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 APIs90 services in this categoryDeveloper Tools APIs
90 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 ApyHubDomain Pricing, TLD & Registrar Information
Domain availability API that checks up to 100 names per call, compares TLD prices across registrars, and returns WHOIS, DNS, SSL and uptime data.
tldersGameBrain 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
Render Mermaid, Graphviz, D2 and Vega-Lite diagrams, LaTeX math and highlighted code to PNG, SVG or PDF with one API call. Free tier on ApyHub.
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 ApyHubWhich Developer Tools API do you need?
The question you arrived with, and the endpoint that answers it.