# List services

`GET https://evohub.io/api/v1/catalog/components`

Part of the [Catalog API](https://docs.evohub.io/catalog.md) reference · operationId `listComponents`.

A page of the organization's services, ordered by `sort`. For a key
that also holds `catalog:resource:read`, each service carries
`live_environments`: how many environments it runs in.

Requires the `catalog:component:read` scope.

## Authorization

Any one of:

- `bearerKey`
- `headerKey`

Where:

- `bearerKey`: HTTP Bearer — An EvoHub API key (`evohub_…`) as a bearer token.
- `headerKey`: API key in the header `X-API-Key` — An EvoHub API key (`evohub_…`).

## Query parameters

- `owner_team_id` (string, example `team_3b6f0e2a-1c4d-4e8f-9a7b-2d5c6e8f0a1b`): Only services owned by this team.
- `tier` (integer, min 1, max 4): Only services whose tier is at this place in the order, 1 the most critical.
- `lifecycle` (Lifecycle, one of `experimental`, `production`, `deprecated`, `retired`)
- `kind` (ComponentKind, one of `service`, `library`, `database`, `website`, `job`, `other`)
- `q` (string, max length 100): Search the name and slug, at most 100 characters.
- `sort` (string, example `tier`): `slug` (the default), `kind`, `tier` (services with no tier last) or `lifecycle`; a leading `-` reverses it. Any other value is refused.
- `limit` (integer, min 1, max 100): Page size, 20 by default, at most 100.
- `cursor` (string): The previous page's `pagination.next_cursor`.

## Responses

### 200 — A page of services.

Content type: `application/json`

Type: `object`

- `data` (array of Component & object)
  - `id` (string, example `cmp_7a1d3f5b9c2e4a6b8d0f1e3c5a7b9d2f`)
  - `org_id` (string)
  - `slug` (string, example `payments-api`)
  - `display_name` (string, example `Payments API`)
  - `description` (string)
  - `kind` (ComponentKind, one of `service`, `library`, `database`, `website`, `job`, `other`)
  - `owner_team_id` (string | null)
  - `tier_id` (string | null)
  - `tier` (integer | null): The tier's place in the order, 1 the most critical.
  - `sla_overrides` (SLATargets)
    - `availability` (number, example `99.9`): A percentage above 0 and at most 100, up to 3 decimals.
    - `response` (object): Minutes to acknowledge, per On-Call severity (`critical`, `high`, `medium`, `low`, `info`), 1 to 525600.
      - Other keys: integer
    - `resolution` (object): Minutes to resolve, per severity.
      - Other keys: integer
    - `support_hours` (object)
      - `kind` (string, required, one of `24x7`, `business`)
      - `timezone` (string, example `Europe/Istanbul`)
      - `days` (array of integer): ISO weekdays, 1 is Monday.
      - `from` (string, example `09:00`)
      - `to` (string, example `18:00`)
    - `max_unowned_days` (integer, min 0, max 3650)
  - `lifecycle` (Lifecycle, one of `experimental`, `production`, `deprecated`, `retired`)
  - `repo_url` (string)
  - `docs_url` (string)
  - `runbook_url` (string)
  - `created_by` (string)
  - `created_at` (string (date-time))
  - `updated_at` (string (date-time))
  - `live_environments` (integer): Environments it runs in. Only with `catalog:resource:read`.
- `pagination` (Pagination)
  - `next_cursor` (string | null)
  - `has_more` (boolean)
  - `total` (integer): How many match, on the first page of the resource and application lists.

### 400 — The request is not valid: a field or filter value is wrong (`VALIDATION_ERROR`, with a sentence saying what), the body is not the expected JSON or carries an unknown field (`INVALID_BODY`), the cursor is not one this list gave (`INVALID_CURSOR`), a binding names a service that does not exist (`UNKNOWN_COMPONENT`), or a `PATCH` tries to change a slug (`SLUG_IMMUTABLE`).

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required, example `NOT_FOUND`)
  - `message` (string, required, example `not found`)
  - `request_id` (string)

### 401 — No API key was sent, or it is unknown, revoked or expired (`UNAUTHORIZED`).

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required, example `NOT_FOUND`)
  - `message` (string, required, example `not found`)
  - `request_id` (string)

### 403 — The key lacks a scope this endpoint needs (`FORBIDDEN`).

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required, example `NOT_FOUND`)
  - `message` (string, required, example `not found`)
  - `request_id` (string)

### 429 — Too many requests (`RATE_LIMITED`). Wait for `Retry-After` seconds.

Headers:

- `Retry-After` (integer): Seconds to wait before retrying.

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required, example `NOT_FOUND`)
  - `message` (string, required, example `not found`)
  - `request_id` (string)

### 500 — Something went wrong on EvoHub's side (`INTERNAL_ERROR`). Retry later.

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required, example `NOT_FOUND`)
  - `message` (string, required, example `not found`)
  - `request_id` (string)

## Example request

```bash
curl -X GET 'https://evohub.io/api/v1/catalog/components' \
  -H 'Authorization: Bearer <TOKEN>'
```