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Delx Commerce — WWW-Authenticate Header Parser
x402
Delx Commerce — WWW-Authenticate Header Parser is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Parses a WWW-Authenticate HTTP header string into structured scheme and parameter components, returning verifiable results with no data retention.
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 containing the parsed WWW-Authenticate header value broken into its scheme/value string and a parameters map of key-value pairs extracted from the header. Also includes an evidence block confirming no data was retained (retained: false), the SHA-256 hash of the input for auditability, and a status field ('pass') indicating successful parsing. The operation field identifies this as a web_reliability utility.
Example use cases
Diagnosing a 401 auth challenge
“I just got a 401 response from an API with this header: 'Bearer realm="https://auth.example.com", error="insufficient_scope"' — can you parse that out and tell me the realm and error code?”
Handling x402 payment challenges
“My agent received a 402 response with a WWW-Authenticate header of 'Bearer realm="commerce.delx.ai", error="payment_required"' — parse it so I know where to send the payment and what error is being returned.”
Validating auth header format in CI
“Check this WWW-Authenticate header value and confirm it's correctly structured with a valid scheme and parameters: 'Basic realm="staging-api", charset="UTF-8"'.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/www-authenticate-parse?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent or automated workflow needs to programmatically interpret a WWW-Authenticate header — especially in x402 payment flows or 401/402 challenge handling — and requires verifiable, auditable parsing with a known fixed cost ($0.001 USDC) and no data retention. Prefer this over rolling your own parser when you need cryptographic evidence of the input processed (SHA-256 hash) and a guarantee of no external calls or data storage.
Side effects
- Malformed or empty header string may result in an empty parameters map or parsing error
- Header exceeding 8192 characters will be rejected
- Non-standard or custom authentication schemes may not be fully decomposed
- Missing or null header input returns a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| header | string | Header supplied to Www Authenticate Parse; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"value": "bearer realm=api, error=invalid_token",
"parameters": {}
},
"schema": "delx/util-www-authenticate-parse/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "4214e8b22b696222b9f2658c1f35c91515b02b4e02228ba03d6c3d0f684fac3e",
"external_calls": 0
},
"operation": "web_reliability:www_authenticate_parse"
}
}Tags
x402
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