# Estuary Flow

**Canonical:** https://apis.io/providers/estuary-flow/  
**Website:** https://estuary.dev  
**APIs profiled:** 4

Estuary Flow is a real-time data movement and transformation platform combining streaming infrastructure, a runtime, and an open-source ecosystem of connectors. It supports change data capture (CDC), SaaS integration, database replication, streaming lakehouse, and real-time analytics pipelines. Users build pipelines as captures, collections, derivations, and materializations - manageable from the web dashboard, the flowctl CLI, and a REST/agent API.

## Kin Score — 33.7 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 33.7).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 42.1 |
| Developer Ergonomics | 33.3 |
| Commercial Clarity | 67.1 |
| Access Clarity | 67.1 |

## Agent readiness — 3.0 (human-only)

| 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 | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Free — onboarding: unknown, pricing: free, trial: no (confidence: medium).

## APIs (4)

- **Estuary Flow Agent API** — REST/JSON API backing the Estuary Flow web dashboard and flowctl CLI. Manages captures, collections, materializations, derivations, drafts, publications, tenants, and role grant...
- **Estuary Flow OpenMetrics API** — OpenMetrics-compatible endpoint that exposes per-task pipeline metrics for captures, materializations, and derivations. Designed to be scraped by Prometheus or other OpenMetrics...
- **flowctl CLI** — Command-line tool for authoring, drafting, testing, and publishing Flow catalogs (captures, collections, derivations, materializations). Wraps the Flow agent API and integrates ...
- **Estuary Flow Connectors** — Open-source library of source and destination connectors for SaaS apps, databases, message queues, warehouses, lakehouses, and file systems. Connectors run inside the Flow runti...

## Security (1)

- **Estuary Flow Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Estuary Flow Plans Pricing**

## Tags

Data, Streaming, Change Data Capture, CDC, ETL, ELT, Real-Time, Data Pipeline, Connectors, Lakehouse

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