# Forty Seven *

**Canonical:** https://apis.io/providers/forty-seven/  
**Website:** http://fortyseveninc.com  
**APIs profiled:** 0

Forty Seven, Inc. was an immuno-oncology biotechnology company founded in 2015 to commercialize CD47 immune-evasion research licensed from Stanford University (Irv Weissman and colleagues). Its lead program was magrolimab, a monoclonal antibody targeting CD47 — the "do not eat me" signal tumor cells use to evade macrophage-mediated killing — studied in myelodysplastic syndrome (MDS), acute myeloid leukemia (AML), and diffuse large B-cell lymphoma (DLBCL). Backed by GV, the company was acquired by Gilead Sciences in 2020 for roughly $4.9 billion; the fortyseveninc.com domain now redirects to gilead.com. As a clinical-stage therapeutics company it exposes no public developer API surface.

## Kin Score — 3.3 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 3.3).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| 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**: 7.5 (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).

## Security (1)

- **Forty Seven Domain Security** — TLSv1.3 · DMARC

## Tags

Company, Life Sciences, Biotechnology, Immuno-Oncology, Oncology, Pharmaceuticals, Cancer, Therapeutics

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