The Fonciq API for the Quebec land registry
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Use case · Legal software vendors
Bring the land registry into your legal software
Your product team wants users to order the index, the deed and the plan without leaving your software. The Fonciq API runs those lookups on the Registre account of your customer’s organisation, and returns the PDF with index rows as JSON or CSV.
What your team integrates
The calls that matter for this use case
Find the lot
From an address or a matricule to a lot number, then the lot record.
GET /v1/lots/resolve · GET /v1/lots/{lot}
Order the documents
The index of immovables, a deed PDF and the cadastral plan, each followed as a job.
POST /v1/registre/requests · POST /v1/actes · POST /v1/plans
Process a list of files
Up to 500 lots per request, as JSON or CSV, with the index rows returned.
POST /v1/batches
Follow a file
A scheduled re-check of a lot, with a signed webhook when a filing is added.
POST /v1/watches
How it works
How the integration works
- Lookups run on the Registre account of the organisation using your software. The Registre bills the account holder CAD 1.50 per document consulted, with no Fonciq margin.
- An API key and its Registre accounts belong to one organisation. Each order is an asynchronous job: you follow it, then read the PDF and the rows.
- Every write needs an idempotency key, kept for 24 hours. Watch notices are signed (HMAC-SHA256).
- No confidence score is produced on index rows (value “unscored”): the index PDF is the authoritative record, and your interface should show it.
Pricing and caps
CAD 0.99 per call, excluding Registre fees
One consulted index costs CAD 2.49: CAD 0.99 excluding Registre fees, plus the Registre’s own CAD 1.50 fee, billed by the Registre to the account holder.
| Call | Fonciq | Registre fee |
|---|---|---|
| Index — POST /v1/registre/requests | 0.99 CAD excluding Registre fees | 1.50 CAD, always (the Registre is consulted on every call). Index consulted: 2.49 CAD in total. |
| Deed PDF — POST /v1/actes | 0.99 CAD excluding Registre fees | 1.50 CAD only when the call consults the Registre. A deed Fonciq already holds: 0 CAD. |
| Cadastral plan — POST /v1/plans | 0.99 CAD excluding Registre fees | 1.50 CAD only when the call consults the Registre. A plan Fonciq already holds: 0 CAD. |
| Lot: resolve and record — GET /v1/lots/resolve, GET /v1/lots/{lot} | 0.99 CAD excluding Registre fees | None: these calls read the municipal assessment rolls and do not consult the Registre. |
| Batches — POST /v1/batches | 0.99 CAD per index excluding Registre fees | 1.50 CAD per index consulted. |
| Watch — POST /v1/watches | 0.99 CAD excluding Registre fees | Each index re-checked afterwards is a separate call: 0.99 CAD excluding Registre fees, plus 1.50 CAD at the Registre. |
| Structured deed reading | 4.99 CAD — Coming later | Not available yet: not billable and not in the OpenAPI document. |
A fq_test_ key charges nothing. Registre fees (1.50 CAD per document) are billed by the Registre to the account holder, with no Fonciq margin. Source: Registre foncier rate sheet in force from 1 April 2026.
- 60 requests per minute per key.
- 540 index calls per day per Registre account.
- 500 lots per batch request.
Limits
What the API does not do
- Structured deed reading (CAD 4.99) is coming later: it is neither available nor billed, and it is not in the OpenAPI document.
- Human review of old handwritten indexes is planned: no price and no timeline is published.
- Fonciq does not replace your interface, and publishes no integration with any named practice software.
Get started
One key, then the organisation’s Registre account
A fq_test_ key charges nothing.
Create a key →API reference (in French)
Law 25: designated privacy officer (RPRP) · Requests answered within 30 days · Client data hosted in Québec · AI processing in Montréal. Privacy policy (French)
Fonciq is not affiliated with the Registre foncier du Québec or its suppliers.
Frequently asked questions
Short answers.
- How does a legal software vendor integrate the Quebec land registry?
- Through the Fonciq API: one call resolves the address to a lot, others order the index, the deed or the plan on the customer organisation’s Registre account. The Registre foncier has no API of its own: the Fonciq API is Fonciq’s.
- Who pays the Registre fees?
- The Registre account holder, directly to the Registre: CAD 1.50 per document consulted. Each API call costs CAD 0.99 excluding Registre fees, so one consulted index costs CAD 2.49.
- Can many files be processed at once?
- Yes, with batches: up to 500 lots per request, within the cap of 540 indexes per day per Registre account.