Developer Tools APIs.
Developer tool APIs are the small utilities every service ends up needing — format conversion, IDs, hashes, token decoding, DNS and WHOIS lookups. Hosted so they don't become twelve copy-pasted helpers across your repos.
Also called utility APIs, dev utility APIs or helper APIs89 services in this categoryDeveloper Tools APIs
89 servicesExtract Text from Word API
Convert Word documents to plain text in your app. Send a DOC or DOCX file or URL, and get the text back as JSON, with or without paragraph breaks. Free tier.
ApyHubVerifiedHosted on ApyHubGenerate iCal API
Create .ics calendar invites in your app. Send event details as JSON & get an iCal file that works in Google Calendar, Outlook & Apple Calendar. Free tier.
ApyHubVerifiedHosted on ApyHubGameBrain API
Search games, fetch detailed metadata, find similar titles, and load game news. Useful for catalogs, recommendations, autocomplete, and editorial tools.
Diagram, Math and Code Render API
Code Diagram Math Renderer turns source text into rendered images or files for code snippets, diagrams, and TeX expressions. Send a code block, diagram source, or math formula, and get back a rendered asset with metadata such as width, height, format, engine, cache status, warnings, and timing information. Use the code rendering endpoint when you need highlighted source code with optional line numbers, a theme, a title bar, background colour, and output control through scale, width, and format. It accepts source code plus optional language and theme hints, and can return JSON with a PNG data URI or bytes in SVG, PNG, PDF, JPEG, or WebP. Use the diagram endpoint for Mermaid, Graphviz, D2, or Vega-Lite input. Provide the engine and source, and you can also set layout, theme, background, width, scale, and download behaviour. This is useful for turning architecture diagrams, flowcharts, and data visualisations into shareable assets for docs, pull requests, or generated reports. Use the math endpoint to render TeX with MathJax. It supports colour, font size, display mode, background, width, scale, format, and download. That makes it a fit for documentation systems, educational content, and apps that need consistent formula rendering without bundling fonts or a browser renderer.
Callable LabsDecode QR & Barcode API
Decode QR codes and barcodes from an image URL or base64 payload. Returns decoded text, format, position, and parsed payloads when available.
Callable LabsValidate Payment & Generate QR API
Validate GS1 and payment QR payloads, inspect parsed fields, and render scannable QR codes in common formats. Useful for checkout, invoicing, and test automation.
Callable LabsExtract Sitemap from URL API
Extract URLs from a website's sitemaps, with optional sitemap metadata and async job polling. Built for SEO audits, crawl seeds, and inventory.
ApyHubVerifiedHosted on ApyHubDomain Availability API
Check whether a domain is available, taken, or indeterminate. Validate candidate names inside signup flows, registrars, and domain search tools.
ApyHubVerifiedHosted on ApyHubBroken Link Checker API
Scan any webpage URL for broken links. Returns link statuses, redirect chains, response times, and a summary count for site audits and QA.
ApyHubVerifiedHosted on ApyHubLanguage Dictionary API
Get every ISO 639-1 language as JSON with its two-letter code, English name and native name, like de, German, Deutsch. Built for language pickers. Free tier.
ApyHubVerifiedHosted on ApyHubPhonetic Text Search API
Compare a source word against candidates using Metaphone or Soundex. Returns matching words with shared phonetic codes for deduping and search.
ApyHubVerifiedHosted on ApyHubBest Match Text Search API
Rank candidate strings against a source string using Levenshtein distance. Built for typo correction, deduplication, and closest-match lookup.
ApyHubVerifiedHosted on ApyHubWhich Developer Tools API do you need?
The question you arrived with, and the endpoint that answers it.