Image Caption

Image Caption API

AI/Computer VisionIncluded in SubscriptionUpdated 1 week ago

Image Caption is an AI-powered tool that generates descriptive captions for images. Simply upload an image and receive a natural language description of its contents.

Online
10 credit/call
99.9% uptime
Docs
avg: 1847ms|p50: 1681ms|p75: 1958ms|p90: 2290ms|p99: 2955ms
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Online
10 credit/call
99.9% uptime
Docs
avg: 1847ms|p50: 1681ms|p90: 2290ms|p99: 2955ms

Live Test API

Try out the Image Caption with a live request and see the response in real-time.

API Request

POST
https://api.apiverve.com
File Upload

Click or drag file to upload

Accepted: .jpg, .jpeg, .png, .gif

Max 400KB for live testing

API Response

200 OK
1234567
{
  "status": "ok",
  "error": null,
  "data": {
    "caption": "A golden retriever running through a grassy field on a sunny day"
  }
}

Multiple Access Methods

REST API with multiple response formats, GraphQL, and MCP for AI agents

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JSON

JavaScript Object Notation

XML

Extensible Markup Language

YAML

Human-readable data format

CSV

Comma-separated values

BETA

GraphQL

Query language for APIs

NEW

MCP

AI agent integration

Zero-Code Integration

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Developer SDKs

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NuGet

.NET / C#
Ready
NuGetDocs

PyPI

Python
Ready
PyPIDocs

NPM

Node.js / JavaScript
Ready
NPMDocs
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Frequently Asked Questions

Get answers to common questions about the Image Caption API

Who built the Image Caption API?

The Image Caption API is built and maintained by APIVerve. All 300+ APIs on our platform are developed in-house by the APIVerve team, ensuring consistent quality, unified authentication, predictable pricing, and enterprise-grade reliability backed by our 99.9% uptime SLA. We handle the infrastructure, maintenance, and updates so you can focus on building your application.

What does the Image Caption API do?

Image Caption is an AI-powered tool that generates descriptive captions for images. Simply upload an image and receive a natural language description of its contents. The API returns structured data in JSON, XML, or YAML format, making it easy to integrate into any application or workflow.

How fast is the Image Caption API?

The Image Caption API has an average response time of 1847ms, with a median (p50) of 1681ms and 99th percentile of 2955ms. Our infrastructure maintains 99.9% uptime with servers distributed globally for low latency.

How much does the Image Caption API cost?

Each call to the Image Caption API uses 10 credits. The free tier includes 100 credits per month. Paid plans start at $29.99/month with higher limits, and enterprise plans offer custom pricing with priority support.

How do I authenticate Image Caption API requests?

Include your API key in the request header as X-API-Key: your_key_here. All requests are made over HTTPS for security. You can get your API key by signing up for a free account.

What HTTP methods does Image Caption support?

The Image Caption API supports POST requests. Use POST for sending larger payloads or complex data structures. Check our documentation for detailed parameter specifications.

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