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Delx Commerce DNS CNAME Chain Check
x402
Delx Commerce DNS CNAME Chain Check is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).
Resolves and validates the full CNAME chain for one or more DNS hostnames, reporting hop count, loop detection, and chain members up to a configurable max-hop budget.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object with the full ordered list of CNAME names in the chain, total hop count, a boolean indicating whether a loop was detected, and whether the chain resolved within the specified max-hop budget. Also includes evidence metadata: whether input was retained (always false), the SHA-256 hash of the input, and external call count.
Example use cases
CDN redirect chain audit
“Check the CNAME chain for cdn.myshop.com — I want to know all the intermediate hostnames, the total hop count, and whether there's any loop, with a max of 10 hops.”
Pre-deployment DNS sanity check
“Before we go live, can you verify the CNAME chain for staging.acme.io and make sure it resolves cleanly within 5 hops and doesn't loop back on itself?”
Multi-domain CNAME validation
“I need to check the CNAME chains for api.example.com, www.example.com, and mail.example.com — tell me if any of them have loops or exceed 8 hops.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/dns-cname-chain-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need programmatic, pay-per-call DNS CNAME chain resolution without signup — especially when validating CDN configurations, diagnosing redirect loops, or auditing multi-hop DNS setups. Prefer it over manual dig/nslookup when you need structured JSON output, loop detection, and hop-budget enforcement in an automated agent workflow. It is ideal for site reliability checks and pre-deployment DNS validation.
Side effects
- Invalid or non-existent hostname returns an empty or truncated chain
- CNAME loop detected returns loop:true and within_budget:false
- Exceeding max_hops budget returns within_budget:false
- Malformed input (non-string items, oversized array) returns a validation error
- Payment failure via x402 prevents execution entirely
- Network DNS resolution timeout may cause incomplete chain results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| names | array | Names supplied to DNS Cname Chain Check; used only for this bounded calculation and processed in memory without retention. |
| max_hops | integer | Max Hops supplied to DNS Cname Chain Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"hops": 2,
"loop": false,
"names": [
"www.example.com",
"edge.example.net",
"origin.example.net"
],
"within_budget": true
},
"schema": "delx/util-dns-cname-chain-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "5413dc5bf3dab733024514776f9526adadb0c9c3253d4fd4df6f85ea895c49ef",
"external_calls": 0
},
"operation": "web_reliability:dns_cname_chain_check"
}
}Tags
x402
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