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Pre-1.0 · one maintainer · Stripe and cards only · no SDKs (client libraries) yet · no production users yet. Docs describe v0.9.1 (29 Oct 2026) · What’s new →

Create plan

POST
/v1/plans
curl --request POST \
--url http://localhost:8080/v1/plans \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{ "code": "example", "name": "example", "description": "example", "currency": "example", "billing_interval": "monthly", "base_amount_cents": 1, "base_bill_timing": "in_advance", "prices": [ { "meter_id": "example", "dimension_match": { "additionalProperty": "example" }, "mode": "per_unit", "unit_amount_cents": "example", "tiers": [ { "up_to": 1, "unit_amount_cents": "example" } ], "package_size": 1, "package_amount_cents": "example" } ], "status": "active", "tax_code": "example" }'
Idempotency-Key
string

Makes the call safe to retry. Send a unique value (a UUID works) and the same value on every retry. For 24 hours, a repeat with the same key, method, path and body gets the first response again, with an Idempotent-Replayed: true header, instead of running again. The error cases are in docs/api-surface.md. The usage routes do not take it: each usage event carries its own idempotency_key.

Media typeapplication/json
object
code
required
string
name
required
string
description
string
currency
required
string
billing_interval
required
string
Allowed values: monthly yearly
base_amount_cents
integer format: int64
base_bill_timing

Required when base_amount_cents is above 0. With a base of 0 it may be left out, and the plan is in_arrears; in_advance with a base of 0 is refused. See Plan.base_bill_timing (ADR-031).

string
Allowed values: in_advance in_arrears
prices

The plan’s usage prices, created with it in one request. Each takes the plan’s currency.

Array

One price to add to a plan.

object
meter_id
required
string
dimension_match

The labels an event must carry for the price to take it. Values are strings of 1 to 100 characters, keys too; at most 16 labels. Omitted or {} takes every event of the meter. Two prices of one plan and meter that could both take one event with the same number of labels are refused (409 price_conflict).

object
<= 16 properties
key
additional properties
string
mode
required

per_unit bills quantity × unit_amount_cents. graduated bills each tier’s part of the quantity at that tier’s rate. package bills ceil(quantity ÷ package_size) × package_amount_cents: a part package bills as a whole one.

string
Allowed values: per_unit graduated package
unit_amount_cents

Price per unit in cents, as a decimal string (e.g. “0.0003” = $3.00 per 1,000,000 units). Used when mode is per_unit. 0 or more, under 10^18, at most 12 decimal places (trailing zeros do not count), and at most 100 characters. A JSON number is also read. A value outside them is refused with 422 and param naming the field. Invoice line amounts round to whole cents.

string
tiers

Used when mode is graduated. Each up_to is a whole number above the one before. The last tier has up_to: null (no upper bound), and only the last. Otherwise 422 with param tiers. A tier’s rate takes the limits of unit_amount_cents; a refusal names tiers[i].unit_amount_cents (i counts from 0).

Array<object>
object
up_to
required

The tier’s upper bound in whole units: the tier prices the quantity above the previous tier’s bound, up to this one. null on the last tier, which has no upper bound. Only the last tier is null, and it must be.

integer format: int64
nullable
unit_amount_cents
required

Price per unit in cents in this tier, as a decimal string.

string
package_size

Used when mode is package. Must be above 0.

integer format: int64
package_amount_cents

Price of one package in cents, as a decimal string (e.g. “0.2” with package_size 1000 = $0.002 per 1,000 units), with the limits of unit_amount_cents. Used when mode is package.

string
status

Optional. A plan is created active; archive it with PATCH.

string
Allowed values: active
tax_code

Stripe product tax code for the base fee, such as txcd_10103001. Empty or omitted means the tenant’s default_product_tax_code.

string

Plan created, with its prices

Media typeapplication/json

A plan as Get, Create and Update plan answer it.

object
id
required
string
tenant_id
string
code
required
string
name
required
string
currency
required
string
billing_interval
required
string
Allowed values: monthly yearly
status
required
string
Allowed values: active archived
base_amount_cents
required
integer format: int64
base_bill_timing
required

When the recurring base fee is invoiced relative to the period it covers. in_arrears: base + usage billed at period end. in_advance: base billed at period start (day 1 on create; cycle-close invoice carries upcoming period’s base + elapsed period’s usage). Usage lines are always arrears regardless of this field. A plan with no base fee is in_arrears. See ADR-031.

string
Allowed values: in_advance in_arrears
prices
required

The plan’s usage prices from now on. A plan’s meters are the meters it has a price for.

Array<object>

One usage price of a plan: a meter, the events it takes (dimension_match) and its rate. The price takes the plan’s currency. Its id stays the same when its rate changes; its meter and dimension_match are its identity and never change.

object
id
required
string
tenant_id
string
plan_id
required
string
meter_id
required
string
dimension_match
required

The labels an event must carry for this price to take it, for example {"model": "claude-opus-4.5", "token_type": "input"}. {} takes every event of the meter. Of the prices whose labels an event carries, the one with the most labels takes it.

object
key
additional properties
string
mode
required

As on PriceShape.

string
Allowed values: per_unit graduated package
unit_amount_cents
required

Price per unit in cents, as a decimal string.

string
tiers
required

Empty ([]) unless mode is graduated.

Array<object>
object
up_to
required

The tier’s upper bound in whole units: the tier prices the quantity above the previous tier’s bound, up to this one. null on the last tier, which has no upper bound. Only the last tier is null, and it must be.

integer format: int64
nullable
unit_amount_cents
required

Price per unit in cents in this tier, as a decimal string.

string
package_size
required
integer format: int64
package_amount_cents
required

Price of one package in cents, as a decimal string.

string
created_at
required
string format: date-time
updated_at
required

When the content shown was saved.

string format: date-time
description
string
tax_code

Stripe tax code for this plan. Absent means the tenant’s default_product_tax_code.

string
created_at
required
string format: date-time
updated_at
required
string format: date-time
used
required

Whether a subscription has ever used the plan (canceled ones and scheduled plan changes included). On a plan no one has used, a price change applies at once; on a used plan, from each subscriber’s next billing period, and from the join for a subscriber who first joins the plan in a period after it.

boolean
live_subscription_count
required

Subscriptions on this plan that are not canceled. While it is above 0, base_amount_cents cannot change (see Update plan).

integer

Example

{
"billing_interval": "monthly",
"status": "active",
"base_bill_timing": "in_advance",
"prices": [
{
"id": "hc_prc_1a2b3c4d5e6f7890abcdef12",
"mode": "per_unit"
}
]
}

price_exists: two prices name the same meter and dimension_match. price_conflict: two prices on one meter could both take one event with the same number of labels, so neither would win; the message names the other price, and param names the second one. Nothing is created.

Media typeapplication/json
object
error
object
type

One of invalid_request_error, authentication_error, rate_limit_error or api_error. Every error the API answers has this shape, including an unknown path (404, code route_not_found) and a method the path does not take (405, code method_not_allowed, with an Allow header). The few exceptions are listed in docs/api-surface.md.

string
code
string
message
string
request_id
string
param

The request field the error is about. Sent only when the error names one. A request body may hold only the fields its operation lists, spelled and cased as listed: any other field, or one the server sets (such as id), is refused with 422 and param naming it. An operation with no request body lists no fields: send no body, {} or null. The Stripe and Postmark webhooks and the LiteLLM callback take their sender’s body as it comes.

string

Example

{
"error": {
"type": "invalid_request_error"
}
}

A field failed validation (a price names an unknown meter, a rate is outside its limits, base_bill_timing is missing with a base fee above 0 or is in_advance with a base of 0), status is set to anything but active (a plan is created active; archive it with PATCH), or the body has an unknown field (param names it, prices[i]. first for a price; the body must use only the fields listed here).

Media typeapplication/json
object
error
object
type

One of invalid_request_error, authentication_error, rate_limit_error or api_error. Every error the API answers has this shape, including an unknown path (404, code route_not_found) and a method the path does not take (405, code method_not_allowed, with an Allow header). The few exceptions are listed in docs/api-surface.md.

string
code
string
message
string
request_id
string
param

The request field the error is about. Sent only when the error names one. A request body may hold only the fields its operation lists, spelled and cased as listed: any other field, or one the server sets (such as id), is refused with 422 and param naming it. An operation with no request body lists no fields: send no body, {} or null. The Stripe and Postmark webhooks and the LiteLLM callback take their sender’s body as it comes.

string

Example

{
"error": {
"type": "invalid_request_error"
}
}