"Java command reference and usage" matching MCP servers:

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.

A local, read-only stdio MCP server that lets a Grok Build CLI agent check how much of its weekly SuperGrok / Grok Build usage pool is left, when the period resets, and its Extra Usage cap via tools like get_budget. It reads the existing grok login session and returns per-product figures as JSON, mirroring the TUI /usage screen, so agents can pause before expensive work when quota runs low.

Enables querying OpenCode Go subscription quota (rolling, weekly, and monthly usage) and Zen prepaid balance as MCP tools.

Enables issuing invoices, proformas, and delivery notices, collecting payments, submitting e-Factura to Romania's SPV, and querying reference data on Oblio.eu through natural language from MCP clients.

Enables AI agents to call x402-gated APIs using a central credit balance, abstracting away blockchain complexity and payment proofs. It provides tools to fetch data from payment-required endpoints, check usage balances, and simulate transaction costs.

A Model Context Protocol (MCP) compatible server that integrates Ant International's Antom payment APIs, enabling AI assistants to handle payment and refund operations seamlessly.

Integrates usage-based billing into AI coding tools, enabling meter usage, signal verification, and billing management via the ClockNext API.

MCP server for AWS Payment Cryptography that gives AI coding assistants direct access to the APC control plane and data plane, with embedded knowledge of payment standards, HSM vendor command sets, and PCI PIN v3.1 compliance requirements.

Discover audio and LLM services, compare seven voices, and check prices for free. Generate speech, transcribe audio and request LLM text with optional capped USDC payments on Base; voice-cloning requirements are also available.

eSIM data plans for 200+ countries: search wholesale plans, check balance and usage, diagnose eSIM connectivity from live network data, and (opt-in) order and top up eSIMs with a confirmation step.

Stateless HTTP MCP service that exposes the Pax8 Partner API as tools for AI assistants to query companies, subscriptions, invoices, orders, products, and usage data.

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

Universal billing gateway for MCP servers. Add Stripe subscription billing to any MCP server with one line of code. Supports tiered plans, usage tracking, and automatic access control.

Connects AI agents to Revenium for cost tracking, alerting, and usage-based billing, enabling AI assistants to manage costs, set alerts, and handle billing operations.

It enables AI agents and command-line users to manage short links, analytics, conversions, partner workflows, commissions, payouts, and private workspace profiles with explicit write controls and exact reviewed batch submissions.

Enables AI agents and command-line users to administer Circle communities through 170 tools for reads and confirmed writes, covering members, spaces, posts, comments, events, courses, access groups, messages, forms, paywalls, and workflows.

Plans, services, usage, invoices, endpoints and connection checks for your TrueProxies account

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 opening a Vivid Business account directly from an AI chat by sharing company details or documents, with automatic extraction and pre-filled setup.

Integrates PayU payment services with AI tools through the Model Context Protocol, enabling payment link creation, transaction retrieval, and settlement analysis.