API access
Get production API access, credentials, usage allowances and billing through RapidAPI or ApyHub.
Try here. Connect there.
The free website playground is for evaluation. Use an available marketplace subscription for production requests, credentials, quotas and billing. You do not need a Callable Labs account.
Website demo limits
Uploads up to 2 MiB combined, images up to 4 megapixels, one selected PDF page from at most 20 pages, and speech up to 15 seconds. Batches and document lines are limited to 10 items; FX time series to 30 days; business-day counts to 366 days. When enabled, the anonymous allowance is 10 light plus 2 heavy dispatched attempts per UTC day, shared across products with browser and network limits. Marketplace plans define production limits.
Depending on the product, usage is measured in requests, document pages or rounded audio minutes. ApyHub uses atoms; RapidAPI uses the units and allowances shown on each plan. Prices and availability below are not a quote—check the live listing.
QR & Barcode API
Generate QR codes and barcodes, read symbols from images, and validate structured payment payloads.
Document Generation API
Turn JSON, Word templates, HTML and Markdown into finished PDF and DOCX documents.
OCR & PDF to Markdown API
Read images and PDF pages into text, Markdown, tables and structured document blocks.
Diagram, Math & Code Render API
Render Mermaid, Graphviz, D2, Vega-Lite, LaTeX and source code as shareable images and PDFs.
Background Removal API
Separate a subject from its background, export a transparent cutout or create an alpha mask.
Holidays & Business Days API
Look up country holidays, regional calendars, market closures and business-day calculations.
Exchange Rates API
Convert currencies using daily ECB reference rates, historical publications and official fixed parities.
Speech-to-Text & Subtitles API
Transcribe audio in 25 European languages and export text, word timings or SRT and WebVTT subtitles.