"How to interact with a MetaMask wallet" matching MCP servers:

Enables AI agents and users to access an account-owned crypto wallet via MCP, providing tools for balances, transfers, swaps, bridging, merchant checkout, policy-constrained contract calls, signing, app connections, and Hyperliquid spot/perpetual orders.

MCP server that gives terminal AI agents a guarded USDC wallet with firewall, automatic 402 payment handling, and budget limits.

Enables agents to autonomously pay x402 API requests in USDG on Robinhood Chain while enforcing budget caps and scoped sessions.

Provides AI agents with a prepaid, capped payment method so they can request charges without accessing real accounts. Enforces spending limits, requires human approval for larger transactions, and supports out-of-band approvals via CLI, dashboard, or Telegram.

Enables agents to maintain sandboxed spend ledgers, enforce monthly budgets, transfer funds between agents, and generate invoices, all without real financial accounts.

Enables buyers to authorize Stripe machine payments by validating seller challenges, consulting a policy gateway, and issuing bounded shared payment tokens.

Enables Claude and Codex to discover and execute paid APIs via a credit balance, handling registry search, top-up, and execution.

A unified MCP server providing x402 payments, TAP identity verification, referral onboarding, and domain registration for Claude Code and other MCP clients.

An open-source, zero-dependency Model Context Protocol (MCP) server and HTTP 402 payment gateway built for Cloudflare Workers and Node.js. This project enables AI agents (Claude Desktop, Cursor, etc.) to natively discover, negotiate, and autonomously pay for digital resources over Solana USDC using standardized MCP tools and standard HTTP 402 Payment Required headers.

MCP server that exposes the wallet-watch subscription-tracking REST API as tools for AI assistants, enabling natural language management of subscriptions including listing, renewal forecasts, spend summaries, and actions like snoozing or downgrading.

Agentic MCP for buying VISA/MasterCard cards, VISA prepaid cards, eSIM and Gift Cards (to pay for 20+ services). Top up with USDT TRC-20.

MCP server for managing a 2328 merchant account, providing tools for balances, exchange rates, invoices, static wallets, payouts, and conversions via natural language.

Checks live x402 routes across Base, Solana, and Algorand before agents spend. $0.003 USDC settles only for a valid live eligible route; normal typed misses are not settled. Free preview and validate tools. Seller payment is separate; the agent keeps its wallet. Optional signed route-binding receipts support buyer-side checks.

Enables AI agents to call paid APIs and settle HTTP 402 payment challenges with USDC on Base, without private keys ever being involved.

A paid MCP server that lets AI agents send SMS messages to US phone numbers via x402 micropayments, with automatic compliance and opt-out handling.

Enables AI agents to discover and pay for x402-gated HTTP APIs, handling 402 Payment Required flows with local signing. Supports EVM and Solana with non-custodial wallet management.

Keyless crypto payments for AI agents. One MCP call turns any wallet address into a non-custodial crypto payment link or tip jar, no API key and no account, with funds settling straight to your wallet at a 0% platform fee (USDC/USDT, BTC, LTC, DASH, DOGE, ZCASH).

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.

MCP server that lets a chatbot browse eSIM plans, sign in, prepare quotes, and execute wallet or card purchases on an existing eSIM platform, with safe typed tools.

MCP server for Tersign, the evidence layer for agent commerce, enabling agents to issue, verify, and manage signed receipts, compliance records, refunds, and disputes on a counter-signed hash-chained ledger.