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Delx Path Safety Check
x402
Delx Path Safety Check is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).
Evaluates an untrusted file/URL path string for unsafe parent-segment signals (e.g. directory traversal) and returns a deterministic machine-readable JSON safety assessment.
Price / call$0.003
Success—
StatusUnknown
How this service works
Evaluate an untrusted path for unsafe parent-segment signals without returning secret data. Use it as a bounded preflight or analysis step inside an enterprise agent workflow before data, policy, integration, security, or commercial decisions reach production. Returns deterministic machine-readable JSON for $0.003 USDC via x402 on Base. Execution is first-party, local-only, stateless, memory-only, and has no paid upstream or input retention. Results are advisory; the caller remains responsible…
Output
Returns a deterministic machine-readable JSON object indicating whether the input path contains unsafe parent-segment signals (e.g. directory traversal sequences), along with advisory risk classifications. The response is stateless and does not retain the input path.
Example use cases
Preflight check before file read
“We're about to load a config file from a user-supplied path — can you check whether '../../../etc/shadow' is safe to use, or if it has directory traversal signals we should block?”
Validate webhook-supplied path in pipeline
“Our integration pipeline just received the path '/data/reports/../../secrets/keys.json' from an external webhook — run a path safety check on it before we allow it to proceed to the next stage.”
Security audit of batch upload paths
“A user submitted the upload path '/media/images/../../../var/www/html/shell.php' — can you evaluate it for unsafe parent-segment signals so our agent can decide whether to reject the request?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/path-safety-checkWhen to prefer
Use this endpoint when you need a lightweight, stateless, deterministic preflight check on an untrusted path string before allowing it to propagate through a data pipeline, file operation, or security-sensitive workflow. Prefer it over building custom regex logic when you want a machine-readable JSON result with no data retention. It is well-suited for enterprise agent workflows where path traversal detection is one bounded step among many.
Side effects
- Missing or empty 'path' field returns an error response
- Malformed request body results in a 4xx error
- Payment not included or insufficient USDC via x402 returns a 402 Payment Required response
- Path strings that are extremely long may be rejected or truncated
- Results are advisory only — false negatives are possible for novel obfuscation patterns
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| path | string | Input field: path. |
Output
Schema · Response
{
"type": "json",
"example": {
"risk": "low",
"schema": "delx/util-path-safety-check/v1",
"advisory": "Heuristic only; use parameterization, contextual encoding, and allowlists.",
"text_sha256": "873456cf6e41efa219c32b5b9c782135f2d5a425db8d703eaccc783982e0fa7b",
"signal_count": 0,
"values_returned": false
}
}Tags
x402
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