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OpenAPI Specification
openapi: 3.2.0
info:
title: Helius API Catalog Transfers 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.
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: Transfers
description: Token transfer activity
paths:
/v1/wallet/{wallet}/transfers:
get:
tags:
- Transfers
summary: Get token transfers
description: 'Retrieve all token transfer activity for a wallet including sender/recipient information.
Returns transfers in reverse chronological order (newest first).'
operationId: walletApi_getWalletTransfers
parameters:
- $ref: '#/components/parameters/WalletApi_WalletAddress'
- name: limit
in: query
description: Maximum number of transfers to return
schema:
type: integer
minimum: 1
maximum: 100
default: 50
- name: cursor
in: query
description: Pagination cursor from previous response
schema:
type: string
responses:
'200':
description: Transfer history retrieved successfully
content:
application/json:
schema:
$ref: '#/components/schemas/WalletApi_TransfersResponse'
'400':
$ref: '#/components/responses/WalletApi_BadRequest'
'401':
$ref: '#/components/responses/WalletApi_Unauthorized'
'429':
$ref: '#/components/responses/WalletApi_RateLimited'
'500':
$ref: '#/components/responses/WalletApi_InternalError'
servers:
- url: https://api.helius.xyz
description: Production server
components:
schemas:
WalletApi_TransfersResponse:
type: object
properties:
data:
type: array
items:
$ref: '#/components/schemas/WalletApi_Transfer'
pagination:
$ref: '#/components/schemas/WalletApi_Pagination'
required:
- data
- pagination
WalletApi_Pagination:
type: object
properties:
hasMore:
type: boolean
description: Whether more results are available
example: true
nextCursor:
type: string
nullable: true
description: Cursor to fetch the next page of results
example: 5wHu1qwD7Jsj3xqWjdSEJmYr3Q5f5RjXqjqQJ7jqEj7jqEj7jqEj7jqEj7jqEj7jqE
required:
- hasMore
WalletApi_Transfer:
type: object
properties:
signature:
type: string
description: Transaction signature
example: 5wHu1qwD7Jsj3xqWjdSEJmYr3Q5f5RjXqjqQJ7jqEj7jqEj7jqEj7jqEj7jqEj7jqE
timestamp:
type: integer
description: Unix timestamp in seconds
example: 1704067200
direction:
type: string
enum:
- in
- out
description: Transfer direction relative to the wallet
example: in
counterparty:
type: string
description: The other party in the transfer (sender if 'in', recipient if 'out')
example: HXsKP7wrBWaQ8T2Vtjry3Nj3oUgwYcqq9vrHDM12G664
mint:
type: string
description: Token mint address (So11111111111111111111111111111111111111112 for SOL)
example: So11111111111111111111111111111111111111112
symbol:
type: string
nullable: true
description: Token symbol if known
example: SOL
amount:
type: number
description: Transfer amount (human-readable, divided by decimals)
example: 1.5
amountRaw:
type: string
description: Raw transfer amount in smallest unit (lamports for SOL, raw token amount for SPL tokens)
example: '1500000000'
decimals:
type: integer
description: Token decimals
example: 9
required:
- signature
- timestamp
- direction
- counterparty
- mint
- amount
- amountRaw
- decimals
WalletApi_Error:
type: object
properties:
error:
type: string
description: Error message
example: Invalid wallet address
code:
type: integer
description: HTTP status code
example: 400
details:
type: string
description: Additional error details
example: '''invalid-address'' is not a valid Solana address'
required:
- error
- code
responses:
WalletApi_InternalError:
description: Transient server error. Retryable with exponential backoff.
content:
application/json:
schema:
$ref: '#/components/schemas/WalletApi_Error'
example:
error: INTERNAL_ERROR
code: 500
details: An unexpected error occurred. Please retry.
WalletApi_BadRequest:
description: Invalid request parameters
content:
application/json:
schema:
$ref: '#/components/schemas/WalletApi_Error'
example:
error: Invalid wallet address
code: 400
details: '''invalid-address'' is not a valid Solana address'
WalletApi_RateLimited:
description: Rate limit exceeded.
content:
application/json:
schema:
$ref: '#/components/schemas/WalletApi_Error'
example:
error: RATE_LIMIT_EXCEEDED
code: 429
details: Too many requests. Retry after 2 seconds.
WalletApi_Unauthorized:
description: Missing or invalid API key
content:
application/json:
schema:
$ref: '#/components/schemas/WalletApi_Error'
example:
error: API key required. Pass via ?api-key=xxx or X-Api-Key header
code: 401
parameters:
WalletApi_WalletAddress:
name: wallet
in: path
required: true
description: Solana wallet address (base58 encoded)
schema:
type: string
pattern: ^[1-9A-HJ-NP-Za-km-z]{32,44}$
example: GQUtvPx89ZNCwmvQqFmH59bJcU8fW8siETpaxod7Aydz
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