"Frontend Development Tool for Detecting Errors" matching MCP servers:

Connects MCP clients to a telephony account so users can manage phone numbers, SIP accounts, routing, SMS, calls, and billing in plain language. It exposes search, schema lookup, and execute tools to run permitted API operations, with confirmation required for paid or destructive actions.

Enables AI agents to create and manage contract-guarded USDC wallets on Base with enforceable per-payment, daily, and monthly caps, vendor allowlists, escalation thresholds, and freeze controls. It provides read-only policy checks plus unsigned transaction proposals for payments, funding, vendor management, wallet creation, and module deployment without holding keys or broadcasting.

Pay-per-call USDC payment proxy for AI agents. Issue scoped Pay Tokens with hard spending caps and auto-journal every charge to freee / Money Forward / QuickBooks.

Daily market-regime context for trading agents: is the market risk-on or risk-off? Free tools: rules, schema, ledger of issue hashes, 7-day-delayed issues, full PAPER results record (losses included), disclosures. Paid tool: today's issue via x402, 0.10 USDC on Base, with spend caps and optional Agent Trust payment preflight. No track record; not investment advice.

10 MCP servers so agents can work in Korea: Naver Smart Store, Coupang, Cafe24, public data (business status, holidays, addresses), HWP files, KakaoTalk, Popbill e-tax invoices & 알림톡, Toss Payments, Japan→Korea sourcing, tax calendar — with human approval on every write. npm @appmonster/mcp-*.

Provides a three-layer payment firewall for AI agents, enabling identity verification, risk screening, and execution authorization with on-chain policy enforcement for secure and auditable transactions.

Free x402 endpoint checker plus paid report and metadata tools. Remote MCP server for agents. Written by AI named Nock, not a human.

MCP server for real FDM 3D-printing slicing, quoting, and design-for-manufacturability analysis via the FabTally API, supporting 12 printer profiles and 12 materials. Includes free discovery/printability tools and paid slice/quote/orientation tools settled via x402 (USDC on Base).

Enables running a local MCP server for Poland's KSeF (Krajowy System e-Faktur) e-invoicing system, so invoice data stays on the user's own machine rather than passing through an intermediary service. It currently exposes only a diagnostic server_info tool, with invoice search and retrieval tools still to come.

Create free, no-signup invoices from your AI assistant — the create_invoice tool returns a link that opens blankinvoicemaker.com pre-filled, ready to download as a watermark-free PDF.

Enables MCP clients to access all endpoints of an x402 gateway by paying real-time microtransactions (USDC on Base) per API call, with automatic tool discovery and spend guardrails.

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.

LFWin Payment MCP Server is a payment capability service for AI Agents. Adhering to the standard MCP protocol, it exposes capabilities including creating payment orders, checking payment status, initiating refunds and querying refund status for Cursor, Cline, Claude Desktop, enterprise intelligent assistants and self-developed Agent applications.

MCP server for the Hosannaith x402 reliability oracle on Algorand. Gives any agent a tool to score an x402 endpoint's reliability — uptime, correct HTTP 402 behaviour and latency — before paying it.

Enables AI agents to create and wait on Ethiopian birr checkouts, manage products and orders, preview and (when explicitly enabled) send payouts, verify and test webhooks, and search Jami's documentation. Every tool mirrors the official JamiDev SDK and REST API, with money handled as integer santim and withdrawals gated behind opt-in flags.

Enables Claude to interact with a Folio business bank account for managing accounts, transactions, receipts, bookkeeping, and payments as drafts.

Enables to generate, decode, and validate PayBySquare QR codes for Slovak payments, with MCP integration for use with Claude Desktop and other MCP clients.

Enables AI agents to create stablecoin payment links with QR codes and hosted checkout pages, and to check, list, validate or delete payments across Stellar, Solana and Monad using an API key. Read-only mode, scoped keys and tool annotations keep fund-moving and destructive actions under user control.

MCP server for Samsung Smart TV in-app payment (Samsung Checkout/DPI) development, enabling AI coding tools to provide real-time API references, code generation, troubleshooting, and implementation guides.

Enables an MCP client to answer revenue questions about a Stripe account — normalized MRR/ARR, subscription and customer churn, failed payments and a one-call revenue summary, all grouped per currency. Access is read-only and a built-in deterministic demo dataset lets every tool be tried without a Stripe API key.

Enables individual proprietors and freelancers to manage daily accounting tasks like journal entries, invoice creation, and monthly reconciliation through simple tool calls, using freee's API.

Enables agents to play the Crowns medieval world game through tool calls instead of composing raw HTTP requests. It handles x402 USDC payments from the agent's own wallet, letting the model claim land, build, trade, and wage war.

An MCP server for Valta that exposes financial governance tools for AI agents, including spend authorization and audit trail via MCP-compatible clients.

A local MCP server for Stripe payment operations with 52 tools across 8 domains, featuring built-in PII redaction and strict input validation for safe AI-assisted development workflows.

Paybond Kit for Python is the PyPI package for tenant-bound Paybond integrations and delegated agent spend controls. It opens hosted Gateway sessions, verifies capability tokens, authorizes tool-call spend, signs intent and evidence payloads, uses Stripe Connect, Stripe ACH Direct Debit, or x402 / USDC-on-Base settlement rails, reads tenant-scoped Signal, fraud, ledger, protocol, and A2A data, and

MCP server for ATOL Online fiscal receipt API. Enables 54-FZ compliant receipt generation, refunds, corrections, and status checks for Russian online cash registers.

Non-custodial stablecoin bill payments (airtime, data, electricity, cable, education) on Celo mainnet, reachable via x402 (zero setup, EIP-3009), a linked wallet's PIN-gated MCP/A2A tool catalog, or plain natural language on Telegram/WhatsApp/X.

MCP server that gives Claude/GPT agents commerce tools — each tool call pays an upstream x402 endpoint and returns its artifact.

Enables MCP tool developers and AI agents to track payments, calculate sales tax liability, and ensure tax compliance across US jurisdictions.

Enables interaction with the Crowns game API as MCP tool calls, including x402-based payments.

A custom MCP server for the Mercury banking API that uses personal API tokens to avoid session expiry. It provides 15 tools for managing accounts, transactions, recipients, treasury, and more.

Enables developers to integrate Kount Payments Fraud v2 from a coding assistant by inspecting API contracts, generating and validating synthetic requests, authenticating against Sandbox, troubleshooting errors, and checking integration readiness.

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.

Lets AI agents work inside your own signed-in RazorSync account, so you can schedule and reassign jobs, create work orders, turn completed work into invoices, and follow up on unpaid bills using plain language. Works with Claude Code, ChatGPT, Cursor, and any MCP-capable agent, with a local stdio server that forwards tool calls to the hosted endpoint.

Enables AI agents to perform and manage payments through the Model Context Protocol, including paying, checking balances and history, registering bots, setting spending limits, discovering supported networks and tokens, inspecting commissions, and managing bot pools. It also supports governed tool calls with policy decisions, human approval, and tamper-evident audit traces.

Enables AI models to query and compare Brazilian card machine MDR rates and monthly costs across brands and business profiles, including tools for listing brands and tiers, calculating costs, and ranking options.

Exposes a wrapped legacy billing system to AI agents as typed, validated, read-only tools for listing customers with their pricing tiers, looking up individual customers, and calculating invoices (subtotal, tier discount, VAT, shipping, total) through a strangler facade. It also lets agents run the legacy and modern implementations on the same order and report whether they agree, with recoverable tool errors that guide the agent to valid inputs.

MCP server for Robokassa payment API. 2 tools for invoice creation (with MD5 signature) and status checking.

Enables interaction with Safaricom M-Pesa Daraja 3.0 API, covering payments, disbursements, treasury, and fraud checks, with a built-in simulator for testing without credentials.

Enables clients to issue refunds over stdio through a JSON-RPC tool call backed by a ledger. Malformed arguments are rejected with a real -32602 error code instead of the SDK's default isError result.