# Royal Feel — FTC Compliance Copy Linter

> 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 2026-09-14).

Analyzes wellness or marketing copy and returns an FTC compliance lint report flagging unqualified efficacy claims, disease treatment claims, weight loss hype, and unscientific buzzwords.

## Facts

- Endpoint: POST https://royal-feel-x402.fly.dev/copy/lint
- Price: $2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/royal-feel-ftc-compliance-copy-linter-c9e443b5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kURwXA8d5vSEU1cz-XLlh

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability royal-feel-ftc-compliance-copy-linter-c9e443b5 -d '<json body>'
```

Example prompt: Can you run an FTC compliance lint check on this copy for my new supplement: 'This FDA-approved formula cures joint pain and burns fat fast — clinically proven results guaranteed!'? I need to know which claims are problematic and how to fix them.

## When to prefer this

Choose this endpoint when you need automated, rule-based FTC compliance screening of wellness or health marketing copy before publication. It is purpose-built for dietary supplement, weight loss, and wellness marketing contexts — not general grammar or brand tone review. Ideal when you need specific rule IDs and actionable rewrites rather than a generic legal opinion.

## Known failure modes

- Empty or missing body text returns an error response with ok: false
- Copy in unsupported languages may not be flagged correctly
- Payment of $2 USDC must succeed via x402 protocol or the request is rejected
- Extremely long copy may time out or exceed processing limits
- Borderline or novel buzzwords not in the ruleset may not be flagged

## 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 flagged term, a rule ID (e.g. FTC-FDA-APPROVED), the snippet of offending copy, a severity level (e.g. 'block'), a plain-English explanation of why it violates FTC guidelines, and a suggested rewrite to make the claim compliant.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "ok"
     ],
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "error": {
       "type": "string"
      },
      "findings": {
       "type": "array"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "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...'"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/royal-feel-ftc-compliance-copy-linter-c9e443b5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from royal-feel-x402.fly.dev](https://www.zero.xyz/host/royal-feel-x402.fly.dev/llms.txt)