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OmniAPI Instagram Caption Generator
x402
OmniAPI Instagram Caption Generator is a paid API for AI agents from omni-api-cyan.vercel.app, paid per call via x402, $0.123132/call, status unknown (last checked 2026-09-14).
Generates AI-written captions for Instagram posts based on a user-provided query or description
Price / call$0.123132
Success—
StatusUnknown
How this service works
444 endpoints across 9+ chains. Crypto, AI, Social, Finance, Weather, Tools. Pay per call in USDC via x402 with 4 facilitators: Dexter, Meridian, FluxA, GoPlausible.
Output
Returns a generated Instagram caption string tailored to the input query, typically including suggested hashtags and an engaging, platform-appropriate tone suited for Instagram audiences.
Example use cases
Travel photo caption for influencer
“I just posted a photo from my trip to Santorini with all the white buildings and blue domes — can you write me an Instagram caption that feels wanderlust-y and poetic, with some travel hashtags?”
Food brand product launch post
“Write an Instagram caption for our new oat milk latte product launch — keep it upbeat and modern, targeting health-conscious millennials, and add relevant coffee and wellness hashtags.”
Fitness motivation post caption
“I need an Instagram caption for a gym progress photo — something motivational and energetic that encourages people to keep pushing, with fitness hashtags included.”
Technical details
Endpoint
POSThttps://omni-api-cyan.vercel.app/api/ai/caption/instagramWhen to prefer
Choose this endpoint when you need a quick, pay-per-call AI-generated Instagram caption without committing to a subscription. It's well-suited for agents automating social media workflows or content pipelines that need Instagram-specific copy on demand, billed in USDC via x402.
Side effects
- Missing required 'query' field returns a validation error
- Vague or empty query may produce a generic or low-quality caption
- Payment failure via x402 results in a 402 Payment Required response before the caption is generated
- Server errors on the Vercel deployment may return 500 responses
- Overly long or complex queries may be truncated or misinterpreted
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | Input data for the endpoint |
| queryrequired | string | Search query or input text |
| params | object | Additional parameters |
Output
Schema · Response
{
"type": "object",
"description": "API response data"
}Tags
x402
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