aid: calysta
name: Calysta
description: 'Calysta, Inc. is a cellular agriculture company founded in 2012 and headquartered in
  San Mateo, California, with operations in Memphis, Tennessee (NouriTech), Wilton/Teesside in the
  United Kingdom (Calysta UK Ltd.) and Singapore (Calysta Asia Pte Ltd.). It produces protein
  ingredients through a patented gas-fermentation platform in which a naturally-occurring
  microorganism converts carbon and energy into a non-GMO single-cell protein, using no arable land
  and no plant or animal inputs. Its product family includes FeedKind for aquaculture and livestock,
  FeedKind Pet, FeedKind Net Zero and Positive Protein for human food ingredients; FeedKind Aqua is
  sold globally through Calysseo, a 50/50 joint venture with Adisseo whose first production plant in
  China manufactures thousands of tonnes per year. Calysta sells physical protein ingredients to feed
  and food manufacturers — its fermentation platform is industrial process technology, not commercial
  software — and it publishes no public API, developer portal, SDK, or machine-readable
  specification.'
image: https://calysta.com/wp-content/uploads/2022/03/calystalogo-1.png
url: https://raw.githubusercontent.com/api-evangelist/calysta/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.23'
created: '2026-08-09'
modified: '2026-08-09'
tags:
- Company
- Biotechnology
- Cellular Agriculture
- Fermentation
- Alternative Protein
- Animal Feed
- Aquaculture
- Food Ingredients
- Sustainability
- Pet Nutrition
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/calysta-domain-security.yml
- type: LLMsTxt
  url: llms/calysta-llms.txt
- type: Website
  url: https://calysta.com/
- type: About
  url: https://calysta.com/who-we-are/
- type: Blog
  url: https://calysta.com/news/
- type: BlogRSS
  url: https://calysta.com/feed/
- type: Support
  url: https://calysta.com/contacts/
- type: Careers
  url: https://calysta.com/careers/
- type: TermsOfService
  url: https://calysta.com/terms-and-conditions/
- type: PrivacyPolicy
  url: https://calysta.com/privacy-policy/
- type: LinkedIn
  url: https://www.linkedin.com/company/calysta-energy
- type: Twitter
  url: https://x.com/feedkind
x-enrichment:
  date: '2026-08-09'
  status: minimal
  artifacts_added: 2
  pass: local-v1
x-coverage:
  state: none
  reason: not-a-software-company
  detail: Calysta sells single-cell protein ingredients (FeedKind, Positive Protein) manufactured by an
    industrial gas-fermentation process; its complete 33-page WordPress sitemap has no developer, docs
    or API page, and the only machine-readable surface on the host is the stock WordPress REST API at
    /wp-json/ whose 273 routes are all core or third-party plugin namespaces with no first-party
    Calysta namespace.
  evidence:
  - url: https://calysta.com/wp-sitemap.xml
    status: 200
  - url: https://calysta.com/llms.txt
    status: 404
  - url: https://calysta.com/.well-known/security.txt
    status: 404
  - url: https://calysta.com/zzz-api-evangelist-control.json
    status: 200
  - url: https://calysta.com/.well-known/agent-card.json
    status: 200
  - url: https://api.calysta.com/
    status: 0
  x-evidence-note: The two HTTP 200 rows are the soft-404 control pair — calysta.com answers every
    unknown path with the identical 148,659-byte homepage, so the 200 on /.well-known/agent-card.json
    matches the random control byte-for-byte and is not an agent card. No A2A artifact was written.
  checked: '2026-08-09'