INT21

INT21 is building Self-Improving Infrastructure, a new category of AI agent swarms that run autonomously and compound in performance.

Website: int21.ai.

X: @int21_ai · 663 followers.

Categories: AI agents Developer tools and cloud.

Sectors: AI.

Subcategory: autonomous agent swarms.

On Recent Funding since: Sep 22, 2026.

Signals

X account@int21_ai · created Apr 12, 2026 (7 months old) · 663 followers

Website registeredJan 11, 2026 (10 months old)

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/int21 (get a free API key).