{"uid":"cap__uOtt8bk3jSF_imxT9gzz","slug":"fastapi-online-html-to-markdown-converter-ac76203e","name":"fastapi.online HTML to Markdown Converter","description":"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.","url":"https://api.fastapi.online/html-to-markdown","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"html":{"type":"string","maxLength":200000}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.0005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3OxLYf-oaLGdwMyJyZL4x","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts raw HTML content into clean Markdown format via a POST request, priced per call with crypto.","exampleAgentPrompt":"Can you convert this HTML I scraped from a webpage into clean Markdown? Here's the HTML:

Title

Hello world

","exampleUseCases":[{"title":"LLM context preparation from scraped pages","prompt":"I just scraped this HTML from a product page and I need it converted to Markdown so I can feed it cleanly to an LLM — here's the raw HTML:

Product Name

"},{"title":"Documentation pipeline HTML to Markdown","prompt":"We have a bunch of legacy HTML documentation files and I need them converted to Markdown for our new docs site — can you convert this one for me? Here's the HTML content of the first file."},{"title":"Clean up email HTML for readable summary","prompt":"I received an HTML email newsletter and I want a clean Markdown version of it so I can read it without all the HTML noise — here's the raw HTML of the email."}],"resultDescription":"Returns a Markdown-formatted string derived from the submitted HTML, with HTML tags stripped and structure preserved as Markdown syntax (headings, lists, links, bold, etc.).","failureModes":["HTML exceeds 200,000 character limit — request rejected","Malformed or deeply nested HTML may produce imperfect Markdown structure","Payment not included or insufficient — 402 Payment Required response","Empty HTML body returns empty or minimal Markdown output"],"whenToPreferThis":"Choose this endpoint when you need a quick, pay-per-call HTML-to-Markdown conversion without signup, especially in agentic pipelines where scraped HTML needs to be cleaned for LLM consumption. Ideal for one-off or low-volume conversions billed in USDC microtransactions via x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:50:48.827Z","isFirstParty":false}