openapi: 3.1.0
info:
  title: Helius API Catalog Addresses API
  version: 1.0.0
  summary: Machine-readable discovery document for every Helius API surface on Solana.
  description: 'This document is a discovery catalog — not an operational spec. It exists so

    AI agents, codegen tools, and SDK generators can locate the canonical

    OpenAPI document for every Helius API in one request instead of crawling

    the docs site.


    Start with the `x-apis` array: each entry links a Helius API surface to its

    canonical OpenAPI spec (`specUrl`) and human-readable docs (`docsUrl`).

    Follow `externalDocs` for the full developer documentation site.


    ## A note on JSON-RPC APIs


    Several Helius APIs (Solana RPC, DAS, Sender, Mint, Priority Fee,

    ZK Compression) follow the JSON-RPC 2.0 convention where every method POSTs

    to `/` with a `method` field in the request body. For each such API the

    repository ships both per-method fragment YAMLs (used to render the

    Mintlify reference pages) and an auto-generated `_combined.yaml` that

    merges every method into a single OpenAPI document. In the combined

    documents, colliding paths are disambiguated with a URL-fragment suffix

    (e.g. `/#getAccountInfo`) and each operation carries an `x-actual-path`

    extension that records the real request path (`/`). The fragment syntax is

    schema-only — real calls still go to the `url` in `servers`.


    All `specUrl` values below point to raw GitHub files on the `main` branch

    of `helius-labs/docs`. They are stable URLs suitable for downstream tools

    to pin or fetch.

    '
  contact:
    name: Helius Support
    url: https://www.helius.dev/contact
    email: support@helius.dev
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0.html
servers:
- url: https://mainnet.helius-rpc.com
  description: Solana mainnet RPC endpoint (Solana RPC, DAS, Priority Fee, ZK Compression)
- url: https://devnet.helius-rpc.com
  description: Solana devnet RPC endpoint
- url: https://sender.helius-rpc.com
  description: Helius Sender — global transaction submission
- url: https://api.helius.xyz
  description: Helius REST APIs (Wallet API, Enhanced API, Webhooks)
- url: https://admin-api.helius.xyz
  description: Helius Admin API — project usage and billing
- url: https://api-mainnet.helius-rpc.com
  description: Mainnet RPC endpoint
- url: https://api-devnet.helius-rpc.com
  description: Devnet RPC endpoint
- url: http://slc-sender.helius-rpc.com
  description: Salt Lake City
- url: http://ewr-sender.helius-rpc.com
  description: Newark
- url: http://lon-sender.helius-rpc.com
  description: London
- url: http://fra-sender.helius-rpc.com
  description: Frankfurt
- url: http://ams-sender.helius-rpc.com
  description: Amsterdam
- url: http://sg-sender.helius-rpc.com
  description: Singapore
- url: http://tyo-sender.helius-rpc.com
  description: Tokyo
tags:
- name: Addresses
  description: Enhanced on-chain identity data with complete wallet activity and ownership information.
paths:
  /v0/addresses/{address}/names:
    get:
      tags:
      - Addresses
      summary: Returns the Solana Naming Service name for a given address.
      operationId: enhancedApi_getAddressName
      parameters:
      - $ref: '#/components/parameters/apiKeyParam'
      - $ref: '#/components/parameters/EnhancedApi_addressParam'
      responses:
        '200':
          description: Returns the Solana Naming Service name if exists. Otherwise returns null.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EnhancedApi_NamesResponse'
        '400':
          $ref: '#/components/responses/EnhancedApi_400-BadRequest'
        '401':
          $ref: '#/components/responses/EnhancedApi_401-Unauthorized'
        '403':
          $ref: '#/components/responses/EnhancedApi_403-Forbidden'
        '404':
          $ref: '#/components/responses/EnhancedApi_404-NotFound'
        '429':
          $ref: '#/components/responses/EnhancedApi_429-TooManyRequests'
        '500':
          $ref: '#/components/responses/EnhancedApi_500-InternalServerError'
        '503':
          $ref: '#/components/responses/EnhancedApi_503-ServiceUnavailable'
        '504':
          $ref: '#/components/responses/EnhancedApi_504-GatewayTimeout'
      x-amazon-apigateway-integration:
        httpMethod: GET
        type: http_proxy
        uri: http://PLACEHOLDER_VIEW_LAYER_DNS_NAME/addresses/{address}/names
        connectionType: VPC_LINK
        connectionId: PLACEHOLDER_VPC_LINK_ID
        requestParameters:
          integration.request.path.address: method.request.path.address
      servers:
      - url: https://api-mainnet.helius-rpc.com
        description: Mainnet RPC endpoint
      - url: https://api-devnet.helius-rpc.com
        description: Devnet RPC endpoint
  /v0/addresses/{address}/balances:
    get:
      tags:
      - Addresses
      summary: Returns the native balance and token balances for a given address.
      operationId: enhancedApi_getBalances
      parameters:
      - $ref: '#/components/parameters/apiKeyParam'
      - $ref: '#/components/parameters/EnhancedApi_addressParam'
      responses:
        '200':
          description: Returns the native balance and the token balances for a given account.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EnhancedApi_BalancesResponse'
        '400':
          $ref: '#/components/responses/EnhancedApi_400-BadRequest'
        '401':
          $ref: '#/components/responses/EnhancedApi_401-Unauthorized'
        '403':
          $ref: '#/components/responses/EnhancedApi_403-Forbidden'
        '404':
          $ref: '#/components/responses/EnhancedApi_404-NotFound'
        '429':
          $ref: '#/components/responses/EnhancedApi_429-TooManyRequests'
        '500':
          $ref: '#/components/responses/EnhancedApi_500-InternalServerError'
        '503':
          $ref: '#/components/responses/EnhancedApi_503-ServiceUnavailable'
        '504':
          $ref: '#/components/responses/EnhancedApi_504-GatewayTimeout'
      x-amazon-apigateway-integration:
        httpMethod: GET
        type: http_proxy
        uri: http://PLACEHOLDER_VIEW_LAYER_DNS_NAME/addresses/{address}/balances
        connectionType: VPC_LINK
        connectionId: PLACEHOLDER_VPC_LINK_ID
        requestParameters:
          integration.request.path.address: method.request.path.address
      servers:
      - url: https://api-mainnet.helius-rpc.com
        description: Mainnet RPC endpoint
      - url: https://api-devnet.helius-rpc.com
        description: Devnet RPC endpoint
components:
  schemas:
    EnhancedApi_Balance:
      type: object
      properties:
        mint:
          type: string
        amount:
          type: number
        decimals:
          type: number
        tokenAccount:
          type: string
    EnhancedApi_ErrorResponse:
      type: object
      description: JSON-RPC error response format
      properties:
        jsonrpc:
          type: string
          example: '2.0'
          description: JSON-RPC version
        error:
          type: object
          properties:
            code:
              type: integer
              description: Error code
              example: -32602
            message:
              type: string
              description: Error message
              example: Invalid params
        id:
          type: string
          description: Request identifier
          example: '1'
      required:
      - jsonrpc
      - error
      - id
    EnhancedApi_BalancesResponse:
      type: object
      properties:
        tokens:
          type: array
          items:
            $ref: '#/components/schemas/EnhancedApi_Balance'
        nativeBalance:
          type: number
          description: In Lamports
    EnhancedApi_NamesResponse:
      type: object
      properties:
        domainNames:
          type: array
          items:
            type: string
  responses:
    EnhancedApi_503-ServiceUnavailable:
      description: The service is temporarily unavailable.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/EnhancedApi_ErrorResponse'
          example:
            jsonrpc: '2.0'
            error:
              code: -32002
              message: Service unavailable
            id: '1'
    EnhancedApi_401-Unauthorized:
      description: Unauthorized request.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/EnhancedApi_ErrorResponse'
          example:
            jsonrpc: '2.0'
            error:
              code: -32001
              message: Unauthorized
            id: '1'
    EnhancedApi_429-TooManyRequests:
      description: Exceeded rate limit.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/EnhancedApi_ErrorResponse'
          example:
            jsonrpc: '2.0'
            error:
              code: -32005
              message: Rate limit exceeded
            id: '1'
    EnhancedApi_500-InternalServerError:
      description: The server encountered an unexpected condition that prevented it from fulfilling the request.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/EnhancedApi_ErrorResponse'
          example:
            jsonrpc: '2.0'
            error:
              code: -32603
              message: Internal error
            id: '1'
    EnhancedApi_504-GatewayTimeout:
      description: The request timed out.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/EnhancedApi_ErrorResponse'
          example:
            jsonrpc: '2.0'
            error:
              code: -32003
              message: Gateway timeout
            id: '1'
    EnhancedApi_400-BadRequest:
      description: Invalid request.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/EnhancedApi_ErrorResponse'
          example:
            jsonrpc: '2.0'
            error:
              code: -32602
              message: Invalid params
            id: '1'
    EnhancedApi_404-NotFound:
      description: The specified resource was not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/EnhancedApi_ErrorResponse'
          example:
            jsonrpc: '2.0'
            error:
              code: -32601
              message: Method not found
            id: '1'
    EnhancedApi_403-Forbidden:
      description: Request was forbidden.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/EnhancedApi_ErrorResponse'
          example:
            jsonrpc: '2.0'
            error:
              code: -32003
              message: Forbidden
            id: '1'
  parameters:
    EnhancedApi_addressParam:
      name: address
      in: path
      description: The address to query for.
      required: true
      schema:
        type: string
        example: 86xCnPeV69n6t3DnyGvkKobf9FdN2H9oiVDdaMpo2MMY
        default: 86xCnPeV69n6t3DnyGvkKobf9FdN2H9oiVDdaMpo2MMY
    apiKeyParam:
      name: api-key
      in: query
      required: true
      description: Helius API key. Obtain from https://dashboard.helius.dev or via `helius signup --json`.
      schema:
        type: string
  securitySchemes:
    ApiKeyQuery:
      type: apiKey
      in: query
      name: api-key
      description: Your Helius API key. You can get one for free in the [dashboard](https://dashboard.helius.dev/api-keys).
    ApiKeyHeader:
      type: apiKey
      in: header
      name: X-Api-Key
      description: API key passed in request header
externalDocs:
  description: Helius Documentation (canonical)
  url: https://www.helius.dev/docs
x-apis:
- id: rpc-http
  name: Solana RPC (HTTP)
  description: JSON-RPC 2.0 methods for Solana mainnet and devnet, plus Helius extensions such as `getTransactionsForAddress` with server-side filtering and token account helpers (`getTokenAccountsByOwnerV2`, `getProgramAccountsV2`).
  specUrl: https://www.helius.dev/openapi/rpc-http.json
  docsUrl: https://www.helius.dev/docs/rpc/overview
  tags:
  - rpc
  - json-rpc
  - solana
  - accounts
  - transactions
  status: stable
  x-specFragments: https://github.com/helius-labs/docs/tree/main/openapi/rpc-http
- id: das-api
  name: Digital Asset Standard (DAS) API
  description: Unified NFT and token queries for Solana — regular NFTs, compressed NFTs, and fungible tokens — indexed for fast lookups by owner, creator, authority, collection, or search.
  specUrl: https://www.helius.dev/openapi/das-api.json
  docsUrl: https://www.helius.dev/docs/das-api
  tags:
  - nft
  - tokens
  - compressed-nft
  - digital-assets
  - json-rpc
  status: stable
  x-specFragments: https://github.com/helius-labs/docs/tree/main/openapi/das-api
- id: sender-api
  name: Helius Sender
  description: Ultra-low-latency transaction submission with dual routing to validators and Jito infrastructure. Regional endpoints for Salt Lake City, Newark, London, Frankfurt, Amsterdam, Singapore, and Tokyo.
  specUrl: https://www.helius.dev/openapi/sender-api.json
  docsUrl: https://www.helius.dev/docs/sending-transactions/sender
  tags:
  - transactions
  - sender
  - low-latency
  - jito
  status: stable
  x-specFragments: https://github.com/helius-labs/docs/tree/main/openapi/sender-api
- id: wallet-api
  name: Wallet API
  description: High-performance REST API for Solana wallet data — identity, balances, transaction history, transfers, and funding lineage. Returns pre-indexed results suitable for wallet and portfolio UIs.
  specUrl: https://www.helius.dev/openapi/wallet-api.json
  docsUrl: https://www.helius.dev/docs/wallet-api/overview
  tags:
  - wallet
  - portfolio
  - history
  - rest
  status: beta
- id: priority-fee-api
  name: Priority Fee API
  description: Real-time priority fee recommendations across multiple priority levels, derived from recent network activity. Accepts either account keys or a serialized transaction.
  specUrl: https://www.helius.dev/openapi/priority-fee-api.json
  docsUrl: https://www.helius.dev/docs/priority-fee-api
  tags:
  - priority-fee
  - transactions
  - fees
  - json-rpc
  status: stable
  x-specFragments: https://github.com/helius-labs/docs/tree/main/openapi/priority-fee-api
- id: zk-compression
  name: ZK Compression Indexer
  description: Indexer API for Solana state compression — compressed accounts, compressed token balances, Merkle proofs, and validity proofs. Enables up to 1000x lower storage costs relative to regular accounts.
  specUrl: https://www.helius.dev/openapi/zk-compression.json
  docsUrl: https://www.helius.dev/docs/zk-compression/introduction
  tags:
  - zk-compression
  - state-compression
  - accounts
  - proofs
  - json-rpc
  status: stable
  x-specFragments: https://github.com/helius-labs/docs/tree/main/openapi/zk-compression
- id: admin-api
  name: Admin API
  description: Programmatic access to Helius project usage and billing data — credits consumed, credits remaining, prepaid balances, and subscription details for the current billing cycle.
  specUrl: https://www.helius.dev/openapi/admin-api.json
  docsUrl: https://www.helius.dev/docs/api-reference/admin
  tags:
  - admin
  - billing
  - usage
  - rest
  status: stable
  x-specFragments: https://github.com/helius-labs/docs/tree/main/openapi/admin-api
- id: enhanced-api
  name: Enhanced API
  description: Decoded, human-readable transaction history, NFT events, and address activity on Solana. Returns typed, parsed data instead of raw instruction bytes.
  specUrl: https://www.helius.dev/openapi/enhanced-api.json
  docsUrl: https://www.helius.dev/docs/enhanced-transactions/overview
  tags:
  - enhanced
  - parsed-transactions
  - nft-events
  - history
  - rest
  status: stable
- id: webhooks
  name: Helius Webhooks
  description: Real-time HTTP notifications for Solana on-chain events — configure account, transaction, or NFT event subscriptions and receive parsed payloads via HTTPS POST.
  specUrl: https://www.helius.dev/openapi/webhooks.json
  docsUrl: https://www.helius.dev/docs/webhooks
  tags:
  - webhooks
  - events
  - notifications
  - rest
  status: stable