---
title: "List Project Billing Fields"
method: GET
path: "/v1/projects/{project_id}/billing/fields"
tags: ["fields"]
---

# List Project Billing Fields

`GET /v1/projects/{project_id}/billing/fields`

Lists the accessors, deployment types, tags, and line items used for billing data in the specified time period. Use this endpoint if you want to filter your results from the Billing Breakdown endpoint and want to know what filters are available.

## Path parameters

- `project_id` string, required

## Query parameters

- `start` string, date
- `end` string, date

## Headers

- `Authorization` string, required

## Response `200`

A list of billing fields for a specific project

- ListBillingFieldsV1Response
  - `accessors` string[] — List of accessor UUIDs for the time period
  - `deployments` ListBillingFieldsV1ResponseDeploymentsItems[] — List of deployment types for the time period
  - `tags` string[] — List of tags for the time period
  - `line_items` object — Map of line item names to human-readable descriptions for the time period

## Other responses

- `400` — Invalid Request

---

[API](https://skmtc.net/deepgram/apis/rest-api.md) · [All operations](https://skmtc.net/deepgram/apis/rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/deepgram/rest-api/revisions/bd7ba5c18a6b/schema)