# Relaystation Image Content Moderation

> Relaystation Image Content Moderation is a paid API for AI agents from api.relaystation.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Analyzes an image URL and flags unsafe or inappropriate content using AWS Rekognition, returning moderation categories with confidence scores

## Facts

- Endpoint: POST https://api.relaystation.ai/v1/vision/moderate
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/relaystation-image-content-moderation-93326218
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L8bChv0D8ehh1VJ7KZZa8

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 relaystation-image-content-moderation-93326218 -d '<json body>'
```

Example prompt: Can you check whether this image is safe to publish — flag any inappropriate or adult content categories and tell me the confidence level for each: https://example.com/uploads/user-photo.jpg

## When to prefer this

Choose this endpoint when you need fast, category-level image safety classification backed by AWS Rekognition — ideal for automated pipelines screening user-generated content, marketplace listings, or social media images where you need structured confidence scores per moderation category. Prefer this over general-purpose vision LLMs when you want deterministic, reproducible moderation labels at low per-image cost ($0.005) without needing free-text descriptions.

## Known failure modes

- Invalid or inaccessible image URL returns an error (URL must be publicly reachable)
- Unsupported image format or corrupted image file returns a processing error
- Image too large or dimensions out of supported range may be rejected
- Payment failure or insufficient balance results in a 402 Payment Required response
- Low-quality or ambiguous images may yield low-confidence results or no labels

## How this service works

$0.005/image. Flag unsafe or inappropriate image content (Rekognition moderation) — categories with confidence. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

## Output

A JSON object containing a list of moderation labels detected in the image, each with the category name (e.g. 'Explicit Nudity', 'Violence', 'Suggestive') and a confidence score (0–100) indicating how likely that category applies. Categories with no detected issues may be absent or scored at zero.

## 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": {
     "type": "object",
     "properties": {
      "file": {
       "type": "object",
       "description": "cputools input-source: { inline: <base64 ≤ 4 MiB> } or { inputKey: <scratch key from /v1/cputools/upload-url, ≤ 50 MB> }."
      },
      "minConfidence": {
       "type": "number",
       "maximum": 100,
       "minimum": 0
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/relaystation-image-content-moderation-93326218/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.relaystation.ai](https://www.zero.xyz/host/api.relaystation.ai/llms.txt)