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Royal Feel — FTC Compliance Copy Linter
x402
Royal Feel — FTC Compliance Copy Linter is a paid API for AI agents from royal-feel-x402.fly.dev, paid per call via x402, $2/call, status unknown (last checked 2026-09-13).
Analyzes wellness or marketing copy for FTC compliance issues, flagging unqualified efficacy claims, disease treatment claims, weight loss hype, and unscientific buzzwords.
Price / call$2
Success—
StatusUnknown
How this service works
Pay $2.00 USDC, get an FTC compliance lint report on your wellness or marketing copy. Flags unqualified efficacy claims, disease treatment claims, weight loss hype, and unscientific buzzwords.
Output
Returns a JSON object with an `ok` boolean and a `findings` array. Each finding includes the offending term, a rule ID (e.g. FTC-FDA-APPROVED), the surrounding snippet, a severity level (e.g. 'block'), a plain-English explanation of the violation, and a suggested compliant rewrite.
Example use cases
Supplement ad pre-launch review
“Before we go live with this product page, can you lint the copy for FTC compliance? Here's the text: 'RenewVital is scientifically proven to cure joint pain, detoxify your liver, and boost testosterone by 300%. FDA approved and doctor recommended.' Flag anything that could get us in trouble.”
Weight loss marketing copy audit
“I'm writing ads for a new fat burner and need to make sure they're FTC-compliant — can you lint this line: 'Lose 30 pounds in 30 days, guaranteed! Clinically proven to eliminate obesity and treat metabolic syndrome.' Tell me the severity and how to rewrite it.”
Wellness brand copywriter QA
“Our copywriter submitted this for a CBD product: 'Our drops treat anxiety, depression, and chronic pain — no side effects, all-natural cure backed by science.' Can you run it through the FTC compliance linter and list every violation with suggested rewrites?”
Technical details
Endpoint
POSThttps://royal-feel-x402.fly.dev/api/lint-copyWhen to prefer
Choose this endpoint when you need rule-based, FTC-specific compliance checking of wellness, supplement, or health marketing copy — especially when you need structured findings with severity ratings and suggested rewrites. Prefer it over generic AI writing reviewers when you need traceable rule IDs (e.g. FTC-FDA-APPROVED) and actionable remediation guidance tied to specific regulatory frameworks.
Side effects
- Empty or missing copy body returns an error with ok: false
- Payment of $2 USDC not completed results in 402 Payment Required
- Malformed JSON body causes a parse error
- Very long copy may time out or exceed input limits
- Non-English copy may not be accurately analyzed for FTC context
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"findings": [
{
"term": "FDA approved",
"rule_id": "FTC-FDA-APPROVED",
"snippet": "...this supplement is FDA approved and safe...",
"severity": "block",
"explanation": "The FDA registers facilities but does NOT approve wellness products or dietary supplements.",
"suggested_rewrite": "Remove FDA approval claims. You may use: 'Manufactured in an FDA-registered facility...'"
}
]
}
}Tags
x402
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