# API Documentation — 3Dogs Nexus

> Public API documentation for 3Dogs Nexus adversarial multi-model decision intelligence: signup, login, case submission, and case listing endpoints.

3Dogs Nexus API

Submit a high-stakes business decision; a panel of 8–32 AI models across three clouds researches, debates, and returns a decisive recommendation with preserved dissent. Base URL:

https://app.3dogs.ai

Auth model:

session cookie (no OAuth token API yet — see

auth.md

). Every new account gets a 30-day free trial automatically. Agents may create accounts only on behalf of a real user, with that user's consent.

Endpoints

GET

/health

Public health check. Returns

{"status":"ok","service":"3dogs-nexus"}

.

POST

/api/signup

Create an account. Body:

{"email":"...","password":"..."}

. 409 if the account exists. After signup, the user accepts Terms at

/onboard

before the first case.

POST

/api/login

Start a session. Body:

{"email":"...","password":"..."}

. Sets the session cookie.

GET

/api/whoami

Returns the logged-in identity for the current session.

POST

/intake

Submit a decision case (authenticated). Minimal body:

{

"email": "alan@3dogs.ai",

"q1": "The decision, in full — situation, options, constraints, numbers, deadlines. Any language.",

"mode": ""

}

mode

:

""

= 3Dogs decides (may ask clarifying questions) ·

"direct"

= no follow-ups, ~5 min ·

"deep"

= 3-panel ensemble, most rigorous. Optional guided fields

q2

–

q26

add structure but

q1

alone is sufficient. Returns a

case_id

; watch the live debate at

/watch?case=<id>

. The report is delivered as a PDF by email and in the dashboard.

GET

/api/my-cases

List the account's cases: status, pending clarification questions, PDF links, and plan/trial info (authenticated).

Answering clarification questions

Cases in default and deep modes may pause with clarifying questions. They appear in

/api/my-cases

and in the dashboard, where the user answers in a reply box. Answers can be written in any language.

Machine-readable discovery

/.well-known/api-catalog

(RFC 9727 linkset) ·

/.well-known/openapi.json

·

/.well-known/agent-skills/index.json

·

/llms.txt

Enterprise

Document-scale Deep Discovery (10,000+ page data rooms, half-million-email investigations), custom connectors, and dedicated or in-your-perimeter deployments are sales-led:

[email protected]

· (702) 845-2886

3Dogs Nexus ·

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Security

3Dogs

We don't make your decisions. We make them better.

Platform

Nexus

Pointer

Bloodhound

Start a Decision Case

Ask Rex

Evidence

Case studies

Enterprise

Answers

Knowledge base

API docs

Company

Our story

Founding ideals

Investors

FAQ

YouTube

© 2026 3Dogs · Alan Finney · alan@3dogs.ai · (702) 845-2886

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Example cases are simulated scenarios used to demonstrate the workflow unless identified as production engagements. This site's copy and imagery were created with AI assistance.