Celestia

Celestia Node Blob API

JSON-RPC methods in the blob module of celestia-node. Submit blobs to one or more namespaces with blob.Submit, retrieve them by height with blob.Get and blob.GetAll, generate inclusion proofs with blob.GetProof, check inclusion with blob.Included, and subscribe to namespace blobs with blob.Subscribe. The canonical surface for rollups and applications publishing data to Celestia.

Documentation GitHub OpenAPI

Operations 1

POST / Invoke Blob JSON-RPC Method

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this

find_apisBrowse and filter every API in the catalog.
get_api_artifactsOne API's artifacts, grouped by type.
get_openapiThe primary OpenAPI for this API.
find_similar_apisAPIs that look like this one.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This API

curl "https://apis.io/api/v1/apis/celestia-blob-api"

All apis

curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

openapi: 3.2.0
info:
  title: Celestia Node Blob API
  version: 0.30.x
  description: 'JSON-RPC methods in the `blob` module of celestia-node. Used to submit, retrieve,

    and prove blobs of arbitrary data published to the Celestia data availability layer

    against one or more namespaces. Blobs are the canonical payload unit for rollups

    and other applications using Celestia for DA.

    '
  license:
    name: Apache-2.0
    url: https://www.apache.org/licenses/LICENSE-2.0
  contact:
    name: Celestia Labs
    url: https://celestia.org
servers:
- url: http://localhost:26658
  description: Default celestia-node JSON-RPC endpoint (light/bridge/full)
tags:
- name: Blob
  description: Submit, retrieve, and prove blobs against Celestia namespaces.
paths:
  /:
    post:
      tags:
      - Blob
      summary: Invoke Blob JSON-RPC Method
      description: 'Single JSON-RPC entrypoint exposing the `blob.*` namespace including

        `blob.Submit`, `blob.Get`, `blob.GetAll`, `blob.GetProof`, `blob.Included`,

        and `blob.Subscribe`. Authenticate with a bearer token generated via

        `celestia <node-type> auth <permissions>`.

        '
      security:
      - BearerAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/JsonRpcRequest'
            examples:
              submit:
                summary: Submit a blob
                value:
                  jsonrpc: '2.0'
                  id: 1
                  method: blob.Submit
                  params:
                  - - namespace: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAc29tZW5z
                      data: VGhpcyBpcyBhbiBleGFtcGxlIG9mIHNvbWUgYmxvYiBkYXRh
                      share_version: 0
                    - 0.002
              get:
                summary: Retrieve a blob
                value:
                  jsonrpc: '2.0'
                  id: 1
                  method: blob.Get
                  params:
                  - 1234567
                  - AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAc29tZW5z
                  - 0x...
      responses:
        '200':
          description: JSON-RPC response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/JsonRpcResponse'
components:
  schemas:
    JsonRpcResponse:
      type: object
      required:
      - jsonrpc
      - id
      properties:
        jsonrpc:
          type: string
        id:
          oneOf:
          - type: integer
          - type: string
          - type: 'null'
        result: {}
        error:
          type: object
          properties:
            code:
              type: integer
            message:
              type: string
    JsonRpcRequest:
      type: object
      required:
      - jsonrpc
      - method
      - id
      properties:
        jsonrpc:
          type: string
          enum:
          - '2.0'
        id:
          oneOf:
          - type: integer
          - type: string
        method:
          type: string
          enum:
          - blob.Submit
          - blob.Get
          - blob.GetAll
          - blob.GetProof
          - blob.Included
          - blob.Subscribe
        params:
          type: array
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer

Celestia Node Blob API

Operations 1

Documentation

Specifications

Schemas & Data

Other Resources