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cfw-autumn/apps/docs/mintlify/api-reference/core/track.mdx
John Yeo 90287e6308 latest
2026-02-19 13:24:33 +00:00

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---
title: "Track Usage"
openapi: "openapi POST /v1/balances.track"
---
import { DynamicParamField } from "/components/dynamic-param-field.jsx";
import { DynamicResponseField } from "/components/dynamic-response-field.jsx";
import { DynamicResponseExample } from "/components/dynamic-response-example.jsx";
<Note>
Track records usage events to decrement a customer's balance. Use this to meter feature consumption like API calls, messages sent, or credits used.
</Note>
### Common Use Cases
<CodeGroup>
```typescript Track single usage
await autumn.track({
customerId: "cus_123",
featureId: "ai_messages",
value: 1
});
```
```typescript Track with idempotency
await autumn.track({
customerId: "cus_123",
featureId: "api_calls",
value: 1,
idempotencyKey: "request_abc123" // Prevents duplicate tracking on retry
});
```
```typescript Credit balance (negative value)
await autumn.track({
customerId: "cus_123",
featureId: "seats",
value: -1 // Increases balance when removing a seat
});
```
</CodeGroup>
### Body Parameters
<DynamicParamField body="customer_id" type="string" required>
The ID of the customer.
</DynamicParamField>
<DynamicParamField body="feature_id" type="string">
The ID of the feature to track usage for. Required if event_name is not provided.
</DynamicParamField>
<DynamicParamField body="entity_id" type="string">
The ID of the entity for entity-scoped balances (e.g., per-seat limits).
</DynamicParamField>
<DynamicParamField body="event_name" type="string">
Event name to track usage for. Use instead of feature_id when multiple features should be tracked from a single event.
</DynamicParamField>
<DynamicParamField body="value" type="number">
The amount of usage to record. Defaults to 1. Use negative values to credit balance (e.g., when removing a seat).
</DynamicParamField>
<DynamicParamField body="properties" type="object">
Additional properties to attach to this usage event.
</DynamicParamField>
### Response
<DynamicResponseField name="customer_id" type="string">
The ID of the customer whose usage was tracked.
</DynamicResponseField>
<DynamicResponseField name="entity_id" type="string">
The ID of the entity, if entity-scoped tracking was performed.
</DynamicResponseField>
<DynamicResponseField name="event_name" type="string">
The event name that was tracked, if event_name was used instead of feature_id.
</DynamicResponseField>
<DynamicResponseField name="value" type="number">
The amount of usage that was recorded.
</DynamicResponseField>
<DynamicResponseField name="balance" type="object | null">
The updated balance for the tracked feature. Null if tracking by event_name that affects multiple features.
<Expandable title="properties">
<DynamicResponseField name="feature_id" type="string">
The feature ID this balance is for.
</DynamicResponseField>
<DynamicResponseField name="feature" type="object">
The full feature object if expanded.
<Expandable title="properties">
<DynamicResponseField name="id" type="string" />
<DynamicResponseField name="name" type="string" />
<DynamicResponseField name="type" type="'boolean' | 'metered' | 'credit_system'" />
<DynamicResponseField name="consumable" type="boolean" />
<DynamicResponseField name="event_names" type="string[]" />
<DynamicResponseField name="credit_schema" type="object[]">
<Expandable title="properties">
<DynamicResponseField name="metered_feature_id" type="string" />
<DynamicResponseField name="credit_cost" type="number" />
</Expandable>
</DynamicResponseField>
<DynamicResponseField name="display" type="object">
<Expandable title="properties">
<DynamicResponseField name="singular" type="string | null" />
<DynamicResponseField name="plural" type="string | null" />
</Expandable>
</DynamicResponseField>
<DynamicResponseField name="archived" type="boolean" />
</Expandable>
</DynamicResponseField>
<DynamicResponseField name="granted" type="number">
Total balance granted (included + prepaid).
</DynamicResponseField>
<DynamicResponseField name="remaining" type="number">
Remaining balance available for use.
</DynamicResponseField>
<DynamicResponseField name="usage" type="number">
Total usage consumed in the current period.
</DynamicResponseField>
<DynamicResponseField name="unlimited" type="boolean">
Whether this feature has unlimited usage.
</DynamicResponseField>
<DynamicResponseField name="overage_allowed" type="boolean">
Whether usage beyond the granted balance is allowed (with overage charges).
</DynamicResponseField>
<DynamicResponseField name="max_purchase" type="number | null">
Maximum quantity that can be purchased as a top-up, or null for unlimited.
</DynamicResponseField>
<DynamicResponseField name="next_reset_at" type="number | null">
Timestamp when the balance will reset, or null for no reset.
</DynamicResponseField>
<DynamicResponseField name="breakdown" type="object[]">
Detailed breakdown of balance sources when stacking multiple plans or grants.
<Expandable title="properties">
<DynamicResponseField name="id" type="string">
The unique identifier for this balance breakdown.
</DynamicResponseField>
<DynamicResponseField name="plan_id" type="string | null">
The plan ID this balance originates from, or null for standalone balances.
</DynamicResponseField>
<DynamicResponseField name="included_grant" type="number">
Amount granted from the plan's included usage.
</DynamicResponseField>
<DynamicResponseField name="prepaid_grant" type="number">
Amount granted from prepaid purchases or top-ups.
</DynamicResponseField>
<DynamicResponseField name="remaining" type="number">
Remaining balance available for use.
</DynamicResponseField>
<DynamicResponseField name="usage" type="number">
Amount consumed in the current period.
</DynamicResponseField>
<DynamicResponseField name="unlimited" type="boolean">
Whether this balance has unlimited usage.
</DynamicResponseField>
<DynamicResponseField name="reset" type="object | null">
Reset configuration for this balance, or null if no reset.
<Expandable title="properties">
<DynamicResponseField name="interval" type="'one_off' | 'minute' | 'hour' | 'day' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
The reset interval (hour, day, week, month, etc.) or 'multiple' if combined from different intervals.
</DynamicResponseField>
<DynamicResponseField name="interval_count" type="number">
Number of intervals between resets (eg. 2 for bi-monthly).
</DynamicResponseField>
<DynamicResponseField name="resets_at" type="number | null">
Timestamp when the balance will next reset.
</DynamicResponseField>
</Expandable>
</DynamicResponseField>
<DynamicResponseField name="price" type="object | null">
Pricing configuration if this balance has usage-based pricing.
<Expandable title="properties">
<DynamicResponseField name="amount" type="number">
The per-unit price amount.
</DynamicResponseField>
<DynamicResponseField name="tiers" type="object[]">
Tiered pricing configuration if applicable.
<Expandable title="properties">
<DynamicResponseField name="to" type="number" />
<DynamicResponseField name="amount" type="number" />
</Expandable>
</DynamicResponseField>
<DynamicResponseField name="billing_units" type="number">
The number of units per billing increment (eg. $9 / 250 units).
</DynamicResponseField>
<DynamicResponseField name="billing_method" type="'prepaid' | 'usage_based'">
Whether usage is prepaid or billed pay-per-use.
</DynamicResponseField>
<DynamicResponseField name="max_purchase" type="number | null">
Maximum quantity that can be purchased, or null for unlimited.
</DynamicResponseField>
</Expandable>
</DynamicResponseField>
<DynamicResponseField name="expires_at" type="number | null">
Timestamp when this balance expires, or null for no expiration.
</DynamicResponseField>
</Expandable>
</DynamicResponseField>
<DynamicResponseField name="rollovers" type="object[]">
Rollover balances carried over from previous periods.
<Expandable title="properties">
<DynamicResponseField name="balance" type="number">
Amount of balance rolled over from a previous period.
</DynamicResponseField>
<DynamicResponseField name="expires_at" type="number">
Timestamp when the rollover balance expires.
</DynamicResponseField>
</Expandable>
</DynamicResponseField>
</Expandable>
</DynamicResponseField>
<DynamicResponseField name="balances.{key}" type="object">
Map of feature_id to updated balance when tracking by event_name affects multiple features.
<Expandable title="properties">
<DynamicResponseField name="feature_id" type="string">
The feature ID this balance is for.
</DynamicResponseField>
<DynamicResponseField name="feature" type="object">
The full feature object if expanded.
<Expandable title="properties">
<DynamicResponseField name="id" type="string" />
<DynamicResponseField name="name" type="string" />
<DynamicResponseField name="type" type="'boolean' | 'metered' | 'credit_system'" />
<DynamicResponseField name="consumable" type="boolean" />
<DynamicResponseField name="event_names" type="string[]" />
<DynamicResponseField name="credit_schema" type="object[]">
<Expandable title="properties">
<DynamicResponseField name="metered_feature_id" type="string" />
<DynamicResponseField name="credit_cost" type="number" />
</Expandable>
</DynamicResponseField>
<DynamicResponseField name="display" type="object">
<Expandable title="properties">
<DynamicResponseField name="singular" type="string | null" />
<DynamicResponseField name="plural" type="string | null" />
</Expandable>
</DynamicResponseField>
<DynamicResponseField name="archived" type="boolean" />
</Expandable>
</DynamicResponseField>
<DynamicResponseField name="granted" type="number">
Total balance granted (included + prepaid).
</DynamicResponseField>
<DynamicResponseField name="remaining" type="number">
Remaining balance available for use.
</DynamicResponseField>
<DynamicResponseField name="usage" type="number">
Total usage consumed in the current period.
</DynamicResponseField>
<DynamicResponseField name="unlimited" type="boolean">
Whether this feature has unlimited usage.
</DynamicResponseField>
<DynamicResponseField name="overage_allowed" type="boolean">
Whether usage beyond the granted balance is allowed (with overage charges).
</DynamicResponseField>
<DynamicResponseField name="max_purchase" type="number | null">
Maximum quantity that can be purchased as a top-up, or null for unlimited.
</DynamicResponseField>
<DynamicResponseField name="next_reset_at" type="number | null">
Timestamp when the balance will reset, or null for no reset.
</DynamicResponseField>
<DynamicResponseField name="breakdown" type="object[]">
Detailed breakdown of balance sources when stacking multiple plans or grants.
<Expandable title="properties">
<DynamicResponseField name="id" type="string">
The unique identifier for this balance breakdown.
</DynamicResponseField>
<DynamicResponseField name="plan_id" type="string | null">
The plan ID this balance originates from, or null for standalone balances.
</DynamicResponseField>
<DynamicResponseField name="included_grant" type="number">
Amount granted from the plan's included usage.
</DynamicResponseField>
<DynamicResponseField name="prepaid_grant" type="number">
Amount granted from prepaid purchases or top-ups.
</DynamicResponseField>
<DynamicResponseField name="remaining" type="number">
Remaining balance available for use.
</DynamicResponseField>
<DynamicResponseField name="usage" type="number">
Amount consumed in the current period.
</DynamicResponseField>
<DynamicResponseField name="unlimited" type="boolean">
Whether this balance has unlimited usage.
</DynamicResponseField>
<DynamicResponseField name="reset" type="object | null">
Reset configuration for this balance, or null if no reset.
<Expandable title="properties">
<DynamicResponseField name="interval" type="'one_off' | 'minute' | 'hour' | 'day' | 'week' | 'month' | 'quarter' | 'semi_annual' | 'year'">
The reset interval (hour, day, week, month, etc.) or 'multiple' if combined from different intervals.
</DynamicResponseField>
<DynamicResponseField name="interval_count" type="number">
Number of intervals between resets (eg. 2 for bi-monthly).
</DynamicResponseField>
<DynamicResponseField name="resets_at" type="number | null">
Timestamp when the balance will next reset.
</DynamicResponseField>
</Expandable>
</DynamicResponseField>
<DynamicResponseField name="price" type="object | null">
Pricing configuration if this balance has usage-based pricing.
<Expandable title="properties">
<DynamicResponseField name="amount" type="number">
The per-unit price amount.
</DynamicResponseField>
<DynamicResponseField name="tiers" type="object[]">
Tiered pricing configuration if applicable.
<Expandable title="properties">
<DynamicResponseField name="to" type="number" />
<DynamicResponseField name="amount" type="number" />
</Expandable>
</DynamicResponseField>
<DynamicResponseField name="billing_units" type="number">
The number of units per billing increment (eg. $9 / 250 units).
</DynamicResponseField>
<DynamicResponseField name="billing_method" type="'prepaid' | 'usage_based'">
Whether usage is prepaid or billed pay-per-use.
</DynamicResponseField>
<DynamicResponseField name="max_purchase" type="number | null">
Maximum quantity that can be purchased, or null for unlimited.
</DynamicResponseField>
</Expandable>
</DynamicResponseField>
<DynamicResponseField name="expires_at" type="number | null">
Timestamp when this balance expires, or null for no expiration.
</DynamicResponseField>
</Expandable>
</DynamicResponseField>
<DynamicResponseField name="rollovers" type="object[]">
Rollover balances carried over from previous periods.
<Expandable title="properties">
<DynamicResponseField name="balance" type="number">
Amount of balance rolled over from a previous period.
</DynamicResponseField>
<DynamicResponseField name="expires_at" type="number">
Timestamp when the rollover balance expires.
</DynamicResponseField>
</Expandable>
</DynamicResponseField>
</Expandable>
</DynamicResponseField>
<ResponseExample>
```json 200
{
"customer_id": "cus_123",
"value": 1,
"balance": {
"feature_id": "messages",
"granted": 100,
"remaining": 72,
"usage": 28,
"unlimited": false,
"overage_allowed": false,
"max_purchase": null,
"next_reset_at": 1773851121437,
"breakdown": [
{
"id": "cus_ent_39qmLooixXLAqMywgXywjAz96rV",
"plan_id": "pro_plan",
"included_grant": 100,
"prepaid_grant": 0,
"remaining": 72,
"usage": 28,
"unlimited": false,
"reset": {
"interval": "month",
"resets_at": 1773851121437
},
"price": null,
"expires_at": null
}
]
}
}
```
</ResponseExample>