> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gomaestro.org/llms.txt
> Use this file to discover all available pages before exploring further.

> Get Bitcoin mempool information including size, bytes, usage, and fee statistics for transaction queue management.

# Mempool Info



## OpenAPI

````yaml bitcoin/node-rpc-api/openapi.json get /mempool/info
openapi: 3.1.0
info:
  description: >-
    This API offers direct, low-latency access to Bitcoin full nodes via API
    (JSON-RPC protocol), giving developers reliable mempool visibility,
    transaction relay capabilities, and chain data without the hassle of running
    their own infrastructure.


    #### Key Features:

    - **Full JSON-RPC Support:** Access core Bitcoin functionality through RPC
    calls like `getblock`, `getrawtransaction`, `sendrawtransaction`, etc.

    - **Blockchain Data Retrieval:** Developers can fetch detailed information
    about blocks, transactions, and addresses.

    - **Mempool Insight:** Query unconfirmed transactions for faster, more
    responsive, real-time data access.

    - **High-Availability**: Enterprise-grade infrastructure ensures uptime,
    sync accuracy and fast transaction relay.


    #### Key Benefits for Developers:

    - Skip the operational complexity and computational overhead of maintaining
    self-hosted Bitcoin nodes.

    - Query mempool and chain data to power wallets, explorers, and backends
    with minimal latency.

    - Broadcast and verify transactions with trusted relay endpoints.

    - Build production-ready Bitcoin apps without worrying about node health,
    bandwidth, or reorg handling.
  title: Bitcoin - Node RPC API
  version: 0.1.1
servers:
  - description: Bitcoin Mainnet
    url: https://xbt-mainnet.gomaestro-api.org/v0/rpc
  - description: Bitcoin Testnet
    url: https://xbt-testnet.gomaestro-api.org/v0/rpc
security:
  - api-key: []
externalDocs:
  description: ''
  url: ''
paths:
  /mempool/info:
    get:
      tags:
        - Mempool
      summary: Mempool Info
      description: >-
        Returns size, memory usage, fee thresholds, and Replace-By-Fee (RBF)
        state.

        Useful for gauging current congestion and planning fees accordingly.
      operationId: rpc_mempool_info
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/api_bitcoin.MempoolInfoResponseBody'
          description: OK
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/api_bitcoin.NodeRPCError'
          description: Node RPC error.
        '500':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/api_bitcoin.APIError'
          description: Error getting mempool info.
components:
  schemas:
    api_bitcoin.MempoolInfoResponseBody:
      properties:
        data:
          $ref: '#/components/schemas/api_bitcoin.MempoolInfoResult'
        last_updated:
          $ref: '#/components/schemas/api_bitcoin.LastUpdatedBlock'
      type: object
    api_bitcoin.NodeRPCError:
      properties:
        code:
          description: Error code returned from the API request
          example: 0
          type: integer
        node rpc error:
          description: Error returned from the API request
          example: node rpc error
          type: string
      type: object
    api_bitcoin.APIError:
      properties:
        error:
          description: Error returned from the API request
          example: Bad Request
          type: string
      type: object
    api_bitcoin.MempoolInfoResult:
      properties:
        bytes:
          description: Total memory usage for the mempool (in bytes)
          type: integer
        fullrbf:
          description: Whether full replace-by-fee (RBF) is enabled
          type: boolean
        incrementalrelayfee:
          description: The incremental relay fee setting (in BTC)
          type: number
        loaded:
          description: Whether the mempool is fully loaded
          type: boolean
        maxmempool:
          description: Maximum memory usage for the mempool (in bytes)
          type: integer
        mempoolminfee:
          description: The minimum fee rate (in BTC/kB) for mempool transactions
          type: number
        minrelaytxfee:
          description: The minimum fee rate (in BTC/kB) for relaying transactions
          type: number
        size:
          description: Number of transactions in the mempool
          type: integer
        total_fee:
          description: The total fees (in BTC) in the mempool
          type: number
        unbroadcastcount:
          description: Number of transactions that have not been broadcast
          type: integer
        usage:
          description: Total usage of the mempool (in bytes)
          type: integer
      type: object
    api_bitcoin.LastUpdatedBlock:
      properties:
        block_hash:
          type: string
        block_height:
          type: integer
      type: object
  securitySchemes:
    api-key:
      description: Project API Key
      in: header
      name: api-key
      type: apiKey

````