# Teranet

**Canonical:** https://apis.io/providers/teranet/  
**Website:** https://www.teranet.ca/  
**APIs profiled:** 1

Teranet Inc. is the private operator of Ontario's Electronic Land Registration System (ELRS) and the POLARIS land records database under a long-running concession with the Government of Ontario, and is the exclusive service provider for Manitoba's Land Titles System and Personal Property Registry. Founded in 1991, headquartered in Toronto and wholly owned by OMERS, Teranet sits at the base of the Canadian property value chain: it holds the authoritative title, parcel, writ and instrument record and resells it as commercial products — Teraview, OnLand, Teranet eXpress, GeoWarehouse, PurView, Teranet Xchange, DataConnect/ValueProtect AVM, TeraIntelligence — plus the Teranet-National Bank House Price Index. Its API posture is licensed access only. Teranet Connect is genuinely described by Teranet as an API (XML and web services over POLARIS and the Writs database), but it is licensed to legal-software vendors through an account manager, with no public documentation, no published base URL, no self-serve signup and no developer portal; Teranet's own support site states plainly that GeoWarehouse has no open API. No RESO certification was found — Teranet is a land registry, not an MLS — and the public record it stewards is sold back rather than published as open data.

## Kin Score — 27.4 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 27.4).

| Facet | Score |
|---|---|
| Discoverability | 77.8 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 31.6 |
| Developer Ergonomics | 35.7 |
| Commercial Clarity | 23.7 |
| Access Clarity | 23.7 |

Regulatory layer — **Government & Public Sector**: 31.5 (matched via tags).

## Agent readiness — 12.0 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## APIs (1)

- **Teranet Connect** — Teranet Connect is described by Teranet as an application programming interface providing secure access to Ontario's POLARIS land registration database and the Writs database, u...

## Security (2)

- **Teranet Authentication** — proprietary-account/hardware-otp · 4 schemes
- **Teranet Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Real-Estate, Canada, Land Registry, Title, Conveyancing, Property Data, Valuation, AVM, PropTech, Government, Geospatial

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/teranet/). Scores are computed from the provider's own public artifacts under a published rubric.