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A2A Cross-Chain Settler
x402
A2A Cross-Chain Settler is a paid API for AI agents from swarm-protocol.onrender.com, paid per call via x402, $0.2/call, status unknown (last checked 2026-10-12).
Settles agent-to-agent cross-chain transactions using micropayments on Base Mainnet USDC via the x402 protocol
Price / call$0.2
Success—
StatusUnknown
How this service works
Machine-payable protocol for autonomous AI agent commerce. Monetized tools secured by x402 micropayments on Base Mainnet USDC.
Output
Returns a JSON object with a status field ('success' or error), the service name ('a2a_crosschain_settler'), and a data object containing the cross-chain settlement result details including transaction confirmation.
Example use cases
Agent fleet cross-chain payment settlement
“My AI agent just completed a service for another agent on a different chain — can you settle the cross-chain USDC payment between them using the Swarm Protocol's A2A settler on Base Mainnet?”
Autonomous DeFi agent transaction finalization
“I'm running an autonomous trading agent that needs to settle a cross-chain transaction in USDC on Base — use the A2A cross-chain settler to finalize it.”
Multi-agent commerce infrastructure payment
“Two of my agents completed a service exchange across different blockchains — can you invoke the cross-chain settler to confirm and record the final USDC settlement on Base Mainnet?”
Technical details
Endpoint
GEThttps://swarm-protocol.onrender.com/tools/a2a_crosschain_settler?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to programmatically settle a payment or value transfer between two autonomous agents across different blockchains, specifically using USDC on Base Mainnet via the x402 micropayment protocol. It is best suited for agent-to-agent commerce pipelines where sub-dollar, machine-initiated cross-chain settlements are required without human intervention.
Side effects
- Payment not received or insufficient USDC balance (402 Payment Required)
- Invalid or missing settlement parameters in request body
- Cross-chain routing failure due to unsupported chain pair
- Base Mainnet network congestion or RPC timeout
- Settlement already processed (duplicate transaction attempt)
- Service unavailable on Render hosting (cold start or downtime)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {},
"status": "success",
"service": "a2a_crosschain_settler"
}
}Tags
x402
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