Covalent Cross-Chain API

openapi: 3.1.0
info:
  title: GoldRush Foundational ABI Cross-Chain API
  description: 'Structured historical blockchain data across 100+ chains via REST. Resource families include Balances (native, ERC20, ERC721, ERC1155, historical portfolios, token holders), Transactions (v3 paginated, time-bucketed, by-block), NFTs, Base service (blocks, logs, gas prices, address resolution), Cross-Chain Activity, Pricing, and Security (token approvals).

    '
  version: v1
  contact:
    name: GoldRush Support
    url: https://goldrush.dev/support/
  license:
    name: Covalent Terms of Service
    url: https://www.covalenthq.com/terms-of-service/
servers:
- url: https://api.covalenthq.com
  description: GoldRush production server
security:
- BearerAuth: []
tags:
- name: Cross-Chain
  description: Discover an address's activity across all supported chains.
paths:
  /v1/address/{walletAddress}/activity/:
    get:
      summary: Get Activity Across All Chains For Address
      operationId: getActivityAcrossAllChainsForAddress
      tags:
      - Cross-Chain
      parameters:
      - $ref: '#/components/parameters/WalletAddress'
      responses:
        '200':
          description: OK
  /v1/allchains/address/{walletAddress}/balances/:
    get:
      summary: Get Multichain Balances
      operationId: getMultichainBalances
      tags:
      - Cross-Chain
      parameters:
      - $ref: '#/components/parameters/WalletAddress'
      responses:
        '200':
          description: OK
  /v1/allchains/transactions/:
    get:
      summary: Get Multichain Multiaddress Transactions
      operationId: getMultichainMultiaddressTransactions
      tags:
      - Cross-Chain
      responses:
        '200':
          description: OK
components:
  parameters:
    WalletAddress:
      name: walletAddress
      in: path
      required: true
      description: Wallet address. EVM 0x-prefixed; ENS / Lens / Unstoppable names also accepted on Base service.
      schema:
        type: string
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: 'GoldRush API key, sent as `Authorization: Bearer <key>`.'