Opna Bio

Opna Bio is a clinical-stage biopharmaceutical company focused on oncology, developing novel small-molecule and targeted-degrader therapeutics against key regulators of cancer, including the Hallmarks of Cancer. Its pipeline features OPN-6602 (an EP300/CBP inhibitor in Phase 1 for multiple myeloma, granted FDA Fast Track designation), zavabresib (OPN-2853, a BET inhibitor with Orphan Drug designation for myelofibrosis), multi-functional protein degraders, and additional programs targeting hematologic malignancies and solid tumors. The company operates from South San Francisco and San Diego, California, and Lausanne, Switzerland.

Opna Bio is profiled on the APIs.io network. Tagged areas include Company, Oncology, Biopharmaceutical, Pharmaceuticals, and Cancer.

Opna Bio’s developer surface includes engineering blog, support, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub

15.0/100 emerging ▬ flat Agent 4/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyOncologyBiopharmaceuticalPharmaceuticalsCancerDrug DiscoveryLife SciencesHealthcare

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 15.0/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 1.3 / 20

Commercial Clarity 4.2 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 4/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

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Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 5

The organization behind the API

Website

About

Blog

Careers

Investors

Other 2

Properties that don't map to a standard resource type

Team

Team

Pipeline

Pipeline

Source (apis.yml)

aid: opna-bio
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/opna-bio.png
name: Opna Bio
description: Opna Bio is a clinical-stage biopharmaceutical company focused on oncology, developing novel small-molecule and
  targeted-degrader therapeutics against key regulators of cancer, including the Hallmarks of Cancer. Its pipeline features
  OPN-6602 (an EP300/CBP inhibitor in Phase 1 for multiple myeloma, granted FDA Fast Track designation), zavabresib (OPN-2853,
  a BET inhibitor with Orphan Drug designation for myelofibrosis), multi-functional protein degraders, and additional programs
  targeting hematologic malignancies and solid tumors. The company operates from South San Francisco and San Diego, California,
  and Lausanne, Switzerland.
url: https://raw.githubusercontent.com/api-evangelist/opna-bio/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- menlo-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Oncology
- Biopharmaceutical
- Pharmaceuticals
- Cancer
- Drug Discovery
- Life Sciences
- Healthcare
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.opnabio.com
- type: About
  url: https://www.opnabio.com/about/
- type: Team
  url: https://www.opnabio.com/team/
- type: Pipeline
  url: https://www.opnabio.com/pipeline/
- type: Blog
  url: https://www.opnabio.com/press-releases/
- type: Support
  url: https://www.opnabio.com/contact/
- type: Careers
  url: https://www.opnabio.com/careers/
- type: Investors
  url: https://www.opnabio.com/investors/
- type: PrivacyPolicy
  url: https://www.opnabio.com/privacy-policy/
- type: TermsOfService
  url: https://www.opnabio.com/terms-of-use/
- type: LLMsTxt
  url: llms/opna-bio-llms.txt
- type: WellKnown
  url: well-known/opna-bio-well-known.yml
- type: DomainSecurity
  url: security/opna-bio-domain-security.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 3
  pass: local-v1