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apiacre.com Code Change Review
x402
apiacre.com Code Change Review is a paid API for AI agents from apiacre.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-10).
Compares before/after source code snapshots to return syntax validation, structural deltas, function-level changes, complexity metrics, and bounded review findings without executing code or making network requests.
Price / call$0.05
Success—
StatusUnknown
How this service works
Compare caller-supplied before and after source snapshots without execution or network access, returning source fingerprints, syntax regressions, structural deltas, function-level changes, and bounded review findings.
Output
Returns a JSON object containing: SHA-256 fingerprints and byte counts for both snapshots, syntax validity per version, line/code/comment counts, estimated cyclomatic complexity, maintainability signal scores, a summary delta object (line delta, complexity delta, branch point delta, etc.), a list of findings with severity and evidence, an attention level (low/medium/high), a review decision, function-level changes (added, removed, changed with parameter and complexity deltas), and execution/network access confirmation flags.
Example use cases
Pre-merge code quality gate
“Before I merge this pull request, compare the before and after versions of payment_processor.py and tell me if cyclomatic complexity increased, any functions were removed, and whether the syntax is still valid in both versions.”
Detect accidental TODO markers in commit
“I just updated auth_service.py — can you diff the old and new source and flag if any TODO, FIXME, or HACK markers were accidentally introduced in the new version?”
Refactor impact assessment
“I refactored my data_pipeline.py to split one large function into smaller ones — compare the before and after snapshots and give me the maintainability score delta, function count change, and overall review decision.”
Technical details
Endpoint
POSThttps://apiacre.com/v1/developer/code-change-review?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need deterministic, static code-metrics comparison between two source snapshots without executing code or touching the network — especially when you want structured, machine-readable deltas (complexity, maintainability, branch points, function signatures) and bounded review findings with severity levels. Prefer it over LLM-based code review when reproducibility and fingerprint-level auditability matter, or when you need to enforce a code quality gate in an automated pipeline.
Side effects
- Invalid or unparseable source code in either snapshot causes syntax engine to report an error and may limit function-level diff
- Truncated function lists when code is very large reduce completeness of function-level deltas
- Renamed functions appear as one removal plus one addition rather than a rename
- Language not supported by the syntax engine falls back to limited analysis
- Missing required before or after fields returns a 4xx error
- Very large source snapshots may exceed payload limits
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| after | string | |
| before | string | |
| filename | — | |
| language | string |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"after": {
"lines": {
"code": 5,
"blank": 0,
"total": 5,
"comments": 0
},
"source": {
"sha256": "f37990278fe5bda7fdae643ec96f54997271ed3992cefdd5f407736c2...",
"utf8Bytes": 194,
"characters": 194
},
"classes": 0,
"functions": 1
},
"before": {
"lines": {
"code": 2,
"blank": 0,
"total": 2,
"comments": 0
},
"source": {
"sha256": "69316f24997a9cbf73019f697f3f2373e39da67d1835885998775037c...",
"utf8Bytes": 74,
"characters": 74
},
"classes": 0,
"functions": 1
},
"changed": true,
"summary": {
"lineDelta": 3,
"classDelta": 0,
"codeLineDelta": 3,
"functionDelta": 0
},
"analysis": {
"method": "two deterministic code-metrics snapshots plus Python func...",
"version": "apiacre-code-change-review/1",
"limitations": [
"Static heuristics do not prove runtime behavior, correctn...",
"Function-level deltas are complete only when both Python ...",
"Renamed functions appear as one removal and one addition."
]
},
"filename": "billing.py",
"findings": [
{
"id": "new-work-markers",
"message": "The change adds TODO, FIXME, HACK, or XXX markers.",
"evidence": {
"added": 1
},
"severity": "low"
}
],
"language": "python",
"execution": {
"codeExecuted": false,
"networkAccessed": false
},
"attentionLevel": "medium",
"attentionScore": 2,
"reviewDecision": "review",
"functionChanges": {
"added": [],
"addedCount": 0,
"changedCount": 1,
"removedCount": 0
}
},
"meta": {
"cached": false,
"sources": [],
"warnings": [],
"duration_ms": 42,
"next_actions": [
{
"title": "Document diff",
"method": "POST",
"reason": "Inspect exact line additions, removals, and a bounded uni...",
"service": "document.diff"
}
]
},
"service": "developer.code-change-review",
"version": "1",
"request_id": "018f1f54-7f38-7ba2-8dc3-5f90272d9f1a"
}
}Tags
x402
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