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fastapi.online — AI-Powered Changelog Generator
x402
fastapi.online — AI-Powered Changelog Generator is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.0015/call, status unknown (last checked 2026-09-14).
Generates a formatted changelog from a list of git commits using a self-hosted AI model, with optional style control.
Price / call$0.0015
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
Returns a formatted changelog document as text, derived from the provided commit messages. The output is a structured, human-readable changelog suitable for release notes, GitHub releases, or documentation — organized and summarized by an AI model according to the requested style.
Example use cases
Automated release notes from git log
“I just ran git log and got a bunch of commit messages — can you turn them into a clean, human-readable changelog for the v2.3.0 release? Use a professional style. Here are the commits: 'feat: add dark mode toggle, fix: prevent crash on empty input, docs: update README, chore: remove deprecated API calls'.”
Open-source project release prep
“Help me generate a changelog for my open-source library's latest release. The commits are: 'feat: support Python 3.12, fix: handle unicode edge cases, perf: improve tokenizer speed by 30%, test: add regression tests for issue #88'. Use a friendly, community-facing style.”
Sprint summary changelog for team
“Can you create a changelog in a concise bullet-point style from this sprint's commits? Commits: 'feat: add CSV export, fix: dashboard loading spinner stuck, feat: user profile avatars, chore: migrate to new CI pipeline, fix: email validation regex'.”
Technical details
Endpoint
POSThttps://api.fastapi.online/changelog-generateWhen to prefer
Choose this endpoint when you need to automatically generate a changelog or release notes from raw git commit messages without setting up a local tool or CI pipeline integration. It's especially useful in agentic workflows that automate release documentation, or when you want AI-curated summarization rather than mechanical commit-list formatting. Prefer it over generic LLM prompts when you want a pay-per-call, no-signup solution with consistent changelog-oriented output.
Side effects
- Empty or missing commits field returns a validation error (minLength:1 enforced)
- Commits text exceeding 20,000 characters will be rejected
- Invalid or unrecognized style value may produce unexpected formatting
- Payment failure via x402 results in 402 response before processing begins
- Garbled or non-standard commit messages may produce low-quality or incoherent output
- Model inference timeout may occur for very large commit logs
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| style | string | |
| commits | string |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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