Antora Energy website screenshot

Antora Energy

Antora Energy is a San Jose, California clean-energy hardware company founded by Justin Briggs, Andrew Ponec and David Bierman that designs, manufactures and deploys factory-built thermal batteries for heavy industry, data centers and the grid. Antora's system resistively heats blocks of solid carbon to temperatures up to 2,400C when electricity is cheapest, stores that energy for multiple days in a compact modular unit, and discharges it around the clock as radiant heat delivered directly to industrial processes or paired with off-the-shelf steam turbine equipment for firm power; the company also develops thermophotovoltaic (TPV) heat-to-power cells at what it describes as the world's largest TPV manufacturing line. Its HeatCore product delivers heat up to 375C at 300 kW-thermal per module, and its power block is rated at 50 MW-electric. Antora's first giga-scale deployment, Project Big Stone, is a 5 GWh system of more than 200 thermal batteries at POET's bioprocessing plant in Big Stone City, South Dakota, built from empty lot to energy delivery in under twelve months. The company closed a $550 million Series C in 2026. Antora sells energy hardware and long-term energy offtake rather than software: it publishes no developer program, no public API, no SDK and no machine-readable API contract, and its only public software surface is Insight, an authenticated steam and power optimization dashboard for named project stakeholders.

Antora Energy is profiled on the APIs.io network. Tagged areas include Company, Energy, Clean Energy, Thermal Energy Storage, and Energy Storage.

Antora Energy’s developer surface includes engineering blog and 19 more developer resources.

11.7/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
0 APIs
CompanyEnergyClean EnergyThermal Energy StorageEnergy StorageIndustrial HeatThermophotovoltaicsManufacturingData CentersDecarbonizationClimate TechCalifornia

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 11.7/100 · minimal
Contract Quality 0.0 / 21
Developer Ergonomics 0.4 / 17
Commercial Clarity 3.6 / 17
Operational Transparency 0.0 / 11
Governance 0.0 / 10
Discoverability 4.9 / 9
Regulatory Posture 2.8 / 15
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
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 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Regulatory Posture applies to this provider. Its tags matched the Energy & Utilities regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/antora-energy: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Antora Energy Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 1

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 6

The organization behind the API

Other 7

Properties that don't map to a standard resource type

Scroll for all 7

Source (apis.yml)

apis.yml Raw ↑
aid: antora-energy
name: Antora Energy
description: 'Antora Energy is a San Jose, California clean-energy hardware company founded by Justin Briggs, Andrew Ponec
  and David Bierman that designs, manufactures and deploys factory-built thermal batteries for heavy industry, data centers
  and the grid. Antora''s system resistively heats blocks of solid carbon to temperatures up to 2,400C when electricity is
  cheapest, stores that energy for multiple days in a compact modular unit, and discharges it around the clock as radiant
  heat delivered directly to industrial processes or paired with off-the-shelf steam turbine equipment for firm power; the
  company also develops thermophotovoltaic (TPV) heat-to-power cells at what it describes as the world''s largest TPV manufacturing
  line. Its HeatCore product delivers heat up to 375C at 300 kW-thermal per module, and its power block is rated at 50 MW-electric.
  Antora''s first giga-scale deployment, Project Big Stone, is a 5 GWh system of more than 200 thermal batteries at POET''s
  bioprocessing plant in Big Stone City, South Dakota, built from empty lot to energy delivery in under twelve months. The
  company closed a $550 million Series C in 2026. Antora sells energy hardware and long-term energy offtake rather than software:
  it publishes no developer program, no public API, no SDK and no machine-readable API contract, and its only public software
  surface is Insight, an authenticated steam and power optimization dashboard for named project stakeholders.'
image: https://www.antora.com/android-chrome-512x512.png
url: https://raw.githubusercontent.com/api-evangelist/antora-energy/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profile
x-tier-reason: no-api-surface
specificationVersion: '0.20'
created: '2026-08-06'
modified: '2026-08-06'
tags:
- Company
- Energy
- Clean Energy
- Thermal Energy Storage
- Energy Storage
- Industrial Heat
- Thermophotovoltaics
- Manufacturing
- Data Centers
- Decarbonization
- Climate Tech
- California
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.antora.com/
- type: About
  url: https://www.antora.com/company
- type: Technology
  url: https://www.antora.com/technology
- type: Product
  url: https://www.antora.com/solutions
- type: Manufacturing
  url: https://www.antora.com/manufacturing
- type: CaseStudy
  url: https://www.antora.com/project-big-stone
  description: Project Big Stone, a 5 GWh thermal energy storage deployment at POET's Big Stone City, South Dakota bioprocessing
    facility.
- type: Blog
  url: https://www.antora.com/insights
- type: PressReleases
  url: https://www.antora.com/insights?category=press
- type: Careers
  url: https://www.antora.com/careers
- type: Contact
  url: https://www.antora.com/contact
- type: TermsOfService
  url: https://www.antora.com/terms
- type: PrivacyPolicy
  url: https://www.antora.com/privacy
- type: SupplierCodeOfConduct
  url: https://www.antora.com/suppliercoc
- type: LinkedIn
  url: https://linkedin.com/company/antora-energy
- type: Twitter
  url: https://x.com/antoraenergy
- type: Application
  url: https://app.antora.com/
  description: 'Insight: an authenticated Next.js real-time steam and power optimization dashboard for POET and Antora stakeholders.
    No public API routes, OpenAPI, GraphQL or agent surface were observable in its client bundle.'
- type: SecondaryMarket
  url: https://forgeglobal.com/antora-energy_stock/
- type: DomainSecurity
  url: security/antora-energy-domain-security.yml
- type: DiscoveryProbe
  url: well-known/antora-energy-well-known.yml
  description: Negative probe record. No .well-known document is served on any Antora host; deliberately NOT typed WellKnown,
    because no such document exists.
- type: LLMsTxt
  url: llms/antora-energy-llms.txt
x-enrichment:
  date: '2026-08-06'
  status: minimal
  artifacts_added: 3
  pass: local-v1
x-coverage:
  state: none
  reason: not-a-software-company
  detail: Antora Energy manufactures thermal battery hardware and sells industrial heat and power under long-term offtake
    agreements, so there is no product to expose as an API; its only software surface is Insight, an authenticated dashboard
    at app.antora.com built for POET and Antora project stakeholders, whose client bundle contains no first-party API host,
    and api./developers./docs./portal.antora.com do not resolve in DNS at all.
  evidence:
  - url: https://www.antora.com/openapi.json
    status: 404
  - url: https://www.antora.com/llms.txt
    status: 404
  - url: https://www.antora.com/.well-known/agent-card.json
    status: 404
  - url: https://www.antora.com/.well-known/security.txt
    status: 404
  - url: https://app.antora.com/graphql
    status: 404
  - url: https://app.antora.com/definitely-not-a-real-path-zzz9
    status: 404
  checked: '2026-08-06'