# Halcyon

**Canonical:** https://apis.io/providers/halcyon/  
**Website:** https://www.halcyon.ai/  
**APIs profiled:** 1

Halcyon (Halcyon Tech, Inc.) is a cybersecurity company that builds a purpose-built, adaptive anti-ransomware and cyber-resilience platform. Its lightweight endpoint agent combines automated detection and disruption across the full ransomware attack lifecycle — pre-execution, encryption, and data exfiltration — with encryption-key recovery, a managed 24/7 Ransomware Operations Center (ROC), and a ransomware recovery warranty. Halcyon exposes a REST API for device/asset data and a universal API that streams alerts into SIEM, SOAR, and XDR platforms such as Splunk, Microsoft Sentinel, Google SecOps, Sumo Logic, and Exabeam, alongside backup integrations with Veeam, Cohesity, Acronis, and Commvault. Backed by Bain Capital Ventures and Obvious Ventures.

## Kin Score — 18.4 / 100 (emerging)

Scored 2026-08-30 under rubric 0.17.2. Trend: flat (+0.0 from 18.4).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 2.4 |
| Commercial Clarity | 50.0 |
| Access Clarity | 50.0 |

## Agent readiness — 0.0 (human-only)

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

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (1)

- **Halcyon API** — Halcyon's REST API for device/asset data plus a universal API for streaming ransomware alerts into SIEM, SOAR, and XDR platforms. The API and its documentation are customer-auth...

## Security (2)

- **Halcyon Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC
- **Halcyon Trust Center** — SOC 2

## Tags

Company, Ai Infrastructure, Cybersecurity, Ransomware, Endpoint Security, Threat Detection, SIEM

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