---
title: "POST /signals/"
method: POST
path: "/signals/"
---

# POST /signals/

`POST /signals/`

Creates a new Signal entity that can be used to identify new content for review.

## Request body

- object
  - `content` object, required
    - `value` string, required
    - `type` 'HASH_PDQ' | 'HASH_MD5' | 'URL', required
  - `source` object
    - `name` 'TCAP' | 'GIFCT' | 'USER_REPORT', required
    - `author` string
    - `create_time` string, date-time

## Response `201`

The signal was successfully created.

- Signal
  - `id` string
  - `create_time` string, date-time, nullable
  - `content` object[]
    - `value` string
    - `content_type` 'URL' | 'HASH_PDQ' | 'HASH_MD5' | 'API' | 'UNKNOWN'
  - `sources` object[]
    - `name` 'TCAP' | 'GIFCT' | 'USER_REPORT' | 'SAFE_SEARCH' | 'PERSPECTIVE' | 'UNKNOWN', required
    - `author` string, nullable
    - `create_time` string, date-time, nullable
  - `content_features` object
    - `associated_entities` string[]
    - `contains_pii` 'YES' | 'NO' | 'UNSURE', nullable
    - `is_violent_or_graphic"` 'YES' | 'NO' | 'UNSURE', nullable
    - `is_illegal_in_countries` string[]
    - `tags` string[]
  - `status` object
    - `last_checked_time` string, date-time, nullable
    - `verifier` string
    - `most_recent_status` 'UNKNOWN' | 'ACTIVE' | 'REMOVED_BY_USER' | 'REMOVED_BY_MODERATOR' | 'UNAVAILABLE', nullable

## Other responses

- `400` — An invalid request was provided.
- `500` — An internal error occurred.

---

[API](https://skmtc.dev/google/apis/altitude-api.md) · [All operations](https://skmtc.dev/google/apis/altitude-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/google/altitude-api/revisions/5f70f11404d8/schema)