Best Documents & Productivity APIs in 2026

Ranking

1. 1D

   DocStruct API

   Online · 190 ms

   AI extraction of invoices, receipts, bank statements & contracts into structured JSON/CSV.

   • No API key needed
   • Fast: 190 ms response
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
2. 2

   TeamSort API

   Online · 988 ms

   Create a ranked-choice poll from a text prompt and get a shareable link.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
3. 3A

   AgentPay Doc Tools API

   Online · 657 ms

   PDF to text, RSS/Atom/JSON feeds to JSON and sitemaps to URL lists, paid per call via x402.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
4. 4

   WakaTime API

   Online · 1196 ms

   Automated time tracking leaderboards for programmers.

   • No API key needed
   • HTTPS

   No authHTTPSCORS ?
5. 5

   BuildPDF API

   Online · 902 ms

   Convert HTML, images, and text to PDF.

   • Callable from the browser (CORS)
   • HTTPS

   apiKeyHTTPSCORS
6. 6

   Cloudmersive Document and Data Conversion API

   Online · 996 ms

   HTML/URL to PDF/PNG, Office documents to PDF, image conversion.

   • Callable from the browser (CORS)
   • HTTPS

   apiKeyHTTPSCORS
7. 7

   DocCheap API

   Online · 609 ms

   Read passports, ID cards and driver's licences into JSON, $0.01 per recognised document.

   • Callable from the browser (CORS)
   • HTTPS

   apiKeyHTTPSCORS
8. 8

   iLovePDF API

   Online · 490 ms

   Convert, merge, split, extract text and add page numbers for PDFs. Free for 250 documents/month.

   • Callable from the browser (CORS)
   • HTTPS

   apiKeyHTTPSCORS
9. 9

   Renderly API

   Online · 824 ms

   HTML to PDF conversion API built on Chromium.

   • Callable from the browser (CORS)
   • HTTPS

   apiKeyHTTPSCORS
10. 10

    staffSign API

    Online · 1184 ms

    Digital employment contract API with QES/eIDAS support for HR and staffing.

    • Callable from the browser (CORS)
    • HTTPS

    apiKeyHTTPSCORS
11. 11

    Vector Express v2.0 API

    Online · 790 ms

    Free vector file converting API.

    • No API key needed
    • HTTPS

    No authHTTPSNo CORS
12. 12

    CloudConvert API

    Online · 401 ms

    Online file converter for audio, video, document, ebook, archive, image, spreadsheet, presentation.

    • Returns JSON at its URL
    • HTTPS

    apiKeyHTTPSCORS ?
13. 13

    Asana API

    Online · 3971 ms

    Programmatic access to all data in your asana system.

    • Callable from the browser (CORS)
    • HTTPS

    apiKeyHTTPSCORS
14. 14

    Flowdash API

    Online · 332 ms

    Automate business workflows. A free documents & productivity API by flowdash.com.

    • Fast: 332 ms response
    • HTTPS

    apiKeyHTTPSCORS ?
15. 15

    Api2Convert API

    Online · 557 ms

    REST API to convert and edit files in the cloud.

    • HTTPS

    apiKeyHTTPSCORS ?

Documents & Productivity APIs compared

Top Documents & Productivity APIs compared

API	API key	HTTPS	CORS	Uptime	Response	Rating
DDocStruct	No	Yes	Yes	Up	190 ms	Not rated
TeamSort	No	Yes	Yes	Up	988 ms	Not rated
AAgentPay Doc Tools	No	Yes	Yes	Up	657 ms	Not rated
WakaTime	No	Yes	Unknown	Up	1196 ms	Not rated
BuildPDF	Required	Yes	Yes	Up	902 ms	Not rated
Cloudmersive Document and Data Conversion	Required	Yes	Yes	Up	996 ms	Not rated
DocCheap	Required	Yes	Yes	Up	609 ms	Not rated
iLovePDF	Required	Yes	Yes	Up	490 ms	Not rated
Renderly	Required	Yes	Yes	Up	824 ms	Not rated
staffSign	Required	Yes	Yes	Up	1184 ms	Not rated

Best Documents & Productivity API FAQ