Helius

Helius Transactions API

Enhanced and human-readable transaction histories with decoded instruction data and detailed context.

GitHub OpenAPI

Operations 5

GET /v0/addresses/{address}/transactions Returns an enhanced transaction history for a given address #
GET /v0/addresses/{address}/raw-transactions Returns raw transaction history for a given address #
POST /v0/transactions Returns an array of enhanced, human-readable versions of the given transactions #
POST /v0/raw-transactions Returns an array of raw (directly from RPC) transactions #
POST /v1/raw-transactions Returns an array of raw transactions for the given accounts #

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/helius/refs/heads/main/openapi/helius-transactions-api-openapi.yml

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OpenAPI Specification

helius-transactions-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Helius API Catalog Transactions 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:


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# Full source: https://raw.githubusercontent.com/api-evangelist/helius/refs/heads/main/openapi/helius-transactions-api-openapi.yml