# activity_balances

Read actual postings attributed to contract activities and parties, keeping each ledger's native unit separate. Does not post scheduled activity.

## What it shows

Actual legacy activity, priced-right economic/lifecycle and metered usage balances, with separate native ledgers and units. Metered observations, reconciliations and settlements retain contract and party without a single activityKey. An activity_key filter excludes shared metered amounts and whole mixed replacement corrections. Legacy settlements and credits follow the original accounting binding. Does not infer future performance or unposted expiry.

## Example MCP App view

The read-only example below uses illustrative demo data and the same report component as the MCP App. These are not your books or the result of the request example.

<iframe class="docs-report-preview" src="/docs/report-previews/activity_balances.html" title="activity_balances report view with demo data" loading="lazy" sandbox referrerpolicy="no-referrer"></iframe>

[Open the full example view](/docs/report-previews/activity_balances.html).

## Inputs

Send the fixed `kind` and these parameters at the top level of the report request, not inside `input`.

Required means required within its containing object; an optional parent can be omitted.

| Field | Type | Required | Meaning and accepted values |
|---|---|---|---|
| `as_of` | string | Yes | The date (YYYY-MM-DD) or UTC timestamp (RFC 3339) the report is taken at. A date is a UTC day and includes everything on it; a timestamp includes everything before that moment. A calendar date includes the whole UTC day (exclusive cutoff); an explicit timestamp keeps the stated instant. Format: moment. Example: `"2026-09-01"`. |
| `contract_id` | string | No | Resolved activity-contract subject ID.  |
| `activity_key` | string | No | Activity binding key within the contract.  |
| `party_id` | string | No | Party subject ID.  |
| `ledger_id` | string | No | Native ledger ID.  |
| `account_code` | integer | No | Native chart account code. Minimum: `1`. |

## Reading the result

Running this report does not change the books. Its description above distinguishes recorded-book summaries from previews based on supplied facts or assumptions. Interpret its totals, grouping, missing-data indicators and pagination using that description. Monetary amounts are integer strings in the reported unit; ratios and assumptions can be fractional numbers. An empty result is not evidence that the business had no activity.

The public OpenAPI contract does not enumerate this report's result fields. Fetch `GET /v1/reports` for its live description and parameters, and inspect the returned JSON rather than assuming an output shape.

## Example request


```json
{
  "kind": "activity_balances",
  "as_of": "2026-09-01"
}
```


[All reports](/docs/report-reference/) · [Operation and errors](/docs/api-reference/operations/reports-run/) · [Reusable schemas](/docs/api-reference/components/)

Keep credentials out of prompts; rehearse writes only in a disposable sandbox.

## Exact request schema


```json
{
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "kind": {
      "const": "activity_balances"
    },
    "as_of": {
      "description": "The date (YYYY-MM-DD) or UTC timestamp (RFC 3339) the report is taken at. A date is a UTC day and includes everything on it; a timestamp includes everything before that moment.",
      "type": "string",
      "minLength": 1
    },
    "contract_id": {
      "description": "Resolved activity-contract subject ID.",
      "type": "string",
      "minLength": 1
    },
    "activity_key": {
      "description": "Activity binding key within the contract.",
      "type": "string",
      "minLength": 1
    },
    "party_id": {
      "description": "Party subject ID.",
      "type": "string",
      "minLength": 1
    },
    "ledger_id": {
      "description": "Native ledger ID.",
      "type": "string",
      "minLength": 1
    },
    "account_code": {
      "description": "Native chart account code.",
      "type": "integer",
      "minimum": 1
    }
  },
  "required": [
    "kind",
    "as_of"
  ]
}
```