MotherDuck website screenshot

MotherDuck

MotherDuck is a serverless cloud data warehouse built on DuckDB. Connectivity is via DuckDB clients (Python, Node.js, Wasm, Go, JDBC) using access tokens or SSO; the service does not publicly document a separate REST management API.

MotherDuck publishes 1 API on the APIs.io network. Tagged areas include Data Warehouse, Serverless, DuckDB, SQL, and Analytics.

MotherDuck’s developer surface includes developer portal, pricing, engineering blog, and 9 more developer resources.

23.8/100 emerging ▬ flat Agent 8/100 agent aware Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessFreemium
1 APIs 56 Agent Skills
Data WarehouseServerlessDuckDBSQLAnalytics

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 23.8/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 2.2 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 6.9 / 10
Agent readiness — 8/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 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 5 / 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/motherduck: 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 1

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

MotherDuck DuckDB Connection

Clients connect to MotherDuck through DuckDB's native protocol using a connection string of the form `md:` plus an access token. Officially supported clients include DuckDB CLI,...

Agent Skills 24

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

motherduck-connect

AGENT SKILL

motherduck-connect

AGENT SKILL

motherduck-connect

AGENT SKILL

motherduck-ducklake

AGENT SKILL

motherduck-ducklake

AGENT SKILL

motherduck-ducklake

AGENT SKILL

Scroll for all 24

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Motherduck Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Security Posture 1

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

Motherduck Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 1

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: motherduck
url: https://raw.githubusercontent.com/api-evangelist/motherduck/refs/heads/main/apis.yml
name: MotherDuck
kind: company
description: MotherDuck is a serverless cloud data warehouse built on DuckDB. Connectivity is via DuckDB clients (Python,
  Node.js, Wasm, Go, JDBC) using access tokens or SSO; the service does not publicly document a separate REST management API.
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/motherduck.png
tags:
- Data Warehouse
- Serverless
- DuckDB
- SQL
- Analytics
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.19'
apis:
- aid: motherduck:motherduck-duckdb-protocol
  name: MotherDuck DuckDB Connection
  humanURL: https://motherduck.com/docs/key-tasks/authenticating-and-connecting-to-motherduck/
  baseURL: md:?token={access_token}
  tags:
  - DuckDB
  - SQL
  - Analytics
  description: Clients connect to MotherDuck through DuckDB's native protocol using a connection string of the form `md:`
    plus an access token. Officially supported clients include DuckDB CLI, Python, Node.js, JDBC, Wasm, and Go. Authentication
    uses access tokens or SSO (Business / Enterprise).
  properties:
  - type: Documentation
    url: https://motherduck.com/docs/
  - type: Authentication
    url: https://motherduck.com/docs/key-tasks/authenticating-and-connecting-to-motherduck/
common:
- type: DomainSecurity
  url: security/motherduck-domain-security.yml
- name: Agent Skills
  url: https://github.com/motherduckdb/agent-skills
  type: AgentSkills
- type: GitHubOrganization
  url: https://github.com/motherduckdb
- type: LinkedIn
  url: https://www.linkedin.com/company/motherduck
- type: Website
  url: https://motherduck.com/
- type: Portal
  url: https://motherduck.com/docs/
- type: Pricing
  url: https://motherduck.com/pricing/
- type: Plans
  url: plans/motherduck-plans-pricing.yml
- type: RateLimits
  url: rate-limits/motherduck-rate-limits.yml
- type: FinOps
  url: finops/motherduck-finops.yml
- type: Integrations
  url: https://motherduck.com/ecosystem/
- type: LlmsText
  url: https://motherduck.com/llms.txt
- url: https://motherduck.com/rss.xml
  type: Blog
integrations:
- name: Airbyte's
- name: AirFlow's
- name: Anthropic's
- name: Artie's
- name: Ascend's
- name: Astrato Analytics's
- name: Astronomer's
- name: Bruin's
- name: Bytewax's
- name: Census's
- name: CloudQuery's
- name: Cube's
- name: Dagster's
- name: Datagrip's
- name: DataLab's
- name: Datawisp's
- name: dbt Core's
- name: dlt's
- name: Dot's
- name: Estuary's
- name: Evidence's
- name: Explo's
- name: Fabi.ai's
- name: Faraday's
- name: Fivetran's
- name: GoodData's
- name: Google CoLab's
- name: Hevo's
- name: Hex's
- name: Holistics's
- name: Inecta ETL's
- name: Kestra's
- name: LangChain's
- name: Livedocs's
- name: LlamaIndex's
- name: Mage's
- name: Marimo's
- name: Meltano's
- name: Metabase's
- name: Microsoft Power BI's
- name: Monte Carlo's
- name: Ollama's
- name: Omni's
- name: OneSignal's
- name: Orchestra's
- name: Paradime's
- name: Polytomic's
- name: Preset's
- name: PuppyGraph's
- name: Querio's
- name: Rill Data's
- name: Sling Data's
- name: Soda's
- name: SQLMesh's
- name: Streamkap's
- name: Streamlit's
- name: Superset's
- name: Tableau's
- name: Unstructured's
- name: Zenlytic's
- name: Artefact's
- name: Astrodata's
- name: Codecentric's
- name: Corail Analytics's
- name: CorrDyn's
- name: Crescent's
- name: Endeavor Labs's
- name: Shearwater's
- name: Silver Creek Insights's
- name: Tasman's
- name: Xebia's
- name: SOC
- name: GDPR
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com