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NewBotLabor Agent Preflight
x402
NewBotLabor Agent Preflight is a paid API for AI agents from newbotlabor--254ecdfcc2de11f19b541607ee4eb77e.web.val.run, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-12).
Inspects an x402-enabled endpoint URL to determine if it is payable, returning pricing, network, and compliance details before an agent commits funds.
Price / call$0.002
Success—
StatusUnknown
How this service works
Pay-per-call utilities for autonomous agents, paid with x402 (USDC on Base, or USDC/USDT on Celo; no account, no API key).
Output
Returns a JSON object with: a boolean isX402 indicating x402 support, a verdict string (e.g. 'payable_ok'), the x402 protocol version, the cheapest mainnet USDC price with network ID and canonical asset flag, and an issues array listing any problems found with the endpoint's x402 configuration.
Example use cases
Budget gate before agent API call
“Check whether https://newbotlabor--254ecdfcc2de11f19b541607ee4eb77e.web.val.run/api/x402/weather is x402-compatible and tell me its USDC price on Base before I allow my agent to call it — reject it if it costs more than $0.03.”
Validate canonical USDC before payment
“Preflight the x402 endpoint at https://api.someservice.xyz/v1/search to confirm it accepts canonical USDC on mainnet Base and flag any compliance issues I should know about.”
Scout unknown API for agent workflow
“I found this endpoint https://thirdparty.io/api/premium and I want to know if it supports x402, what network it uses, and what it costs in USD before I wire it into my agent pipeline.”
Technical details
Endpoint
GEThttps://newbotlabor--254ecdfcc2de11f19b541607ee4eb77e.web.val.run/api/x402/preflight?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to safely inspect an unknown or untrusted x402-gated API before committing USDC funds — especially to enforce budget caps, confirm canonical USDC on Base mainnet, and catch misconfigured payment headers before a real call is made. Prefer this over calling the target endpoint directly when cost or network compliance is uncertain.
Side effects
- Target URL does not support x402 — returns isX402: false with an empty cheapestMainnetUsdc
- Target URL is unreachable or times out — may return an error or non-x402 verdict
- Price exceeds maxUsd threshold — verdict may indicate not payable within budget
- Malformed or missing url query parameter — request rejected with validation error
- x402 headers present but non-canonical USDC asset — assetIsCanonicalUSDC returns false with issues listed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"isX402": true,
"issues": [],
"verdict": "payable_ok",
"x402Version": 2,
"cheapestMainnetUsdc": {
"network": "eip155:8453",
"priceUsd": 0.01,
"assetIsCanonicalUSDC": true
}
}
}Tags
x402
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