---
title: "POST /v1/blink/chain"
method: POST
path: "/v1/blink/chain"
tags: ["Blink"]
---

# POST /v1/blink/chain

`POST /v1/blink/chain`

Chain Blink

## Query parameters

- `apiUrl` string, uri, required — Blink API URL

## Request body

- union
  - NextActionPostRequest — Next Action Post Request
    - `signature` string
    - `state` string
    - `account` string, required
    - `data` object
  - MessageNextActionPostRequest — Message Next Action Post Request
    - `account` string, required
    - `signature` string, required
    - `state` string
    - `data` union, required
      - string
      - SignMessageData — Sign Message Data
        - `domain` string, required
        - `address` string, required
        - `statement` string, required
        - `nonce` string, required
        - `issuedAt` string, required
        - `chainId` string

## Response `200`

Successful response

- union
  - object
    - `type` 'transaction' | 'message' | 'post' | 'external-link'
    - `message` string
    - `links` object
      - `next` union, required — Next Action Link
        - object
          - `type` 'post', required
          - `href` string, required
        - object
          - `type` 'inline', required
          - `action` object, required
            - `type` 'action' | 'completed', required
            - `icon` string, required
            - `title` string, required
            - `description` string, required
            - `extendedDescription` string
            - `label` string, required
            - `disabled` boolean
            - `links` object
              - …
            - `error` ActionError — Error
              - …
            - `context` BlinkContext, required — Blink Context
              - …
            - `preview` BlinkPreview, required — Blink Preview
              - …
  - CompletedAction — Completed Action
    - `type` 'completed', required
    - `icon` string, required
    - `title` string, required
    - `description` string, required
    - `label` string, required
    - `disabled` boolean
    - `error` string
    - `message` string

## Other responses

- `502` — Failed to fetch data from Blink Provider

---

[API](https://skmtc.net/dial/apis/dialect-api.md) · [All operations](https://skmtc.net/dial/apis/dialect-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/dial/dialect-api/revisions/dffe3c5f473f/schema)