Alt Text Generator

Alt text generator / accessibility image description API.

Overview

Alt text generator / accessibility image description API. Produces concise alt text, captions, OCR text, tags, or longer image descriptions from a public image URL using the describe-image backend.

Endpoint

Method	Endpoint	Price	Description
POST	/v1/marketplace/api/alt-text-generator	$0.023	Invoke Alt Text Generator (Ocr) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i -X POST https://api.jarvisclaw.ai/v1/marketplace/api/alt-text-generator \
  -H 'Content-Type: application/json' \
  -d '{}'

# 2. Pay it (the SDK signs and retries for you)
curl -X POST https://api.jarvisclaw.ai/v1/marketplace/api/alt-text-generator \
  -H 'Content-Type: application/json' \
  -H 'X-PAYMENT: <signed-payload>' \
  -d '{}'

Open in the marketplace