# Services from api.fastapi.online on Zero

> api.fastapi.online serves 396 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/api.fastapi.online
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.fastapi.online/health.json

## Services

- [fastapi.online Speech-to-Text (STT)](https://www.zero.xyz/c/fastapi-online-speech-to-text-stt-d9986abb/llms.txt): $0.005/call via x402, rated 5.0/5 (1 review). Transcribes audio files (WAV, MP3, OGG, etc.) to text with language detection, timestamps, and segment-level detail, paid per call via crypto.
- [fastapi.online Voice Clone (Speech Synthesis from Reference Audio)](https://www.zero.xyz/c/fastapi-online-voice-clone-speech-synthesis-from-reference-audio-4761fe88/llms.txt): $0.05/call via x402. Clones a speaker's voice from a short reference audio clip and synthesizes new speech from provided text, returning a WAV audio file.
- [fastapi.online — AI-Powered Changelog Generator](https://www.zero.xyz/c/fastapi-online-ai-powered-changelog-generator-00ad454b/llms.txt): $0.0015/call via x402. Generates a formatted changelog from a list of git commits using a self-hosted AI model, with optional style control.
- [fastapi.online Sentiment Analysis](https://www.zero.xyz/c/fastapi-online-sentiment-analysis-a8c3cc36/llms.txt): $0.001/call via x402. Classifies input text as positive, negative, or neutral sentiment for $0.001 USDC per call with no signup required
- [fastapi.online — Food Photo Generator](https://www.zero.xyz/c/fastapi-online-food-photo-generator-8ba68d78/llms.txt): $0.012/call via x402. Generates a realistic AI food photograph for a specified dish name, with optional seed for reproducibility.
- [fastapi.online — Executive Summary Generator](https://www.zero.xyz/c/fastapi-online-executive-summary-generator-0f6b3b22/llms.txt): $0.0015/call via x402. Generates a concise executive summary from a long-form text document or content block
- [fastapi.online — Wedding Speech Generator](https://www.zero.xyz/c/fastapi-online-wedding-speech-generator-d6fe54f2/llms.txt): $0.0015/call via x402. Generates a personalized wedding speech based on the speaker's role and the couple's names
- [fastapi.online Text Translation](https://www.zero.xyz/c/fastapi-online-text-translation-4bcc821d/llms.txt): $0.001/call via x402. Translates text from one language to another, with optional source language specification and auto-detection
- [fastapi.online — Database Migration Script Generator](https://www.zero.xyz/c/fastapi-online-database-migration-script-generator-7d76a90e/llms.txt): $0.004/call via x402. Generates a database migration script for a given ORM (Prisma, Sequelize, or raw SQL) based on a described schema change
- [fastapi.online FAQ Answer Generator](https://www.zero.xyz/c/fastapi-online-faq-answer-generator-70eb483e/llms.txt): $0.001/call via x402. Generates a direct answer to a question given a provided context passage, using self-hosted AI inference.
- [fastapi.online — Interview Questions Generator](https://www.zero.xyz/c/fastapi-online-interview-questions-generator-c81e0f11/llms.txt): $0.0015/call via x402. Generates a list of interview questions tailored to a specific job role using self-hosted AI inference, paid per call with crypto.
- [fastapi.online Intent Classification](https://www.zero.xyz/c/fastapi-online-intent-classification-d2c13cea/llms.txt): $0.001/call via x402. Classifies a given text into one of several user-defined labels using self-hosted zero-shot or few-shot AI classification
- [fastapi.online — Meeting Minutes Generator](https://www.zero.xyz/c/fastapi-online-meeting-minutes-generator-1a1ff4b7/llms.txt): $0.002/call via x402. Generates structured meeting minutes from a raw meeting transcript using self-hosted AI inference, paid per call with crypto.
- [fastapi.online — Survey Question Generator](https://www.zero.xyz/c/fastapi-online-survey-question-generator-d3434e27/llms.txt): $0.001/call via x402. Generates a specified number of survey questions on a given topic using self-hosted AI inference
- [SWOT Analysis Generator](https://www.zero.xyz/c/swot-analysis-generator-b6a17bbf/llms.txt): $0.0015/call via x402. Generates a structured SWOT analysis (Strengths, Weaknesses, Opportunities, Threats) for any given subject using AI inference
- [fastapi.online — Docstring Generator](https://www.zero.xyz/c/fastapi-online-docstring-generator-6b9db94b/llms.txt): $0.001/call via x402. Generates docstrings for a given code snippet in a specified documentation style
- [fastapi.online Text-to-Speech (TTS)](https://www.zero.xyz/c/fastapi-online-text-to-speech-tts-452275e8/llms.txt): $0.002/call via x402. Converts input text to audio using AI synthesis, returning base64-encoded audio with engine and format metadata
- [fastapi.online — Image EXIF Strip](https://www.zero.xyz/c/fastapi-online-image-exif-strip-b5707b5a/llms.txt): $0.001/call via x402. Removes all EXIF metadata from an image file (PNG/JPEG/WebP) and returns the cleaned image
- [fastapi.online — Case Convert](https://www.zero.xyz/c/fastapi-online-case-convert-7986d540/llms.txt): $0.0005/call via x402. Converts a text string to a specified programming or writing case style (camelCase, snake_case, kebab-case, etc.)
- [fastapi.online OCR — Image Text Extraction](https://www.zero.xyz/c/fastapi-online-ocr-image-text-extraction-56bd6c17/llms.txt): $0.001/call via x402. Extracts text and line-by-line content from PNG, JPEG, or WebP images using optical character recognition
- [fastapi.online — Meeting Agenda Generator](https://www.zero.xyz/c/fastapi-online-meeting-agenda-generator-d164da1a/llms.txt): $0.0015/call via x402. Generates a structured meeting agenda given a topic, list of attendees, and duration in minutes
- [fastapi.online — Generate Book Cover](https://www.zero.xyz/c/fastapi-online-generate-book-cover-140f086c/llms.txt): $0.012/call via x402. Generates an AI-created book cover image given a title, genre, and optional random seed
- [fastapi.online QR Code with Logo Generator](https://www.zero.xyz/c/fastapi-online-qr-code-with-logo-generator-6da59892/llms.txt): $0.0015/call via x402. Generates a QR code image embedding a custom logo from uploaded image files and content text
- [fastapi.online — Transcribe & Translate Audio](https://www.zero.xyz/c/fastapi-online-transcribe-translate-audio-d128c373/llms.txt): $0.006/call via x402. Transcribes an audio file to text and translates the transcript into a specified target language in a single call
- [fastapi.online Bio Generator](https://www.zero.xyz/c/fastapi-online-bio-generator-bf7bdfdc/llms.txt): $0.001/call via x402. Generates a professional bio or biography paragraph from provided facts about a person
- [fastapi.online — Paragraph from Bullets Generator](https://www.zero.xyz/c/fastapi-online-paragraph-from-bullets-generator-a0386848/llms.txt): $0.001/call via x402. Converts a list of bullet points into a coherent paragraph with a specified tone
- [fastapi.online — .gitignore File Generator](https://www.zero.xyz/c/fastapi-online-gitignore-file-generator-493f728c/llms.txt): $0.001/call via x402. Generates a .gitignore file tailored to a specified technology stack
- [fastapi.online HTML to Markdown Converter](https://www.zero.xyz/c/fastapi-online-html-to-markdown-converter-ac76203e/llms.txt): $0.0005/call via x402. Converts raw HTML content into clean Markdown format via a POST request, priced per call with crypto.
- [fastapi.online Hashtag Generator](https://www.zero.xyz/c/fastapi-online-hashtag-generator-2715d39b/llms.txt): $0.001/call via x402. Generates a specified number of relevant hashtags for a given piece of content using self-hosted AI inference
- [fastapi.online — Press Release Generator](https://www.zero.xyz/c/fastapi-online-press-release-generator-aea4a4d9/llms.txt): $0.002/call via x402. Generates a professional press release for a company based on a provided announcement topic or content.
- [fastapi.online — Anime Image Generator](https://www.zero.xyz/c/fastapi-online-anime-image-generator-6f462ae5/llms.txt): $0.012/call via x402. Generates anime-style images from a text description and optional seed using a self-hosted AI model, billed per call via crypto.
- [fastapi.online — Simplify Text](https://www.zero.xyz/c/fastapi-online-simplify-text-90c74f84/llms.txt): $0.001/call via x402. Rewrites text into simpler, easier-to-understand language at a specified reading level
- [fastapi.online Background Removal](https://www.zero.xyz/c/fastapi-online-background-removal-872e2146/llms.txt): $0.005/call via x402. Removes the background from an uploaded image (PNG/JPEG/WebP) and returns the result as a base64-encoded image
- [fastapi.online Timezone Converter](https://www.zero.xyz/c/fastapi-online-timezone-converter-d48ce6c3/llms.txt): $0.0005/call via x402. Converts a datetime from one IANA timezone to another, returning the equivalent local time in the target timezone.
- [fastapi.online — Generate Dockerfile](https://www.zero.xyz/c/fastapi-online-generate-dockerfile-03ddd185/llms.txt): $0.005/call via x402. Generates a Dockerfile for a specified application stack using AI-powered inference
- [fastapi.online CEFR Level Estimator](https://www.zero.xyz/c/fastapi-online-cefr-level-estimator-6f00d6e8/llms.txt): $0.001/call via x402. Estimates the CEFR language proficiency level (A1–C2) of a given text sample using AI inference
- [fastapi.online Joke Generator](https://www.zero.xyz/c/fastapi-online-joke-generator-273e3a19/llms.txt): $0.001/call via x402. Generates a joke on a given topic using a self-hosted AI model, pay-per-call via crypto
- [fastapi.online Code Explainer](https://www.zero.xyz/c/fastapi-online-code-explainer-648482f6/llms.txt): $0.001/call via x402. Explains a given code snippet in plain language, identifying what it does and how it works
- [fastapi.online — Product Launch Announcement Generator](https://www.zero.xyz/c/fastapi-online-product-launch-announcement-generator-e32d68ae/llms.txt): $0.0015/call via x402. Generates a polished product launch announcement given a product name and its key features
- [fastapi.online — Naming Suggest](https://www.zero.xyz/c/fastapi-online-naming-suggest-2affbbd6/llms.txt): $0.001/call via x402. Suggests idiomatic names for a variable, function, class, or constant given a description and target programming language
- [fastapi.online — QR Code Generator](https://www.zero.xyz/c/fastapi-online-qr-code-generator-60ddd598/llms.txt): $0.0005/call via x402. Generates a QR code image from a text or URL string, returning it as a base64-encoded image.
- [fastapi.online — Bullet Points Generator](https://www.zero.xyz/c/fastapi-online-bullet-points-generator-2cb306f3/llms.txt): $0.001/call via x402. Converts a block of text into a concise, structured list of bullet points using self-hosted AI inference.
- [fastapi.online Tone Adjust](https://www.zero.xyz/c/fastapi-online-tone-adjust-ce576a9f/llms.txt): $0.001/call via x402. Rewrites a given text in a specified tone (e.g. formal, friendly, persuasive) using a self-hosted AI model, paid per call.
- [fastapi.online — AI Database Schema Generator](https://www.zero.xyz/c/fastapi-online-ai-database-schema-generator-7acae0d2/llms.txt): $0.005/call via x402. Generates a database schema (Prisma, Postgres SQL, or Mongoose) from a plain-English description of a data model
- [fastapi.online — Image Pad (Add Padding to Image)](https://www.zero.xyz/c/fastapi-online-image-pad-add-padding-to-image-91f784a5/llms.txt): $0.001/call via x402. Pads an uploaded image with a solid color to reach a specified target width and height.
- [fastapi.online Markdown to HTML Converter](https://www.zero.xyz/c/fastapi-online-markdown-to-html-converter-82b565db/llms.txt): $0.0005/call via x402. Converts a Markdown string into rendered HTML markup
- [fastapi.online — Error Explain](https://www.zero.xyz/c/fastapi-online-error-explain-ed2eacae/llms.txt): $0.001/call via x402. Analyzes an error message or stack trace and returns a plain-language explanation with likely causes and suggested fixes
- [fastapi.online — Image Watermark](https://www.zero.xyz/c/fastapi-online-image-watermark-bb95ed93/llms.txt): $0.0015/call via x402. Adds a text watermark to an uploaded image with configurable opacity and position
- [fastapi.online — Code Review Comment Generator](https://www.zero.xyz/c/fastapi-online-code-review-comment-generator-f8204f88/llms.txt): $0.0015/call via x402. Generates a code review comment for a given code diff using self-hosted AI inference
- [fastapi.online — Generate Avatar](https://www.zero.xyz/c/fastapi-online-generate-avatar-1c924d63/llms.txt): $0.012/call via x402. Generates a unique avatar image from a text description of a person or character, with an optional seed for reproducibility.
- [fastapi.online SQL Explain](https://www.zero.xyz/c/fastapi-online-sql-explain-7b289484/llms.txt): $0.001/call via x402. Accepts a SQL query string and returns a plain-language explanation of what the query does
- [fastapi.online — Code Translation (Cross-Language Code Converter)](https://www.zero.xyz/c/fastapi-online-code-translation-cross-language-code-converter-275a46a0/llms.txt): $0.002/call via x402. Translates source code from one programming language to another using AI inference, preserving logic and structure.
- [fastapi.online — Concept Art Generator](https://www.zero.xyz/c/fastapi-online-concept-art-generator-43fb9912/llms.txt): $0.012/call via x402. Generates concept art images from a text description using self-hosted AI image generation models, with optional seed for reproducibility.
- [fastapi.online — Slogan Generator](https://www.zero.xyz/c/fastapi-online-slogan-generator-20823b9b/llms.txt): $0.001/call via x402. Generates one or more marketing slogans for a given brand name using self-hosted AI inference.
- [fastapi.online PDF Extract](https://www.zero.xyz/c/fastapi-online-pdf-extract-803f2c84/llms.txt): $0.0015/call via x402. Extracts text content and page data from a PDF file, returning structured text and per-page information.
- [fastapi.online — Complaint Response Generator](https://www.zero.xyz/c/fastapi-online-complaint-response-generator-8f3e1bd1/llms.txt): $0.0015/call via x402. Generates a professional written response to a customer complaint using self-hosted AI inference
- [fastapi.online Luhn Algorithm Validator](https://www.zero.xyz/c/fastapi-online-luhn-algorithm-validator-e707fdc3/llms.txt): $0.0005/call via x402. Validates a numeric string using the Luhn algorithm, typically used to verify credit card, IMEI, or other check-digit numbers
- [fastapi.online Social Post Generator](https://www.zero.xyz/c/fastapi-online-social-post-generator-cfbbfcf0/llms.txt): $0.001/call via x402. Generates platform-optimized social media posts (Twitter, LinkedIn, Instagram, Facebook, TikTok) from a given content brief using self-hosted AI inference.
- [fastapi.online — Email Draft Generator](https://www.zero.xyz/c/fastapi-online-email-draft-generator-57180563/llms.txt): $0.0015/call via x402. Generates a draft email given a stated intent and optional tone, using a self-hosted AI model paid per call with crypto.
- [fastapi.online — Quiz Questions Generator

… (truncated at 16384 bytes)