Transactions

The RPC API exposes several methods for broadcasting signed transactions and tracking their execution. All transaction methods accept a base64-encoded signed_tx_base64 payload. Status methods accept either the same payload or a tx_hash + sender_account_id pair.

Quick Reference

Method	Purpose
`send_tx`	Broadcast a signed transaction and wait for the result
`tx`	Get the status of a previously broadcast transaction
`tx_status`	Like `tx`, but also returns receipt details (nearcore 2.14.0 or later)
`EXPERIMENTAL_receipt`	Fetch a single receipt by id
`broadcast_tx_async`	Broadcast and return immediately with the transaction hash
`broadcast_tx_commit`	Broadcast and wait until the transaction is included in a block

Prefer send_tx and tx for new integrations, and tx_status on nodes that run nearcore 2.14.0 or later. On older nodes, use EXPERIMENTAL_tx_status, which also works on 2.14.0 and later. The broadcast_tx_async and broadcast_tx_commit methods are kept for backward compatibility but offer less control over when the call returns.

The `wait_until` Field

send_tx, tx, and tx_status accept an optional wait_until field that controls how long the RPC waits before returning a response. Each value waits for a stricter execution milestone than the previous one — pick the lowest level that satisfies your use case so you don’t pay extra latency.

Value	Returns when…	Typical use
`NONE`	Right away. `send_tx` returns before the node validates or includes the transaction, and its response is `{"final_execution_status": "NONE"}` with no transaction hash. `tx` and `tx_status` return the current status without waiting.	Fire-and-forget broadcasts. Compute the transaction hash on the client, or use `broadcast_tx_async` if you need the RPC to return it.
`INCLUDED`	The transaction is included in a block (the block may not be finalized).	UI optimism: you want to confirm the tx hit the chain.
`EXECUTED_OPTIMISTIC` (default)	Included + all non-refund receipts have executed (blocks may still not be finalized).	Default for most apps — you can read the result.
`INCLUDED_FINAL`	Included in a finalized block.	You need finality but don’t care about receipts.
`EXECUTED`	Finalized + all non-refund receipts executed.	Strong correctness without waiting for refund receipts.
`FINAL`	Finalized + all receipts (including refunds) finalized.	Accounting and cross-chain settlement, where refund-tracking matters.

If the field is omitted, the RPC behaves as if EXECUTED_OPTIMISTIC was passed.

{
  "jsonrpc": "2.0",
  "id": "dontcare",
  "method": "send_tx",
  "params": {
    "signed_tx_base64": "DwAAAHNlbmRlci50ZXN0bmV0...",
    "wait_until": "FINAL"
  }
}

Higher wait_until levels can take several seconds. If your client has a short timeout, prefer INCLUDED or EXECUTED_OPTIMISTIC and poll tx for the stricter level.

Send Transaction

Broadcasts a signed transaction and waits for the requested execution milestone before returning.

method: send_tx
params: signed_tx_base64, optional wait_until

JSON
JavaScript
HTTPie

{
  "jsonrpc": "2.0",
  "id": "dontcare",
  "method": "send_tx",
  "params": {
    "signed_tx_base64": "DwAAAHNlbmRlci50ZXN0bmV0...",
    "wait_until": "EXECUTED_OPTIMISTIC"
  }
}

import { JsonRpcProvider } from "near-api-js";

const provider = new JsonRpcProvider({ url: "https://test.rpc.fastnear.com" });

const response = await provider.sendTransactionUntil(
  signedTransaction,
  'EXECUTED_OPTIMISTIC',
);

http POST https://rpc.testnet.near.org \
  jsonrpc=2.0 id=dontcare method=send_tx \
  params:='{"signed_tx_base64":"DwAAAHNlbmRlci50ZXN0bmV0...","wait_until":"EXECUTED_OPTIMISTIC"}'

Successful contract return values appear as base64-encoded status.SuccessValue. See the decoded result reference to read them.

Transaction Status

Returns the status of a previously submitted transaction.

method: tx
params: either signed_tx_base64, or tx_hash + sender_account_id. Optional wait_until.

JSON (by hash)
JavaScript

{
  "jsonrpc": "2.0",
  "id": "dontcare",
  "method": "tx",
  "params": {
    "tx_hash": "6zgh2u9DqHHiXzdy9ouTP7oGky2T4nugbhqsK7wQHnZS",
    "sender_account_id": "sender.testnet",
    "wait_until": "FINAL"
  }
}

import { JsonRpcProvider } from "near-api-js";

const provider = new JsonRpcProvider({ url: "https://test.rpc.fastnear.com" });

const response = await provider.txStatus(
  '6zgh2u9DqHHiXzdy9ouTP7oGky2T4nugbhqsK7wQHnZS',
  'sender.testnet',
  'FINAL',
);

Transaction Status with Receipts

tx_status returns the same payload as tx, plus a receipts list with the receipts that the transaction produced. It is useful when debugging cross-contract calls.

method: tx_status
params: same as tx

The receipts list can be incomplete:

Receipts that have not run yet when the node answers are not in the list. With the default wait_until (EXECUTED_OPTIMISTIC), refund receipts are often still missing. wait_until: "FINAL" waits until all receipts, including refunds, have run.
When the signer and the receiver are the same account, the list leaves out the first receipt. This is the receipt converted from the transaction.
A node that does not track the signer’s shard can return the result without the receipts list.

tx_status is available from nearcore 2.14.0. The 2.14.0 release candidates (versions that start with 2.14.0-rc) also have it. Earlier versions call this method EXPERIMENTAL_tx_status. Nodes that run them return a “Method not found” error for tx_status. EXPERIMENTAL_tx_status still works in 2.14.0, as a deprecated alias with identical request and response types. Use EXPERIMENTAL_tx_status until every node you call runs one of these versions or later. To see which version a node runs, call the status method and read version.version.

Receipt by Id

Fetches a single receipt by its id.

method: EXPERIMENTAL_receipt
params: receipt_id

Broadcast Async

Broadcasts a signed transaction and returns immediately with the transaction hash. It submits the transaction the same way as send_tx with wait_until: "NONE". The difference is the response: broadcast_tx_async returns the transaction hash as a string, while send_tx returns only {"final_execution_status": "NONE"}.

method: broadcast_tx_async
params: a single positional string — the base64-encoded signed transaction.

Broadcast Commit

Broadcasts a signed transaction and waits for it to be included in a block. Equivalent to send_tx with wait_until: "EXECUTED_OPTIMISTIC".

method: broadcast_tx_commit
params: a single positional string — the base64-encoded signed transaction.

Error Handling

INTERNAL_ERROR is returned as the error name. The other errors are returned with name set to HANDLER_ERROR and the error code below in cause.name.

Error Code	Description	Solution
`INVALID_TRANSACTION`	The signed transaction failed validation.	See Invalid transactions.
`TIMEOUT_ERROR`	The chosen `wait_until` level was not reached before the RPC’s deadline.	See Timeouts.
`UNKNOWN_TRANSACTION`	No record of the requested transaction hash. `tx` and `tx_status` return this only when `wait_until` is `NONE`. With other values, they wait until the deadline and return `TIMEOUT_ERROR`.	Verify the hash and `sender_account_id`.
`DOES_NOT_TRACK_SHARD`	The node does not track the shard needed to answer the request.	Send the request to a node that tracks that shard, such as an RPC node that tracks all shards.
`INTERNAL_ERROR`	The node reached its limits or failed internally.	Try again later.

Invalid transactions

The reason for an INVALID_TRANSACTION error is in data.TxExecutionError.InvalidTxError. For example, this is the error for a transaction whose reference block hash is too old:

{
  "jsonrpc": "2.0",
  "error": {
    "name": "HANDLER_ERROR",
    "cause": {
      "name": "INVALID_TRANSACTION",
      "info": {}
    },
    "code": -32000,
    "message": "Server error",
    "data": {
      "TxExecutionError": {
        "InvalidTxError": "Expired"
      }
    }
  },
  "id": "dontcare"
}

The reason is a string, such as "Expired", or an object, such as {"InvalidNonce": {"tx_nonce": 5, "ak_nonce": 7}}. What to do depends on the reason:

Expired: the reference block hash is too old. Refresh block_hash and sign again.
InvalidSignature: the signature does not match the signer’s key. Sign again with the matching access key.
ShardCongested or ShardStuck: the receiver’s shard is congested. The node checks congestion before the signature, key, nonce and balance, so the transaction may still be valid. Wait, and then send the same signed transaction again while its block hash is still valid.
Any other reason: fix the reported nonce, key or balance, and sign again.

Timeouts

A TIMEOUT_ERROR means that the transaction did not reach the chosen wait_until level before the RPC’s deadline. The nearcore default deadline is 10 seconds. Node operators can change it, so some providers wait longer. From nearcore 2.14.0, cause.info.cause says how far the transaction got. Older nodes send no cause.info.

NOT_OBSERVED: the node has not seen the transaction in a block. After send_tx, poll tx with the transaction hash, and send the same signed transaction again if it does not appear. After tx, check the hash and sender_account_id.
PENDING: the node has seen the transaction, but it has not reached the chosen level yet. The last known status is in cause.info.status. Poll tx again.
DOES_NOT_TRACK_SHARD: the node does not track the shard of the transaction, and it got no answer from a node that does. Send the request to a node that tracks that shard.
ERROR: the node could not get a usable status before the deadline. Try again later.

You can also lower wait_until and poll tx, or use an archival or dedicated provider.

Query

Accounts

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Gas Price

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Light Client

Maintenance & Storage

Transactions

Quick Reference

The `wait_until` Field

Send Transaction

Transaction Status

Transaction Status with Receipts

Receipt by Id

Broadcast Async

Broadcast Commit

Error Handling

Invalid transactions

Timeouts

​Quick Reference

​The wait_until Field

​Send Transaction

​Transaction Status

​Transaction Status with Receipts

​Receipt by Id

​Broadcast Async

​Broadcast Commit

​Error Handling

​Invalid transactions

​Timeouts

Quick Reference

The `wait_until` Field

Send Transaction

Transaction Status

Transaction Status with Receipts

Receipt by Id

Broadcast Async

Broadcast Commit

Error Handling

Invalid transactions

Timeouts