AI Agent Payments (MCP)

Model Context Protocol for autonomous payments

Enable AI agents to make and receive payments autonomously using the Model Context Protocol (MCP). Built for the agentic economy with budget controls and audit trails.

Advantages

Benefits

Autonomous Transactions

AI agents can pay for resources, APIs, and services without human intervention.

Budget Controls

Set spending limits, approved merchants, and transaction rules for your agents.

Audit Trail

Every agent transaction is logged with context about why the payment was made.

Multi-Agent Support

Manage payments across fleets of agents with hierarchical permissions.

Under the Hood

Technical Details

MCP Integration

The @t402/mcp package provides MCP tools for payment operations. Agents can check balances, make payments, and verify transactions.

Tool Definitions

Standard MCP tools: t402_pay, t402_balance, t402_verify, t402_history. Compatible with Claude, GPT, and other MCP-enabled models.

Spending Policies

Define rules in JSON: max per-transaction, daily limits, approved recipients, required confirmations for large amounts.

Wallet Abstraction

Agents operate with derived keys or smart contract wallets. Parent accounts maintain ultimate control.

Supported Chains

EthereumBaseArbitrumOptimismPolygonAvalancheBNB ChainzkSync EraLineaScrollInkBerachainUnichainMantleSeiCornConflux eSpaceSolanaTONTRONNEARAptosTezosPolkadotStacks

Quick Links

Documentation View SDKs Supported Chains

Ready to implement?

Get started with our quickstart guide and have ai agent payments (mcp) working in minutes.

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Implementation

Code Example

MCP Server with Payment Tools

import { createMCPServer } from "@t402/mcp";

const server = createMCPServer({
  wallet: agentWallet,
  policies: {
    maxPerTransaction: "10.00",
    dailyLimit: "100.00",
    approvedRecipients: ["0x...", "0x..."],
  },
  networks: ["eip155:8453", "eip155:42161"],
});

// Agent can now use t402_pay tool
// Claude: "Pay $5 USDT0 to the API provider"
// → t402_pay({ to: "0x...", amount: "5.00", network: "eip155:8453" })

Applications

Use Cases

1AI agents paying for API access

2Automated content purchasing

3Agent-to-agent service payments

4Research agents buying data access

Start building with AI Agent Payments (MCP)

Check out the documentation for detailed implementation guides and API references.

Read Documentation All Features

import { createMCPServer } from "@t402/mcp"; const server = createMCPServer({ wallet: agentWallet, policies: { maxPerTransaction: "10.00", dailyLimit: "100.00", approvedRecipients: ["0x...", "0x..."], }, networks: ["eip155:8453", "eip155:42161"], }); // Agent can now use t402_pay tool // Claude: "Pay $5 USDT0 to the API provider" // → t402_pay({ to: "0x...", amount: "5.00", network: "eip155:8453" })