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fastapi.online — Congratulations Message Generator
x402
fastapi.online — Congratulations Message Generator is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Generates a congratulations message for a given occasion using AI
Price / call$0.001
Success—
StatusUnknown
How this service works
Chat, embeddings, OCR, speech-to-text, image editing, image understanding (captioning/Q&A), text-to-speech, translation, writing tools, classification tools, developer tools, local utilities, format/checksum validators, encoding & crypto utilities, date/time calculators, geo/coordinate math, math & finance calculators, novelty tools, and business/social writing generators — 179 endpoints in all, across multiple specialized self-hosted models. Pay per call with crypto — no signup — or get an API key.
Output
A generated congratulations message tailored to the specified occasion, returned as a text string suitable for sharing directly or adapting for cards, emails, or social posts.
Example use cases
Graduation congratulations for a student
“Write a heartfelt congratulations message for my niece who just graduated from medical school.”
Work promotion celebratory note
“Generate a congratulations message for my team member Alex who was just promoted to VP of Engineering.”
Wedding congratulations message
“I need a warm and celebratory congratulations message for my friends who just got married — can you write one?”
Technical details
Endpoint
POSThttps://api.fastapi.online/congratulations-message-generateWhen to prefer
Choose this endpoint when you need a quick, AI-generated congratulations message for any occasion without needing to integrate a full LLM API. It requires no signup and accepts per-call crypto payment, making it ideal for lightweight automation or agentic workflows where bespoke celebratory text is needed on demand.
Side effects
- Empty or missing 'occasion' field returns a validation error
- Occasion string exceeding 500 characters is rejected
- Payment not included results in a 402 Payment Required response
- Server-side model errors may return 500 with no message generated
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| occasion | string |
Tags
x402
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