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Delx Commerce — X402 Copy Completeness Check
x402
Delx Commerce — X402 Copy Completeness 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).
Validates whether a text description meets a minimum length and contains required terms, returning a pass/fail result with evidence of verifiable, in-memory processing.
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 character length of the description, a boolean 'complete' field, a list of any missing terms, a pass/fail status, the operation name, and an evidence block containing the input SHA256 hash, a flag confirming no data was retained, and the count of external calls made (always 0), ensuring verifiable, tamper-evident delivery.
Example use cases
Pre-publish listing validation
“Before I list my new API on the x402 marketplace, can you check if the description 'Instant currency conversion with live FX rates for 150+ currencies' for service 'FXSnap' meets the 80-character minimum and has no missing required terms?”
Automated copy quality gate
“Run a completeness check on this copy for my agent service — service name is 'DocSummarizer', description is 'Summarizes legal and technical documents into plain English using AI', minimum length 60 — does it pass?”
Iterating on underperforming listings
“My listing keeps getting flagged. Can you check if 'Fast image resize' for service 'PixelFit' meets a minimum length of 120 characters and tell me what terms are missing?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/x402-copy-completeness-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call, verifiable check on whether a piece of copy (such as an API description or service listing) meets a minimum character length and contains no missing required terms — especially in automated agent pipelines where tamper-evident evidence (SHA256 hash, no-retention guarantee) matters. Prefer it over manual review or heavyweight NLP APIs when the task is purely structural completeness validation rather than semantic quality assessment.
Side effects
- Missing required fields (description or minimum_length) result in a validation error
- Description exceeding 8192 characters is rejected
- Non-integer minimum_length value causes a schema error
- Network or payment failure via x402 protocol returns a 402 response before processing begins
- Malformed JSON body returns a 400-level error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| description | string | Description supplied to X402 Copy Completeness Check; used only for this bounded calculation and processed in memory without retention. |
| service_name | string | Service Name supplied to X402 Copy Completeness Check; used only for this bounded calculation and processed in memory without retention. |
| minimum_length | integer | Minimum Length supplied to X402 Copy Completeness Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"length": 138,
"complete": true,
"missing_terms": []
},
"schema": "delx/util-x402-copy-completeness-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "833317c02bc400cf4cafbeff7318dbf34c6940c0b4ca367968249af2f1998717",
"external_calls": 0
},
"operation": "delivery_contract:x402_copy_completeness_check"
}
}Tags
x402
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