aid: asher-biotherapeutics
name: Asher Biotherapeutics
description: 'Asher Biotherapeutics (Asher Bio) is a privately held, clinical-stage
  biotechnology company founded in 2019 and headquartered at 650 Gateway Blvd. in
  South San Francisco, California. The company develops cis-targeted immunotherapies
  — engineered biologics that simultaneously engage an immunomodulatory receptor and
  a cell-type-specific target on the same immune cell, so a cytokine is only activated
  on the intended cell population rather than acting indiscriminately across immune
  subsets. Its lead candidate, etakafusp alfa (AB248), is a cis-targeted IL-2 directed
  at CD8+ effector T cells and is in Phase 1a/1b clinical development in cancer, alongside
  earlier-stage programs AB821 and AB359 and a cis-targeted cytokine augmentation
  program for cell therapies. Asher Bio is a therapeutics developer, not a software
  or platform company: it publishes no developer program, public API, SDK, or machine-readable
  interface.'
image: https://asherbio.com/wp-content/uploads/2021/03/home-page-card-Asher-032221.jpg
url: https://raw.githubusercontent.com/api-evangelist/asher-biotherapeutics/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.23'
created: '2026-08-06'
modified: '2026-08-06'
tags:
- Company
- Biotechnology
- Immunotherapy
- Oncology
- Therapeutics
- Clinical Stage
- Life Sciences
- Cytokines
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://asherbio.com/
- type: PrivacyPolicy
  url: https://asherbio.com/privacy-policy/
- type: TermsOfService
  url: https://asherbio.com/terms-of-use/
- type: Blog
  url: https://asherbio.com/news/press-releases/
- type: BlogRSS
  url: https://asherbio.com/news/press-releases/feed/
- type: Contact
  url: https://asherbio.com/contact-us/
- type: Careers
  url: https://asherbio.com/careers/
- type: About
  url: https://asherbio.com/about-us/
- type: SecondaryMarket
  url: https://forgeglobal.com/asher-biotherapeutics_stock/
- type: DomainSecurity
  url: security/asher-biotherapeutics-domain-security.yml
x-enrichment:
  date: '2026-08-06'
  status: minimal
  artifacts_added: 2
  pass: local-v1
x-coverage:
  state: none
  reason: not-a-software-company
  detail: >-
    Asher Bio is a clinical-stage biologics developer whose product is a drug, not
    software — its entire WordPress site is four sections (platform, pipeline, news,
    careers) with no developer, API, or docs path; asherbio.com/api, /developers and
    /docs all return the site's 404 page.
  evidence:
  - url: https://asherbio.com/api
    status: 404
  - url: https://asherbio.com/developers
    status: 404
  - url: https://asherbio.com/openapi.json
    status: 404
  - url: https://asherbio.com/.well-known/agent-card.json
    status: 404
  - url: https://asherbio.com/llms.txt
    status: 404
  - url: https://asherbio.com/sitemap.xml
    status: 200
  checked: '2026-08-06'