MCP Server Directory

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

Memory for AI agents: a data bank of MTSV relations, read through one tool.

FilingDelta xyz.filingdelta/filingdelta

SEC filing changes, central-bank rate decisions and US macro cards. From $0.01 USDC via x402.

Quarterly Tax Calculator io.github.al157/quarterlytax-mcp

US federal + state quarterly estimated tax estimates, SE tax, and quarterly payment due dates.

India API io.github.dharunashokkumar/india-api

Free Indian data and AI: pincode, IFSC, GSTIN, holidays, GST invoice, OCR, translation. No key.

Logimu com.logimu/shopping-mcp

Amazon (11 marketplaces) and Walmart US product data: search, prices, stock, history, sellers.

Trading card prices, sold comps, history and movers from the Flipzi Data API. Bring your own key.

Témoin public fr.temoinpublic/temoinpublic

Prove a web page or document existed on a date: public SHA-256 registry anchored in Bitcoin. Free.

Xynthera AI — JSON invoice, OpenAPI and event checks site.chatgpt.toasty-seal-8877.xynthera-ai/xynthera-ai-prepaid

Signed deterministic checks for supplied JSON invoices, OpenAPI API contracts and JSON events.

Sanctions, crypto wallet, email and IP screening for agents. Pay per check in USDC via x402.

SLXD Finance app.slxd/finance

Query invoices, purchases, budgets and project financials from an AI assistant.

nulucre-wallet-reputation io.github.vjshaw/nulucre-wallet-reputation

Wallet trust scores for AI agents. Stellar, XRPL, EVM 81+ chains. OFAC sanctions. x402 payments.

Monexa io.github.emilijan-koteski/monexa

Track expenses and income, recurring payments and spending trends in Monexa from any AI assistant.

Income Checker io.github.Tariqlearnstocode/incomechecker

Income and rent calculators, pay stub math checks, and bank-based income analysis tools.

Private balance on Robinhood Chain for AI agents: send, swap and withdraw ETH, USDG and stocks.

FreeTier Agent API dev.pages.freetier-agent-api/freetier-agent-api

x402 or card pay-per-call: invoice JSON, DNS, whois, SSL, geocode, RSS feeds, sitemaps, QR codes

Winback: pay-on-success win-back com.winbackhq/winback

Pay-on-success win-back for RevenueCat and Stripe apps. Read-only pricing, fit and estimates.

Mat Web & Data Toolkit (x402) app.netlify.automatom-x402/web-data-toolkit

28 pay-per-call web/data tools: RDAP, SSL, DNS, SEO, FX, crypto, more. 0.01 USDC each via x402.

Vestiarion io.github.duongnq2798/vestiarion

An AI treasury agent paying in USDC on Arc: read its decisions, ledger and books; add invoices.

Automaton Onchain Tools app.vercel.automaton-tx-explainer/base-tools

Paid x402 crypto safety tools (Base/ETH/BSC): tx, approvals, contract risk, token deep scan.

Chargezen Subscriptions com.chargezen/subscriptions

Shopify subscriptions: subscribe-and-save, prepaid and build-a-box, plus rewards and invoices.

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

Country Macro Indicators (World Bank) io.github.pcp183/macro-indicators

Official World Bank macro indicators (GDP, inflation...) by country. $0.005/call via x402.

Registrai Arc data cc.registrai/arc-data

Read-only hourly data on stablecoin apps on Arc: payments, volume, indices, verified builders.