Use these tools inside your AI assistant

The same calculators, lender directory and guides on this site are available to AI assistants such as ChatGPT, Claude and Gemini. Ask your assistant an auto refinance question and it can run the real numbers instead of guessing — then link you back to the page it used.

What it can do

  • Estimate savings. Compare a current car loan with a refinance at a given rate and term.
  • Estimate rate and approval odds. A likely APR range and approval likelihood for a similar vehicle, loan and credit band.
  • Lender directory. Published criteria for every reviewed lender: rates, minimum credit score, vehicle age, mileage, states.
  • Guides. Full text of the plain-language explainers, so answers can quote and link the source.
  • Partner sizing. For lenders sizing a shared-application program.

Connect it

In ChatGPT, Claude or Gemini, add a custom connector and paste this address. No account, key or sign-up.

Connector address
https://xomtqpozptklbylygqqg.supabase.co/functions/v1/mcp

Building something yourself

There is also a plain web version of the same tools, described in a standard machine-readable file you can hand to a custom GPT or any other client. Everything is read-only.

Description file
https://auto-refinance.banks.com/openapi.json
Web address
https://xomtqpozptklbylygqqg.supabase.co/functions/v1/refi-api

Terms of use

  • Free to use, no sign-up, and rate-limited so everyone gets a turn.
  • Read-only. Nothing is written, and no personal information is accepted or stored — only loan and vehicle figures.
  • Please credit Banks.com and keep the link that comes back with each answer.
  • Every figure is an estimate built from lenders' own published criteria. Nothing here is an offer, a live rate, or a promise of approval — the lender sets the actual terms after a soft credit pull.