MCP Server Directory

Screwtape.ai ai.screwtape/screwtape

Checks if an AI agent may pay: duplicate invoices, totals, evidence. Signed receipts.

Match supplier invoice lines against purchase orders and accepted receipts by SKU, locally.

Offline ISO 20022 payment tools: explain and scrub pacs/camt, CBPR+, SSI checks, IBAN and BIC.

AVGifts — corporate gifts with logo ru.avgifts/gifts

Corporate gifts and branded merch in Russia: search, prices, stock, logo printing cost calculator.

Paidnice com.paidnice/mcp

Accounts receivable for Xero and QuickBooks Online: customer replies, contacts and invoices.

Paper rails: payment rehearsal universe com.textforagents/paper-rails-payment-rehearsal

Paper trading for agent payments: rehearse buying flows, earn policy-bound receipts.

xmlvalid com.xmlvalid/xmlvalid

Validate XML and e-invoices (XSD, DTD, RelaxNG, EN 16931, Peppol, XRechnung), explain errors

Paddle com.paddle/mcp

Query and manage Paddle Billing: pricing, subscriptions, payments, revenue reports and webhooks.

shopify-intel-mcp io.github.robertoyanguas-ops/shopify-intel-mcp

Extracts live product catalogs, pricing tiers, SKU variants, and stock availability from any Shopi

Check x402 endpoint reliability on Algorand before an agent routes a payment there.

Tanod PDF OCR (Apify, card-paid) dev.tanod/apify-pdf-ocr

PDF OCR via Apify. Pay by card with an Apify account, no crypto wallet.

SafeSwapGlobal Crypto Swap Quotes io.github.safeswapglobal-prog/safeswapglobal-mcp

Real-time non-custodial crypto swap estimates and on-chain routing across 240+ pairs.

Field Notes podcast library io.github.abarto666/pod-exp

Which podcasts and talks a person appeared on, with summaries and chapters. AI, investing, crypto.

Invoice & Payment ID Validator dev.workers.mohamed-bahaa53000.invoice-validator/invoice-payment-id-validator

Pay/review/hold verdict for invoice payees: cross-checks IBAN, BIC, VAT, EIN. Paid: RapidAPI

ARYSPHERE x402 chain reads and token verdicts com.arysphere/arysphere-x402

Pay-per-call onchain reads (Base, Ethereum, Gnosis), token verdicts and LLM chat over x402 USDC

find-ref com.find-ref/find-ref

Korean accounting standards, audit, tax and legal sources and rulings, with citation checks

Yahoo Finance (stocks, options, financials) io.github.akhilrajesh213/yahoo-finance

Yahoo Finance for AI agents: quotes, price history, options with Greeks, financials, news, movers.

Review grouped duplicate invoice candidates from supplied records locally; no payment approval.

Tanod Document to Markdown (Apify, card-paid) dev.tanod/apify-document-to-markdown

Document to Markdown via Apify. Pay by card with an Apify account, no crypto wallet.

Golden Kog token risk analyst by Kognai ai.kognai/golden-kog

Risk and structure facts on one Solana or Base token, never a trading signal. Paid per call by x402.

Read-only, dated public crypto source registry with evidence status. Local stdio; no API keys.

ZKStamp Proof-100 io.github.ZKStamp/proof100

Shielded proof-of-existence timestamps on BitcoinZ (zk-SNARKs). Free trial: 3 proofs.

Smaregi MCP by usefulapi io.usefulapi/smaregi

Read Smaregi stores, products, customers, stock and transactions; manage customers, products, stock.

smallinvoice MCP by usefulapi io.usefulapi/smallinvoice

Read smallinvoice contacts, invoices, offers, projects and hours; create contacts and invoices.