Lunary

Lunary is an open-source LLM observability and evaluation platform: tracing, prompt management, datasets, evaluations, and analytics for LLM apps. Available as a hosted SaaS at lunary.ai and as a self-hosted Apache 2.0 deployment. Exposes a REST API authenticated with Bearer tokens.

Lunary publishes 13 APIs on the APIs.io network, including Analytics API, AuditLogs API, Checklists API, and 10 more. Tagged areas include AI Evaluation, Observability, Open-Source, LLM, and Tracing.

Lunary’s developer surface includes authentication, engineering blog, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

30.2/100 thin ▬ flat Agent 22/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFreemiumSelf serve⚡ Free to try

14 APIs

AI Evaluation Observability Open-Source LLM Tracing Prompts

Kin Score

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

Composite quality — 30.2/100 · thin

Contract Quality 13.4 / 25

Developer Ergonomics 4.8 / 20

Access Clarity 3.2 / 20

Operational Transparency 0.7 / 13

Contract Governance 0.0 / 12

Discoverability 8.2 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 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/lunary: 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 14

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

Open Collections 15

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

Rate Limits 1

Documented rate limits and quota policies.

Lunary Rate Limits

1 limits

RATE LIMITS

FinOps 1

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

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

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 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

OpenSource

OpenSource

Source (apis.yml)

aid: lunary
url: https://raw.githubusercontent.com/api-evangelist/lunary/refs/heads/main/apis.yml
name: Lunary
kind: company
description: 'Lunary is an open-source LLM observability and evaluation platform: tracing, prompt management, datasets, evaluations,
  and analytics for LLM apps. Available as a hosted SaaS at lunary.ai and as a self-hosted Apache 2.0 deployment. Exposes
  a REST API authenticated with Bearer tokens.'
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · 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/lunary.png
tags:
- AI Evaluation
- Observability
- Open-Source
- LLM
- Tracing
- Prompts
tags_raw:
- AI Evaluation
- Observability
- Open Source
- LLM
- Tracing
- Prompts
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.23'
apis:
- aid: lunary:platform
  name: Lunary API
  description: REST API for Lunary covering ingestion (logs/traces), prompts (template management with versions and labels),
    datasets, evaluations, projects, users, and analytics. Authentication uses Bearer tokens; private API keys for management
    endpoints, public keys for ingestion.
  humanURL: https://docs.lunary.ai/api
  baseURL: https://api.lunary.ai/v1
  tags:
  - Logs
  - Traces
  - Prompts
  - Datasets
  - Evaluations
  properties:
  - type: Documentation
    url: https://docs.lunary.ai/api
  - type: GitHub
    url: https://github.com/lunary-ai/lunary
  - type: SelfHost
    url: https://lunary.ai/docs/self-hosting
- aid: lunary:lunary-analytics-api
  name: Lunary Analytics API
  description: The Analytics API from Lunary — 1 operation(s) for analytics.
  humanURL: https://docs.lunary.ai/api
  baseURL: https://api.lunary.ai/v1
  tags:
  - Analytics
  properties:
  - type: OpenAPI
    url: openapi/lunary-analytics-api-openapi.yml
- aid: lunary:lunary-auditlogs-api
  name: Lunary AuditLogs API
  description: The AuditLogs API from Lunary — 1 operation(s) for auditlogs.
  humanURL: https://docs.lunary.ai/api
  baseURL: https://api.lunary.ai/v1
  tags:
  - Audit Logs
  tags_raw:
  - AuditLogs
  properties:
  - type: OpenAPI
    url: openapi/lunary-auditlogs-api-openapi.yml
- aid: lunary:lunary-checklists-api
  name: Lunary Checklists API
  description: The Checklists API from Lunary — 2 operation(s) for checklists.
  humanURL: https://docs.lunary.ai/api
  baseURL: https://api.lunary.ai/v1
  tags:
  - Checklists
  properties:
  - type: OpenAPI
    url: openapi/lunary-checklists-api-openapi.yml
- aid: lunary:lunary-datasets-api
  name: Lunary Datasets API
  description: The Datasets API from Lunary — 3 operation(s) for datasets.
  humanURL: https://docs.lunary.ai/api
  baseURL: https://api.lunary.ai/v1
  tags:
  - Datasets
  properties:
  - type: OpenAPI
    url: openapi/lunary-datasets-api-openapi.yml
- aid: lunary:lunary-datasetsv2-api
  name: Lunary DatasetsV2 API
  description: The DatasetsV2 API from Lunary — 13 operation(s) for datasetsv2.
  humanURL: https://docs.lunary.ai/api
  baseURL: https://api.lunary.ai/v1
  tags:
  - DatasetsV2
  properties:
  - type: OpenAPI
    url: openapi/lunary-datasetsv2-api-openapi.yml
- aid: lunary:lunary-evals-api
  name: Lunary Evals API
  description: The Evals API from Lunary — 7 operation(s) for evals.
  humanURL: https://docs.lunary.ai/api
  baseURL: https://api.lunary.ai/v1
  tags:
  - Evals
  properties:
  - type: OpenAPI
    url: openapi/lunary-evals-api-openapi.yml
- aid: lunary:lunary-externalusers-api
  name: Lunary ExternalUsers API
  description: The ExternalUsers API from Lunary — 2 operation(s) for externalusers.
  humanURL: https://docs.lunary.ai/api
  baseURL: https://api.lunary.ai/v1
  tags:
  - External Users
  tags_raw:
  - ExternalUsers
  properties:
  - type: OpenAPI
    url: openapi/lunary-externalusers-api-openapi.yml
- aid: lunary:lunary-models-api
  name: Lunary Models API
  description: The Models API from Lunary — 2 operation(s) for models.
  humanURL: https://docs.lunary.ai/api
  baseURL: https://api.lunary.ai/v1
  tags:
  - Models
  properties:
  - type: OpenAPI
    url: openapi/lunary-models-api-openapi.yml
- aid: lunary:lunary-playground-api
  name: Lunary Playground API
  description: The Playground API from Lunary — 2 operation(s) for playground.
  humanURL: https://docs.lunary.ai/api
  baseURL: https://api.lunary.ai/v1
  tags:
  - Playground
  properties:
  - type: OpenAPI
    url: openapi/lunary-playground-api-openapi.yml
- aid: lunary:lunary-runs-api
  name: Lunary Runs API
  description: The Runs API from Lunary — 10 operation(s) for runs.
  humanURL: https://docs.lunary.ai/api
  baseURL: https://api.lunary.ai/v1
  tags:
  - Runs
  properties:
  - type: OpenAPI
    url: openapi/lunary-runs-api-openapi.yml
- aid: lunary:lunary-templates-api
  name: Lunary Templates API
  description: The Templates API from Lunary — 5 operation(s) for templates.
  humanURL: https://docs.lunary.ai/api
  baseURL: https://api.lunary.ai/v1
  tags:
  - Templates
  properties:
  - type: OpenAPI
    url: openapi/lunary-templates-api-openapi.yml
- aid: lunary:lunary-testendpoint-api
  name: Lunary TestEndpoint API
  description: The TestEndpoint API from Lunary — 2 operation(s) for testendpoint.
  humanURL: https://docs.lunary.ai/api
  baseURL: https://api.lunary.ai/v1
  tags:
  - TestEndpoint
  properties:
  - type: OpenAPI
    url: openapi/lunary-testendpoint-api-openapi.yml
- aid: lunary:lunary-views-api
  name: Lunary Views API
  description: The Views API from Lunary — 2 operation(s) for views.
  humanURL: https://docs.lunary.ai/api
  baseURL: https://api.lunary.ai/v1
  tags:
  - Views
  properties:
  - type: OpenAPI
    url: openapi/lunary-views-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/lunary-agentic-access.yml
- type: DomainSecurity
  url: security/lunary-domain-security.yml
- type: Authentication
  url: authentication/lunary-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/lunaryai
- type: Website
  url: https://lunary.ai/
- type: DeveloperPortal
  url: https://docs.lunary.ai/
- type: OpenSource
  url: https://github.com/lunary-ai/lunary
- type: Plans
  url: plans/lunary-plans-pricing.yml
- type: RateLimits
  url: rate-limits/lunary-rate-limits.yml
- type: FinOps
  url: finops/lunary-finops.yml
- type: Integrations
  url: https://lunary.ai/integrations
- type: LlmsText
  url: https://docs.lunary.ai/llms.txt
- url: https://lunary.ai/blog
  type: Blog
integrations:
- name: Anthropic
- name: Flowise
- name: LangChain
- name: OpenRouter
- name: IBM WatsonX
- name: Mistral
- name: Grok
- name: Fireworks AI
- name: Ragas
- name: PowerBI
- name: Tableau
- name: MySQL
- name: Gemini
- name: AWS Bedrock
- name: Amplitude
- name: Airbyte
- name: Segment
- name: Email / SMTP
- name: Slack
- name: Zapier
- name: Redshift
- name: PostHog
- name: OpenLLMetry
- name: LlamaIndex
- name: SQL Server
- name: Databricks
- name: Snowflake
- name: LiteLLM
- name: Langflow
- name: Google BigQuery
- name: OpenAI
- name: Azure OpenAI
- name: SOC 2 Type II
- name: ISO 27001
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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