# ARGUS Developer

> ARGUS Developer is real estate development software from Altus Group for property
> developers, appraisers, consultants and financiers, covering development pro forma
> modeling, residual land value analysis, scenario comparison, cash flow forecasting and
> reporting across multi-stage development projects. It is part of the ARGUS suite and is
> delivered over the ARGUS Cloud platform.

Generated 2026-09-06 by the API Evangelist enrichment pipeline from this repository's
apis.yml and artifacts. Method: generated. Altus Group serves no llms.txt of its own
(https://www.altusgroup.com/llms.txt returned 404 on 2026-09-06).

## Important: no public API

ARGUS Developer does not publish an API, an OpenAPI or any other machine-readable
contract, an SDK, a developer portal or a sandbox. This was probed, not assumed:

- https://www.altusgroup.com/openapi.json — 404
- https://cloud.altusplatform.com/openapi.json — 200, but a single-page-app HTML shell;
  the same body is returned for a control path that cannot exist
- https://developer.altusgroup.com/, https://docs.altusgroup.com/,
  https://api.altusgroup.com/, https://developer.altusplatform.com/ — do not resolve
- https://api.argusenterprise.com/ — resolves, but the domain is parked and listed for
  sale on HugeDomains; it is NOT an Altus Group host. Any claim that ARGUS runs an API at
  api.argusenterprise.com is false.

The "ARGUS API" that Altus Group markets is a cloud integration gateway for ARGUS
Enterprise and other cloud-enabled ARGUS solutions, not an ARGUS Developer surface.
Its former product page (https://www.altusgroup.com/argus/products/argus-api/) now
redirects to https://www.altusgroup.com/argus/.

## Lifecycle — read this first

Altus Group states verbatim on the ARGUS Developer downloads page: "As of March 31, 2026,
Altus Group no longer offers support for ARGUS Developer on-premise. We recommend moving
to ARGUS Developer Cloud." Latest published build is 8.3.6 (release notes dated
2025-10-11); the prior build 8.3.4 is dated 2023-10-05.

## Product

- Solution page: https://www.altusgroup.com/solutions/argus-developer/
- Downloads, release notes, installation and data-import guides: https://www.altusgroup.com/argus/downloads/argus-developer/
- Getting started: https://www.altusgroup.com/support/start-using-argus-intelligence/
- Training: https://www.altusgroup.com/argus/training/
- ARGUS Cloud portal (login): https://cloud.altusplatform.com/login
- Support portal and knowledge base: https://service.altusgroup.com/s/
- Support: https://www.altusgroup.com/support/

## Capabilities

- Development pro forma modeling for multi-stage projects (land, construction, sales)
- Residual land value analysis to determine maximum land bid prices
- Scenario analysis and side-by-side comparison
- Cash flow forecasting with budget-to-actual tracking
- Sensitivity analysis across costs, revenues, timing and interest rates
- Debt, equity and joint-venture funding structures
- 60+ reports for internal stakeholders and investor communication
- Cloud delivery over the ARGUS Cloud platform

## Pricing

Not published. The solution page says only that several subscription plans exist and that
multi-year discounts are available; every route is a contact-sales form. No prices, tier
names, quotas or currency appear anywhere on altusgroup.com for this product.

## Security and compliance

Altus Group publishes a Trust Center at https://www.altusgroup.com/trust-center/ naming
SOC 3 Type 2 for ARGUS Cloud, the ARGUS Intelligence Platform and Fairways, plus
organization-wide ISO/IEC 27001. SOC 2 Type II reports exist but are request-gated. No
vulnerability disclosure policy, security.txt or bug bounty was found.

## Discovery documents

One real well-known document is served across all Altus Group hosts probed: an OpenID
Connect discovery document at
https://service.altusgroup.com/.well-known/openid-configuration (issuer
https://service.altusgroup.com). It describes the Salesforce Experience Cloud identity
provider behind the Altus Group customer service portal, not a product API.

## Artifacts in this repository

- apis.yml — the API Evangelist provider record
- well-known/argus-developer-well-known.yml — well-known probe index across four hosts
- well-known/argus-developer-openid-configuration.json — the OIDC document, verbatim
- security/argus-developer-trust-center.yml — named certifications and program pages
- security/argus-developer-domain-security.yml — TLS / HSTS / DNS posture
- conformance/argus-developer-conformance.yml — standards conformance, positives and probed absences
- lifecycle/argus-developer-lifecycle.yml — versions, end-of-support, successor product
- changelog/argus-developer-changelog.yml — published release notes
- plans/argus-developer-plans-pricing.yml — plan_count 0, contact-sales
- rate-limits/argus-developer-rate-limits.yml — limit_count 0, no API
- blogs/ — posts pulled from https://www.altusgroup.com/insights/

## Legal

- Privacy policy: https://www.altusgroup.com/legal/privacy-policy/
- Legal index: https://www.altusgroup.com/legal/
- GDPR: https://www.altusgroup.com/legal/gdpr/

No Terms of Use page is published; https://www.altusgroup.com/terms-of-use/ returns 404
and the legal index links no terms-of-service document.