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x402.dailyelo.com Pre-flight Safety Bundle
x402
x402.dailyelo.com Pre-flight Safety Bundle is a paid API for AI agents from x402.dailyelo.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).
Bundles signature-intent decode, live malicious-address + look-alike check, and standing-approval drainer audit into a single paid call before an agent signs or sends a transaction
Price / call$0.02
Success—
StatusUnknown
How this service works
One-call pre-transaction guard for agents: bundle the transaction you're about to sign/send and get every applicable safety check in a single payment — signature-intent decode, live threat-DB + address-poisoning look-alike on the recipient, and a drainer audit of standing approvals. By design no combined safe/danger verdict is emitted; each sub-check's flags & evidence come back verbatim so your agent decides. Replaces 4 separate 402 round-trips with 1. Deterministic, no LLM.
Output
Returns per-sub-check results verbatim: decoded human-readable intent from calldata or EIP-712 data, threat-DB hit flags and evidence for the recipient, address-poisoning look-alike similarity scores against known counterparties, and drainer risk flags with evidence for each standing approval — no combined verdict, agent decides based on raw flags.
Example use cases
Example prompt
“Before I send this transaction, run the full pre-flight safety bundle on it — decode the calldata 0xa9059cbb000000000000000000000000abcdef1234..., check if the recipient 0xAbCdEf1234567890... is malicious or looks like any of my trusted addresses [0xDEAD...beef, 0xFACE...cafe], and audit these standing approvals: USDC approved to spender 0x1234... for 1000000000.”
Technical details
Endpoint
POSThttps://x402.dailyelo.com/v1/preflightWhen to prefer
Use this endpoint when an agent needs to perform multiple pre-send safety checks (signature decode + recipient threat check + approval audit) and wants to avoid 3-4 separate paid round-trips. Ideal for automated agent pipelines that need deterministic, LLM-free safety signals before signing any EVM transaction. Prefer over individual sibling endpoints when latency and cost efficiency matter and all three checks are needed simultaneously.
Side effects
- Invalid or malformed 0x calldata returns a decode error for that sub-check while others proceed
- Recipient address not 0x-prefixed or wrong length returns address validation error
- Payment not included or insufficient USDC causes 402 rejection before any checks run
- typedData object missing required EIP-712 fields (domain/primaryType/message) causes decode failure
- Empty approvals array skips approval audit sub-check silently
- known_addresses containing malformed entries may cause look-alike sub-check to error or skip
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| calldata | string | 0x-prefixed transaction calldata to decode (alternative to typedData) |
| approvals | array | standing approvals to audit |
| recipient | string | 0x EVM address you are about to send to |
| typedData | object | EIP-712 typed data (domain/primaryType/message) to decode |
| known_addresses | array | your trusted counterparties (for look-alike detection) |
Output
Schema · Response
{
"type": "json",
"example": {
"checks": [
{
"ran": true,
"check": "sign-decode",
"result": {
"intent": "grant_allowance",
"action_hint": "ask_for_confirmation",
"spender_known": "Uniswap Universal Router v2"
},
"flagged": true,
"risk_flags": [
"unlimited_allowance"
]
},
{
"ran": true,
"check": "approval-risk",
"result": {
"summary": {
"revoke_now": 1
}
},
"flagged": true,
"risk_flags": [
"dangerous_approval_present"
]
},
{
"ran": true,
"check": "recipient-check",
"result": {
"verdict": "not_in_threat_db",
"action_hint": "no_known_threat"
},
"flagged": false,
"risk_flags": []
},
{
"ran": true,
"check": "address-poison-check",
"result": {
"verdict": "looks_unique"
},
"flagged": false,
"risk_flags": []
}
],
"ledger": {
"threat_db_size": 290,
"threat_db_updated_at": 1719500000
},
"schema": "preflight/v1",
"network": "eip155:8453",
"all_flags": [
"unlimited_allowance",
"dangerous_approval_present"
],
"checks_run": 4,
"confidence": 1,
"checks_flagged": 2
}
}Tags
x402
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