"Google Pay" matching MCP servers:

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.

MCP server that lets AI agents discover and pay for .agent services using USDC over x402, with daily budget controls and payment link creation.

Enables AI agents to create cryptocurrency payments, check payment status, generate QR codes, and manage transactions through Bitnovo Pay API integration with automatic webhook support.

An MCP server for USDC payments on Base, enabling AI agents to check balances, send payments, generate payment requests, and view transaction history.

Enables AI agents to send and receive USDC stablecoin payments on Base and Solana blockchains through MCP tools for wallet operations, balance checks, payment requests, and transfers.

Non-custodial payment engine for AI agents supporting BTC, ETH, USDT, USDC, XRP, XMR, and ZEC. Exposes wallet, invoice, and payment tools over MCP with per-agent spend limits, plus x402 pay-per-call support.

Enables AI agents to pay for services in DigiByte/DigiDollar on testnet via the x402 pay-and-retry pattern, with spend limits and security policies.

Converts PDF, Word, Excel, and PowerPoint documents to Markdown using a pay-per-conversion model with USDC on Base via the x402 protocol.

Lets an AI agent hire and pay a verified human: post real-world tasks (voice, observation, judgment) and pay in USDC via a non-custodial x402 auth-capture escrow on Base, budget frozen at deploy. Humans verify their X identity before submitting.

Market intelligence MCP server enabling AI agents to buy crypto sentiment reads, divergence verdicts, and analyst answers via pay-per-call x402 micropayments on Base.

An MCP server that provides real-time web search to AI agents via a pay-per-search USDC microtransaction system.

x402-trust gives AI agents a "check before you pay" layer for the x402 ecosystem.

MCP stdio server, one tool buy_verified_burst — x402 pay-only-if-verified inference.

Pay-per-call MCP server for market data with USDC micro-payments, featuring unique ML market-regime forecasts, news catalyst radar, and a live-verified algorithmic trading track record.

Enables AI agents to discover, inspect, and pay for paid HTTP and MCP services using USDC on Solana with a self-custodial wallet.

PayQL is an MCP server that lets any AI agent query The Graph and pay per query in USDC — gasless, keyless, bring-your-own-wallet.

Pay-per-use IBM Granite AI over MCP — chat, code, embeddings, analysis, and forecasting, billed in USDC on Solana. No IBM account required.

Compare real-time gas prices across up to 9 EVM chains and get the cheapest-chain recommendation. Pay-per-call via x402 (USDC on Base). No API key.

MCP server for pay-per-call DeFi and crypto data via x402 micropayments on Base. 8 endpoints: token prices, TVL, funding rates, token security, gas tracker, whale monitoring, wallet profiling, and yield scanning.

MCP server for Circle's Agent Stack. Create wallets, set spend policies, send USDC, and pay x402-priced endpoints — all from a tool call.