# Arresto Biosciences

**Canonical:** https://apis.io/providers/arresto-biosciences/  
**APIs profiled:** 0

Arresto Biosciences, Inc. was a privately-held, development-stage biotechnology company headquartered in Palo Alto, California, focused on medicines to treat fibrotic diseases and cancer by targeting enzymes involved in the synthesis of the extracellular matrix. Its lead product was AB0024, a humanized monoclonal antibody targeting the human lysyl oxidase-like-2 (LOXL2) protein, then in Phase I studies for idiopathic pulmonary fibrosis and advanced solid tumors. Founded circa 2007 and backed by Kleiner Perkins Caufield & Byers, HealthCare Ventures, Northgate Capital, DAG Ventures and Abbott Biotech Ventures, Arresto was acquired by Gilead Sciences for $225 million; the deal was announced December 20, 2010 and had closed by February 2011. The company no longer operates as an independent entity, publishes no developer or API surface, and its former domain (arrestobio.com) no longer resolves.

## Kin Score — 2.9 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 2.9).

| Facet | Score |
|---|---|
| Discoverability | 57.4 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

Regulatory layer — **Health**: 0.0 (matched via tags).

## 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 |

## Access

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

## Tags

Company, Healthcare, Biotechnology, Biopharmaceutical, Life Sciences, Drug Discovery, Oncology, Fibrosis, Monoclonal Antibodies, Acquired

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