> ## Documentation Index
> Fetch the complete documentation index at: https://docs.thornode.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Astralane routes

> Bifrost routes for Astralane sendTransaction, sendBundle, sendBatch, sendIdeal, and getNonce, with the JSON-RPC body each one takes.

Send the JSON-RPC body Astralane's own [submit-transactions reference](https://astralane.gitbook.io/docs/low-latency/submit-transactions) defines. Do not add `api-key`; ThorNode supplies it. The response body is Astralane's, unchanged.

| Route                            | Method                                                                  | Transactions | Minimum tip          |
| -------------------------------- | ----------------------------------------------------------------------- | ------------ | -------------------- |
| `POST /astralane`                | `sendTransaction` (also accepts `sendBundle`, `sendBatch`, `sendIdeal`) | 1            | 10,000 lamports      |
| `POST /astrln-submit-bundle`     | `sendBundle`                                                            | 1–4          | 10,000 lamports      |
| `POST /astrln-submit-batch`      | `sendBatch`                                                             | 1–25         | 10,000 lamports each |
| `POST /astrln-submit-ideal`      | `sendIdeal`                                                             | exactly 2    | 10,000 lamports      |
| `GET` / `POST /astrln-get-nonce` | `getNonce`                                                              | —            | —                    |

Query parameters `mev-protect` and `swqos-only` are forwarded to Astralane. `sendPaladin` returns `410`.

## Tip addresses

```text theme={null}
astrazznxsGUhWShqgNtAdfrzP2G83DzcWVJDxwV9bF
astra4uejePWneqNaJKuFFA8oonqCE1sqF6b45kDMZm
astra9xWY93QyfG6yM8zwsKsRodscjQ2uU2HKNL5prk
astraRVUuTHjpwEVvNBeQEgwYx9w9CFyfxjYoobCZhL
astraEJ2fEj8Xmy6KLG7B3VfbKfsHXhHrNdCQx7iGJK
astraubkDw81n4LuutzSQ8uzHCv4BhPVhfvTcYv8SKC
astraZW5GLFefxNPAatceHhYjfA1ciq9gvfEg2S47xk
astrawVNP4xDBKT7rAdxrLYiTSTdqtUr63fSMduivXK
```

## sendTransaction

```text theme={null}
POST /astralane
```

```json theme={null}
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "sendTransaction",
  "params": [
    "<BASE64_SIGNED_TRANSACTION>",
    { "encoding": "base64", "skipPreflight": true },
    { "mevProtect": true }
  ]
}
```

`params[2]` is optional. Response: `{"jsonrpc":"2.0","id":1,"result":"<SIGNATURE>"}`.

## sendBundle

Up to 4 transactions executed in order; Astralane reverts the whole bundle if a member fails.

```text theme={null}
POST /astrln-submit-bundle
```

```json theme={null}
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "sendBundle",
  "params": [
    ["<BASE64_SIGNED_TRANSACTION_1>", "<BASE64_SIGNED_TRANSACTION_2>"],
    { "encoding": "base64", "mevProtect": true, "revertProtection": false }
  ]
}
```

## sendBatch

Up to 25 independent transactions; each returns its own signature.

```text theme={null}
POST /astrln-submit-batch
```

```json theme={null}
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "sendBatch",
  "params": [
    ["<BASE64_SIGNED_TRANSACTION_1>", "<BASE64_SIGNED_TRANSACTION_2>"],
    { "mevProtect": true }
  ]
}
```

Response: `{"jsonrpc":"2.0","id":1,"result":["<SIGNATURE_1>","<SIGNATURE_2>"]}`.

## sendIdeal

Exactly two transactions: one weighted toward priority fees, one toward tips. Both use the same durable nonce so the loser is cancelled once the other lands.

```text theme={null}
POST /astrln-submit-ideal
```

```json theme={null}
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "sendIdeal",
  "params": [["<BASE64_HIGH_TIP_LOW_FEE_TRANSACTION>", "<BASE64_LOW_TIP_HIGH_FEE_TRANSACTION>"]]
}
```

## getNonce

Returns the managed nonce account an ideal pair needs.

```text theme={null}
GET  /astrln-get-nonce
POST /astrln-get-nonce
```

Response:

```json theme={null}
{ "nonce": "<HASH>", "nonceAccount": "<PUBKEY>", "nonceAuthority": "<PUBKEY>" }
```

## Next steps

* [Bifrost errors and pre-forward checks](/api-reference/bifrost/overview)
* [Astralane submit-transactions reference](https://astralane.gitbook.io/docs/low-latency/submit-transactions)