Add a base price or a selectable market price variant. Variants inherit their base price outside the markets they override. Configure introductory and promotional benefits through Offers.

Authorization

ApiKeyAuth

x-api-key<token>

In: header

Path Parameters

id*string

Header Parameters

Idempotency-Key?string

Unique key used to safely retry this write for 24 hours without applying it twice.

Length1 <= length <= 200

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

A base price. Market prices are optional overrides; currency pricing remains the fallback elsewhere.

Response Body

`application/json`

curl -X POST "https://example.com/plans/string/prices" \  -H "Content-Type: application/json" \  -d '{    "billingInterval": "weekly",    "price": 0  }'

{  "id": "price_1a2b3c4d",  "planId": "plan_1a2b3c4d",  "billingInterval": "monthly",  "price": 2000,  "isDefault": true,  "trialDays": 0,  "includedBalance": null,  "includedCredits": null,  "offerId": null,  "inheritsFromPriceId": null,  "metadata": {},  "marketPrices": [],  "createdAt": "2026-09-07T12:00:00.000Z",  "updatedAt": "2026-09-07T12:00:00.000Z",  "object": "plan_price",  "livemode": false}

{  "error": {    "type": "validation_error",    "code": "validation_error",    "message": "The request contains an invalid parameter.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/validation_error.md"  }}

{  "error": {    "type": "authentication_error",    "code": "unauthorized",    "message": "A valid API key is required.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/unauthorized.md"  }}

{  "error": {    "type": "authentication_error",    "code": "forbidden",    "message": "You do not have permission to perform this operation.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/forbidden.md"  }}

{  "error": {    "type": "not_found_error",    "code": "not_found",    "message": "The requested resource was not found.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/not_found.md"  }}

{  "error": {    "type": "conflict_error",    "code": "idempotency_in_progress",    "message": "A request with this idempotency key is still being processed.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/idempotency_in_progress.md"  }}

{  "error": {    "type": "rate_limit_error",    "code": "rate_limited",    "message": "Too many requests. Retry after the interval specified in the Retry-After header.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/rate_limited.md"  }}

{  "error": {    "type": "internal_error",    "code": "internal_error",    "message": "An unexpected error occurred while processing the request.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/internal_error.md"  }}

{  "error": {    "type": "internal_error",    "code": "idempotency_unavailable",    "message": "Idempotency storage is temporarily unavailable. Retry with the same idempotency key.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/idempotency_unavailable.md"  }}

Add price to plan

Add a base price or a selectable market price variant. Variants inherit their base price outside the markets they override. Configure introductory and promotional benefits through Offers.

Authorization

ApiKeyAuth

x-api-key<token>

In: header

Path Parameters

id*string

Header Parameters

Idempotency-Key?string

Unique key used to safely retry this write for 24 hours without applying it twice.

Length1 <= length <= 200

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

A base price. Market prices are optional overrides; currency pricing remains the fallback elsewhere.

billingInterval*string

Value in

"weekly"
"monthly"
"quarterly"
"yearly"
"one_time"

metadata?

price*integer

Range0 <= value <= 9007199254740991

trialDays?integer

Range0 <= value <= 9007199254740991

isDefault?boolean

includedBalance?|null

includedCredits?|null

marketPrices?array<>

Items1 <= items

Response Body

`application/json`

curl -X POST "https://example.com/plans/string/prices" \  -H "Content-Type: application/json" \  -d '{    "billingInterval": "weekly",    "price": 0  }'

{  "id": "price_1a2b3c4d",  "planId": "plan_1a2b3c4d",  "billingInterval": "monthly",  "price": 2000,  "isDefault": true,  "trialDays": 0,  "includedBalance": null,  "includedCredits": null,  "offerId": null,  "inheritsFromPriceId": null,  "metadata": {},  "marketPrices": [],  "createdAt": "2026-09-07T12:00:00.000Z",  "updatedAt": "2026-09-07T12:00:00.000Z",  "object": "plan_price",  "livemode": false}

{  "error": {    "type": "validation_error",    "code": "validation_error",    "message": "The request contains an invalid parameter.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/validation_error.md"  }}

{  "error": {    "type": "authentication_error",    "code": "unauthorized",    "message": "A valid API key is required.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/unauthorized.md"  }}

{  "error": {    "type": "authentication_error",    "code": "forbidden",    "message": "You do not have permission to perform this operation.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/forbidden.md"  }}

{  "error": {    "type": "not_found_error",    "code": "not_found",    "message": "The requested resource was not found.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/not_found.md"  }}

{  "error": {    "type": "conflict_error",    "code": "idempotency_in_progress",    "message": "A request with this idempotency key is still being processed.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/idempotency_in_progress.md"  }}

{  "error": {    "type": "rate_limit_error",    "code": "rate_limited",    "message": "Too many requests. Retry after the interval specified in the Retry-After header.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/rate_limited.md"  }}

{  "error": {    "type": "internal_error",    "code": "internal_error",    "message": "An unexpected error occurred while processing the request.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/internal_error.md"  }}

{  "error": {    "type": "internal_error",    "code": "idempotency_unavailable",    "message": "Idempotency storage is temporarily unavailable. Retry with the same idempotency key.",    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/idempotency_unavailable.md"  }}

Add price to plan

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Add price to plan

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