aid: mozart-therapeutics
name: Mozart Therapeutics
description: >-
  Mozart Therapeutics, Inc. is a privately held, clinical-stage biopharmaceutical company in
  Seattle, Washington, founded in 2020 to develop disease-modifying therapies for autoimmune and
  inflammatory disease. Its platform is built on the regulatory CD8 T cell (CD8 Treg) network — an
  upstream immune checkpoint that normally recognizes and eliminates the pathogenic immune cells
  that attack healthy tissue, and that becomes dysfunctional in autoimmune disease when inhibitory
  killer immunoglobulin-like receptors (KIR) block CD8 Treg activation. Rather than suppressing
  downstream inflammation, Mozart engineers bispecific CD8 Treg modulators intended to restore that
  checkpoint and re-establish long-term immune balance. Its pipeline comprises MTX-101, a KIR x CD8
  bispecific antibody in Phase 1b study for type 1 diabetes, and MTX-201, a KIR x ICOS bispecific
  in preclinical development for inflammatory bowel disease. The company launched with a $55M
  Series A led by ARCH Venture Partners and Sofinnova Partners with participation from Eli Lilly,
  MRL Ventures Fund, Leaps by Bayer, Altitude Life Science Ventures and Alexandria Venture
  Investments, and later added a $25M extension including Pfizer Ventures, AbbVie Ventures, Ono
  Venture Investment and UPMC Enterprises. Mozart Therapeutics sells therapeutics, not software: it
  runs no developer program, publishes no API, SDK or machine-readable specification, and maintains
  no public source-code organization.
url: https://raw.githubusercontent.com/api-evangelist/mozart-therapeutics/refs/heads/main/apis.yml
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
image: https://www.mozart-tx.com/themes/default/images/logo_color.svg
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment-pipeline
specificationVersion: '0.23'
created: '2026-08-26'
modified: '2026-08-26'
tags:
- Company
- Biotechnology
- Pharmaceuticals
- Immunology
- Autoimmune Disease
- Drug Discovery
- Life Sciences
- Clinical Trials
- Bispecific Antibodies
- Research
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/mozart-therapeutics-domain-security.yml
- type: Website
  url: https://www.mozart-tx.com/
- type: About
  url: https://www.mozart-tx.com/about/
- type: Science
  url: https://www.mozart-tx.com/science/
- type: Pipeline
  url: https://www.mozart-tx.com/pipeline/
- type: News
  url: https://www.mozart-tx.com/news/news-releases/
- type: Careers
  url: https://www.mozart-tx.com/careers/
- type: Contact
  url: https://www.mozart-tx.com/contact/
- type: LinkedIn
  url: https://www.linkedin.com/company/mozart-therapeutics
- type: SecondaryMarket
  url: https://forgeglobal.com/mozart-therapeutics_stock/
x-enrichment:
  date: '2026-08-26'
  status: minimal
  artifacts_added: 2
  pass: local-v1
x-coverage:
  state: none
  reason: not-a-software-company
  detail: >-
    Mozart Therapeutics is a privately held clinical-stage biopharmaceutical company whose product
    is a bispecific-antibody pipeline (MTX-101, MTX-201), not software — www.mozart-tx.com is an
    eight-page brochure site (about, science, pipeline, news, careers, contact) with no developer,
    docs or API section, no robots.txt or sitemap.xml, and a real HTTP 404 on every spec path
    probed (/openapi.json, /swagger.json, /graphql, /llms.txt, all five /.well-known/ documents);
    mozart-tx.com serves wildcard DNS so api./docs./developer./mcp. resolve to the marketing site's
    address but no TLS service answers on them, there is no GitHub organization under any Mozart
    spelling, and no first-party package exists on npm or PyPI.
  evidence:
  - url: https://www.mozart-tx.com/
    status: 200
  - url: https://www.mozart-tx.com/openapi.json
    status: 404
  - url: https://www.mozart-tx.com/llms.txt
    status: 404
  - url: https://www.mozart-tx.com/robots.txt
    status: 404
  - url: https://www.mozart-tx.com/.well-known/agent-card.json
    status: 404
  - url: https://www.mozart-tx.com/developers/
    status: 404
  - url: https://dev.mozart-tx.com/openapi.json
    status: 404
  - url: https://api.github.com/search/users?q=mozart-therapeutics
    status: 200
  - url: https://pypi.org/pypi/mozart-therapeutics/json
    status: 404
  checked: '2026-08-26'