# RelayStation Vision Detect Labels

> RelayStation Vision Detect Labels 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).

Detects objects, scenes, and concepts in an image using AWS Rekognition, returning labels with confidence scores

## Facts

- Endpoint: POST https://api.relaystation.ai/v1/vision/detect-labels
- 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-vision-detect-labels-a6f97a55
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_s3MXIe4iurmymR3rFcrNy

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-vision-detect-labels-a6f97a55 -d '<json body>'
```

Example prompt: What objects and scenes are in this image? Give me each detected label and its confidence score — the image is at https://example.com/photo.jpg

## When to prefer this

Choose this endpoint when you need to identify what is present in an image — objects, scenes, and general concepts — with confidence scores. It is backed by AWS Rekognition, making it highly reliable for general-purpose label detection. Prefer it over face detection endpoints when you need non-face content classification, and over custom ML models when broad category coverage matters more than domain-specific precision. It's well-suited for tagging, content moderation, and catalog enrichment at low cost ($0.005/image).

## Known failure modes

- Image URL is inaccessible or returns a non-image response — endpoint cannot fetch the image
- Image format is unsupported — returns an error indicating unsupported media type
- Image file too large — exceeds Rekognition limits, returns size error
- Invalid request payload — missing required image parameter returns 400 bad request
- Insufficient x402 payment or credit balance — returns payment required error
- Network timeout when fetching remote image URL

## How this service works

$0.005/image. Detect objects, scenes, and concepts in an image (Rekognition) — labels with confidence scores. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

## Output

A list of labels (objects, scenes, concepts) detected in the image, each with a confidence score as a percentage. Labels may include physical objects (e.g. 'Car', 'Tree'), scenes (e.g. 'Beach', 'Office'), and abstract concepts (e.g. 'Adventure', 'Business').

## 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> }."
      },
      "maxLabels": {
       "type": "integer",
       "maximum": 100,
       "minimum": 1
      },
      "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-vision-detect-labels-a6f97a55/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)