# MotherDuck

**Canonical:** https://apis.io/providers/motherduck/  
**Website:** https://motherduck.com/  
**APIs profiled:** 1

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.

## Kin Score — 18.0 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 18.0).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 19.0 |
| Commercial Clarity | 26.3 |
| Access Clarity | 26.3 |

## Agent readiness — 6.1 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | yes |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (1)

- **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,...

## Security (1)

- **Motherduck Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Motherduck Plans Pricing**

## Tags

Data Warehouse, Serverless, DuckDB, SQL, Analytics

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/motherduck/). Scores are computed from the provider's own public artifacts under a published rubric.