What they do:
Web search rebuilt for LLMs
Quick facts:
HQ: San Francisco, CA, United States
Top APIs Startups
This list has 11 startups and was last updated on Oct 15, 2026. 1 of them are hiring right now. Biggest hubs: San Francisco (4), Paris (2), and New York (2). Largest teams: Exa, Mindee, and Miden.
11 startups
What they do:
AI Document Understanding API
Quick facts:
What they do:
Card issuer processor and banking stack for businesses in Sub-…
Quick facts:
HQ: Rotherham, United Kingdom
What they do:
Analyze, act, and automate across systems
Quick facts:
HQ: New York, NY, United States
Unsiloed AI
Hiring
What they do:
API for parsing multimodal unstructured data
Quick facts:
HQ: San Francisco, CA, United States
What they do:
We give AI agents realtime web context via API
Quick facts:
HQ: San Francisco, CA, United States
What they do:
We get your product picked by coding agents.
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What they do:
AI + human review to solve data cleaning - accessible via API or Excel
Quick facts:
HQ: New York, NY, United States
What they do:
The email API built for product teams
Quick facts:
HQ: United States
Kimono Labs
Acquired
What they do:
Create APIs where they don't exist. With kimono you can quickly…
Quick facts:
HQ: Los Angeles, CA, United States
Wit.ai
Acquired
What they do:
Natural Language for Developers --Wit is an API that makes it easy…
Quick facts:
HQ: San Francisco, CA, United States
Questions and answers
How many startups are on this list?
There are 11 startups on this list, last updated on Oct 15, 2026.
Which of them are hiring?
1 of them are hiring right now, including Unsiloed AI.
Which of them have the largest teams?
By team size: Exa (75 employees), Mindee (60 employees), and Miden (19 employees).
Where are they based?
The biggest hubs are San Francisco (4), Paris (2), and New York (2).