"Connecting Alpaca to Brokerages, News Sites, and Spark Cluster for Workflow Rebalancing" matching MCP servers:

Credit and payments for AI agent developers — over MCP. No crypto required

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.

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 AI agents to discover and call pay-per-request APIs via EntRoute. Give Claude, Cursor, Windsurf, or any MCP-compatible agent access to 350+ verified x402 API endpoints across 110+ capabilities — DeFi prices, web search, prediction markets, news, and more.

Enables MCP hosts like Claude, VS Code, Cursor, and others to discover payment methods, create payment links, verify payments, inspect invoices, and manage refunds through focused tools, with a guided safe payment workflow and a restricted generic API escape hatch.

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

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.

MCP server for the DataGate billing platform API, providing read-only tools to manage customers, invoices, products, agreements, sites, and payments.

An MCP server that enables AI agents to search, pay for, and call paid APIs using the x402 protocol, with automatic USDC settlement.

Provides MCP-callable workflow rails for agents, enabling bounded work execution, movement-fee quotes, payment authority references, paid rail runs, and signed receipts.

MCP server for Korean payment gateways, providing tools to query and cancel payments for PortOne and TossPayments, and verify PortOne webhooks.

Enables AI agents to discover, pay for, and retrieve receipts for external APIs via USDC micropayments through the SynapseNetwork Gateway, supporting stdio and Remote MCP.

MCP Server for agents to onboard, pay, and provision services autonomously with InFlow

Enables AI agents to discover, pay for, and sell APIs using crypto on Solana and Base networks, with support for automated x402 payments.

An MCP server that exposes tools for Taiwan's ezPay e-invoice lifecycle, enabling AI assistants to issue, void, and query invoices and allowances through the standard MCP protocol.

Enables AI agents to pay for protected HTTP resources using Stellar USDC via the x402 protocol, facilitating automated payments and access to paid APIs.

An MCP server that acts as a secure, multi-tenant proxy to the InvoiceShelf API, enabling AI assistants to manage invoices, estimates, customers, payments, expenses, and more with 109 tools and TOON compression for efficient token usage.

Enables AI assistants to inspect BLMPay balances, payments, payouts, webhooks, and API capabilities through MCP tools, with write/financial tools disabled by default for security.

An MCP server for the Pluggy Open Finance Brazil API, enabling connection to bank accounts and management of financial data including transactions, accounts, investments, and payment intents through natural language.