# Arthrosi Therapeutics

**Canonical:** https://apis.io/providers/arthrosi-therapeutics/  
**Website:** https://arthrosi.com/  
**APIs profiled:** 0

Arthrosi Therapeutics, Inc. is a late-stage clinical biotechnology company founded in 2018 and headquartered in San Diego, California, by a team of gout specialists who previously led first-generation urate-transporter development at Ardea Biosciences. Its lead candidate, pozdeutinurad (AR882), is a once-daily oral next-generation URAT1 inhibitor in two fully enrolled replicate global Phase 3 trials (REDUCE 1 and REDUCE 2) for progressive and tophaceous gout, backed by roughly $299M in venture financing including a $153M Series E led by Prime Eight Capital. Sobi (Swedish Orphan Biovitrum) completed its acquisition of Arthrosi on 9 February 2026. Arthrosi is a drug developer, not a software company: it operates a WordPress corporate site with company, leadership and news pages, and publishes no developer portal, public API, SDK, package or machine-readable specification of any kind.

## Kin Score — 7.0 / 100 (minimal)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 7.0).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 2.2 |
| Commercial Clarity | 0.0 |

Regulatory layer — **Health**: 7.5 (matched via tags).

## Agent readiness — 3.6 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | 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 | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Security (1)

- **Arthrosi Therapeutics Domain Security** — TLSv1.3 · DMARC

## Tags

Company, Biotechnology, Pharmaceuticals, Life Sciences, Clinical Trials, Drug Development, Gout, Rheumatology, Healthcare

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