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OpenAPI Specification

openapi: 3.2.0
info:
  title: Substrate API Sidecar accounts Ahm API
  description: '> ⚠️ **Deprecation Notice** — `substrate-api-sidecar` is deprecated in favor of

    > [`polkadot-rest-api`](https://github.com/paritytech/polkadot-rest-api), a ground-up Rust rewrite

    > built on [`subxt`](https://github.com/paritytech/subxt) with 1:1 API compatibility (endpoints

    > served under `/v1/`, e.g. `/v1/blocks/head`), stable memory under sustained load, significantly

    > lower latency and higher throughput, and native SCALE decoding via `parity-scale-codec`.

    >

    > **Migrate today:** Docker `paritytech/polkadot-rest-api:v0.1.0` ·

    > [crate](https://crates.io/crates/polkadot-rest-api) ·

    > [migration guide](https://github.com/paritytech/polkadot-rest-api/blob/main/docs/guides/MIGRATION.md) ·

    > [docs](https://paritytech.github.io/polkadot-rest-api/) ·

    > [issues](https://github.com/paritytech/polkadot-rest-api/issues)


    Substrate API Sidecar is a REST service that makes it easy to interact with blockchain nodes

    built using Substrate''s FRAME framework.

    '
  contact:
    url: https://github.com/paritytech/substrate-api-sidecar
  license:
    name: GPL-3.0-or-later
    url: https://github.com/paritytech/substrate-api-sidecar/blob/master/LICENSE
  version: 20.14.1
servers:
- url: https://polkadot-public-sidecar.parity-chains.parity.io/
  description: Polkadot Parity public sidecar
- url: https://kusama-public-sidecar.parity-chains.parity.io/
  description: Kusama Parity public sidecar
- url: https://polkadot-asset-hub-public-sidecar.parity-chains.parity.io/
  description: Polkadot Asset Hub Parity public sidecar
- url: https://kusama-asset-hub-public-sidecar.parity-chains.parity.io/
  description: Kusama Asset Hub Parity public sidecar
- url: http://localhost:8080
  description: Localhost
tags:
- name: ahm
  description: Asset Hub Migration information
paths:
  /ahm-info:
    get:
      tags:
      - ahm
      summary: Get Asset Hub Migration information.
      description: Returns information about Asset Hub Migration (AHM) including migration start and end blocks for both relay chain and Asset Hub. The endpoint automatically detects whether you're connected to a relay chain or Asset Hub and provides relevant migration data. Returns static migration boundaries for known networks or queries on-chain migration pallets for dynamic information.
      operationId: getAhmInfo
      responses:
        '200':
          description: Successfully retrieved Asset Hub Migration information
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AhmInfo'
        '400':
          description: Invalid chain specName or missing migration pallets
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    AhmInfo:
      type: object
      description: Asset Hub Migration information including migration boundaries for both relay chain and Asset Hub.
      properties:
        relay:
          type: object
          description: Relay chain migration information
          properties:
            startBlock:
              type:
              - integer
              - 'null'
              description: Block number when relay chain migration started, or null if not available
              format: unsignedInteger
            endBlock:
              type:
              - integer
              - 'null'
              description: Block number when relay chain migration ended, or null if not available
              format: unsignedInteger
        assetHub:
          type: object
          description: Asset Hub migration information
          properties:
            startBlock:
              type:
              - integer
              - 'null'
              description: Block number when Asset Hub migration started, or null if not available
              format: unsignedInteger
            endBlock:
              type:
              - integer
              - 'null'
              description: Block number when Asset Hub migration ended, or null if not available
              format: unsignedInteger
      example:
        relay:
          startBlock: 26041702
          endBlock: 26071771
        assetHub:
          startBlock: 11716733
          endBlock: 11736597
    Error:
      type: object
      properties:
        code:
          type: number
        message:
          type: string
        stack:
          type: string
        level:
          type: string