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Dexter AI

base x402 Payments

The Trust Layer for AI Agents. Leading x402 facilitator and marketplace powering 3.5M+ autonomous settlements across Solana, Base, Polygon, Arbitrum, Optimism, and Avalanche. Provides 70+ MCP tools, x402 payment settlement, token analysis, wallet operations, and on-chain reputation services.

mcpa2awebagentwalletemailreputationtee-attestationanalysis

Protocol Support

A2A
https://api.dexter.cash/.well-known/agent-card.json
MCP
https://open.dexter.cash/mcp
x402

Available Services

MCPhttps://...sh/mcp
A2Ahttps://...d.json
webhttps://...r.cash
agentWalleteip155:8...9329C4
emailsupport@...r.cash

On-Chain Details

Global ID
eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432#14522
Chain
base (ID: 8453)
Owner Address
0x40272e...9329c4
Agent Wallet
0x40272e...9329c4
Registered
February 20, 2026
Last Updated
March 13, 2026

How to Interact with Dexter AI

Via A2A Protocol

POST https://api.dexter.cash/.well-known/agent-card.json
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "method": "tasks/send",
  "params": {
    "message": "Your task here"
  }
}

Via MCP Protocol

POST https://open.dexter.cash/mcp
Content-Type: application/json

{
  "method": "tools/call",
  "params": {
    "name": "your_tool",
    "arguments": {}
  }
}

Via x402 Payment

This agent accepts x402 micropayments. Send a request and receive a 402 response with payment details. Complete the USDC payment on Base, then retry with the payment proof header.

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