StarTree

StarTree is a real-time analytics platform built on Apache Pinot, the open-source OLAP database for user-facing and agent-facing analytics. StarTree Cloud is the fully managed, enterprise-grade service — sub-second queries at high concurrency, streaming and batch ingestion up to millions of events per second, scalable upserts, in-place queries on Apache Iceberg tables, and ThirdEye anomaly detection. It ships enterprise security (RBAC, SSO, encryption, SOC 2 / ISO 27001 / HIPAA) with SaaS, BYOC, and BYOK deployment options, and exposes Controller, Broker, and Query REST APIs plus an official MCP server for agents.

StarTree publishes 1 API contract indexed on the APIs.io network: Query API. Tagged areas include Company, Data, Analytics, Real-Time Analytics, and OLAP.

The StarTree catalog on APIs.io includes 1 Spectral governance ruleset.

StarTree’s developer surface includes engineering blog, documentation, API reference, getting-started guide, support, pricing, signup flow, and 25 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

60.3/100 strong ▬ flat Agent 27/100 agent aware Front door AI 4/6 moderate Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

1 published contract 1 MCP Servers 1 Agent Skills

Company Data Analytics Real-Time Analytics OLAPApache PinotStreaming Database

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 60.3/100 · strong

Contract Quality 9.0 / 19

Developer Ergonomics 8.1 / 15

Access Clarity 13.8 / 15

Operational Transparency 4.4 / 10

Contract Governance 2.9 / 9

Discoverability 5.4 / 8

Regulatory Posture 5.3 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 27/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 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

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 Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 47.8 — up to +13.1 composite points
Developer Ergonomics scores 54.2 — up to +9.2 composite points
Contract Governance scores 31.8 — up to +8.2 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/startree/apis.yml: open an issue on github.com/api-evangelist/startree to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 1

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

StarTree Query API

The Query API API from StarTree — 1 operation(s) for query api.

Open Collections 1

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

StarTree Cloud Query Query API API

OPEN COLLECTION

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

StarTree MCP Server

Official StarTree MCP server for Apache Pinot. Lets an agent list tables, segments, and schema info and execute read-only SQL queries against a Pinot / StarTree Cloud cluster.

MCP SERVER

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

Run a SQL query on StarTree Cloud

AGENT SKILL

StarTree API pricing

Prices published by StarTree, read 2026-10-28 from startree.ai/pricing/.

Plan	Price
Public SaaS	$0.21/hr ** per production vCPU Includes: Platform, managed service, and dedicated infrastructure. Nothing shared. All inclusive based pricing
Private BYOC	$0.11/hr ** per production vCPU Includes: Platform and managed service only. Infrastructure billed by your provider.
BYOK	Let's Talk Includes: Runs in your own Kubernetes cluster; supports fully air-gapped deployments

Plan details, limits and sources →

Billed by: production vcpu per hour · FinOps profile →

Pricing Plans 1

Published pricing tiers and plan structures.

Startree Plans Pricing

3 plans

PLANS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

StarTree

SLA

FinOps 1

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

Startree Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

StarTree API Rules

47 rules · 45 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Startree Query Overlay

2 actions · update · startree-query-openapi.json

DERIVED

Security Posture 3

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

Startree Authentication

http · 1 scheme

SECURITY

Startree Domain Security

TLSv1.3 · DMARC

SECURITY

Startree Vulnerability Disclosure

no policy recorded

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Startree Agentic Access

1 operation · 1 acting

1 operations · 1 acting

AGENTIC

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 4

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

MCPServer

AgentSkill

AgenticAccess

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Conventions

Conventions

Lifecycle

Lifecycle

Conformance

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 5

Authentication, authorization, and security posture

Compliance

Compliance

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

ChangeLog

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 4

The organization behind the API

Blog

BlogRSS

Blog

Website

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: startree
name: StarTree
description: StarTree is a real-time analytics platform built on Apache Pinot, the open-source OLAP database for user-facing
  and agent-facing analytics. StarTree Cloud is the fully managed, enterprise-grade service — sub-second queries at high concurrency,
  streaming and batch ingestion up to millions of events per second, scalable upserts, in-place queries on Apache Iceberg
  tables, and ThirdEye anomaly detection. It ships enterprise security (RBAC, SSO, encryption, SOC 2 / ISO 27001 / HIPAA)
  with SaaS, BYOC, and BYOK deployment options, and exposes Controller, Broker, and Query REST APIs plus an official MCP server
  for agents.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://startree.ai/favicon.ico
url: https://raw.githubusercontent.com/api-evangelist/startree/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- crv
- ggv-capital
- sapphire-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
x-docs-hosting: vercel
tags:
- Company
- Data
- Analytics
- Real-Time Analytics
- OLAP
- Apache Pinot
- Streaming
- Database
apis:
- aid: startree:startree-query-api-api
  name: StarTree Query API
  description: The Query API API from StarTree — 1 operation(s) for query api.
  humanURL: https://docs.startree.ai/api-reference/introduction
  baseURL: https://broker.pinot.celpxu.cp.s7e.startree.cloud
  tags:
  - Query API
  properties:
  - type: OpenAPI
    url: openapi/startree-query-api-api-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/startree-plans-pricing.yml
- url: https://startree.ai/news/
  type: Blog
- url: https://startree.ai/feed/
  type: BlogRSS
- type: Overlay
  url: overlays/startree-query-overlay.yaml
- type: DeveloperPortal
  url: https://docs.startree.ai/
- type: Documentation
  url: https://docs.startree.ai/
- type: APIReference
  url: https://docs.startree.ai/api-reference/introduction
- type: GettingStarted
  url: https://docs.startree.ai/getting-started
- type: Support
  url: https://support.startree.ai/
- type: Blog
  url: https://startree.ai/blog
- type: GitHubOrganization
  url: https://github.com/startreedata
- type: Pricing
  url: https://startree.ai/pricing/
- type: SignUp
  url: https://startree.ai/trial/
- type: TermsOfService
  url: https://startree.ai/terms-conditions
- type: PrivacyPolicy
  url: https://startree.ai/privacy-policy
- type: StatusPage
  url: https://startree.statuspage.io
- type: LLMsTxt
  url: llms/startree-llms.txt
- type: Packages
  url: packages/startree-packages.yml
- type: SDKs
  url: packages/startree-packages.yml
- type: MCPServer
  url: mcp/startree-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Conventions
  url: conventions/startree-conventions.yml
- type: Lifecycle
  url: lifecycle/startree-lifecycle.yml
- type: ChangeLog
  url: changelog/startree-changelog.yml
- type: Conformance
  url: conformance/startree-conformance.yml
- type: Compliance
  url: https://startree.ai/
- type: AgenticAccess
  url: agentic-access/startree-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/startree-vulnerability-disclosure.yml
- type: Security
  url: https://startree.ai/responsible-disclosure/
- type: DomainSecurity
  url: security/startree-domain-security.yml
- type: Authentication
  url: authentication/startree-authentication.yml
- type: Website
  url: https://startree.ai/
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 14
  pass: local-v1

StarTree API — frequently asked questions

Does StarTree have an API?

Yes. APIs.io lists 1 API from StarTree, including StarTree Query API.

Is there an OpenAPI specification for the StarTree API?

Yes. APIs.io indexes 1 OpenAPI specification for StarTree, each linked for download from this page.

How do I authenticate with the StarTree API?

StarTree uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Startree Authentication.

How much does the StarTree API cost?

StarTree publishes its prices; its Public SaaS plan is $0.21/hr ** per production vCPU as of 2026-10-28. APIs.io lists 3 pricing plans for StarTree, with each plan's price, limits and inclusions under Pricing on this page.

Does StarTree have an MCP server?

Yes. APIs.io lists 1 MCP server for StarTree: Official StarTree MCP server for Apache Pinot. Lets an agent list tables, segments, and schema info and execute read-only SQL queries against a Pinot / StarTree Cloud cluster.

Is the StarTree API ready for AI agents?

StarTree has a Kin Score of 60.3 out of 100 (strong) and an Agent Readiness score of 26.7 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

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Tools for providers

9 MCP tools reach this

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get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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