78trust / 100
Preflight Tool Call
by Agent Preflight in Weather & location
x402 APIPassing, checked 3 h ago
Pre-execution decision for a metered search or browse tool call. Evaluates the proposal; does not execute the external tool.
POST https://api.agent-preflight.com/v0.2/preflight/tool-call
Last 30 days
All checks passedSome failedAll failedNot checked
- Uptime
- 100%
- Response time
- 511 ms typical, 675 ms slowest 5%
- Last check
- 3 h ago
- Next check
- any minute now
How to call it
# See the payment challenge (nothing is charged)
curl -i -X POST "https://api.agent-preflight.com/v0.2/preflight/tool-call" \
-H "content-type: application/json" \
-d '{"budget":{"maxToolCallsRemaining":4,"remainingUsd":0.08,"reservedUsd":0.02},"history":[],"runId":"settlement-check-01","stepId":"paid-call-01","task":{"goalHash":"settlement-verification"},"tool":{"estimatedExternalCostUsd":0.01,"estimatedModelCostUsd":0.002,"operation":"web_search","provider":"search","request":{"max_results":5,"query":"Acme Corp Series B funding"}}}'import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";
const client = new x402Client().register(
"eip155:8453",
new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);
// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.agent-preflight.com%2Fv0.2%2Fpreflight%2Ftool-call
const res = await pay("https://api.agent-preflight.com/v0.2/preflight/tool-call", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({"budget":{"maxToolCallsRemaining":4,"remainingUsd":0.08,"reservedUsd":0.02},"history":[],"runId":"settlement-check-01","stepId":"paid-call-01","task":{"goalHash":"settlement-verification"},"tool":{"estimatedExternalCostUsd":0.01,"estimatedModelCostUsd":0.002,"operation":"web_search","provider":"search","request":{"max_results":5,"query":"Acme Corp Series B funding"}}}),
});
console.log(await res.json());Example input
{
"budget": {
"maxToolCallsRemaining": 4,
"remainingUsd": 0.08,
"reservedUsd": 0.02
},
"history": [],
"runId": "settlement-check-01",
"stepId": "paid-call-01",
"task": {
"goalHash": "settlement-verification"
},
"tool": {
"estimatedExternalCostUsd": 0.01,
"estimatedModelCostUsd": 0.002,
"operation": "web_search",
"provider": "search",
"request": {
"max_results": 5,
"query": "Acme Corp Series B funding"
}
}
}Example output
{
"decision": "allow",
"enforcement": "execute",
"estimated": {
"avoidableExternalCostUsd": 0,
"avoidableModelCostUsd": 0,
"billable": false,
"confidence": 0.5,
"netSavingsUsd": 0,
"preflightCostUsd": 0,
"priceChargedUsd": 0
},
"issues": [],
"reasonCodes": [
"NO_PROVEN_WASTE"
],
"requestFingerprint": "f2aa17128536fec8262229a5654e49e9abc18f7f7387cb571a0d035906da9e0f"
}Security scan
- No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.
Recent checks
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 3 h ago | Passed | 402 | 381 ms | $0.002 |
| 6 h ago | Passed | 402 | 385 ms | $0.002 |
| 10 h ago | Passed | 402 | 511 ms | $0.002 |
| 13 h ago | Passed | 402 | 583 ms | $0.002 |
| 17 h ago | Passed | 402 | 600 ms | $0.002 |
| 21 h ago | Passed | 402 | 675 ms | $0.002 |
| 24 h ago | Passed | 402 | 422 ms | $0.002 |
| 29 h ago | Passed | 402 | 335 ms | $0.002 |
| 32 h ago | Passed | 402 | 445 ms | $0.002 |
| 35 h ago | Passed | 402 | 620 ms | $0.002 |
| 40 h ago | Passed | 402 | 808 ms | $0.002 |