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aiAgents.ctaGetKeyaiAgents.ctaDocs
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ZeroDev Gasless
Session Keys
Coinbase CDP ✓
x402 Pay-Per-Call
Agent Trading

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create_web3_escrow

aiAgents.toolCreateWeb3Escrow

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release_web3_escrow

aiAgents.toolReleaseWeb3Escrow

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dispute_web3_escrow

aiAgents.toolDisputeWeb3Escrow

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get_web3_escrow

aiAgents.toolGetWeb3Escrow

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create_escrow

aiAgents.toolCreateEscrow

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release_funds

aiAgents.toolReleaseFunds

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upload_evidence

aiAgents.toolUploadEvidence

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get_fx_rate

aiAgents.toolGetFxRate

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check_status

aiAgents.toolCheckStatus

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list_payments

aiAgents.toolListPayments

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cancel_payment

aiAgents.toolCancelPayment

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raise_dispute

aiAgents.toolRaiseDispute

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request_refund

aiAgents.toolRequestRefund

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fund_web3_escrow

aiAgents.toolFundWeb3

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check_web3_status

aiAgents.toolCheckWeb3

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list_web3_escrows

aiAgents.toolListWeb3

ZeroDev

create_session_key

aiAgents.toolCreateSessionKey

Gasless

fund_with_session_key

aiAgents.toolFundSessionKey

Trading

register_agent_wallet

Register your AI agent wallet for discovery and trading with other agents

Trading

list_trade_offers

List open escrows and trade offers on-chain — find trading opportunities

Trading

accept_trade

Accept a trade offer — verify your role in an escrow and get next steps

ZeroDev Session Keys

ERC-4337 · Gasless · Scoped Permissions

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⛽ Gas Cost

$0

Kustodia Paymaster pays

🔒 Permissions

approve + fundEscrow

Scoped only — no arbitrary calls

⏱️ Expiry

24h

Auto-revoke + owner can revoke anytime

View full ZeroDev docs

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create_session_key
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create_web3_escrow
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fund_with_session_key
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aiAgents.csFieldEscrow #14
Arbitrum Sepolia
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aiAgents.csFieldNetworkArbitrum Sepolia (421614)
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Compatible Platforms

Works With Every AI Agent

Kustodia supports x402 and MCP — the two standards AI agents use to discover and pay for services.

Coinbase CDP

✓ Live

Server Wallets sign transactions via CDP API. Agents autonomously create, fund, and verify escrows on Base, Arbitrum, and Polygon.

AgentKitServer Wallet v2x402 PaymentsSIWE Auth
View Coinbase docs

OpenAI / ChatGPT

✓ Live via MCP

ChatGPT and custom GPTs connect via MCP Server. 21 escrow tools available — fiat, web3, ZeroDev gasless, and agent-to-agent trading.

MCP Server21 ToolsAPI Key Auth

Claude MCP

✓ Live

Add Kustodia to Claude Desktop in one config line. Claude can create escrows, check rates, and release funds autonomously.

MCP NativeSSE TransportZero Setup

Alchemy Agents

x402 Compatible ✓

Alchemy agents discover Kustodia via x402 and pay with USDC on Base. Full access to 100+ chain data through Alchemy's RPC and Token APIs.

Agentic Gatewayx402 USDCSIWE Auth100+ Chains
Alchemy agent docs

Google AP2

Agent Payments Protocol — Mandate-based escrow with VC verification

Adapter Live

Visa Trusted Agent

Enterprise agent protocol — pilot application submitted

Coming Soon

Agent-to-Agent Trading

AI agents trade with each other using on-chain escrow

Any AI agent — Claude, ChatGPT, LangChain bots, or custom agents — can trade with other agents using Kustodia's escrow. Each agent uses its own wallet (CDP, ZeroDev, or EOA) and all trades are settled on-chain.

1

Register Wallet

Agent calls register_agent_wallet to make itself discoverable to other agents.

2

Create & Fund Escrow

Buyer agent creates escrow with seller as payee, then funds it (gasless with ZeroDev or direct).

3

Deliver & Release

Seller delivers goods/service. Buyer releases USDC to seller on-chain. Dispute if needed.

ArbitrumBasePolygonUSDCUSDTGasless via ZeroDevx402 Pay-Per-Call

Buyer Agent

Claude / GPT / Custom

create_web3_escrowfund_web3_escrow

KustodiaEscrow

Smart Contract · Arbitrum

USDCUSDT
release_web3_escrowaccept_trade

Seller Agent

LangChain / Coinbase CDP

Looking for milestone-based crowdfunding? Explore crowdfunding escrow →

Get Started

Connect Your Agent in 3 Steps

No local install needed. Get an API key and start making agentic payments in under 5 minutes.

1

Create an Account

Sign up at kustodia.app — it's free. No credit card required.

Register now
2

Create an Agent Key

Go to Dashboard → Developers → Agent Keys. Create a sk_live_... key with optional spending limits.

Go to Developers
3

Connect Your Agent

Use the hosted MCP server URL or x402 HTTP endpoint. No local code needed.

MCP: api.kustodia.app/api/v1/mcp/sse
x402: api.kustodia.app/api/v1/mcp/x402

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// POST /api/v1/mcp
// Authorization: Bearer kus_live_sk_...

{
  "tool": "create_escrow",
  "params": {
    "amount": 25000,
    "currency": "USD",
    "payer_email": "buyer@company.com",
    "recipient_email": "seller@vendor.com",
    "description": "Enterprise API license",
    "payout_currency": "MXN",
    "custody_days": 14
  }
}

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