Environments-20

For instructions on how to authenticate to use this endpoint, see API overview.

Endpoints

POST
POST
POST
GET
POST
GET
PATCH
DELETE
GET
GET

Create llm analytics summarization batch check

Check which traces have cached summaries available.

This endpoint allows batch checking of multiple trace IDs to see which ones have cached summaries. Returns only the traces that have cached summaries with their titles.

Use Cases:

  • Load cached summaries on session view load
  • Avoid unnecessary LLM calls for already-summarized traces
  • Display summary previews without generating new summaries

Path parameters

  • project_id
    string

Request parameters

  • trace_ids
    array
  • mode
    Default: minimal
  • model
    string

Response


Example request

POST /api/environments/:project_id/llm_analytics/summarization/batch_check
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl 
    -H 'Content-Type: application/json'\
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_analytics/summarization/batch_check/\
	-d trace_ids="array"

Example response

Status 200
RESPONSE
{
  "summaries": [
    {
      "trace_id": "string",
      "title": "string",
      "cached": true
    }
  ]
}
Status 400
Status 403

Create llm analytics text repr

Generate a human-readable text representation of an LLM trace event.

This endpoint converts LLM analytics events ($ai_generation, $ai_span, $ai_embedding, or $ai_trace) into formatted text representations suitable for display, logging, or analysis.

Supported Event Types:

  • $ai_generation: Individual LLM API calls with input/output messages
  • $ai_span: Logical spans with state transitions
  • $ai_embedding: Embedding generation events (text input → vector)
  • $ai_trace: Full traces with hierarchical structure

Options:

  • max_length: Maximum character count (default: 2000000)
  • truncated: Enable middle-content truncation within events (default: true)
  • truncate_buffer: Characters at start/end when truncating (default: 1000)
  • include_markers: Use interactive markers vs plain text indicators (default: true)
    • Frontend: set true for <<<TRUNCATED|base64|...>>> markers
    • Backend/LLM: set false for ... (X chars truncated) ... text
  • collapsed: Show summary vs full trace tree (default: false)
  • include_hierarchy: Include tree structure for traces (default: true)
  • max_depth: Maximum depth for hierarchical rendering (default: unlimited)
  • tools_collapse_threshold: Number of tools before auto-collapsing list (default: 5)
    • Tool lists >5 items show <<<TOOLS_EXPANDABLE|...>>> marker for frontend
    • Or [+] AVAILABLE TOOLS: N for backend when include_markers: false
  • include_line_numbers: Prefix each line with line number like L001:, L010: (default: false)

Use Cases:

  • Frontend display: truncated: true, include_markers: true, include_line_numbers: true
  • Backend LLM context (summary): truncated: true, include_markers: false, collapsed: true
  • Backend LLM context (full): truncated: false

The response includes the formatted text and metadata about the rendering.

Required API key scopes

llm_analytics:write

Path parameters

  • project_id
    string

Request parameters

  • event_type
  • data
  • options

Response


Example request

POST /api/environments/:project_id/llm_analytics/text_repr
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl 
    -H 'Content-Type: application/json'\
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_analytics/text_repr/\
	-d event_type=undefined,\
	-d data=undefined

Example response

Status 200
RESPONSE
{
  "text": "INPUT:\n\n[1] USER\n\nWhat is the capital of France?\n\n...",
  "metadata": {
    "event_type": "$ai_generation",
    "event_id": "gen_123",
    "rendering": "detailed",
    "char_count": 150,
    "truncated": false
  }
}
Status 400
Status 500
Status 503

Create llm analytics translate

Translate text to target language.

Required API key scopes

llm_analytics:write

Path parameters

  • project_id
    string

Example request

POST /api/environments/:project_id/llm_analytics/translate
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl 
    -H 'Content-Type: application/json'\
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_analytics/translate/

Example response

Status 201 No response body

Create llm analytics translate

Translate text to target language.

Required API key scopes

llm_analytics:write

Path parameters

  • project_id
    string

Example request

POST /api/environments/:project_id/llm_analytics/translate
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl 
    -H 'Content-Type: application/json'\
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_analytics/translate/

Example response

Status 201 No response body

List all llm prompts

Required API key scopes

llm_prompt:read

Path parameters

  • project_id
    string

Query parameters

  • limit
    integer
  • offset
    integer

Response


Example request

GET /api/environments/:project_id/llm_prompts
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl \
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_prompts/

Example response

Status 200
RESPONSE
{
  "count": 123,
  "next": "http://api.example.org/accounts/?offset=400&limit=100",
  "previous": "http://api.example.org/accounts/?offset=200&limit=100",
  "results": [
    {
      "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
      "name": "string",
      "prompt": null,
      "version": 0,
      "created_by": {
        "id": 0,
        "uuid": "095be615-a8ad-4c33-8e9c-c7612fbf6c9f",
        "distinct_id": "string",
        "first_name": "string",
        "last_name": "string",
        "email": "user@example.com",
        "is_email_verified": true,
        "hedgehog_config": {
          "property1": null,
          "property2": null
        },
        "role_at_organization": "engineering"
      },
      "created_at": "2019-08-24T14:15:22Z",
      "updated_at": "2019-08-24T14:15:22Z",
      "deleted": true
    }
  ]
}

List all llm prompts

Required API key scopes

llm_prompt:read

Path parameters

  • project_id
    string

Query parameters

  • limit
    integer
  • offset
    integer

Response


Example request

GET /api/environments/:project_id/llm_prompts
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl \
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_prompts/

Example response

Status 200
RESPONSE
{
  "count": 123,
  "next": "http://api.example.org/accounts/?offset=400&limit=100",
  "previous": "http://api.example.org/accounts/?offset=200&limit=100",
  "results": [
    {
      "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
      "name": "string",
      "prompt": null,
      "version": 0,
      "created_by": {
        "id": 0,
        "uuid": "095be615-a8ad-4c33-8e9c-c7612fbf6c9f",
        "distinct_id": "string",
        "first_name": "string",
        "last_name": "string",
        "email": "user@example.com",
        "is_email_verified": true,
        "hedgehog_config": {
          "property1": null,
          "property2": null
        },
        "role_at_organization": "engineering"
      },
      "created_at": "2019-08-24T14:15:22Z",
      "updated_at": "2019-08-24T14:15:22Z",
      "deleted": true
    }
  ]
}

Create llm prompts

Required API key scopes

llm_prompt:write

Path parameters

  • project_id
    string

Request parameters

  • name
    string
  • prompt
  • deleted
    boolean

Response


Example request

POST /api/environments/:project_id/llm_prompts
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl 
    -H 'Content-Type: application/json'\
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_prompts/\
	-d name="string",\
	-d prompt=undefined

Example response

Status 201
RESPONSE
{
  "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
  "name": "string",
  "prompt": null,
  "version": 0,
  "created_by": {
    "id": 0,
    "uuid": "095be615-a8ad-4c33-8e9c-c7612fbf6c9f",
    "distinct_id": "string",
    "first_name": "string",
    "last_name": "string",
    "email": "user@example.com",
    "is_email_verified": true,
    "hedgehog_config": {
      "property1": null,
      "property2": null
    },
    "role_at_organization": "engineering"
  },
  "created_at": "2019-08-24T14:15:22Z",
  "updated_at": "2019-08-24T14:15:22Z",
  "deleted": true
}

Create llm prompts

Required API key scopes

llm_prompt:write

Path parameters

  • project_id
    string

Request parameters

  • name
    string
  • prompt
  • deleted
    boolean

Response


Example request

POST /api/environments/:project_id/llm_prompts
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl 
    -H 'Content-Type: application/json'\
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_prompts/\
	-d name="string",\
	-d prompt=undefined

Example response

Status 201
RESPONSE
{
  "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
  "name": "string",
  "prompt": null,
  "version": 0,
  "created_by": {
    "id": 0,
    "uuid": "095be615-a8ad-4c33-8e9c-c7612fbf6c9f",
    "distinct_id": "string",
    "first_name": "string",
    "last_name": "string",
    "email": "user@example.com",
    "is_email_verified": true,
    "hedgehog_config": {
      "property1": null,
      "property2": null
    },
    "role_at_organization": "engineering"
  },
  "created_at": "2019-08-24T14:15:22Z",
  "updated_at": "2019-08-24T14:15:22Z",
  "deleted": true
}

Retrieve llm prompts

Required API key scopes

llm_prompt:read

Path parameters

  • id
    string
  • project_id
    string

Response


Example request

GET /api/environments/:project_id/llm_prompts/:id
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl \
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_prompts/:id/

Example response

Status 200
RESPONSE
{
  "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
  "name": "string",
  "prompt": null,
  "version": 0,
  "created_by": {
    "id": 0,
    "uuid": "095be615-a8ad-4c33-8e9c-c7612fbf6c9f",
    "distinct_id": "string",
    "first_name": "string",
    "last_name": "string",
    "email": "user@example.com",
    "is_email_verified": true,
    "hedgehog_config": {
      "property1": null,
      "property2": null
    },
    "role_at_organization": "engineering"
  },
  "created_at": "2019-08-24T14:15:22Z",
  "updated_at": "2019-08-24T14:15:22Z",
  "deleted": true
}

Retrieve llm prompts

Required API key scopes

llm_prompt:read

Path parameters

  • id
    string
  • project_id
    string

Response


Example request

GET /api/environments/:project_id/llm_prompts/:id
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl \
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_prompts/:id/

Example response

Status 200
RESPONSE
{
  "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
  "name": "string",
  "prompt": null,
  "version": 0,
  "created_by": {
    "id": 0,
    "uuid": "095be615-a8ad-4c33-8e9c-c7612fbf6c9f",
    "distinct_id": "string",
    "first_name": "string",
    "last_name": "string",
    "email": "user@example.com",
    "is_email_verified": true,
    "hedgehog_config": {
      "property1": null,
      "property2": null
    },
    "role_at_organization": "engineering"
  },
  "created_at": "2019-08-24T14:15:22Z",
  "updated_at": "2019-08-24T14:15:22Z",
  "deleted": true
}

Update llm prompts

Required API key scopes

llm_prompt:write

Path parameters

  • id
    string
  • project_id
    string

Request parameters

  • name
    string
  • prompt
  • deleted
    boolean

Response


Example request

PATCH /api/environments/:project_id/llm_prompts/:id
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl -X PATCH \
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_prompts/:id/\
	-d name="string"

Example response

Status 200
RESPONSE
{
  "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
  "name": "string",
  "prompt": null,
  "version": 0,
  "created_by": {
    "id": 0,
    "uuid": "095be615-a8ad-4c33-8e9c-c7612fbf6c9f",
    "distinct_id": "string",
    "first_name": "string",
    "last_name": "string",
    "email": "user@example.com",
    "is_email_verified": true,
    "hedgehog_config": {
      "property1": null,
      "property2": null
    },
    "role_at_organization": "engineering"
  },
  "created_at": "2019-08-24T14:15:22Z",
  "updated_at": "2019-08-24T14:15:22Z",
  "deleted": true
}

Update llm prompts

Required API key scopes

llm_prompt:write

Path parameters

  • id
    string
  • project_id
    string

Request parameters

  • name
    string
  • prompt
  • deleted
    boolean

Response


Example request

PATCH /api/environments/:project_id/llm_prompts/:id
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl -X PATCH \
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_prompts/:id/\
	-d name="string"

Example response

Status 200
RESPONSE
{
  "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
  "name": "string",
  "prompt": null,
  "version": 0,
  "created_by": {
    "id": 0,
    "uuid": "095be615-a8ad-4c33-8e9c-c7612fbf6c9f",
    "distinct_id": "string",
    "first_name": "string",
    "last_name": "string",
    "email": "user@example.com",
    "is_email_verified": true,
    "hedgehog_config": {
      "property1": null,
      "property2": null
    },
    "role_at_organization": "engineering"
  },
  "created_at": "2019-08-24T14:15:22Z",
  "updated_at": "2019-08-24T14:15:22Z",
  "deleted": true
}

Delete llm prompts

Hard delete of this model is not allowed. Use a patch API call to set "deleted" to true

Required API key scopes

llm_prompt:write

Path parameters

  • id
    string
  • project_id
    string

Example request

DELETE /api/environments/:project_id/llm_prompts/:id
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl  -X DELETE \
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_prompts/:id/

Example response

Status 405 No response body

Delete llm prompts

Hard delete of this model is not allowed. Use a patch API call to set "deleted" to true

Required API key scopes

llm_prompt:write

Path parameters

  • id
    string
  • project_id
    string

Example request

DELETE /api/environments/:project_id/llm_prompts/:id
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl  -X DELETE \
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_prompts/:id/

Example response

Status 405 No response body

Retrieve llm prompts name

Required API key scopes

llm_prompt:read

Path parameters

  • project_id
    string
  • prompt_name
    string

Response


Example request

GET /api/environments/:project_id/llm_prompts/name/:prompt_name
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl \
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_prompts/name/:prompt_name/

Example response

Status 200
RESPONSE
{
  "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
  "name": "string",
  "prompt": null,
  "version": 0,
  "created_by": {
    "id": 0,
    "uuid": "095be615-a8ad-4c33-8e9c-c7612fbf6c9f",
    "distinct_id": "string",
    "first_name": "string",
    "last_name": "string",
    "email": "user@example.com",
    "is_email_verified": true,
    "hedgehog_config": {
      "property1": null,
      "property2": null
    },
    "role_at_organization": "engineering"
  },
  "created_at": "2019-08-24T14:15:22Z",
  "updated_at": "2019-08-24T14:15:22Z",
  "deleted": true
}

Retrieve llm prompts name

Required API key scopes

llm_prompt:read

Path parameters

  • project_id
    string
  • prompt_name
    string

Response


Example request

GET /api/environments/:project_id/llm_prompts/name/:prompt_name
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl \
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/llm_prompts/name/:prompt_name/

Example response

Status 200
RESPONSE
{
  "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
  "name": "string",
  "prompt": null,
  "version": 0,
  "created_by": {
    "id": 0,
    "uuid": "095be615-a8ad-4c33-8e9c-c7612fbf6c9f",
    "distinct_id": "string",
    "first_name": "string",
    "last_name": "string",
    "email": "user@example.com",
    "is_email_verified": true,
    "hedgehog_config": {
      "property1": null,
      "property2": null
    },
    "role_at_organization": "engineering"
  },
  "created_at": "2019-08-24T14:15:22Z",
  "updated_at": "2019-08-24T14:15:22Z",
  "deleted": true
}

Retrieve logs attributes

Required API key scopes

logs:read

Path parameters

  • project_id
    string

Example request

GET /api/environments/:project_id/logs/attributes
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl \
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/logs/attributes/

Example response

Status 200 No response body

Retrieve logs attributes

Required API key scopes

logs:read

Path parameters

  • project_id
    string

Example request

GET /api/environments/:project_id/logs/attributes
export POSTHOG_PERSONAL_API_KEY=[your personal api key]
curl \
    -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \
    <ph_app_host>/api/environments/:project_id/logs/attributes/

Example response

Status 200 No response body
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