specification: API Commons Plans
specificationVersion: '0.1'
schema: https://raw.githubusercontent.com/api-evangelist/interface-research/main/schema/api-commons.yml#/$defs/Plans
provider: Sequin
providerId: sequin-io
created: '2026-07-01'
modified: '2026-07-01'
reconciled: false
tags:
- Change Data Capture
- CDC
- Postgres
- Streaming
- Open Source
- Plans
description: >-
  Sequin has two consumption models. The core Sequin CDC engine is open source
  (MIT) and free to self-host with no throughput caps beyond your own
  infrastructure. Sequin Cloud is the managed offering: a free-forever tier for
  getting started, a usage/throughput-based paid tier, and a custom/enterprise
  tier for high-volume or self-managed-with-support deployments. Cloud usage is
  metered primarily on data throughput (change records / operations streamed and
  data volume). Exact Cloud rates are not reconciled here.
notes: >-
  The Management API itself has no separate fee - it configures the same
  resources you can declare in sequin.yaml. Verify current Cloud tiers and rates
  on the Sequin pricing page during reconciliation.
sources:
- https://sequinstream.com/
- https://sequinstream.com/docs
- https://github.com/sequinstream/sequin
plans:
- id: sequin-open-source
  name: Open Source (Self-Hosted)
  type: free
  description: >-
    The full Sequin CDC engine, MIT-licensed and self-hostable via Docker.
    Includes all sink destinations, backfills, transforms, the sequin.yaml
    declarative config, and the Management API. Throughput is bounded only by
    your own hardware (Sequin sustains ~50k operations/sec, ~40 MB/s in
    published benchmarks).
  entries:
  - label: Self-Hosted Throughput
    name: self_hosted_throughput
    type: usage
    metric: records
    limit: -1
    timeFrame: month
    geo: global
    unit: 1
    price: free (self-hosted; you provide infrastructure)
    userMultiplied: false
  elements:
  - name: All Sink Destinations
  - name: Backfills
  - name: Transforms and Filters
  - name: Management API
  - name: sequin.yaml Config
- id: sequin-cloud-free
  name: Sequin Cloud - Free
  type: free
  description: >-
    Free-forever managed tier for evaluation and small workloads, with a
    bounded monthly change-record allowance.
  entries:
  - label: Included Change Records
    name: cloud_free_records
    type: usage
    metric: records
    limit: -1
    timeFrame: month
    geo: global
    unit: 1
    price: $0 up to the free-tier allowance
    userMultiplied: false
  elements:
  - name: Managed Hosting
  - name: All Sink Destinations
- id: sequin-cloud-usage
  name: Sequin Cloud - Usage
  type: usage
  description: >-
    Managed tier billed on throughput - change records / operations streamed
    and associated data volume - above the free allowance.
  entries:
  - label: Change Records Streamed
    name: cloud_records
    type: usage
    metric: records
    limit: -1
    timeFrame: month
    geo: global
    unit: 1000000
    price: usage-based per million records (see pricing page)
    userMultiplied: false
  - label: Data Volume
    name: cloud_data_volume
    type: usage
    metric: bytes
    limit: -1
    timeFrame: month
    geo: global
    unit: 1073741824
    price: usage-based per GB streamed (see pricing page)
    userMultiplied: false
  elements:
  - name: Managed Hosting
  - name: Higher Throughput
  - name: Support
- id: sequin-enterprise
  name: Enterprise / Custom
  type: enterprise
  description: >-
    Custom plan for high-volume Cloud usage, self-managed deployments with
    vendor support, security reviews, SLAs, and negotiated terms. Contact
    Sequin.
  entries:
  - label: Enterprise Agreement
    name: enterprise
    type: flat
    metric: contract
    limit: -1
    timeFrame: year
    geo: global
    unit: 1
    price: contact sales
    userMultiplied: false
  elements:
  - name: Custom Volume Pricing
  - name: SLAs and Support
  - name: Self-Managed with Support
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com