovery io.github.moelayyan90/xguard

Payment decisions, durable evidence, x402 resource discovery and live gateway status for AI agents.

Invoice & Receipt OCR Extractor to Excel com.ranovam/invoice-to-excel

Invoice and receipt extractor: reads PDF and image invoices/receipts with AI, pulling date…

crypto-casinos io.github.cryptoplayer/crypto-casinos

Real-money crypto casino audits: trust scores, live tests, rankings, new casinos, bonuses. Signed.

Finance Ops — Accurate Financial Record Reconcile — Northgate Outfitters (af293a80) com.a2awire/benchmark-accurate-financial-record-reconcile-2026-09-22-af293a80

12 synthetic accurate financial record exception cases: duplicate reimbursements, policy-watch list

bank-stress-dataset com.edgethirteen.www/bank-stress-dataset

Pricing/details for a CSV of every FDIC-insured bank's stress metrics from its own Call Report.

Nanotoll MCP dev.nanotoll/nanotoll-mcp

Compress prose for LLM context windows. Per-call USDC billing, signed receipt.

Deterministic payment policy guardrail for AI agents - budgets, allowlists, signed mandates.

swop io.github.Travisswop/swop

Sell to people and AI agents: create products, a storefront, and USDC payment links from chat.

mcp-server com.volcanodog/mcp-server

Real-time and delayed market sentiment data with premium access via Stripe payments

Quantum-finance market metrics for AI agents, computed by the Black Belt Labs engine.

AI Alt Finder com.aialtfinder/aialtfinder

Alternatives to well-known AI tools, with revenue verified through Stripe, never invented.

TOTVS Protheus io.github.mcp-dir/protheus-mcp

TOTVS Protheus ERP for AI: stock, sales, orders, customers and MRP. Read-only, official API.

Agent Search Pro io.github.AgentMindCloud/agent-search-pro

Live web search and research synthesis for agents, with free samples and x402 USDC payments.

cash-book io.github.theluckystrike/cash-book

One double-entry ledger derived from your invoices, bank, expenses, deposits and assets.

Recurring subscriptions billing: schedule once, auto-generate due invoice PDFs.

Crypto Data & Market Analysis Agent io.github.dopionut-jpg/crypto-data-market-analysis

Crypto positioning and macro for agents: funding, open interest, execution cost, volatility

Tracepay io.github.soreniverson/trace

Read-only payment state for USDC on Base/Solana (Bridge, Circle): completed, failed, or delayed.

catalogue io.github.theluckystrike/catalogue

A price list and rate card the quotes and invoice servers read by SKU.

Read, validate and write e-invoices on your own machine. XRechnung, ZUGFeRD, Factur-X, UBL, CII.

ChainRPC MCP io.github.John0n1/chainrpc-mcp

Safety-first EVM and Bitcoin RPC tools for balances, contracts, blocks, and transactions

Faber Machine Market com.fabersomniorum/faber-machine-market

Paid machine-to-machine information tools with x402 USDC payment on Base Mainnet.

Statsnet io.github.usenetstate/statsnet

Background check any company in the world: registration, executives, courts and finances.