Klu

Klu (klu.ai) is an LLM app platform for designing, deploying, evaluating, and observing prompt-driven AI applications. The Klu Engine exposes a REST API at https://api.klu.ai/v1 (Bearer API key) where an Action encapsulates a prompt template, model config, context (RAG), and output parsing, and is invoked to generate completions, with data, feedback, sessions, and models managed alongside it. NOTE - product development appears dormant - the official klu SDK last shipped in March 2025 and the founding team's recent open-source work has shifted toward xAI / Grok tooling - see review.yml for the honest status assessment.

Klu publishes 8 APIs on the APIs.io network, including Actions API, Apps API, Context API, and 5 more. Tagged areas include Artificial Intelligence, LLM, LLM App Platform, Prompt Engineering, and Evaluation.

Klu’s developer surface includes authentication, documentation, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

37.5/100 thin ▬ flat Agent 20/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessPaidSelf serve

8 APIs

Artificial Intelligence LLMLLM App PlatformPrompt Engineering Evaluation Observability

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 37.5/100 · thin

Contract Quality 13.5 / 25

Developer Ergonomics 4.3 / 20

Access Clarity 7.9 / 20

Operational Transparency 4.4 / 13

Contract Governance 0.0 / 12

Discoverability 7.4 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

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 7 / 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

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/klu-ai: 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 8

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

Open Collections 10

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Rate Limits 1

Documented rate limits and quota policies.

Klu Ai Rate Limits

3 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 2

The organization behind the API

LinkedIn

Website

Website

Source (apis.yml)

aid: klu-ai
url: https://raw.githubusercontent.com/api-evangelist/klu-ai/refs/heads/main/apis.yml
name: Klu
kind: company
description: Klu (klu.ai) is an LLM app platform for designing, deploying, evaluating, and observing prompt-driven AI applications.
  The Klu Engine exposes a REST API at https://api.klu.ai/v1 (Bearer API key) where an Action encapsulates a prompt template,
  model config, context (RAG), and output parsing, and is invoked to generate completions, with data, feedback, sessions,
  and models managed alongside it. NOTE - product development appears dormant - the official klu SDK last shipped in March
  2025 and the founding team's recent open-source work has shifted toward xAI / Grok tooling - see review.yml for the honest
  status assessment.
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/klu-ai.png
tags:
- Artificial Intelligence
- LLM
- LLM App Platform
- Prompt Engineering
- Evaluation
- Observability
tags_raw:
- AI
- LLM
- LLM App Platform
- Prompt Engineering
- Evaluation
- Observability
created: '2026-06-20'
modified: '2026-06-20'
specificationVersion: '0.23'
apis:
- aid: klu-ai:klu-ai-actions-api
  name: Klu Actions API
  description: Run Actions to generate completions.
  humanURL: https://docs.klu.ai/resources/api-actions
  baseURL: https://api.klu.ai/v1
  tags:
  - Actions
  properties:
  - type: OpenAPI
    url: openapi/klu-ai-actions-api-openapi.yml
  - type: Documentation
    url: https://docs.klu.ai/resources/api-actions
  - type: APIReference
    url: https://docs.klu.ai/resources/api-basics
  - type: PostmanCollection
    url: collections/klu-ai.postman_collection.json
  - type: OpenCollection
    url: collections/klu-ai.opencollection.json
  - type: Documentation
    url: https://docs.klu.ai/guides/data
  - type: APIReference
    url: https://docs.klu.ai/resources/api-context
  - type: Documentation
    url: https://docs.klu.ai/resources/api-basics
- aid: klu-ai:klu-ai-apps-api
  name: Klu Apps API
  description: Apps (projects) grouping Actions, context, and experiments.
  humanURL: https://docs.klu.ai/resources/api-actions
  baseURL: https://api.klu.ai/v1
  tags:
  - Application
  tags_raw:
  - Apps
  properties:
  - type: OpenAPI
    url: openapi/klu-ai-apps-api-openapi.yml
  - type: Documentation
    url: https://docs.klu.ai/resources/api-actions
  - type: APIReference
    url: https://docs.klu.ai/resources/api-basics
  - type: PostmanCollection
    url: collections/klu-ai.postman_collection.json
  - type: OpenCollection
    url: collections/klu-ai.opencollection.json
  - type: Documentation
    url: https://docs.klu.ai/guides/data
  - type: APIReference
    url: https://docs.klu.ai/resources/api-context
  - type: Documentation
    url: https://docs.klu.ai/resources/api-basics
- aid: klu-ai:klu-ai-context-api
  name: Klu Context API
  description: Manage Context libraries and documents for retrieval-augmented generation.
  humanURL: https://docs.klu.ai/resources/api-actions
  baseURL: https://api.klu.ai/v1
  tags:
  - Context
  properties:
  - type: OpenAPI
    url: openapi/klu-ai-context-api-openapi.yml
  - type: Documentation
    url: https://docs.klu.ai/resources/api-actions
  - type: APIReference
    url: https://docs.klu.ai/resources/api-basics
  - type: PostmanCollection
    url: collections/klu-ai.postman_collection.json
  - type: OpenCollection
    url: collections/klu-ai.opencollection.json
  - type: Documentation
    url: https://docs.klu.ai/guides/data
  - type: APIReference
    url: https://docs.klu.ai/resources/api-context
  - type: Documentation
    url: https://docs.klu.ai/resources/api-basics
- aid: klu-ai:klu-ai-data-api
  name: Klu Data API
  description: Data points produced by Action generations.
  humanURL: https://docs.klu.ai/resources/api-actions
  baseURL: https://api.klu.ai/v1
  tags:
  - Data
  properties:
  - type: OpenAPI
    url: openapi/klu-ai-data-api-openapi.yml
  - type: Documentation
    url: https://docs.klu.ai/resources/api-actions
  - type: APIReference
    url: https://docs.klu.ai/resources/api-basics
  - type: PostmanCollection
    url: collections/klu-ai.postman_collection.json
  - type: OpenCollection
    url: collections/klu-ai.opencollection.json
  - type: Documentation
    url: https://docs.klu.ai/guides/data
  - type: APIReference
    url: https://docs.klu.ai/resources/api-context
  - type: Documentation
    url: https://docs.klu.ai/resources/api-basics
- aid: klu-ai:klu-ai-feedback-api
  name: Klu Feedback API
  description: Ratings, corrections, and issues attached to data points.
  humanURL: https://docs.klu.ai/resources/api-actions
  baseURL: https://api.klu.ai/v1
  tags:
  - Feedback
  properties:
  - type: OpenAPI
    url: openapi/klu-ai-feedback-api-openapi.yml
  - type: Documentation
    url: https://docs.klu.ai/resources/api-actions
  - type: APIReference
    url: https://docs.klu.ai/resources/api-basics
  - type: PostmanCollection
    url: collections/klu-ai.postman_collection.json
  - type: OpenCollection
    url: collections/klu-ai.opencollection.json
  - type: Documentation
    url: https://docs.klu.ai/guides/data
  - type: APIReference
    url: https://docs.klu.ai/resources/api-context
  - type: Documentation
    url: https://docs.klu.ai/resources/api-basics
- aid: klu-ai:klu-ai-models-api
  name: Klu Models API
  description: LLM providers and models available in the workspace.
  humanURL: https://docs.klu.ai/resources/api-actions
  baseURL: https://api.klu.ai/v1
  tags:
  - Models
  properties:
  - type: OpenAPI
    url: openapi/klu-ai-models-api-openapi.yml
  - type: Documentation
    url: https://docs.klu.ai/resources/api-actions
  - type: APIReference
    url: https://docs.klu.ai/resources/api-basics
  - type: PostmanCollection
    url: collections/klu-ai.postman_collection.json
  - type: OpenCollection
    url: collections/klu-ai.opencollection.json
  - type: Documentation
    url: https://docs.klu.ai/guides/data
  - type: APIReference
    url: https://docs.klu.ai/resources/api-context
  - type: Documentation
    url: https://docs.klu.ai/resources/api-basics
- aid: klu-ai:klu-ai-sessions-api
  name: Klu Sessions API
  description: Session memory for multi-turn conversations.
  humanURL: https://docs.klu.ai/resources/api-actions
  baseURL: https://api.klu.ai/v1
  tags:
  - Sessions
  properties:
  - type: OpenAPI
    url: openapi/klu-ai-sessions-api-openapi.yml
  - type: Documentation
    url: https://docs.klu.ai/resources/api-actions
  - type: APIReference
    url: https://docs.klu.ai/resources/api-basics
  - type: PostmanCollection
    url: collections/klu-ai.postman_collection.json
  - type: OpenCollection
    url: collections/klu-ai.opencollection.json
  - type: Documentation
    url: https://docs.klu.ai/guides/data
  - type: APIReference
    url: https://docs.klu.ai/resources/api-context
  - type: Documentation
    url: https://docs.klu.ai/resources/api-basics
- aid: klu-ai:klu-ai-workspaces-api
  name: Klu Workspaces API
  description: Workspace administration.
  humanURL: https://docs.klu.ai/resources/api-actions
  baseURL: https://api.klu.ai/v1
  tags:
  - Workspaces
  properties:
  - type: OpenAPI
    url: openapi/klu-ai-workspaces-api-openapi.yml
  - type: Documentation
    url: https://docs.klu.ai/resources/api-actions
  - type: APIReference
    url: https://docs.klu.ai/resources/api-basics
  - type: PostmanCollection
    url: collections/klu-ai.postman_collection.json
  - type: OpenCollection
    url: collections/klu-ai.opencollection.json
  - type: Documentation
    url: https://docs.klu.ai/guides/data
  - type: APIReference
    url: https://docs.klu.ai/resources/api-context
  - type: Documentation
    url: https://docs.klu.ai/resources/api-basics
common:
- type: AgenticAccess
  url: agentic-access/klu-ai-agentic-access.yml
- type: DomainSecurity
  url: security/klu-ai-domain-security.yml
- type: Authentication
  url: authentication/klu-ai-authentication.yml
- type: GitHubOrganization
  url: https://github.com/klu-ai
- type: LinkedIn
  url: https://www.linkedin.com/company/klu-ai
- type: Website
  url: https://klu.ai
- type: Documentation
  url: https://docs.klu.ai
- type: Plans
  url: plans/klu-ai-plans-pricing.yml
- type: RateLimits
  url: rate-limits/klu-ai-rate-limits.yml
- type: FinOps
  url: finops/klu-ai-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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