Mem

Mem is an AI-native note-taking and knowledge workspace that captures notes, meetings, and ideas and keeps them instantly searchable and discoverable. It pairs a Workspace (notes, collections, projects, calendar, meeting transcription) with an Agent that tracks priorities and surfaces timely reminders. Mem exposes a REST API (the Mem Public Client API at https://api.mem.ai) for creating, reading, searching, and organizing notes and collections, plus semantic search, attachments, audio recordings, calendar, sessions, and tasks. It also ships an official hosted Model Context Protocol (MCP) server so AI tools like Claude, ChatGPT, and CLI agents can work with a user's Mem knowledge natively over OAuth. Mem is backed by a16z.

Mem publishes 5 APIs on the APIs.io network, including CoreApi__service-info API, external API, external-v0 API, and 2 more. Tagged areas include Company, Notes, Knowledge Management, Productivity, and Artificial Intelligence.

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

🌐 Visit website 📡 Source on GitHub
49.6/100 developing ▬ flat Agent 85/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
5 APIs 1 MCP Servers
CompanyNotesKnowledge ManagementProductivityArtificial IntelligenceNote TakingSearchMCPAgentsMeetings

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 49.6/100 · developing
Contract Quality 11.5 / 25
Developer Ergonomics 13.5 / 20
Commercial Clarity 10.5 / 20
Operational Transparency 4.1 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 85/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
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/mem: 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 5

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

Mem CoreApi__service-info API

The CoreApi__service-info API from Mem — 1 operation(s) for coreapi__service-info.

Mem external API

The external API from Mem — 53 operation(s) for external.

Mem external-v0 API

The external-v0 API from Mem — 4 operation(s) for external-v0.

Mem external-v1 API

The external-v1 API from Mem — 3 operation(s) for external-v1.

Mem external-v2 API

The external-v2 API from Mem — 44 operation(s) for external-v2.

MCP Servers 1

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

mem-mcp.yml

MCP SERVER

Rate Limits 1

Documented rate limits and quota policies.

Mem Rate Limits

0 limits

RATE LIMITS

Security Posture 2

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

Mem Authentication

apiKey/http/oauth2 · 3 schemes

SECURITY

Mem Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Mem Scopes

4 scopes · authorizationCode/clientCredentials

4 scopes

SCOPES

Agentic Access 1

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

Mem Agentic Access

64 operations · 38 acting

64 operations · 38 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp

Documentation 3

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference
 OpenAPI
OpenAPI

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 LLMsTxt
LLMsTxt
 WellKnown
WellKnown
 AgenticAccess
AgenticAccess
 AgentSkill
AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 Idempotency
Idempotency
 Lifecycle
Lifecycle
 ErrorCatalog
ErrorCatalog
 Conformance
Conformance
 DataModel
DataModel

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

Security
Security
 TrustCenter
TrustCenter
 Authentication
Authentication
 OAuthScopes
OAuthScopes
 DomainSecurity
DomainSecurity

Operate 4

Status, limits, changes, and where to get help

Support
Support
 Community
Community
 RateLimits
RateLimits
 ChangeLog
ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Blog
Blog

Other 1

Properties that don't map to a standard resource type

Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: mem
name: Mem
description: Mem is an AI-native note-taking and knowledge workspace that captures notes, meetings, and ideas and keeps them
  instantly searchable and discoverable. It pairs a Workspace (notes, collections, projects, calendar, meeting transcription)
  with an Agent that tracks priorities and surfaces timely reminders. Mem exposes a REST API (the Mem Public Client API at
  https://api.mem.ai) for creating, reading, searching, and organizing notes and collections, plus semantic search, attachments,
  audio recordings, calendar, sessions, and tasks. It also ships an official hosted Model Context Protocol (MCP) server so
  AI tools like Claude, ChatGPT, and CLI agents can work with a user's Mem knowledge natively over OAuth. Mem is backed by
  a16z.
url: https://raw.githubusercontent.com/api-evangelist/mem/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://storage.googleapis.com/mem-public-assets/sq-f.jpg
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Notes
- Knowledge Management
- Productivity
- Artificial Intelligence
- Note Taking
- Search
- MCP
- Agents
- Meetings
apis:
- aid: mem:mem-coreapi-service-info-api
  name: Mem CoreApi__service-info API
  description: The CoreApi__service-info API from Mem — 1 operation(s) for coreapi__service-info.
  humanURL: https://docs.mem.ai
  baseURL: https://api.mem.ai
  tags:
  - CoreApi__service-info
  properties:
  - type: OpenAPI
    url: openapi/mem-coreapi-service-info-api-openapi.yml
  - type: Documentation
    url: https://docs.mem.ai
  - type: APIReference
    url: https://docs.mem.ai/api-reference/overview/introduction
  - type: Authentication
    url: https://docs.mem.ai/api-reference/overview/authentication
  - type: RateLimits
    url: https://docs.mem.ai/api-reference/overview/rate-limits
  - type: ChangeLog
    url: https://docs.mem.ai/api-reference/overview/changelog
- aid: mem:mem-external-api
  name: Mem external API
  description: The external API from Mem — 53 operation(s) for external.
  humanURL: https://docs.mem.ai
  baseURL: https://api.mem.ai
  tags:
  - external
  properties:
  - type: OpenAPI
    url: openapi/mem-external-api-openapi.yml
  - type: Documentation
    url: https://docs.mem.ai
  - type: APIReference
    url: https://docs.mem.ai/api-reference/overview/introduction
  - type: Authentication
    url: https://docs.mem.ai/api-reference/overview/authentication
  - type: RateLimits
    url: https://docs.mem.ai/api-reference/overview/rate-limits
  - type: ChangeLog
    url: https://docs.mem.ai/api-reference/overview/changelog
- aid: mem:mem-external-v0-api
  name: Mem external-v0 API
  description: The external-v0 API from Mem — 4 operation(s) for external-v0.
  humanURL: https://docs.mem.ai
  baseURL: https://api.mem.ai
  tags:
  - external-v0
  properties:
  - type: OpenAPI
    url: openapi/mem-external-v0-api-openapi.yml
  - type: Documentation
    url: https://docs.mem.ai
  - type: APIReference
    url: https://docs.mem.ai/api-reference/overview/introduction
  - type: Authentication
    url: https://docs.mem.ai/api-reference/overview/authentication
  - type: RateLimits
    url: https://docs.mem.ai/api-reference/overview/rate-limits
  - type: ChangeLog
    url: https://docs.mem.ai/api-reference/overview/changelog
- aid: mem:mem-external-v1-api
  name: Mem external-v1 API
  description: The external-v1 API from Mem — 3 operation(s) for external-v1.
  humanURL: https://docs.mem.ai
  baseURL: https://api.mem.ai
  tags:
  - external-v1
  properties:
  - type: OpenAPI
    url: openapi/mem-external-v1-api-openapi.yml
  - type: Documentation
    url: https://docs.mem.ai
  - type: APIReference
    url: https://docs.mem.ai/api-reference/overview/introduction
  - type: Authentication
    url: https://docs.mem.ai/api-reference/overview/authentication
  - type: RateLimits
    url: https://docs.mem.ai/api-reference/overview/rate-limits
  - type: ChangeLog
    url: https://docs.mem.ai/api-reference/overview/changelog
- aid: mem:mem-external-v2-api
  name: Mem external-v2 API
  description: The external-v2 API from Mem — 44 operation(s) for external-v2.
  humanURL: https://docs.mem.ai
  baseURL: https://api.mem.ai
  tags:
  - external-v2
  properties:
  - type: OpenAPI
    url: openapi/mem-external-v2-api-openapi.yml
  - type: Documentation
    url: https://docs.mem.ai
  - type: APIReference
    url: https://docs.mem.ai/api-reference/overview/introduction
  - type: Authentication
    url: https://docs.mem.ai/api-reference/overview/authentication
  - type: RateLimits
    url: https://docs.mem.ai/api-reference/overview/rate-limits
  - type: ChangeLog
    url: https://docs.mem.ai/api-reference/overview/changelog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 23
  pass: local-v1
common:
- type: DeveloperPortal
  url: https://docs.mem.ai
- type: Documentation
  url: https://docs.mem.ai
- type: APIReference
  url: https://docs.mem.ai/api-reference/overview/introduction
- type: GettingStarted
  url: https://docs.mem.ai/guides/get-started/quickstart
- type: Blog
  url: https://get.mem.ai/blog
- type: Support
  url: https://help.mem.ai
- type: Community
  url: https://get.mem.ai/slack
- type: GitHubOrganization
  url: https://github.com/mem-ai
- type: Pricing
  url: https://mem.ai/pricing
- type: SignUp
  url: https://mem.ai/login
- type: TermsOfService
  url: https://mem.ai/pages/terms-of-service
- type: PrivacyPolicy
  url: https://mem.ai/pages/privacy
- type: Security
  url: https://mem.ai/pages/security
- type: TrustCenter
  url: https://trust.mem.ai/
- type: OpenAPI
  url: openapi/mem-openapi-original.json
- type: MCPServer
  url: mcp/mem-mcp.yml
- type: LLMsTxt
  url: llms/mem-llms.txt
- type: WellKnown
  url: well-known/mem-well-known.yml
- type: Authentication
  url: authentication/mem-authentication.yml
- type: OAuthScopes
  url: scopes/mem-scopes.yml
- type: AgenticAccess
  url: agentic-access/mem-agentic-access.yml
- type: DomainSecurity
  url: security/mem-domain-security.yml
- type: Conventions
  url: conventions/mem-conventions.yml
- type: Idempotency
  url: conventions/mem-conventions.yml
- type: RateLimits
  url: rate-limits/mem-rate-limits.yml
- type: ChangeLog
  url: changelog/mem-changelog.yml
- type: Lifecycle
  url: lifecycle/mem-lifecycle.yml
- type: ErrorCatalog
  url: errors/mem-problem-types.yml
- type: Conformance
  url: conformance/mem-conformance.yml
- type: DataModel
  url: data-model/mem-data-model.yml
- type: Overlay
  url: overlays/mem-openapi-overlay.yaml
- type: AgentSkill
  url: skills/_index.yml