Parsed Events Quickstart

New to Parsed Events? Read the Parsed Streams mental model first — Parsed Events returns the same decoded instructions over REST.

Quickstart

Get Access

Parsed Events is available on all plans at 10 credits per request. Get your API key from the Helius Dashboard and send requests to https://mainnet.helius-rpc.com.Authenticate with your project’s API key, passed as the api-key query parameter.

Parse a Transaction

Pass signatures in the transactions body field of POST /v1/parsed-events/transactions:

JavaScript
cURL

const parseTransactions = async () => {
  const url = "https://mainnet.helius-rpc.com/v1/parsed-events/transactions?api-key=YOUR_API_KEY";

  const response = await fetch(url, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
    },
    body: JSON.stringify({
      transactions: [
        "5xSKzM8bvpudE521jikHqASzMr23Ms4X4ieY3K8oFPFrJWCSSgYocJmHznrR8b12voDxKDH8ykdCLXSRrx6duVLH",
      ],
      rawTransaction: "none",
    }),
  });

  const data = await response.json();
  console.log(data);
};

parseTransactions();

curl -X POST "https://mainnet.helius-rpc.com/v1/parsed-events/transactions?api-key=YOUR_API_KEY" \
  -H "content-type: application/json" \
  -d '{
    "transactions": [
      "5xSKzM8bvpudE521jikHqASzMr23Ms4X4ieY3K8oFPFrJWCSSgYocJmHznrR8b12voDxKDH8ykdCLXSRrx6duVLH"
    ],
    "rawTransaction": "none"
  }'

Read the Result

The response contains one result per requested signature, in input order. Each result includes signature, parserStatus, and either parsed or parserError:

[
  {
    "signature": "5xSKzM8bvpudE521jikHqASzMr23Ms4X4ieY3K8oFPFrJWCSSgYocJmHznrR8b12voDxKDH8ykdCLXSRrx6duVLH",
    "parserStatus": "OK",
    "parsed": {
      "slot": 433950192,
      "blockTime": 1784487060,
      "fee": 2005000,
      "feePayer": "GV6UUmNxz2RpKxmNAPadYKb7uQpszwqQAu3qLJxVdC52",
      "transactionStatus": "OK",
      "nativeTransfers": [
        {
          "fromUserAccount": "GV6UUmNxz2RpKxmNAPadYKb7uQpszwqQAu3qLJxVdC52",
          "toUserAccount": "teBPkZtsnaKDpGHTy1KUZeh1PbVtbrKXhzruYpRiUUs",
          "amount": 1500000000000
        }
      ],
      "tokenTransfers": [
        {
          "fromUserAccount": "GV6UUmNxz2RpKxmNAPadYKb7uQpszwqQAu3qLJxVdC52",
          "toUserAccount": "7iWnBRRhBCiNXXPhqiGzvvBkKrvFSWqqmxRyu9VyYBxE",
          "fromTokenAccount": "teBPkZtsnaKDpGHTy1KUZeh1PbVtbrKXhzruYpRiUUs",
          "toTokenAccount": "2oL6my4QDDCfpgJZX1bZV1NgbmuNptKdgcE8wJm6efgk",
          "rawTokenAmount": 1498500000000,
          "decimals": 9,
          "tokenStandard": "Fungible",
          "mint": "So11111111111111111111111111111111111111112"
        }
      ],
      "summary": {
        "type": "swap",
        "description": "GV6UUmNxz2RpKxmNAPadYKb7uQpszwqQAu3qLJxVdC52 swapped 1500 SOL for 64672839.26195 pumpCmXqMfrsAkQ5r49WcJnRayYRqmXz6ae8H7H9Dfn via Jupiter",
        "parsedData": {
          "type": "swap",
          "protocol": "jupiter",
          "kind": "swap",
          "in_amount": "1500000000000",
          "actual_out_amount": "64672839261950",
          "input_mint": "So11111111111111111111111111111111111111112",
          "output_mint": "pumpCmXqMfrsAkQ5r49WcJnRayYRqmXz6ae8H7H9Dfn",
          "inner_swaps": [
            {
              "amm_program_id": "",
              "amm_program_name": null,
              "input_amount": "470229300000",
              "output_amount": "35579021038",
              "input_mint": "So11111111111111111111111111111111111111112",
              "output_mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
            },
            {
              "amm_program_id": "",
              "amm_program_name": null,
              "input_amount": "1028270700000",
              "output_amount": "77798063361",
              "input_mint": "So11111111111111111111111111111111111111112",
              "output_mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
            },
            {
              "amm_program_id": "",
              "amm_program_name": null,
              "input_amount": "14625643887",
              "output_amount": "8348494812168",
              "input_mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
              "output_mint": "pumpCmXqMfrsAkQ5r49WcJnRayYRqmXz6ae8H7H9Dfn"
            },
            {
              "amm_program_id": "",
              "amm_program_name": null,
              "input_amount": "35566391375",
              "output_amount": "20283004384731",
              "input_mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
              "output_mint": "pumpCmXqMfrsAkQ5r49WcJnRayYRqmXz6ae8H7H9Dfn"
            },
            {
              "amm_program_id": "",
              "amm_program_name": null,
              "input_amount": "63185049137",
              "output_amount": "36041340065051",
              "input_mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
              "output_mint": "pumpCmXqMfrsAkQ5r49WcJnRayYRqmXz6ae8H7H9Dfn"
            }
          ]
        }
      },
      "instructions": [
        {
          "instructionIndex": 5,
          "innerInstructionIndex": 2,
          "stackHeight": 3,
          "programId": "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA",
          "rawAccounts": [
            "2oL6my4QDDCfpgJZX1bZV1NgbmuNptKdgcE8wJm6efgk",
            "ATRsNGv2nDw7hSMfkUTBoVUDsFDwN7po7KbecyiGWNB4",
            "7iWnBRRhBCiNXXPhqiGzvvBkKrvFSWqqmxRyu9VyYBxE"
          ],
          "rawData": "3JvpRSxKFyKV",
          "summary": {
            "type": "transfer",
            "description": "7iWnBRRhBCiNXXPhqiGzvvBkKrvFSWqqmxRyu9VyYBxE transferred 470.2293 SOL from 7iWnBRRhBCiNXXPhqiGzvvBkKrvFSWqqmxRyu9VyYBxE to 8FnX3xo2yYw3EUE6w3nQA4GfXGS9wpK6oj3veJpbFzLo",
            "parsedData": null
          },
          "programName": "token",
          "instructionName": "transfer",
          "decoded": {
            "args": {
              "amount": "470229300000"
            },
            "accounts": [
              {
                "name": "source_account",
                "pubkey": "2oL6my4QDDCfpgJZX1bZV1NgbmuNptKdgcE8wJm6efgk",
                "isSigner": false,
                "isWritable": true
              },
              {
                "name": "destination_account",
                "pubkey": "ATRsNGv2nDw7hSMfkUTBoVUDsFDwN7po7KbecyiGWNB4",
                "isSigner": false,
                "isWritable": true
              },
              {
                "name": "owner_or_delegate",
                "pubkey": "7iWnBRRhBCiNXXPhqiGzvvBkKrvFSWqqmxRyu9VyYBxE",
                "isSigner": true,
                "isWritable": false
              }
            ]
          }
        },
        {
          "instructionIndex": 5,
          "innerInstructionIndex": 1,
          "stackHeight": 2,
          "programId": "BiSoNHVpsVZW2F7rx2eQ59yQwKxzU5NvBcmKshCSUypi",
          "rawAccounts": [
            "7iWnBRRhBCiNXXPhqiGzvvBkKrvFSWqqmxRyu9VyYBxE",
            "8FnX3xo2yYw3EUE6w3nQA4GfXGS9wpK6oj3veJpbFzLo",
            "ATRsNGv2nDw7hSMfkUTBoVUDsFDwN7po7KbecyiGWNB4",
            "2Y7HATmn9aJBcxCskE5V2U2epmjvkZmB51zTJBbhj4cU",
            "2oL6my4QDDCfpgJZX1bZV1NgbmuNptKdgcE8wJm6efgk",
            "EpdaePzdqRkMtdZJquVPUWgyoJ5YEEpYALki6dv9VBrt",
            "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA",
            "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA",
            "Sysvar1nstructions1111111111111111111111111",
            "J1to1yufRnoWn81KYg1XkTWzmKjnYSnmE2VY8DGUJ9Qv"
          ],
          "rawData": "67t827t7UwAMHa6U18HnBBLj",
          "summary": null,
          "programName": "bison_fi",
          "instructionName": null,
          "decoded": null
        }
      ]
    }
  }
]

The example is trimmed to two instructions: a decoded token transfer inside the route, and an AMM instruction whose program the catalog knows but cannot decode, which leaves instructionName as null while rawData and rawAccounts remain available. See Parsed Response for every field and a full example response.

Fetch Address History

POST /v1/parsed-events/transaction-history returns the same parsed results as above, for every transaction that touched an address, newest first by default:

JavaScript
cURL

const fetchTransactionHistory = async () => {
  const url = "https://mainnet.helius-rpc.com/v1/parsed-events/transaction-history?api-key=YOUR_API_KEY";

  const response = await fetch(url, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
    },
    body: JSON.stringify({
      address: "GV6UUmNxz2RpKxmNAPadYKb7uQpszwqQAu3qLJxVdC52",
      limit: 100,
      sortOrder: "desc",
      commitment: "confirmed",
    }),
  });

  const page = await response.json();
  console.log(page.data);
  console.log(page.paginationToken);
};

fetchTransactionHistory();

curl -X POST "https://mainnet.helius-rpc.com/v1/parsed-events/transaction-history?api-key=YOUR_API_KEY" \
  -H "content-type: application/json" \
  -d '{
      "address": "GV6UUmNxz2RpKxmNAPadYKb7uQpszwqQAu3qLJxVdC52",
      "limit": 100,
      "sortOrder": "desc",
      "commitment": "confirmed"
    }'

Paginate

History responses wrap results in a page object. Pass paginationToken back in the next request to continue. If paginationToken is missing, the service reached the end of the available page range.

Guides

Fetch Pump.fun Mints

Page through every token a wallet has deployed on Pump.fun.

Migrate from Enhanced Transactions

Endpoint, parameter, and response mapping from the legacy API.

REST Reference

Both REST methods accept a JSON body via POST under /v1/parsed-events/ at https://mainnet.helius-rpc.com, authenticated with the api-key query parameter. Request bodies reject unknown fields, so typos fail loudly instead of being silently ignored.

Parse Transactions

POST /v1/parsed-events/transactions fetches full Solana transactions by signature, decodes them with the same IDL-based instruction decoder that powers Parsed Streams, and returns one TransactionResult per requested signature. The response order matches the input order, including duplicate signatures. Missing transactions and per-item parser failures are returned as item-level parserStatus: "ERROR" results:

[
  {
    "signature": "5xSKzM8bvpudE521jikHqASzMr23Ms4X4ieY3K8oFPFrJWCSSgYocJmHznrR8b12voDxKDH8ykdCLXSRrx6duVLH",
    "parserStatus": "ERROR",
    "parserError": {
      "code": "transaction_not_found",
      "message": "transaction was not found"
    }
  }
]

Request body

string[]

required

Transaction signatures to parse. The maximum batch size is 100.

string

default:"confirmed"

Commitment level used when fetching transactions.

confirmed
finalized

string

default:"none"

Encoding of the raw Solana transaction returned as rawTransaction on each result, in the getTransaction shape.

none
json
jsonParsed
base64

Notes

processed commitment is not supported.
rawTransaction is omitted unless you set the rawTransaction request field to json, jsonParsed, or base64. The older includeRawTransaction: true still works as an alias for json.
Transaction execution failures can still parse. In that case parsed.transactionStatus is ERROR, and the transaction error is exposed on parsed.error when available.
Request-level validation errors return an error response instead of item-level results.

Parsed Transaction History

POST /v1/parsed-events/transaction-history returns parsed transaction history for an address. It supports pagination, signature bounds, slot bounds, block-time bounds, sort order, and optional raw transactions. Unlike the legacy Enhanced Transactions address endpoint, request parameters are sent in a JSON body rather than query string parameters.

Request body

string

required

Address whose transaction history should be fetched.

number

default:"100"

Number of transactions to return. Must be between 1 and 100.

string

Return transactions before this signature.

string

Return transactions after this signature.

string

Cursor returned by the previous response.

string

default:"desc"

Sort order for returned transactions.

asc
desc

string

default:"confirmed"

Commitment level used for the history fetch.

confirmed
finalized

string

default:"succeeded"

Execution result to include.

succeeded
failed
any

string

default:"none"

Whether to include transactions that reference only a token account owned by address, not address itself. Many incoming token transfers touch only the recipient’s token account.

none
balanceChanged
all

string

default:"none"

Encoding of the raw Solana transaction returned as rawTransaction on each result, in the getTransaction shape.

none
json
jsonParsed
base64

object

Slot comparison bounds. Each bound is optional: gt, gte, lt, lte.

object

Block-time comparison bounds in Unix seconds. Each bound is optional: gt, gte, lt, lte.

Pagination

Responses have this shape. Each data item uses the same TransactionResult format returned by Parse Transactions:

{
  "data": [
    {
      "signature": "5xSKzM8bvpudE521jikHqASzMr23Ms4X4ieY3K8oFPFrJWCSSgYocJmHznrR8b12voDxKDH8ykdCLXSRrx6duVLH",
      "parserStatus": "OK",
      "parsed": {
        "slot": 433950192,
        "blockTime": 1784487060,
        "fee": 2005000,
        "feePayer": "GV6UUmNxz2RpKxmNAPadYKb7uQpszwqQAu3qLJxVdC52",
        "transactionStatus": "OK",
        "nativeTransfers": [],
        "tokenTransfers": [],
        "summary": {
          "type": "swap",
          "description": "GV6UUmNxz2RpKxmNAPadYKb7uQpszwqQAu3qLJxVdC52 swapped 1500 SOL for 64672839.26195 pumpCmXqMfrsAkQ5r49WcJnRayYRqmXz6ae8H7H9Dfn via Jupiter",
          "parsedData": {
            "type": "swap",
            "protocol": "jupiter",
            "kind": "swap",
            "in_amount": "1500000000000",
            "actual_out_amount": "64672839261950",
            "input_mint": "So11111111111111111111111111111111111111112",
            "output_mint": "pumpCmXqMfrsAkQ5r49WcJnRayYRqmXz6ae8H7H9Dfn",
            "inner_swaps": [
              {
                "amm_program_id": "",
                "amm_program_name": null,
                "input_amount": "470229300000",
                "output_amount": "35579021038",
                "input_mint": "So11111111111111111111111111111111111111112",
                "output_mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
              },
              {
                "amm_program_id": "",
                "amm_program_name": null,
                "input_amount": "1028270700000",
                "output_amount": "77798063361",
                "input_mint": "So11111111111111111111111111111111111111112",
                "output_mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
              },
              {
                "amm_program_id": "",
                "amm_program_name": null,
                "input_amount": "14625643887",
                "output_amount": "8348494812168",
                "input_mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
                "output_mint": "pumpCmXqMfrsAkQ5r49WcJnRayYRqmXz6ae8H7H9Dfn"
              },
              {
                "amm_program_id": "",
                "amm_program_name": null,
                "input_amount": "35566391375",
                "output_amount": "20283004384731",
                "input_mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
                "output_mint": "pumpCmXqMfrsAkQ5r49WcJnRayYRqmXz6ae8H7H9Dfn"
              },
              {
                "amm_program_id": "",
                "amm_program_name": null,
                "input_amount": "63185049137",
                "output_amount": "36041340065051",
                "input_mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
                "output_mint": "pumpCmXqMfrsAkQ5r49WcJnRayYRqmXz6ae8H7H9Dfn"
              }
            ]
          }
        },
        "instructions": []
      }
    }
  ],
  "paginationToken": "433950192:0"
}

Pass paginationToken back in the next request to continue. If paginationToken is missing, the service reached the end of the available page range.

Get Started

Data Streaming & Event Listening

Data APIs & RPCs

Trading

Sending Transactions

Wallet-as-a-Service

Privacy

Resources

Parsed Events Quickstart

Quickstart

Guides

Fetch Pump.fun Mints

Migrate from Enhanced Transactions

REST Reference

Parse Transactions

Request body

Notes

Parsed Transaction History

Request body