Cognee

Cognee is an open-source AI memory and knowledge graph platform that enables developers to build persistent, structured memory for AI agents and LLM applications. The platform provides a REST API and Python/TypeScript SDKs for ingesting documents and data from 28+ sources, processing them through a six-stage ECL (Extract, Cognify, Load) pipeline, and storing the resulting entities and relationships in a hybrid graph-vector-relational store. Developers can query the knowledge graph using 13+ search modes including semantic graph completion, RAG completion, and temporal search. Cognee is available as a managed cloud service on AWS, GCP, and Azure, or as a self-hosted deployment via Docker, Modal, Railway, Fly.io, and Render.

Cognee publishes 7 APIs on the APIs.io network, including agents API, cognify API, data API, and 4 more. Tagged areas include Artificial Intelligence, Memory, Knowledge Graph, RAG, and Agents.

The Cognee catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Cognee’s developer surface includes authentication, documentation, engineering blog, pricing, and 20 more developer resources.

🌐 Visit website 📡 Source on GitHub

51.9/100 developing ▬ flat Agent 28/100 agent aware open core · Apache-2.0 Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs

Artificial Intelligence Memory Knowledge Graph RAG Agents Graph Database Vector Search LLM Open-Source

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 51.9/100 · developing

Contract Quality 11.9 / 20

Developer Ergonomics 4.6 / 16

Access Clarity 8.0 / 16

Operational Transparency 5.5 / 10

Contract Governance 2.4 / 10

Discoverability 5.5 / 8

Open Source Surface 10.0 / 10

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 28/100 · 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 8 / 8

Request/Response Examples 7 / 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 Well-Known Document 0 / 5

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against 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 80 points between them, because the conditional facet above carries the other 20. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 80% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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 github.com/api-evangelist/cognee: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 7

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

Cognee agents API

AI agent identity management

Cognee cognify API

Knowledge graph construction pipeline

Cognee data API

Data ingestion and deletion operations

Cognee datasets API

Dataset management and introspection

Cognee health API

Service health probes

Cognee search API

Semantic and graph search queries

Cognee settings API

System configuration (LLM and vector DB)

Scroll for all 7

Open Collections 8

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

API Collection

OPEN COLLECTION

Cognee REST agents API

OPEN COLLECTION

Cognee REST agents cognify API

OPEN COLLECTION

Cognee REST agents data API

OPEN COLLECTION

Cognee REST agents datasets API

OPEN COLLECTION

Cognee REST agents health API

OPEN COLLECTION

Cognee REST agents search API

OPEN COLLECTION

Cognee REST agents settings API

OPEN COLLECTION

Scroll for all 8

Pricing Plans 1

Published pricing tiers and plan structures.

Cognee Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Cognee Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Cognee Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Cognee Context

1 classes · 42 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Cognee API Rules

5 rules · 4 warnings 1 info

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

Cognee Dataset

5 properties

JSON SCHEMA

Cognee Search Payload

12 properties

JSON SCHEMA

Examples 1

Example request and response payloads for these APIs.

Cognee Search Example

3 fields

EXAMPLE

Security Posture 2

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

Cognee Authentication

apiKey/http · 2 schemes

SECURITY

Cognee Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Cognee Agentic Access

22 operations · 10 acting

AGENTIC

Resources

Documentation 2

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Vocabulary

Vocabulary

JSONLDContext

JSONLDContext

Build 3

SDKs, sample code, and the tooling you integrate with

CodeOfConduct

CodeOfConduct

GitHubOrg

GitHubOrg

GitHubRepository

GitHubRepository

Access & Security 3

Authentication, authorization, and security posture

SecurityPolicy

SecurityPolicy

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 4

Status, limits, changes, and where to get help

IssueTracker

Releases

Discord

RateLimits

Commercial 5

Pricing, plans, and the legal terms of use

License

Pricing

CostCalculator

Plans

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: cognee
name: Cognee
description: 'Cognee is an open-source AI memory and knowledge graph platform that enables developers to build persistent,
  structured memory for AI agents and LLM applications. The platform provides a REST API and Python/TypeScript SDKs for ingesting
  documents and data from 28+ sources, processing them through a six-stage ECL (Extract, Cognify, Load) pipeline, and storing
  the resulting entities and relationships in a hybrid graph-vector-relational store. Developers can query the knowledge graph
  using 13+ search modes including semantic graph completion, RAG completion, and temporal search. Cognee is available as
  a managed cloud service on AWS, GCP, and Azure, or as a self-hosted deployment via Docker, Modal, Railway, Fly.io, and Render.

  '
type: Index
deliveryModel:
  model: open-core
  license: Apache-2.0
  open_source: true
  commercial: true
  callable_host: true
  label: Open core · an OSS project plus a commercial hosted product
  confidence: high
  source:
  - license
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/cognee.png
url: https://raw.githubusercontent.com/api-evangelist/cognee/refs/heads/main/apis.yml
created: '2026-06-12'
modified: '2026-06-12'
specificationVersion: '0.23'
tags:
- Artificial Intelligence
- Memory
- Knowledge Graph
- RAG
- Agents
- Graph Database
- Vector Search
- LLM
- Open-Source
tags_raw:
- AI
- Memory
- Knowledge Graph
- RAG
- Agents
- Graph Database
- Vector Search
- LLM
- Open Source
apis:
- aid: cognee:cognee-agents-api
  name: Cognee agents API
  description: AI agent identity management
  humanURL: https://docs.cognee.ai/api-reference/introduction
  baseURL: https://api.cognee.ai
  tags:
  - Agents
  tags_raw:
  - agents
  properties:
  - type: OpenAPI
    url: openapi/cognee-agents-api-openapi.yml
  - type: Documentation
    url: https://docs.cognee.ai/api-reference/introduction
  - type: SwaggerUI
    url: https://api.cognee.ai/docs
- aid: cognee:cognee-cognify-api
  name: Cognee cognify API
  description: Knowledge graph construction pipeline
  humanURL: https://docs.cognee.ai/api-reference/introduction
  baseURL: https://api.cognee.ai
  tags:
  - cognify
  properties:
  - type: OpenAPI
    url: openapi/cognee-cognify-api-openapi.yml
  - type: Documentation
    url: https://docs.cognee.ai/api-reference/introduction
  - type: SwaggerUI
    url: https://api.cognee.ai/docs
- aid: cognee:cognee-data-api
  name: Cognee data API
  description: Data ingestion and deletion operations
  humanURL: https://docs.cognee.ai/api-reference/introduction
  baseURL: https://api.cognee.ai
  tags:
  - Data
  tags_raw:
  - data
  properties:
  - type: OpenAPI
    url: openapi/cognee-data-api-openapi.yml
  - type: Documentation
    url: https://docs.cognee.ai/api-reference/introduction
  - type: SwaggerUI
    url: https://api.cognee.ai/docs
- aid: cognee:cognee-datasets-api
  name: Cognee datasets API
  description: Dataset management and introspection
  humanURL: https://docs.cognee.ai/api-reference/introduction
  baseURL: https://api.cognee.ai
  tags:
  - Datasets
  tags_raw:
  - datasets
  properties:
  - type: OpenAPI
    url: openapi/cognee-datasets-api-openapi.yml
  - type: Documentation
    url: https://docs.cognee.ai/api-reference/introduction
  - type: SwaggerUI
    url: https://api.cognee.ai/docs
- aid: cognee:cognee-health-api
  name: Cognee health API
  description: Service health probes
  humanURL: https://docs.cognee.ai/api-reference/introduction
  baseURL: https://api.cognee.ai
  tags:
  - Health
  tags_raw:
  - health
  properties:
  - type: OpenAPI
    url: openapi/cognee-health-api-openapi.yml
  - type: Documentation
    url: https://docs.cognee.ai/api-reference/introduction
  - type: SwaggerUI
    url: https://api.cognee.ai/docs
- aid: cognee:cognee-search-api
  name: Cognee search API
  description: Semantic and graph search queries
  humanURL: https://docs.cognee.ai/api-reference/introduction
  baseURL: https://api.cognee.ai
  tags:
  - Search
  tags_raw:
  - search
  properties:
  - type: OpenAPI
    url: openapi/cognee-search-api-openapi.yml
  - type: Documentation
    url: https://docs.cognee.ai/api-reference/introduction
  - type: SwaggerUI
    url: https://api.cognee.ai/docs
- aid: cognee:cognee-settings-api
  name: Cognee settings API
  description: System configuration (LLM and vector DB)
  humanURL: https://docs.cognee.ai/api-reference/introduction
  baseURL: https://api.cognee.ai
  tags:
  - Settings
  tags_raw:
  - settings
  properties:
  - type: OpenAPI
    url: openapi/cognee-settings-api-openapi.yml
  - type: Documentation
    url: https://docs.cognee.ai/api-reference/introduction
  - type: SwaggerUI
    url: https://api.cognee.ai/docs
common:
- type: IssueTracker
  url: https://github.com/topoteretes/cognee/issues
- type: Releases
  url: https://github.com/topoteretes/cognee/releases
- type: SecurityPolicy
  url: https://github.com/topoteretes/cognee/blob/main/SECURITY.md
- type: CodeOfConduct
  url: https://github.com/topoteretes/cognee/blob/main/CODE_OF_CONDUCT.md
- type: ContributionGuide
  url: https://github.com/topoteretes/cognee/blob/main/CONTRIBUTING.md
- type: License
  name: Apache-2.0
  url: https://github.com/topoteretes/cognee/blob/main/LICENSE
- type: AgenticAccess
  url: agentic-access/cognee-agentic-access.yml
- type: DomainSecurity
  url: security/cognee-domain-security.yml
- type: Authentication
  url: authentication/cognee-authentication.yml
- type: Website
  url: https://www.cognee.ai/
- type: Documentation
  url: https://docs.cognee.ai/
- type: GitHubOrg
  url: https://github.com/topoteretes
- type: GitHubRepository
  url: https://github.com/topoteretes/cognee
- type: LinkedIn
  url: https://www.linkedin.com/company/cognee-ai
- type: Blog
  url: https://www.cognee.ai/blog
- type: Pricing
  url: https://www.cognee.ai/pricing
- type: CostCalculator
  url: https://www.cognee.ai/cost-calculator
- type: X
  url: https://x.com/cognee_
- type: Discord
  url: https://discord.gg/m63hxKsp4p
- type: Plans
  url: plans/cognee-plans-pricing.yml
- type: RateLimits
  url: rate-limits/cognee-rate-limits.yml
- type: FinOps
  url: finops/cognee-finops.yml
- type: Vocabulary
  url: vocabulary/cognee-vocabulary.yml
- type: JSONLDContext
  url: json-ld/cognee-context.jsonld
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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