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> For a complete documentation index, see https://docs.runledger.co/llms.txt.
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# Create a rate card

POST https://api.runledger.co/v1/rate_cards
Content-Type: application/json

Adds a new version of a custom cost model's rates. A cost model from the provider price catalog gets its rate cards from the catalog, and a request for one is refused with `409`: use `overrides` instead. Send `effective_from` to schedule it, or leave it out to save a draft and activate it later. A rate card never changes once it is active: a new version replaces it from its own `effective_from`, and the response lists what differs from the version before (`changes`) and which price rules the change touches (`affected_price_rules`). A new version must start after every earlier version of the cost model, including any that is still scheduled, and `effective_from` can't be in the past: either one returns `400` with `parameter_invalid` on `effective_from`. A new version applies only from its start date onward. Recorded usage is never repriced: it keeps the version that priced it. In live mode an agent's write is refused with `403` and `proposal_required`: put the same object in a config proposal. People change live configuration in the dashboard.

Reference: https://docs.runledger.co/api-reference/rate-cards/create

## Authentication

- `Authorization` header (bearer token, required) — A secret key (`rl_sk_test_...`, `rl_sk_live_...`) or a restricted key with limited scopes (`rl_rk_test_...`, `rl_rk_live_...`). A restricted key can carry `agent: true` and an `expires_at`, and is what a coding agent should hold. Keys end in a checksum so secret scanners can recognize them. People create, roll and revoke keys in the dashboard; `GET /v1/api_keys` lists them, masked.

## Request

### Headers

- `Runledger-Dry-Run` (boolean, optional) — Send `true` to see what the write would do without doing it. The response is the normal body with `dry_run: true`, `changes` (path, before, after), `warnings` and `errors` added, and nothing is stored. Validation runs as it would for a real write. The request is kept in request logs, tagged **Dry run**. When the same change is then made for real, its audit event has `dry_run_preceded: true`.

### Body (application/json)

This endpoint expects a CreateRateCardRequest.

- `currency` (string, required) — Lowercase ISO 4217 code the rates are in.
- `rates` (list of CostRate, required)
- `cost_model` (string, required) — The cost model (ID or key) these rates belong to.
- `effective_from` (datetime, optional) — When this version starts to price usage. It must be now or later, and after the start of every earlier version of the cost model, including a scheduled one. A new version applies only from this date onward. Recorded usage is never repriced: events and costs dated before it keep the earlier version. Leave it out to save a draft.
- `as_of` (date, optional) — The date you read these rates from the provider, so a person can see how fresh they are.
- `source_reference` (string, optional) — Where the rates came from, such as the provider's pricing page address or a contract reference.
- `reason` (string, optional) — Why the rates changed. Recorded in the audit log.

## Response

### 200

The new rate card.

- `id` (string, required)
- `object` ("rate_card", required)
- `cost_model` (string, required) — The cost model ID.
- `version` (integer, required) — 1 for the first rate card of a cost model, then one more for each new card.
- `status` (enum, required) — `draft`: saved, not active. `scheduled`: becomes active at `effective_from`. `active`: in force. `superseded`: replaced by a later version.
  - Allowed values: `draft`, `scheduled`, `active`, `superseded`
- `source` (enum, required) — Where a cost model's rates come from. `catalog`: the provider price catalog that Runledger maintains, with your overrides on top. `custom`: rate cards you enter yourself.
  - Allowed values: `catalog`, `custom`
- `currency` (string, required)
- `rates` (list of CostRate, required)
- `livemode` (boolean, required)
- `created_at` (datetime, required)
- `catalog_price` (string, optional) — For `source: catalog`. The catalog price version these rates are (`catp_...`). Runledger creates one rate card for each catalog price version, with the same rates, `effective_from`, `as_of` and source. Your overrides are applied when a line is priced and are not part of the card.
- `effective_from` (datetime, optional)
- `effective_to` (datetime, optional) — When a later version replaced this one. Left out while it is in force.
- `as_of` (date, optional)
- `source_reference` (string, optional)
- `source_url` (string, optional) — For `source: catalog`. The catalog price version's source.
- `changes` (list of ConfigChange, optional) — What differs from the version before, rate by rate.
- `affected_price_rules` (list of string, optional) — The keys of price rules that price from this cost model.
- `warnings` (list of ConfigIssue, optional) — For example `price_rule_held`, which says a rule set to `hold` keeps its current prices and so its margin falls or rises with the new costs.
- `actor` (Actor, optional) — Who made a change. Runledger fills it in from the credential, so a client can't claim to be someone else: an API key always acts as itself, the dashboard calls the API as the signed-in person, and the MCP server passes the client's name and the person it acts for. A request that sends a `Runledger-Actor` header is refused with `400 parameter_unknown`.

## Errors

### 400 Bad Request Error

The request was malformed or a parameter was invalid. A configuration that fails validation, such as two equally specific overrides with overlapping dates, returns `config_invalid`.

- `type` (string, required) — A URI for the error type. It links to the error codes table in the docs, where each `code` is listed with its cause. Branch on `code`, not on `type`.
- `title` (string, required) — A short summary of the error type.
- `status` (integer, required) — The HTTP status code.
- `code` (enum, required) — A stable, machine-readable error code. New codes may be added.
  - Allowed values: `invalid_request`, `parameter_missing`, `parameter_invalid`, `parameter_unknown`, `authentication_failed`, `permission_denied`, `insufficient_scope`, `proposal_required`, `config_invalid`, `livemode_mismatch`, `resource_not_found`, `resource_already_exists`, `idempotency_key_in_use`, `idempotency_key_reused`, `invalid_state`, `outcome_charge_locked`, `hold_not_active`, `insufficient_balance`, `credit_limit_exceeded`, `plan_locked`, `test_clock_advancing`, `provider_error`, `rate_limited`, `api_error`, `service_unavailable`
- `request_id` (string, required) — The ID of the request. Quote it to support, or look it up in request logs.
- `retryable` (boolean, required) — Whether sending the same request again, with the same idempotency key, may succeed.
- `detail` (string, optional) — An explanation of this occurrence. For people; don't parse it.
- `param` (string, optional) — The request parameter at fault, as a dotted path.
- `required_scope` (string, optional) — The scope the call needed, on `insufficient_scope`. Ask a person to widen the key, or reconnect with it.
- `errors` (list of ConfigIssue, optional) — Only with `config_invalid`: each problem the configuration document has, with the path of the part at fault, so an agent can fix the document without a second call.
- `blocked_by` (list of ErrorResponseBlockedByItems, optional) — On an `invalid_state` that names the objects in the way, the objects that must change first. Removing a payment provider lists every routing rule that uses it (`object: routing_rule`) and every customer whose own `payment_provider` names it (`object: customer`), in one list.
- `doc_url` (string, optional) — A link to the error codes table in the docs, where this `code` is listed with its cause.

### 401 Unauthorized Error

The API key is missing, invalid or revoked.

- `type` (string, required) — A URI for the error type. It links to the error codes table in the docs, where each `code` is listed with its cause. Branch on `code`, not on `type`.
- `title` (string, required) — A short summary of the error type.
- `status` (integer, required) — The HTTP status code.
- `code` (enum, required) — A stable, machine-readable error code. New codes may be added.
  - Allowed values: `invalid_request`, `parameter_missing`, `parameter_invalid`, `parameter_unknown`, `authentication_failed`, `permission_denied`, `insufficient_scope`, `proposal_required`, `config_invalid`, `livemode_mismatch`, `resource_not_found`, `resource_already_exists`, `idempotency_key_in_use`, `idempotency_key_reused`, `invalid_state`, `outcome_charge_locked`, `hold_not_active`, `insufficient_balance`, `credit_limit_exceeded`, `plan_locked`, `test_clock_advancing`, `provider_error`, `rate_limited`, `api_error`, `service_unavailable`
- `request_id` (string, required) — The ID of the request. Quote it to support, or look it up in request logs.
- `retryable` (boolean, required) — Whether sending the same request again, with the same idempotency key, may succeed.
- `detail` (string, optional) — An explanation of this occurrence. For people; don't parse it.
- `param` (string, optional) — The request parameter at fault, as a dotted path.
- `required_scope` (string, optional) — The scope the call needed, on `insufficient_scope`. Ask a person to widen the key, or reconnect with it.
- `errors` (list of ConfigIssue, optional) — Only with `config_invalid`: each problem the configuration document has, with the path of the part at fault, so an agent can fix the document without a second call.
- `blocked_by` (list of ErrorResponseBlockedByItems, optional) — On an `invalid_state` that names the objects in the way, the objects that must change first. Removing a payment provider lists every routing rule that uses it (`object: routing_rule`) and every customer whose own `payment_provider` names it (`object: customer`), in one list.
- `doc_url` (string, optional) — A link to the error codes table in the docs, where this `code` is listed with its cause.

### 403 Forbidden Error

The key can't do this. A restricted or agent key lacks the scope (`insufficient_scope`, with `required_scope`), a live key called a sandbox-only endpoint, an agent tried a live config write that needs a proposal (`proposal_required`), or something only a signed-in person can do.

- `type` (string, required) — A URI for the error type. It links to the error codes table in the docs, where each `code` is listed with its cause. Branch on `code`, not on `type`.
- `title` (string, required) — A short summary of the error type.
- `status` (integer, required) — The HTTP status code.
- `code` (enum, required) — A stable, machine-readable error code. New codes may be added.
  - Allowed values: `invalid_request`, `parameter_missing`, `parameter_invalid`, `parameter_unknown`, `authentication_failed`, `permission_denied`, `insufficient_scope`, `proposal_required`, `config_invalid`, `livemode_mismatch`, `resource_not_found`, `resource_already_exists`, `idempotency_key_in_use`, `idempotency_key_reused`, `invalid_state`, `outcome_charge_locked`, `hold_not_active`, `insufficient_balance`, `credit_limit_exceeded`, `plan_locked`, `test_clock_advancing`, `provider_error`, `rate_limited`, `api_error`, `service_unavailable`
- `request_id` (string, required) — The ID of the request. Quote it to support, or look it up in request logs.
- `retryable` (boolean, required) — Whether sending the same request again, with the same idempotency key, may succeed.
- `detail` (string, optional) — An explanation of this occurrence. For people; don't parse it.
- `param` (string, optional) — The request parameter at fault, as a dotted path.
- `required_scope` (string, optional) — The scope the call needed, on `insufficient_scope`. Ask a person to widen the key, or reconnect with it.
- `errors` (list of ConfigIssue, optional) — Only with `config_invalid`: each problem the configuration document has, with the path of the part at fault, so an agent can fix the document without a second call.
- `blocked_by` (list of ErrorResponseBlockedByItems, optional) — On an `invalid_state` that names the objects in the way, the objects that must change first. Removing a payment provider lists every routing rule that uses it (`object: routing_rule`) and every customer whose own `payment_provider` names it (`object: customer`), in one list.
- `doc_url` (string, optional) — A link to the error codes table in the docs, where this `code` is listed with its cause.

### 404 Not Found Error

No object with that ID exists in this environment.

- `type` (string, required) — A URI for the error type. It links to the error codes table in the docs, where each `code` is listed with its cause. Branch on `code`, not on `type`.
- `title` (string, required) — A short summary of the error type.
- `status` (integer, required) — The HTTP status code.
- `code` (enum, required) — A stable, machine-readable error code. New codes may be added.
  - Allowed values: `invalid_request`, `parameter_missing`, `parameter_invalid`, `parameter_unknown`, `authentication_failed`, `permission_denied`, `insufficient_scope`, `proposal_required`, `config_invalid`, `livemode_mismatch`, `resource_not_found`, `resource_already_exists`, `idempotency_key_in_use`, `idempotency_key_reused`, `invalid_state`, `outcome_charge_locked`, `hold_not_active`, `insufficient_balance`, `credit_limit_exceeded`, `plan_locked`, `test_clock_advancing`, `provider_error`, `rate_limited`, `api_error`, `service_unavailable`
- `request_id` (string, required) — The ID of the request. Quote it to support, or look it up in request logs.
- `retryable` (boolean, required) — Whether sending the same request again, with the same idempotency key, may succeed.
- `detail` (string, optional) — An explanation of this occurrence. For people; don't parse it.
- `param` (string, optional) — The request parameter at fault, as a dotted path.
- `required_scope` (string, optional) — The scope the call needed, on `insufficient_scope`. Ask a person to widen the key, or reconnect with it.
- `errors` (list of ConfigIssue, optional) — Only with `config_invalid`: each problem the configuration document has, with the path of the part at fault, so an agent can fix the document without a second call.
- `blocked_by` (list of ErrorResponseBlockedByItems, optional) — On an `invalid_state` that names the objects in the way, the objects that must change first. Removing a payment provider lists every routing rule that uses it (`object: routing_rule`) and every customer whose own `payment_provider` names it (`object: customer`), in one list.
- `doc_url` (string, optional) — A link to the error codes table in the docs, where this `code` is listed with its cause.

### 409 Conflict Error

The object is in a state that doesn't allow this (`invalid_state`, for example approving a stale config proposal or deleting a price rule a plan rate still uses), or a request with the same idempotency key is still in progress.

- `type` (string, required) — A URI for the error type. It links to the error codes table in the docs, where each `code` is listed with its cause. Branch on `code`, not on `type`.
- `title` (string, required) — A short summary of the error type.
- `status` (integer, required) — The HTTP status code.
- `code` (enum, required) — A stable, machine-readable error code. New codes may be added.
  - Allowed values: `invalid_request`, `parameter_missing`, `parameter_invalid`, `parameter_unknown`, `authentication_failed`, `permission_denied`, `insufficient_scope`, `proposal_required`, `config_invalid`, `livemode_mismatch`, `resource_not_found`, `resource_already_exists`, `idempotency_key_in_use`, `idempotency_key_reused`, `invalid_state`, `outcome_charge_locked`, `hold_not_active`, `insufficient_balance`, `credit_limit_exceeded`, `plan_locked`, `test_clock_advancing`, `provider_error`, `rate_limited`, `api_error`, `service_unavailable`
- `request_id` (string, required) — The ID of the request. Quote it to support, or look it up in request logs.
- `retryable` (boolean, required) — Whether sending the same request again, with the same idempotency key, may succeed.
- `detail` (string, optional) — An explanation of this occurrence. For people; don't parse it.
- `param` (string, optional) — The request parameter at fault, as a dotted path.
- `required_scope` (string, optional) — The scope the call needed, on `insufficient_scope`. Ask a person to widen the key, or reconnect with it.
- `errors` (list of ConfigIssue, optional) — Only with `config_invalid`: each problem the configuration document has, with the path of the part at fault, so an agent can fix the document without a second call.
- `blocked_by` (list of ErrorResponseBlockedByItems, optional) — On an `invalid_state` that names the objects in the way, the objects that must change first. Removing a payment provider lists every routing rule that uses it (`object: routing_rule`) and every customer whose own `payment_provider` names it (`object: customer`), in one list.
- `doc_url` (string, optional) — A link to the error codes table in the docs, where this `code` is listed with its cause.

### 422 Unprocessable Entity Error

The idempotency key was already used with a different request body.

- `type` (string, required) — A URI for the error type. It links to the error codes table in the docs, where each `code` is listed with its cause. Branch on `code`, not on `type`.
- `title` (string, required) — A short summary of the error type.
- `status` (integer, required) — The HTTP status code.
- `code` (enum, required) — A stable, machine-readable error code. New codes may be added.
  - Allowed values: `invalid_request`, `parameter_missing`, `parameter_invalid`, `parameter_unknown`, `authentication_failed`, `permission_denied`, `insufficient_scope`, `proposal_required`, `config_invalid`, `livemode_mismatch`, `resource_not_found`, `resource_already_exists`, `idempotency_key_in_use`, `idempotency_key_reused`, `invalid_state`, `outcome_charge_locked`, `hold_not_active`, `insufficient_balance`, `credit_limit_exceeded`, `plan_locked`, `test_clock_advancing`, `provider_error`, `rate_limited`, `api_error`, `service_unavailable`
- `request_id` (string, required) — The ID of the request. Quote it to support, or look it up in request logs.
- `retryable` (boolean, required) — Whether sending the same request again, with the same idempotency key, may succeed.
- `detail` (string, optional) — An explanation of this occurrence. For people; don't parse it.
- `param` (string, optional) — The request parameter at fault, as a dotted path.
- `required_scope` (string, optional) — The scope the call needed, on `insufficient_scope`. Ask a person to widen the key, or reconnect with it.
- `errors` (list of ConfigIssue, optional) — Only with `config_invalid`: each problem the configuration document has, with the path of the part at fault, so an agent can fix the document without a second call.
- `blocked_by` (list of ErrorResponseBlockedByItems, optional) — On an `invalid_state` that names the objects in the way, the objects that must change first. Removing a payment provider lists every routing rule that uses it (`object: routing_rule`) and every customer whose own `payment_provider` names it (`object: customer`), in one list.
- `doc_url` (string, optional) — A link to the error codes table in the docs, where this `code` is listed with its cause.

### 429 Too Many Requests Error

Too many requests. Wait for the number of seconds in `Retry-After`.

- `type` (string, required) — A URI for the error type. It links to the error codes table in the docs, where each `code` is listed with its cause. Branch on `code`, not on `type`.
- `title` (string, required) — A short summary of the error type.
- `status` (integer, required) — The HTTP status code.
- `code` (enum, required) — A stable, machine-readable error code. New codes may be added.
  - Allowed values: `invalid_request`, `parameter_missing`, `parameter_invalid`, `parameter_unknown`, `authentication_failed`, `permission_denied`, `insufficient_scope`, `proposal_required`, `config_invalid`, `livemode_mismatch`, `resource_not_found`, `resource_already_exists`, `idempotency_key_in_use`, `idempotency_key_reused`, `invalid_state`, `outcome_charge_locked`, `hold_not_active`, `insufficient_balance`, `credit_limit_exceeded`, `plan_locked`, `test_clock_advancing`, `provider_error`, `rate_limited`, `api_error`, `service_unavailable`
- `request_id` (string, required) — The ID of the request. Quote it to support, or look it up in request logs.
- `retryable` (boolean, required) — Whether sending the same request again, with the same idempotency key, may succeed.
- `detail` (string, optional) — An explanation of this occurrence. For people; don't parse it.
- `param` (string, optional) — The request parameter at fault, as a dotted path.
- `required_scope` (string, optional) — The scope the call needed, on `insufficient_scope`. Ask a person to widen the key, or reconnect with it.
- `errors` (list of ConfigIssue, optional) — Only with `config_invalid`: each problem the configuration document has, with the path of the part at fault, so an agent can fix the document without a second call.
- `blocked_by` (list of ErrorResponseBlockedByItems, optional) — On an `invalid_state` that names the objects in the way, the objects that must change first. Removing a payment provider lists every routing rule that uses it (`object: routing_rule`) and every customer whose own `payment_provider` names it (`object: customer`), in one list.
- `doc_url` (string, optional) — A link to the error codes table in the docs, where this `code` is listed with its cause.

### 500 Internal Server Error

Something went wrong on Runledger's side. Safe to retry with the same idempotency key.

- `type` (string, required) — A URI for the error type. It links to the error codes table in the docs, where each `code` is listed with its cause. Branch on `code`, not on `type`.
- `title` (string, required) — A short summary of the error type.
- `status` (integer, required) — The HTTP status code.
- `code` (enum, required) — A stable, machine-readable error code. New codes may be added.
  - Allowed values: `invalid_request`, `parameter_missing`, `parameter_invalid`, `parameter_unknown`, `authentication_failed`, `permission_denied`, `insufficient_scope`, `proposal_required`, `config_invalid`, `livemode_mismatch`, `resource_not_found`, `resource_already_exists`, `idempotency_key_in_use`, `idempotency_key_reused`, `invalid_state`, `outcome_charge_locked`, `hold_not_active`, `insufficient_balance`, `credit_limit_exceeded`, `plan_locked`, `test_clock_advancing`, `provider_error`, `rate_limited`, `api_error`, `service_unavailable`
- `request_id` (string, required) — The ID of the request. Quote it to support, or look it up in request logs.
- `retryable` (boolean, required) — Whether sending the same request again, with the same idempotency key, may succeed.
- `detail` (string, optional) — An explanation of this occurrence. For people; don't parse it.
- `param` (string, optional) — The request parameter at fault, as a dotted path.
- `required_scope` (string, optional) — The scope the call needed, on `insufficient_scope`. Ask a person to widen the key, or reconnect with it.
- `errors` (list of ConfigIssue, optional) — Only with `config_invalid`: each problem the configuration document has, with the path of the part at fault, so an agent can fix the document without a second call.
- `blocked_by` (list of ErrorResponseBlockedByItems, optional) — On an `invalid_state` that names the objects in the way, the objects that must change first. Removing a payment provider lists every routing rule that uses it (`object: routing_rule`) and every customer whose own `payment_provider` names it (`object: customer`), in one list.
- `doc_url` (string, optional) — A link to the error codes table in the docs, where this `code` is listed with its cause.

## Types

### CostRate

The price of one unit, for the usage lines whose dimensions match. A rate with fewer dimensions matches more lines, and the most specific matching rate wins. Send `unit_amount_decimal` or `tiers`.

- `unit` (string, required)
- `per` (string, optional, default: 1) — How many units `unit_amount_decimal` covers, as a decimal string. Use `"1000000"` for a price per million tokens.
- `unit_amount_decimal` (string, optional) — Minor units of the rate card's currency for `per` units, as a decimal string.
- `dimensions` (map from string to string, optional) — The dimension values this rate is for. Leave a dimension out to match any value.
- `tier_mode` (enum, optional, default: graduated) — With `tiers`. `graduated`: each band's price applies to the quantity inside that band. `volume`: the band the whole quantity falls in prices all of it, as when a long prompt is priced higher in full.
  - Allowed values: `graduated`, `volume`
- `tiers` (list of RateTier, optional)

### ConfigChange

One field that changes, with its value before and after. A removed object or field has `before` and no `after`: a replace (`PUT /v1/config`) lists each removal this way, before anything is applied.

- `path` (string, required)
- `before` (any, optional) — The current value. Left out when the field is new.
- `after` (any, optional) — The new value. Left out when the field is removed.

### ConfigIssue

A problem or warning about a part of a configuration document.

- `code` (string, required) — A stable code. New codes may be added.
- `message` (string, required)
- `path` (string, optional) — Where in the document, as a dotted path.

### Actor

Who made a change. Runledger fills it in from the credential, so a client can't claim to be someone else: an API key always acts as itself, the dashboard calls the API as the signed-in person, and the MCP server passes the client's name and the person it acts for. A request that sends a `Runledger-Actor` header is refused with `400 parameter_unknown`.

- `type` (enum, required) — `user`: a signed-in person, including a person at Runledger support acting in your account, whose `name` reads `Runledger support`. `agent`: an agent connected through an OAuth session or an agent key. `key`: any other API key. `rule`: a reversal rule. `system`: Runledger itself, such as a clock.
  - Allowed values: `user`, `agent`, `key`, `rule`, `system`
- `id` (string, optional) — The user, key or agent session ID. Left out for `rule` and `system`, except a change a customer makes on the customer view, which carries the customer session's ID.
- `name` (string, optional) — A display name, such as a person's name, a key's name or the MCP client.
- `on_behalf_of` (string, optional) — The person an agent acts for, when known.
- `client` (string, optional) — The software that made the call, such as an MCP client or SDK.

### ErrorResponseBlockedByItems

- `object` (enum, required) — The kind of object in the way: a routing rule, or a customer with a `payment_provider` override.
  - Allowed values: `routing_rule`, `customer`
- `id` (string, required) — The object's ID, `rr_...` for a routing rule and `cus_...` for a customer.

### RateTier

One band of a quantity. The last band leaves out `up_to`.

- `unit_amount_decimal` (string, required) — Minor units per unit of the band, as a decimal string.
- `up_to` (string, optional) — The quantity this band runs up to, as a decimal string.

## Examples

**Request**

```json
{
  "currency": "usd",
  "rates": [
    {
      "unit": "video_seconds"
    }
  ],
  "cost_model": "vidlab-v2"
}
```

**Response**

```json
{
  "id": "rc_4tG9wK2nPd",
  "object": "string",
  "cost_model": "cm_6bR3xN8vQe",
  "version": 1,
  "status": "draft",
  "source": "catalog",
  "currency": "usd",
  "rates": [
    {
      "unit": "video_seconds",
      "per": "1",
      "unit_amount_decimal": "12",
      "dimensions": {
        "resolution": "1080p"
      },
      "tier_mode": "graduated",
      "tiers": [
        {
          "unit_amount_decimal": "300",
          "up_to": "200000"
        }
      ]
    }
  ],
  "livemode": true,
  "created_at": "2024-01-15T09:30:00Z",
  "catalog_price": "catp_9cW4hL6rBv",
  "effective_from": "2024-01-15T09:30:00Z",
  "effective_to": "2024-01-15T09:30:00Z",
  "as_of": "2023-01-15",
  "source_reference": "string",
  "source_url": "string",
  "changes": [
    {
      "path": "outcome_definitions.chat_resolution.confirmation_window",
      "before": null,
      "after": null
    }
  ],
  "affected_price_rules": [
    "string"
  ],
  "warnings": [
    {
      "code": "confirmation_window_short",
      "message": "The charge confirms almost at once, so only the reversal horizon protects you.",
      "path": "outcome_definitions.0.confirmation_window"
    }
  ],
  "actor": {
    "type": "user",
    "id": "usr_4tN8vB2cXk",
    "name": "Claude Code",
    "on_behalf_of": "usr_4tN8vB2cXk",
    "client": "claude-code"
  }
}
```

**SDK Code**

```python
import requests

url = "https://api.runledger.co/v1/rate_cards"

payload = {
    "currency": "usd",
    "rates": [{ "unit": "video_seconds" }],
    "cost_model": "vidlab-v2"
}
headers = {
    "Authorization": "Bearer <api_key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.runledger.co/v1/rate_cards';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <api_key>', 'Content-Type': 'application/json'},
  body: '{"currency":"usd","rates":[{"unit":"video_seconds"}],"cost_model":"vidlab-v2"}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.runledger.co/v1/rate_cards"

	payload := strings.NewReader("{\n  \"currency\": \"usd\",\n  \"rates\": [\n    {\n      \"unit\": \"video_seconds\"\n    }\n  ],\n  \"cost_model\": \"vidlab-v2\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <api_key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.runledger.co/v1/rate_cards")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <api_key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"currency\": \"usd\",\n  \"rates\": [\n    {\n      \"unit\": \"video_seconds\"\n    }\n  ],\n  \"cost_model\": \"vidlab-v2\"\n}"

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.runledger.co/v1/rate_cards")
  .header("Authorization", "Bearer <api_key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"currency\": \"usd\",\n  \"rates\": [\n    {\n      \"unit\": \"video_seconds\"\n    }\n  ],\n  \"cost_model\": \"vidlab-v2\"\n}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.runledger.co/v1/rate_cards', [
  'body' => '{
  "currency": "usd",
  "rates": [
    {
      "unit": "video_seconds"
    }
  ],
  "cost_model": "vidlab-v2"
}',
  'headers' => [
    'Authorization' => 'Bearer <api_key>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.runledger.co/v1/rate_cards");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <api_key>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"currency\": \"usd\",\n  \"rates\": [\n    {\n      \"unit\": \"video_seconds\"\n    }\n  ],\n  \"cost_model\": \"vidlab-v2\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Bearer <api_key>",
  "Content-Type": "application/json"
]
let parameters = [
  "currency": "usd",
  "rates": [["unit": "video_seconds"]],
  "cost_model": "vidlab-v2"
] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.runledger.co/v1/rate_cards")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```