Chroma

Chroma (Chroma DB) is an open-source, AI-native vector database (embedding database) for building LLM, RAG, and semantic-search applications. It provides storage, indexing, and retrieval for vector embeddings with metadata filtering, full-text and regex search, and multi-modal retrieval across text, images, and audio. Chroma is Apache-2.0 licensed and self-hostable via a single server, and is also available as Chroma Cloud, a serverless, usage-based managed offering. Its HTTP/REST v2 API is organized around tenants, databases, collections, and the records (embeddings) inside each collection - add, upsert, update, get, query (similarity search), and delete - and is the same interface used by the Python, JavaScript/TypeScript, Rust, and other client libraries.

Chroma publishes 6 APIs on the APIs.io network, including Collections API, Databases API, Query API, and 3 more. Tagged areas include Vector Database, Vector Index, Vector Search, Vector Store, and Embeddings.

Chroma’s developer surface includes authentication, documentation, engineering blog, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

37.9/100 thin ▬ flat Agent 20/100 agent aware Full breakdown ↓
scored 2026-08-24 · rubric v0.13.0

AccessFreemiumSelf serve⚡ Free to try

6 APIs

Vector DatabaseVector IndexVector SearchVector StoreEmbeddingsSimilarity SearchRAG Semantic Search Artificial Intelligence AI Inference Machine-Learning Open-Source

Kin Score

Kin Score How this is scored →
scored 2026-08-24 · rubric v0.13.0

Composite quality — 37.9/100 · thin

Contract Quality 13.4 / 25

Developer Ergonomics 4.8 / 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

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/chroma-db: 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 6

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

Rate Limits 1

Documented rate limits and quota policies.

Chroma Db Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

AGENTIC

Resources

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 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: chroma-db
url: https://raw.githubusercontent.com/api-evangelist/chroma-db/refs/heads/main/apis.yml
name: Chroma
kind: company
description: Chroma (Chroma DB) is an open-source, AI-native vector database (embedding database) for building LLM, RAG, and
  semantic-search applications. It provides storage, indexing, and retrieval for vector embeddings with metadata filtering,
  full-text and regex search, and multi-modal retrieval across text, images, and audio. Chroma is Apache-2.0 licensed and
  self-hostable via a single server, and is also available as Chroma Cloud, a serverless, usage-based managed offering. Its
  HTTP/REST v2 API is organized around tenants, databases, collections, and the records (embeddings) inside each collection
  - add, upsert, update, get, query (similarity search), and delete - and is the same interface used by the Python, JavaScript/TypeScript,
  Rust, and other client libraries.
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/chroma-db.png
tags:
- Vector Database
- Vector Index
- Vector Search
- Vector Store
- Embeddings
- Similarity Search
- RAG
- Semantic Search
- Artificial Intelligence
- AI Inference
- Machine-Learning
- Open-Source
tags_raw:
- Vector Database
- Vector Index
- Vector Search
- Vector Store
- Embeddings
- Similarity Search
- RAG
- Semantic Search
- AI
- AI Inference
- Machine Learning
- Open Source
created: '2026-07-12'
modified: '2026-07-12'
specificationVersion: '0.23'
apis:
- aid: chroma-db:chroma-db-collections-api
  name: Chroma Collections API
  description: Named vector stores holding embeddings and metadata.
  humanURL: https://docs.trychroma.com/reference/chroma-reference
  baseURL: https://api.trychroma.com
  tags:
  - Collection
  tags_raw:
  - Collections
  properties:
  - type: OpenAPI
    url: openapi/chroma-db-collections-api-openapi.yml
  - type: Documentation
    url: https://docs.trychroma.com/docs/collections/manage-collections
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-reference
  - type: PostmanCollection
    url: collections/chroma-db.postman_collection.json
  - type: OpenCollection
    url: collections/chroma-db.opencollection.json
  - type: Documentation
    url: https://docs.trychroma.com/docs/collections/add-data
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-api/record/add-records
  - type: Documentation
    url: https://docs.trychroma.com/docs/querying-collections/query-and-get
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-api/record/query-collection
  - type: Documentation
    url: https://docs.trychroma.com/docs/overview/architecture
- aid: chroma-db:chroma-db-databases-api
  name: Chroma Databases API
  description: Logical grouping of collections within a tenant.
  humanURL: https://docs.trychroma.com/reference/chroma-reference
  baseURL: https://api.trychroma.com
  tags:
  - Databases
  properties:
  - type: OpenAPI
    url: openapi/chroma-db-databases-api-openapi.yml
  - type: Documentation
    url: https://docs.trychroma.com/docs/collections/manage-collections
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-reference
  - type: PostmanCollection
    url: collections/chroma-db.postman_collection.json
  - type: OpenCollection
    url: collections/chroma-db.opencollection.json
  - type: Documentation
    url: https://docs.trychroma.com/docs/collections/add-data
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-api/record/add-records
  - type: Documentation
    url: https://docs.trychroma.com/docs/querying-collections/query-and-get
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-api/record/query-collection
  - type: Documentation
    url: https://docs.trychroma.com/docs/overview/architecture
- aid: chroma-db:chroma-db-query-api
  name: Chroma Query API
  description: Nearest-neighbor vector similarity search over a collection.
  humanURL: https://docs.trychroma.com/reference/chroma-reference
  baseURL: https://api.trychroma.com
  tags:
  - Query
  properties:
  - type: OpenAPI
    url: openapi/chroma-db-query-api-openapi.yml
  - type: Documentation
    url: https://docs.trychroma.com/docs/collections/manage-collections
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-reference
  - type: PostmanCollection
    url: collections/chroma-db.postman_collection.json
  - type: OpenCollection
    url: collections/chroma-db.opencollection.json
  - type: Documentation
    url: https://docs.trychroma.com/docs/collections/add-data
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-api/record/add-records
  - type: Documentation
    url: https://docs.trychroma.com/docs/querying-collections/query-and-get
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-api/record/query-collection
  - type: Documentation
    url: https://docs.trychroma.com/docs/overview/architecture
- aid: chroma-db:chroma-db-records-api
  name: Chroma Records API
  description: Embeddings (with documents, metadata, URIs) inside a collection.
  humanURL: https://docs.trychroma.com/reference/chroma-reference
  baseURL: https://api.trychroma.com
  tags:
  - Records
  properties:
  - type: OpenAPI
    url: openapi/chroma-db-records-api-openapi.yml
  - type: Documentation
    url: https://docs.trychroma.com/docs/collections/manage-collections
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-reference
  - type: PostmanCollection
    url: collections/chroma-db.postman_collection.json
  - type: OpenCollection
    url: collections/chroma-db.opencollection.json
  - type: Documentation
    url: https://docs.trychroma.com/docs/collections/add-data
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-api/record/add-records
  - type: Documentation
    url: https://docs.trychroma.com/docs/querying-collections/query-and-get
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-api/record/query-collection
  - type: Documentation
    url: https://docs.trychroma.com/docs/overview/architecture
- aid: chroma-db:chroma-db-system-api
  name: Chroma System API
  description: Server health, version, and pre-flight operational endpoints.
  humanURL: https://docs.trychroma.com/reference/chroma-reference
  baseURL: https://api.trychroma.com
  tags:
  - System
  properties:
  - type: OpenAPI
    url: openapi/chroma-db-system-api-openapi.yml
  - type: Documentation
    url: https://docs.trychroma.com/docs/collections/manage-collections
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-reference
  - type: PostmanCollection
    url: collections/chroma-db.postman_collection.json
  - type: OpenCollection
    url: collections/chroma-db.opencollection.json
  - type: Documentation
    url: https://docs.trychroma.com/docs/collections/add-data
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-api/record/add-records
  - type: Documentation
    url: https://docs.trychroma.com/docs/querying-collections/query-and-get
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-api/record/query-collection
  - type: Documentation
    url: https://docs.trychroma.com/docs/overview/architecture
- aid: chroma-db:chroma-db-tenants-api
  name: Chroma Tenants API
  description: Top-level isolation boundary that owns databases.
  humanURL: https://docs.trychroma.com/reference/chroma-reference
  baseURL: https://api.trychroma.com
  tags:
  - Tenants
  properties:
  - type: OpenAPI
    url: openapi/chroma-db-tenants-api-openapi.yml
  - type: Documentation
    url: https://docs.trychroma.com/docs/collections/manage-collections
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-reference
  - type: PostmanCollection
    url: collections/chroma-db.postman_collection.json
  - type: OpenCollection
    url: collections/chroma-db.opencollection.json
  - type: Documentation
    url: https://docs.trychroma.com/docs/collections/add-data
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-api/record/add-records
  - type: Documentation
    url: https://docs.trychroma.com/docs/querying-collections/query-and-get
  - type: APIReference
    url: https://docs.trychroma.com/reference/chroma-api/record/query-collection
  - type: Documentation
    url: https://docs.trychroma.com/docs/overview/architecture
common:
- type: AgenticAccess
  url: agentic-access/chroma-db-agentic-access.yml
- type: DomainSecurity
  url: security/chroma-db-domain-security.yml
- type: Authentication
  url: authentication/chroma-db-authentication.yml
- type: GitHubOrganization
  url: https://github.com/chroma-core
- type: LinkedIn
  url: https://www.linkedin.com/company/trychroma
- type: Website
  url: https://www.trychroma.com
- type: Documentation
  url: https://docs.trychroma.com
- type: Plans
  url: plans/chroma-db-plans-pricing.yml
- type: RateLimits
  url: rate-limits/chroma-db-rate-limits.yml
- type: FinOps
  url: finops/chroma-db-finops.yml
- url: https://www.trychroma.com/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
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.

All 92 tools

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/chroma-db"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/chroma-db/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/chroma-db/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.