# signed\_call

Execute a signed read with encrypted calldata.

## Signatures

```python
# sync
w3.seismic.signed_call(
    *,
    to: ChecksumAddress,
    data: HexBytes,
    value: int = 0,
    gas: int = 30_000_000,
    security: SeismicSecurityParams | None = None,
    eip712: bool = False,
) -> HexBytes

# async
await w3.seismic.signed_call(...same args...) -> HexBytes
```

## Parameters

| Parameter  | Type                                                                                                                                     | Default      | Description                          |
| ---------- | ---------------------------------------------------------------------------------------------------------------------------------------- | ------------ | ------------------------------------ |
| `to`       | `ChecksumAddress`                                                                                                                        | Required     | Contract address to call             |
| `data`     | `HexBytes`                                                                                                                               | Required     | Plaintext calldata (SDK encrypts it) |
| `value`    | `int`                                                                                                                                    | `0`          | Wei to include in the call context   |
| `gas`      | `int`                                                                                                                                    | `30_000_000` | Gas limit                            |
| `security` | [`SeismicSecurityParams`](https://docs.seismic.systems/clients/python/api-reference/transaction-types/seismic-security-params) `\| None` | `None`       | Override default security parameters |
| `eip712`   | `bool`                                                                                                                                   | `False`      | Use EIP-712 typed-data signing path  |

## Returns

`HexBytes` — decrypted response bytes. Empty RPC result (`"0x"`) returns `HexBytes(b"")`.

## Example

```python
raw = w3.seismic.signed_call(to="0xTarget", data=calldata)
if raw:
    print(raw.hex())
```

## Notes

* Does **not** modify blockchain state — this is a read-only `eth_call`
* Both request and response are encrypted end-to-end (calldata, function selector, arguments, and the returned data)
* Does not increment your account nonce
* For contract interactions, prefer `contract.read.functionName(...)` which handles ABI encoding/decoding automatically

## See Also

* [send\_shielded\_transaction](https://docs.seismic.systems/clients/python/namespaces/methods/send-shielded-transaction) — Write equivalent (modifies state)
* [contract.read](https://docs.seismic.systems/clients/python/contract/namespaces/read) — High-level signed read API
* [contract.tread](https://docs.seismic.systems/clients/python/contract/namespaces/tread) — Transparent reads (no encryption)
* [SeismicSecurityParams](https://docs.seismic.systems/clients/python/api-reference/transaction-types/seismic-security-params) — Security parameter reference