# Ultimate.ai

**Canonical:** https://apis.io/providers/ultimateai/  
**Website:** https://ultimate.ai/  
**APIs profiled:** 2

Ultimate.ai was a Helsinki- and Berlin-based customer support automation platform - virtual agents and chatbots with intent recognition and agent-assist - backed by HV Capital and Techstars. Zendesk acquired Ultimate.ai in 2024 and the product now ships as Zendesk AI agents (the "AI agents - Advanced" add-on); ultimate.ai redirects to zendesk.com and the successor AI Agents APIs (Chat, Ticket, Widget Escalation, Data Export, Delete User Data plus webhooks) are documented on developer.zendesk.com, with API keys still generated from the Ultimate.ai dashboard. The legacy Ultimate.ai Public API on chat.ultimate.ai is retired.

## Kin Score — 27.4 / 100 (emerging)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 27.4).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 51.6 |
| Governance | 0.0 |
| Operational Transparency | 13.2 |
| Developer Ergonomics | 26.1 |
| Commercial Clarity | 0.0 |

## Agent readiness — 34.2 (agent-ready)

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

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (2)

- **Zendesk AI Agents API (formerly Ultimate.ai)** — Successor API surface of the Ultimate.ai platform after the Zendesk acquisition - Chat, Ticket, and Widget Escalation APIs with matching webhooks, plus Data Export and Delete Us...
- **Ultimate.ai Public API (legacy, retired)** — The original Ultimate.ai Public API on chat.ultimate.ai - Chat Automation (POST /api/v2/automation), Intent Recognition (POST /api/intents), and Delete User Data (POST /api/gdpr...

## Security (2)

- **Ultimateai Authentication** — http-basic/apiKey · 4 schemes
- **Ultimateai Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Tags

Company, Ai Enterprise Software, Customer Support, Conversational AI, Chatbots, AI Agents, Automation, Acquired

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