Refuel

Refuel is a data labeling and enrichment platform that uses large language models to label, clean, structure, and enrich text datasets at scale. Its Refuel Cloud service lets teams define labeling tasks, connect datasets from cloud storage and data warehouses (Amazon S3, Google Cloud Storage, Snowflake, Databricks), finetune models, chain tasks, evaluate LLM outputs, and deploy applications that transform new data in realtime or in batch. Refuel also publishes the open-source autolabel Python library and first-party Python and JavaScript SDKs for programmatic access, authenticated with API keys. Refuel is joining Together AI.

Refuel publishes 1 API on the APIs.io network. Tagged areas include Company, Data Labeling, Machine Learning, LLM, and Data Enrichment.

Refuel’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, signup flow, authentication, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub
28.5/100 emerging ▬ flat Agent 10/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
1 APIs
CompanyData LabelingMachine LearningLLMData EnrichmentArtificial IntelligenceData TransformationMLOpsSDK

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 28.5/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 11.7 / 20
Commercial Clarity 6.8 / 20
Operational Transparency 0.7 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 10/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 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
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/refuel: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Refuel Cloud API

Programmatic access to the Refuel Cloud platform for managing projects, datasets, labeling tasks, task runs, finetuned models, and deployed applications. Accessed through the fi...

Security Posture 2

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

Refuel Authentication

apiKey · 1 scheme

SECURITY

Refuel Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 DataModel
DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages
 SDKs
SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: refuel
name: Refuel
description: Refuel is a data labeling and enrichment platform that uses large language models to label, clean, structure,
  and enrich text datasets at scale. Its Refuel Cloud service lets teams define labeling tasks, connect datasets from cloud
  storage and data warehouses (Amazon S3, Google Cloud Storage, Snowflake, Databricks), finetune models, chain tasks, evaluate
  LLM outputs, and deploy applications that transform new data in realtime or in batch. Refuel also publishes the open-source
  autolabel Python library and first-party Python and JavaScript SDKs for programmatic access, authenticated with API keys.
  Refuel is joining Together AI.
url: https://raw.githubusercontent.com/api-evangelist/refuel/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://www.refuel.ai/
x-type: company
x-source: vc-portfolio
x-backed-by:
- general-catalyst
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Data Labeling
- Machine Learning
- LLM
- Data Enrichment
- Artificial Intelligence
- Data Transformation
- MLOps
- SDK
apis:
- name: Refuel Cloud API
  description: Programmatic access to the Refuel Cloud platform for managing projects, datasets, labeling tasks, task runs,
    finetuned models, and deployed applications. Accessed through the first-party Python (refuel) and JavaScript (refuel-sdk)
    SDKs; authenticated with an API key supplied via the REFUEL_API_KEY environment variable or an api_key initialization
    option.
  humanURL: https://docs.refuel.ai/quickstart
  baseURL: https://app.refuel.ai
  tags:
  - Data Labeling
  - LLM
  - Data Enrichment
  properties:
  - type: Documentation
    url: https://docs.refuel.ai/
  - type: GettingStarted
    url: https://docs.refuel.ai/quickstart
  - type: APIReference
    url: https://docs.refuel.ai/sdk/python
  - type: Authentication
    url: authentication/refuel-authentication.yml
  - type: Conventions
    url: conventions/refuel-conventions.yml
  - type: DataModel
    url: data-model/refuel-data-model.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 7
  pass: local-v1
common:
- type: DeveloperPortal
  url: https://docs.refuel.ai/
- type: Documentation
  url: https://docs.refuel.ai/
- type: APIReference
  url: https://docs.refuel.ai/sdk/python
- type: GettingStarted
  url: https://docs.refuel.ai/quickstart
- type: Blog
  url: https://www.refuel.ai/blog
- type: GitHubOrganization
  url: https://github.com/refuel-ai
- type: Support
  url: https://discord.gg/uEdr8nrMGm
- type: SignUp
  url: https://app.refuel.ai
- type: TermsOfService
  url: https://www.refuel.ai/terms-of-service
- type: PrivacyPolicy
  url: https://www.refuel.ai/privacy-policy
- type: Packages
  url: packages/refuel-packages.yml
- type: SDKs
  url: packages/refuel-packages.yml
- type: Authentication
  url: authentication/refuel-authentication.yml
- type: LLMsTxt
  url: llms/refuel-llms.txt
- type: Conventions
  url: conventions/refuel-conventions.yml
- type: DataModel
  url: data-model/refuel-data-model.yml
- type: DomainSecurity
  url: security/refuel-domain-security.yml