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POST
/
intents
/
accounts
/
lookalikes
Find company lookalikes
curl --request POST \
  --url https://app.prontohq.com/api/v2/intents/accounts/lookalikes \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --data '
{
  "webhook_url": "https://your-company.com/webhooks/lookalikes",
  "company_linkedin_url": "https://www.linkedin.com/company/acme-corp",
  "company_linkedin_urls": [
    "https://www.linkedin.com/company/acme-corp",
    "https://www.linkedin.com/company/example-inc"
  ],
  "streaming": false,
  "limit": 100,
  "company_size": [
    "51-200",
    "201-500"
  ],
  "included_locations": [
    103644278
  ],
  "excluded_locations": []
}
'
{
  "message": "Lookalike search started successfully. You will receive the results on your webhook shortly.",
  "id": "550e8400-e29b-41d4-a716-446655440000",
  "total": 100,
  "preview": [
    {
      "company_name": "Acme Corp",
      "industry": "Software Development",
      "linkedin_id": "12345",
      "linkedin_url": "https://www.linkedin.com/company/12345"
    }
  ]
}

Documentation Index

Fetch the complete documentation index at: https://docs.prontohq.com/llms.txt

Use this file to discover all available pages before exploring further.

Find companies that look like your target accounts. Send one or more LinkedIn company URLs; the API uses them (up to 3 for keyword generation) to build a lookalike search and delivers results to your webhook. The response includes an import id, total count, and a preview of the first 10 matching companies. You must provide either company_linkedin_url or company_linkedin_urls, plus webhook_url. Optionally filter by company_size, included_locations, and excluded_locations, and cap results with limit.

​
Location IDs Reference

Location IDs used in included_locations and excluded_locations can be retrieved using the Location IDs endpoint. Provide a location name (e.g. “San Francisco”) and the API returns matching locations with their IDs.

Authorizations

​
X-API-KEY
string
header
required

Body

application/json
​
webhook_url
string<uri>
required

URL to receive lookalike results

Example:

"https://your-company.com/webhooks/lookalikes"

​
company_linkedin_url
string<uri>

Single LinkedIn company URL to use as reference (use this or company_linkedin_urls)

Example:

"https://www.linkedin.com/company/acme-corp"

​
company_linkedin_urls
string<uri>[]

LinkedIn company URLs to use as reference, up to 3 used for LLM keyword generation (use this or company_linkedin_url)

Example:
[
  "https://www.linkedin.com/company/acme-corp",
  "https://www.linkedin.com/company/example-inc"
]
​
streaming
boolean

Whether to stream results to the webhook as they are found

Example:

false

​
limit
integer

Maximum number of companies to return

Required range: x >= 1
Example:

100

​
company_size
string[]

Company size range filters (e.g. headcount bands)

Example:
["51-200", "201-500"]
​
included_locations
integer[]

Location IDs to include (use Location IDs endpoint to resolve names)

Example:
[103644278]
​
excluded_locations
integer[]

Location IDs to exclude

Example:
[]

Response

Lookalike search started; results will be sent to the webhook

​
message
string

Confirmation message

Example:

"Lookalike search started successfully. You will receive the results on your webhook shortly."

​
id
string

Unique identifier for the import/search

Example:

"550e8400-e29b-41d4-a716-446655440000"

​
total
integer

Total number of companies that will be processed

Example:

100

​
preview
object[]

First 10 matching companies as a preview