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Anvil Shape — UI/Copy/JSON Verdict Engine
x402
Anvil Shape — UI/Copy/JSON Verdict Engine is a paid API for AI agents from anvil-ten-sigma.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Analyzes a UI, copy, page, or JSON blob and returns a guaranteed ship/fix/rewrite verdict with scored issues and actionable fixes.
Price / call$0.05
Success—
StatusUnknown
How this service works
Shape a messy UI, copy, page or JSON blob into a guaranteed ship | fix | rewrite verdict.
Output
A JSON object containing: a verdict string ('ship', 'fix', or 'rewrite'), a numeric quality score (0–100), an array of issues each with a code, severity, location ('where'), and suggested fix text, and a schema identifier. Blocking issues are flagged with severity 'block'.
Example use cases
Pre-launch copy readiness check
“Before we ship the new pricing page, run it through Anvil and tell me the verdict — ship, fix, or rewrite — plus the quality score and any copy issues flagged as blockers.”
UI JSON component audit
“I've got this JSON blob describing our checkout UI — can you send it to Anvil and get back a score and a list of issues with suggested fixes? I want to know if it's shippable as-is.”
Marketing copy filler detection
“Check my onboarding email copy with Anvil — I want to know if it's passing or if there's AI filler or vague claims dragging the score down, and what specifically I need to rewrite.”
Technical details
Endpoint
POSThttps://anvil-ten-sigma.vercel.app/v1/shapeWhen to prefer
Choose this endpoint when you need a fast, structured, opinionated verdict on whether UI copy, a page, or a JSON blob is ready to ship — especially when you want machine-readable issue codes with severity levels rather than freeform editorial feedback. Prefer it over generic LLM review when you need a consistent scoring rubric, deterministic 'ship/fix/rewrite' output, and actionable per-issue fix suggestions tied to specific locations in the content.
Side effects
- Missing required 'input' field returns validation error
- Non-POST method enum value rejected at schema level
- Malformed or empty body may return low score with generic issues
- Payment failure (x402) if USDC balance insufficient — endpoint returns 402 before processing
- Ambiguous or empty input content may produce low-confidence verdicts
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": false,
"score": 72,
"issues": [
{
"fix": "Remove AI filler and ship a concrete claim.",
"code": "copy.filler",
"where": "body",
"severity": "block"
}
],
"schema": "anvil.shape.v1",
"verdict": "fix",
"canonical": null
}
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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