# Get Calls

Paginated list of indexed calls (root + nested).

_Source: https://beta.taostats.io/docs/new/chain/get-calls_

_Last reviewed: 2026-10-07_

```http
GET https://api.taostats.io/v1/calls
```

Requires an API key in the `Authorization` header.

Paginated list of indexed calls (root + nested).

## Try it

Try this request in the browser on the HTML version of this page, or use the code samples below.

### Code samples

**cURL**

```bash
curl -H "Authorization: <YOUR_API_KEY>" \
  "https://api.taostats.io/v1/calls"
```

**JavaScript**

```js
const response = await fetch('https://api.taostats.io/v1/calls', {
  headers: {
    Authorization: '<YOUR_API_KEY>',
  },
});
const data = await response.json();
```

**Python**

```python
import requests

response = requests.get(
    "https://api.taostats.io/v1/calls",
    headers={"Authorization": "<YOUR_API_KEY>"},
)
data = response.json()
```

## Parameters

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `network` | query | `string` |  | Network. One of `finney`, `kusanagi`, `nakamoto`. Default: `finney`. One of `finney`, `kusanagi`, `nakamoto`. |
| `block_number` | query | `integer (int32)` |  | Specific block number (exact match). |
| `block_start` | query | `integer (int32)` |  | Block range start (inclusive lower bound). |
| `block_end` | query | `integer (int32)` |  | Block range end (inclusive upper bound). |
| `timestamp_start` | query | `integer (int64)` |  | Timestamp range start, Unix seconds (inclusive lower bound). |
| `timestamp_end` | query | `integer (int64)` |  | Timestamp range end, Unix seconds (inclusive upper bound). |
| `full_name` | query | `string` |  | Exact match on `full_name` (`Pallet.Name`). |
| `pallet` | query | `string` |  | Exact match on `pallet`. |
| `name` | query | `string` |  | Exact match on `name`. |
| `id` | query | `string` |  | Exact match on `id`. Format: `{block}-{ext_idx:04}[-N[-N...]]`. |
| `parent_id` | query | `string` |  | Exact match on `parent_id`. The only `parent_id` filter ever applied to `/v1/calls` — never injected by the handler. |
| `success` | query | `boolean` |  | Exact match on `success`. |
| `signer_address` | query | `string` |  | Extrinsic signer address. Accepts SS58 (`5G...`) or 0x-hex (`0xd435...`); normalized to SS58 before the query. Matches every call in a signed extrinsic. |
| `origin_address` | query | `string` |  | Call origin address. Accepts SS58 or 0x-hex; normalized to SS58 before the query. Matches this call's `RuntimeOrigin` account. |
| `extrinsic_id` | query | `string` |  | Exact match on `extrinsic_id`. Use to fetch every call (root + nested) under a given extrinsic. |
| `page` | query | `integer (int32)` |  | Page number (1-indexed). Default: 1. Bounded window: `(page − 1) × limit` must be below 1,000,000. Deep `OFFSET` paging is linear in the offset, so an uncapped `page` lets one request scan tens of millions of rows; a page past the window is rejected with a 400. Reach deeper history with this endpoint's range filters (`block_start`/`block_end`, `timestamp_start`/`timestamp_end`) rather than a larger `page`. |
| `limit` | query | `integer (int32)` |  | Results per page. Default: 50. Max: 200. |
| `order_by` | query | `string` |  | Column to order by. Only `timestamp` is supported. One of `timestamp`. |
| `order_dir` | query | `string` |  | Sort direction. Default: `desc`. One of `asc`, `desc`. |
| `include_args` | query | `boolean` |  | Include the heavy `args` column. `args` is **omitted by default** on this listing endpoint. `true` forces it present (regardless of `fields`); `false` forces it omitted. When unset, `args` appears only if `fields` lists it, or if `id` targets a single row. |
| `fields` | query | `string` |  | Sparse fieldset: comma-separated list of top-level response keys to return (e.g. `fields=id,pallet,name`). Unknown names are ignored. `args_summary` is always returned regardless. When omitted, the full default field set is returned. |

## Responses

### `200` — Paginated list of calls (root + nested) matching the filter set

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `data` | `array` | Yes |  |
| `data[].args` | `object` |  | Call arguments as a structured JSON value. Parsed from the JSON string the indexer writes into the `args` column. `null` when the indexer didn't record args. **Omitted by default** on this listing endpoint to keep payloads small (a `Sudo.sudo_unchecked_weight` wrapping `System.set_code` inlines an 8.78 MB WASM blob). Opt back in with `?include_args=true`, by selecting it via `?fields=args`, or by targeting a single row with `id=` (the detail path). When omitted the column is not read from ClickHouse at all. The derived `args_summary` is always present. Schema-optional (not in `required`): unlike other nullable fields, `args` may be **absent** from a response — that is the #41 default — so SDKs must model it as optional, not present-but-null. |
| `data[].args_summary` | `object` | Yes | Always-present (~100 B) summary of the call's single inner/wrapped call. The `inner_call*` sub-fields are `null` when the row has no inner call. Lets a client flag a runtime upgrade, and size it, without fetching the blob. See [`ArgsSummary`]. |
| `data[].args_summary.args_size_bytes` | `integer (int64)` | Yes | Exact byte length of the row's whole stored `args` column — always present, always exact, and cheap to read (`length(args)` never transfers the value). `0` when the row has no args. |
| `data[].args_summary.inner_call` | `string, nullable` | Yes | Inner call's full name (`Pallet.Name`, e.g. `"System.set_code"`), or `null` when the row has no inner call. |
| `data[].args_summary.inner_call_kind` | `string, nullable` | Yes | Coarse classification of the inner call, or `null` when the row has no inner call. One of `runtime_upgrade`, `wrapped_call`. |
| `data[].args_summary.inner_call_size_bytes` | `integer (int64), nullable` | Yes | Byte length of the inner call's JSON-encoded args (the heavy payload). `null` when the row has no inner call, **and** when the row's `args` did not fit in the [`ARGS_HEAD_CHARS`] prefix the listing reads and the caller did not request the column: measuring it would mean reading a multi-MiB blob, which is the read that killed the pods (#574). `args_size_bytes` carries the magnitude in that case, and `?include_args=true` (or `id=`) makes this field exact again. |
| `data[].block_number` | `integer (int32)` | Yes | Block height. |
| `data[].error` | `object` | Yes | Error details (JSON) if the call failed. Root calls carry `System.ExtrinsicFailed`; child calls carry the boundary-event error. |
| `data[].extrinsic_id` | `string` | Yes | Parent extrinsic ID (the root call's `id`). Same value as `id` on root rows. |
| `data[].extrinsic_index` | `integer (int32)` | Yes | Extrinsic index within the block. |
| `data[].id` | `string` | Yes | Call ID. Format: `{block}-{ext_idx:04}[-N[-N...]]`. |
| `data[].name` | `string` | Yes |  |
| `data[].origin` | `object` | Yes | `RuntimeOrigin` JSON. Populated on root rows; `null` on children. |
| `data[].origin_address` | `string, nullable` | Yes | SS58 address of this call's `RuntimeOrigin` account, set by the immediate parent wrapper. Equal to `signer_address` on the root of a signed extrinsic; on children follows the wrapper (proxied `real`, `sudo_as` `who`, etc.). |
| `data[].pallet` | `string` | Yes |  |
| `data[].parent_id` | `string, nullable` | Yes | Parent call ID, or `null` on root calls. |
| `data[].signer_address` | `string, nullable` | Yes | SS58 address of the extrinsic signer — same on every call in a signed extrinsic; `null` for unsigned extrinsics. |
| `data[].success` | `boolean` | Yes |  |
| `data[].timestamp` | `string` | Yes | ISO 8601 timestamp with millisecond precision, e.g. `"2024-05-15T10:30:00.000Z"`. |
| `pagination` | `object` | Yes | Pagination metadata appended to collection responses. `next_page` / `prev_page` are explicitly required+nullable in the OpenAPI spec: per `docs/api_standards.md` we emit `null` rather than omitting the field, so the SDK should model them as `Option`/nullable types that are always present in the response. **`total_items` is the exact number of matching rows** on every route (issue #992). It used to stop at 1,000,000, which reported a million transfers when finney holds 7,513,252 and a million events when the real figure is 981,179,110; the cap was removed on 29 Sep 2026 and nothing may reintroduce one — `crate::pagination::exact_count_sql` is the only count form, and `no_capped_count_reaches_the_api_surface` in `data-debug-scripts` fails the build if a capped one comes back. **`total_pages` is still bounded**, to `crate::pagination::max_reachable_page(per_page)`, because the `page` parameter is capped to a 1,000,000-row window: deep `OFFSET` paging reads every skipped row (24.7M rows / 36.6 GiB / 42 s measured on one endpoint, issue #413). So `total_pages` is exactly the last page this API will serve and `next_page` / `prev_page` stay coherent at the window edge, while `total_items` tells the caller how many rows there really are. History beyond the window is reached with each endpoint's range filters, not a larger `page`. |
| `pagination.current_page` | `integer (int32)` | Yes | 1-indexed page that produced the rows in `data`. |
| `pagination.next_page` | `integer (int32), nullable` | Yes | Next page number, or `null` if this is the last page. |
| `pagination.per_page` | `integer (int32)` | Yes | Number of items requested per page. |
| `pagination.prev_page` | `integer (int32), nullable` | Yes | Previous page number, or `null` if this is the first page. |
| `pagination.total_items` | `integer (int64)` | Yes | Number of items matching the query across all pages. This is the exact count — every matching row, however many there are. It is not bounded by `total_pages`, so a listing can legitimately report far more items than `total_pages × per_page`. |
| `pagination.total_pages` | `integer (int32)` | Yes | Number of pages at the current `per_page` that this API will serve: `ceil(total_items / per_page)`, capped at `ceil(1000000 / per_page)` because the `page` parameter only reaches into the first 1,000,000 rows. When the cap bites, `total_items` is still the true total and this is the last page a request can ask for; reach deeper history with the endpoint's range filters instead of a larger `page`. |

### `400` — Invalid query parameter

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `message` | `string` | Yes | Plain-english message describing the failure from the caller's perspective. |
| `status_code` | `integer (int32)` | Yes | HTTP status code (mirrored in the response status line for convenience). |

### `413` — The selected rows carry more `args` than one request may materialize — lower `limit`, narrow the filter, or drop `include_args`

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `message` | `string` | Yes | Plain-english message describing the failure from the caller's perspective. |
| `status_code` | `integer (int32)` | Yes | HTTP status code (mirrored in the response status line for convenience). |

### `500` — Internal server error

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `message` | `string` | Yes | Plain-english message describing the failure from the caller's perspective. |
| `status_code` | `integer (int32)` | Yes | HTTP status code (mirrored in the response status line for convenience). |

### `503` — Another large `args` response is already in flight; retry shortly

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `message` | `string` | Yes | Plain-english message describing the failure from the caller's perspective. |
| `status_code` | `integer (int32)` | Yes | HTTP status code (mirrored in the response status line for convenience). |

Every request needs an `Authorization` header holding your API key — see [Getting started with the Taostats API](https://beta.taostats.io/docs/start-here/getting-started-with-taostats-api).