Extropic

Extropic is a hardware company building thermodynamic (probabilistic) computing systems designed to run generative AI workloads at dramatically lower energy cost than GPUs. Its core hardware is the Thermodynamic Sampling Unit (TSU) — an inherently probabilistic chip whose physics natively performs the sampling that probabilistic AI algorithms depend on — together with the XTR-0 prototype platform for low-latency communication between Extropic chips and traditional processors. Extropic also develops THRML, an open-source JAX library for building and sampling probabilistic graphical models (block Gibbs sampling and energy-based models), which serves as a simulator and prototyping surface for the block-sampling programs that will one day run on TSU hardware. Extropic is not an API provider: it ships no REST/GraphQL API, developer portal, or hosted service — its public developer surface is the THRML Python library, its documentation, and an agent skill. Backed by Kindred Ventures; surfaced to the API Evangelist network as an AI-hardware portfolio company.

Extropic is profiled on the APIs.io network. Tagged areas include Company, Ai, Hardware, Semiconductors, and Thermodynamic Computing.

Extropic’s developer surface includes documentation, API reference, getting-started guide, engineering blog, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

19.9/100 emerging ▬ flat Agent 5/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyAiHardwareSemiconductorsThermodynamic ComputingProbabilistic ComputingEnergy-Based ModelsMachine LearningOpen Source

Kin Score

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

Composite quality — 19.9/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 8.3 / 20

Commercial Clarity 4.2 / 20

Operational Transparency 0.7 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 5/100 · 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 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

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/extropic: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

SourceCode

Packages

SDKs

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: extropic
name: Extropic
description: 'Extropic is a hardware company building thermodynamic (probabilistic) computing systems designed to run generative
  AI workloads at dramatically lower energy cost than GPUs. Its core hardware is the Thermodynamic Sampling Unit (TSU) — an
  inherently probabilistic chip whose physics natively performs the sampling that probabilistic AI algorithms depend on —
  together with the XTR-0 prototype platform for low-latency communication between Extropic chips and traditional processors.
  Extropic also develops THRML, an open-source JAX library for building and sampling probabilistic graphical models (block
  Gibbs sampling and energy-based models), which serves as a simulator and prototyping surface for the block-sampling programs
  that will one day run on TSU hardware. Extropic is not an API provider: it ships no REST/GraphQL API, developer portal,
  or hosted service — its public developer surface is the THRML Python library, its documentation, and an agent skill. Backed
  by Kindred Ventures; surfaced to the API Evangelist network as an AI-hardware portfolio company.'
url: https://raw.githubusercontent.com/api-evangelist/extropic/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- kindred-ventures
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
image: https://extropic.ai/
tags:
- Company
- Ai
- Hardware
- Semiconductors
- Thermodynamic Computing
- Probabilistic Computing
- Energy-Based Models
- Machine Learning
- Open Source
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://extropic.ai/
- type: Documentation
  url: https://docs.thrml.ai/
- type: APIReference
  url: https://docs.thrml.ai/api-pgm.html
- type: GettingStarted
  url: https://docs.thrml.ai/getting-started.html
- type: Blog
  url: https://extropic.ai/writing
- type: GitHubOrganization
  url: https://github.com/extropic-ai
- type: SourceCode
  url: https://github.com/extropic-ai/thrml
- type: PrivacyPolicy
  url: https://extropic.ai/privacy-policy
- type: TermsOfService
  url: https://extropic.ai/terms-of-service
- type: Packages
  url: packages/extropic-packages.yml
- type: SDKs
  url: packages/extropic-packages.yml
- type: LLMsTxt
  url: llms/extropic-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: DomainSecurity
  url: security/extropic-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence