# Form 10A: Defendant's Claim

Ontario Small Claims Court.

Used for: Lets a defendant make a claim of their own, against the plaintiff or another person, within an existing Small Claims Court case.

## Official source
- Form file: https://ontariocourtforms.on.ca/static/media/uploads/courtforms/scc/10a/scr-10a-aug22-fil-en.pdf
- Source page: https://ontariocourtforms.on.ca/en/rules-of-the-small-claims-court-forms/
- Version: 2022-08-01
- In effect: 2023-01-30
- Last checked by Router.law: 2026-10-17

## Only the person can do
- Sign as plaintiff by defendant's claim or representative on page 3.

## Fill it with Router.law
- REST: POST https://router.law/v1/forms/10A/fill (API key)
- MCP: https://router.law/mcp, tool fill_form with form_id "10A"
- Questions and input schema: get_form_spec("10A")
- Docs: https://router.law/docs

Router.law spec status: draft. Router.law returns the filled form for a person to review. It never files anything and does not give legal advice.