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Neuronto x402 Payment Facilitator
x402
Neuronto x402 Payment Facilitator is a paid API for AI agents from pay.neuronto.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-11).
Verifies and settles on-chain USDC micropayments for AI agents and APIs using the x402 payment protocol, with no funds held by the facilitator.
Price / call$0.001
Success—
StatusUnknown
How this service works
An x402 payment facilitator: verify and settle USDC payments signed by AI agents, on-chain, with one URL in any x402 SDK and no funds held.
Output
Returns a JSON response confirming whether the x402 USDC payment was successfully verified and settled on-chain. Includes payment status and settlement confirmation, allowing the calling agent or API gateway to know whether to grant access or fulfill the request.
Example use cases
AI agent autonomous API payment
“My AI agent needs to pay for access to a rate-limited API automatically — can you use the Neuronto x402 facilitator to verify and settle the $0.001 USDC payment the agent signed so it can proceed with the API call?”
x402 SDK integration test
“I'm building an x402-enabled API and want to test that my payment flow works end-to-end — can you run a test payment through the Neuronto facilitator at pay.neuronto.com to confirm the USDC settlement goes through on-chain?”
Gatekeeping API content behind micropayment
“I want to make sure the payment header my agent sent is valid and the USDC has settled on-chain before I deliver the API response — can you check that through the Neuronto x402 payment facilitator?”
Technical details
Endpoint
GEThttps://pay.neuronto.com/echo?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a custodian-free, on-chain USDC micropayment facilitator that is compatible with the x402 protocol and requires no funds to be held in escrow. Ideal for AI agents that must autonomously pay for API access at $0.001 USDC per call, especially when integrating with an existing x402 SDK and needing a single facilitator URL.
Side effects
- Invalid or malformed payment header — returns 402 Payment Required if no valid x402 header is provided
- Insufficient USDC balance — payment cannot be settled if agent wallet lacks funds
- Invalid signature — payment rejected if the agent's cryptographic signature does not verify
- Network/chain issues — on-chain settlement may fail during blockchain congestion
- Incorrect payment amount — payment rejected if the signed amount does not match the required $0.001 USDC
Output
Schema · Response
{
"type": "application/json"
}Tags
x402
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