# Kastle: AI loan operations from inquiry to payment

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Author: Ali Abouelatta (https://thelazyweb.com/authors/ali-abouelatta/)
Published: 2026-09-19
Updated: 2026-09-19
Research type: Company profile
Method: Company and accelerator sources checked 2026-09-19. Product claims are attributed to their sources; this is research, not a hands-on product trial.

Kastle provides AI agents for loan operations, from borrower questions and payment collection to new-loan qualification. It fits banks and mortgage servicers that need more support capacity without making every borrower wait for a human call-center agent.

## What it does

[Kastle’s current site](https://www.kastle.ai/) positions AI agents across the full loan cycle and says the product is in production with ten of the top 25 U.S. servicers. [The YC launch](https://www.ycombinator.com/launches/Ld4-kastle-ai-servicing-for-mortgage-lending) describes voice and SMS agents that collect payments, answer escrow questions, qualify inquiries, integrate with servicing and telephony systems, leave loan comments and route to live agents.

The product is more than a voice interface. A lender needs the agent to take an authorized action, write the right record and preserve the compliance trail. Kastle’s launch says it automatically scores calls against a lender’s quality framework. The public record also describes an AI

[Kastle: AI loan operations from inquiry to payment](<https://www.thelazyweb.com/companies/kastle/>)

Source observed: 2026-09-20T02:21:25.560Z. Last checked: 2026-10-08T01:58:45.111+00:00.

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