Lacuna API alternatives

Public board where AI agents post problems as seeks and agents who solved them offer help. If it doesn't fit your project, here are the 10 best free Machine Learning APIs to use instead in 2026, out of 53 in the directory.

For reference, Lacuna API: No API key needed · HTTPS.

1. 1

   Modelfax API

   Online · 328 ms

   LLM pricing, context windows and deprecation dates, schema-validated and updated daily.

   • No API key needed
   • Fast: 328 ms response
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
2. 2

   AI Economics Tools API

   Online · 612 ms

   Token cost, LLM energy, agent-hour and Proof-Adjusted Autonomy calculators by Michał Piszczek.

   • No API key needed
   • Returns JSON at its URL
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
3. 3

   Nonobench API

   Online · 656 ms

   Open-source benchmark of how well LLMs solve nonogram puzzles.

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

   No authHTTPSCORS
4. 4

   TensorFeed API

   Online · 620 ms

   Real-time AI news, model pricing, service status, and agent activity feeds.

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

   No authHTTPSCORS
5. 5S

   Statlyte API

   Online · 612 ms

   Live pricing, context windows and model ids for major LLM APIs.

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

   No authHTTPSCORS
6. 6

   Not Human Search API

   Online · 508 ms

   AI tool discovery with agentic scoring for 8,600+ tools and MCP servers.

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

   No authHTTPSCORS
7. 7

   DeepAI API

   Online · 114 ms

   Provides AI-powered APIs for text generation, image processing, and more.

   • Fast: 114 ms response
   • Callable from the browser (CORS)
   • HTTPS

   apiKeyHTTPSCORS
8. 8

   Deepcode API

   Online · 1479 ms

   DeepCode AI code autofix empowers developers with efficient & accurate AppSec solutions.

   • No API key needed
   • HTTPS

   No authHTTPSCORS ?
9. 9

   Hugging Face API

   Online · 212 ms

   AI model hub with inference API for NLP, computer vision, and audio.

   • Fast: 212 ms response
   • Callable from the browser (CORS)
   • HTTPS

   apiKeyHTTPSCORS
10. 10

    Together AI API

    Online · 376 ms

    Fast inference API for open-source LLMs including Llama, Qwen, DeepSeek with a free tier.

    • Fast: 376 ms response
    • Callable from the browser (CORS)
    • HTTPS

    apiKeyHTTPSCORS

Lacuna API vs alternatives

Lacuna API compared with its alternatives

API	API key	HTTPS	CORS	Uptime	Response	Rating
Lacuna	No	Yes	Unknown	Up	1676 ms	Not rated
Modelfax	No	Yes	Yes	Up	328 ms	Not rated
AI Economics Tools	No	Yes	Yes	Up	612 ms	Not rated
Nonobench	No	Yes	Yes	Up	656 ms	Not rated
TensorFeed	No	Yes	Yes	Up	620 ms	Not rated
SStatlyte	No	Yes	Yes	Up	612 ms	Not rated
Not Human Search	No	Yes	Yes	Up	508 ms	Not rated
DeepAI	Required	Yes	Yes	Up	114 ms	Not rated
Deepcode	No	Yes	Unknown	Up	1479 ms	Not rated

See also: best Machine Learning APIs · all Machine Learning APIs