"Headroom open-notebook resources" matching MCP servers:

Enables Open Payments operations such as creating incoming payments, quotes, and outgoing payments via the Interledger protocol. Supports wallet address retrieval, grant management, and payment flow automation.

Create and check EU e-invoices (XRechnung, ZUGFeRD / Factur-X PDF, Peppol BIS, UBL, CII) on your own machine. Validation runs the official KoSIT, CEN and Peppol rules, and its verdicts match the official KoSIT validator 100% on the official test invoices. Free, open source, no API key.

MCP server for the Gravv payments API that lets AI assistants onboard customers, run KYC, open accounts, move money, issue cards, and exchange currency, with built-in documentation search and safety confirmations for money-moving operations.

A read-only MCP server for the open-banking.io PSD2 API that lets AI agents query personal bank balances and transactions via natural language, with zero-knowledge encryption ensuring all sensitive data is decrypted in-process and never exposed to third parties.

Enables AI assistants to build PayRetailers cross-border payment integrations accurately by providing official documentation, endpoint specs, country-specific payload validation, webhook guidance, and integration prompts as MCP resources, tools, and prompts.

Enables MCP clients to access Monobank's open API for exchange rates, account and jar balances, and statements, as well as set webhooks, using natural language tools.

MCP server exposing a fictional payment domain as tools, resources, and prompts, enabling reasoning over transactions, payment hubs, services, and system health.

Structured product data from the open web — where platform APIs don't reach. Schema.org + AI extraction. Pay per call via Stripe MPP.

MCP server for the PayPay Open Payment API, enabling QR code creation, payment tracking, refunds, and cancellations with sandbox and production support.

Decodes HTTP 402 challenges into exact payment and retry steps, recommends a payment rail from stated requirements, and searches an open registry of scored payment solutions with scheme references and support probing. Every tool is read-only, so nothing can spend money.

Marketplace MCP for paid HTTP APIs. Pay per call in USDC on Base via the open x402 standard — non-custodial. 13 tools for discovery, buying, and publishing APIs.

Enables Claude to interact with the Open Finance Brasil APIs, allowing users to query accounts, balances, transactions, credit cards, PIX keys, initiate PIX payments, and view investments across supported Brazilian banks using natural language.

AI-powered invoice automation. Create PDF invoices, predict late payment risk 0-100, auto-send reminders, reconcile Stripe/PayPal payments, track cash flow. 10 MCP tools, 4 resources.

Lets an MCP client find overdue Stripe invoices, see who owes what and how late they are, and re-send reminder emails for invoices that are still open. Runs read-only unless writes are explicitly enabled, re-checks invoice state before sending, and logs every call to an audit trail.

A local MCP server providing payment validation tools and resources, including card number Luhn checks, card network detection, and IBAN validation, with no network calls required.

Enables an AI assistant to query Ukrainian software cash register data—receipts, shifts, X/Z reports, goods, and orders—and, only with explicit write permission, to open or close shifts and create fiscal receipts.

Enables AI assistants and signed-in support staff to search and read customer tickets, add internal notes, issue refunds under per-scope and per-customer limits, and export ticket data over a remote, OAuth-protected Streamable HTTP endpoint. Tool lists, resources, prompts, and write operations are gated by bearer tokens and audience-bound scopes so that refund and export actions stay bounded.

Enables MCP clients to render HTML to PDF and check a prepaid account balance through two tools, returning PDF resources plus render and billing metadata.

Enables Claude Code, Cursor, or any MCP client to ask open and uncensored AI models questions privately, attaching a fresh zero-knowledge proof to each one so the gateway can verify it was paid for without learning who asked. Also lists models and costs, reports remaining questions, and buys new questions with USDC on Solana via x402.

Early-pilot MCP server. search_offers returns sponsored offers with terms; get_tracked_link returns a tracked link plus a disclosure text the agent must show. Public sandbox uses fictional data: no signup, nothing tracked or paid. Open-book pricing: 10% of validated commissions.

A local stdio server that lets coding agents build and verify a merchant payment integration against a sandbox, creating and cancelling invoices, simulating payment outcomes, checking invoice status, and validating webhook signatures. It also serves embedded docs as resources and refuses live or payout keys, keeping all work out of production paths.

An MCP server that provides a standardized interface for AI assistants to interact with TropiPay's payment platform, enabling account management, transactions, beneficiary management, and payment link creation through tools and resources.

A production-ready MCP server with 24 tools for Stripe, Twilio, Resend, GitHub, and Slack, plus pre-built workflow prompts and live resources.

Enables API documentation lookup and live API tools for managing Upmind platform resources like brands, products, clients, invoices, and tickets through natural language.

Enables AI assistants such as Claude, ChatGPT and Cursor to manage an open-source subscription backend: setting up products, entitlements, offerings and packages, looking up customers, granting or revoking access, adding webhooks, and tracking RevenueCat imports. Tool names mirror RevenueCat's MCP tools, so existing prompts work unchanged.

Enables AI agents to interact with the Meridian business-services platform, exposing services, service requests, workflow steps, payments, and meetings as MCP tools and resources.

Open-source sample MCP server built to be audited: ships a paid-tool x402 demo, a deliberately scannable surface, and documented security posture. From Payload, makers of the MCP Launch Readiness Audit (48-rule scanner with a fix for every finding, hardening templates, stress-test harness, readiness verifier, CI workflow, branded audit report) and the MCP Monetization Kit.

Enables managing REG.RU domain names, DNS zones and records, services, billing, DNSSEC, and account folders through REG.API 2.0 over the Model Context Protocol. Provides tools, resources, and prompts for domain availability checks, DNS record edits, renewals, balance and invoice lookups, plus workflows like expiring-service audits and VPS domain configuration.

Marketplace where AI coding agents fix GitHub bugs for cash bounties. Posters draft and fund bounties from chat (Stripe Checkout); solvers browse open work, request repo access, submit PRs, and get paid in USDC, ETH, or BTC. 11 tools.

Enables Claude to read UK bank account data—balances, transactions, cards, standing orders, direct debits, and identity—through TrueLayer's Data API, with local caching and optional live refreshes. It is read-only by design, requiring consent and never moving money.