Identify visiting companies

Company Reveal Launcher

curl --request POST \
  --url https://api.waterfall.io/v1/company-reveal \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "ip": "8.8.8.8"
}
'

import requests

url = "https://api.waterfall.io/v1/company-reveal"

payload = { "ip": "8.8.8.8" }
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({ip: '8.8.8.8'})
};

fetch('https://api.waterfall.io/v1/company-reveal', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.waterfall.io/v1/company-reveal",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'ip' => '8.8.8.8'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.waterfall.io/v1/company-reveal"

	payload := strings.NewReader("{\n  \"ip\": \"8.8.8.8\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("x-api-key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.waterfall.io/v1/company-reveal")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"ip\": \"8.8.8.8\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.waterfall.io/v1/company-reveal")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"ip\": \"8.8.8.8\"\n}"

response = http.request(request)
puts response.read_body

{
  "status": "SUCCEEDED",
  "start_date": "2026-03-07T10:00:00.000000+00:00",
  "stop_date": "2026-03-07T10:00:00.300000+00:00",
  "input": {
    "task": {
      "ip": "8.8.8.8",
      "webhook_url": null,
      "custom_fields": {},
      "job_id": "b7e4648f-4f15-4f2f-9d09-7af635ce6c24",
      "context_id": "b7e4648f-4f15-4f2f-9d09-7af635ce6c24"
    }
  },
  "output": {
    "ip": "8.8.8.8",
    "type": "company",
    "confidence_score": "high",
    "ip_geo": {
      "city": "San Francisco",
      "state": "California",
      "country": "United States"
    },
    "company": {
      "id": "54fa90d8-7ba7-4b6d-b5ec-82ee3e184166",
      "domain": "stripe.com",
      "name": "Stripe",
      "website": "stripe.com",
      "linkedin_id": "stripe",
      "description": "Stripe is a financial infrastructure platform for businesses.",
      "logo_url": null,
      "size": "5001-10000",
      "employees_count": 8000,
      "industry": "Financial Services",
      "type": "Privately Held",
      "founded": 2010,
      "address": "354 Oyster Point Blvd, South San Francisco, California 94080, US",
      "country": "United States",
      "linkedin_url": "https://www.linkedin.com/company/stripe/",
      "linkedin_followers": 1500000,
      "crunchbase_url": "https://www.crunchbase.com/organization/stripe",
      "funding_details": {
        "total_funding_rounds": 0,
        "total_funding_usd": 0,
        "funding_rounds": []
      },
      "recent_job_posting_count": 0,
      "technologies": []
    },
    "usage": {
      "total_usd": 0.07,
      "balance_remaining_usd": 99.93,
      "persons_count": 0,
      "persons_usd": 0,
      "phones_count": 0,
      "phones_usd": 0,
      "companies_count": 1,
      "companies_usd": 0.07
    }
  }
}

POST

company-reveal

Company Reveal Launcher

curl --request POST \
  --url https://api.waterfall.io/v1/company-reveal \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "ip": "8.8.8.8"
}
'

import requests

url = "https://api.waterfall.io/v1/company-reveal"

payload = { "ip": "8.8.8.8" }
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({ip: '8.8.8.8'})
};

fetch('https://api.waterfall.io/v1/company-reveal', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.waterfall.io/v1/company-reveal",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'ip' => '8.8.8.8'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.waterfall.io/v1/company-reveal"

	payload := strings.NewReader("{\n  \"ip\": \"8.8.8.8\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("x-api-key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.waterfall.io/v1/company-reveal")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"ip\": \"8.8.8.8\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.waterfall.io/v1/company-reveal")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"ip\": \"8.8.8.8\"\n}"

response = http.request(request)
puts response.read_body

{
  "status": "SUCCEEDED",
  "start_date": "2026-03-07T10:00:00.000000+00:00",
  "stop_date": "2026-03-07T10:00:00.300000+00:00",
  "input": {
    "task": {
      "ip": "8.8.8.8",
      "webhook_url": null,
      "custom_fields": {},
      "job_id": "b7e4648f-4f15-4f2f-9d09-7af635ce6c24",
      "context_id": "b7e4648f-4f15-4f2f-9d09-7af635ce6c24"
    }
  },
  "output": {
    "ip": "8.8.8.8",
    "type": "company",
    "confidence_score": "high",
    "ip_geo": {
      "city": "San Francisco",
      "state": "California",
      "country": "United States"
    },
    "company": {
      "id": "54fa90d8-7ba7-4b6d-b5ec-82ee3e184166",
      "domain": "stripe.com",
      "name": "Stripe",
      "website": "stripe.com",
      "linkedin_id": "stripe",
      "description": "Stripe is a financial infrastructure platform for businesses.",
      "logo_url": null,
      "size": "5001-10000",
      "employees_count": 8000,
      "industry": "Financial Services",
      "type": "Privately Held",
      "founded": 2010,
      "address": "354 Oyster Point Blvd, South San Francisco, California 94080, US",
      "country": "United States",
      "linkedin_url": "https://www.linkedin.com/company/stripe/",
      "linkedin_followers": 1500000,
      "crunchbase_url": "https://www.crunchbase.com/organization/stripe",
      "funding_details": {
        "total_funding_rounds": 0,
        "total_funding_usd": 0,
        "funding_rounds": []
      },
      "recent_job_posting_count": 0,
      "technologies": []
    },
    "usage": {
      "total_usd": 0.07,
      "balance_remaining_usd": 99.93,
      "persons_count": 0,
      "persons_usd": 0,
      "phones_count": 0,
      "phones_usd": 0,
      "companies_count": 1,
      "companies_usd": 0.07
    }
  }
}

A company may explore your API documentation before anyone signs up. Send a visitor IPv4 address to look for a company match, then use the returned domain in your account workflow.

Company Reveal is currently in beta. It helps identify the company behind a visit, rather than the individual visitor.

{
  "ip": "203.0.113.42",
  "custom_fields": {
    "session_id": "session_1042",
    "page_path": "/docs/quickstart",
    "source": "api-docs"
  }
}

The IP above is reserved for documentation; replace it with the visitor IP from your own trusted request or analytics pipeline. The endpoint does not install a tracker or collect visits for you. page_path is metadata, not an input to company matching.

Read the result

Results are returned synchronously. Inspect output.company, output.type, and output.confidence_score. Available confidence values are very_high, high, medium, low, or null. A missing company, an ISP classification, or a low-confidence result should not be treated as a confirmed account visit. Decide which matches are useful for your workflow.

Evaluate your paid traffic

Keep UTM source, medium, campaign, and page path in custom_fields. Your integration can join company matches to campaign spend and conversions, so you can compare which channels bring identifiable accounts that fit your market. This can help you investigate wasted spend and refine targeting. Compare company-match rates too: unknown visitors are not automatically low-quality traffic, and matching coverage may differ by channel or region. Build the traffic-quality workflow →

Explore the account

When a company domain is available:

Enrich the account for more company context.
Find relevant people using your department, seniority, or title criteria.

Those people are contacts at the matched company. They are not identified as the people who visited your site.

Authorizations

x-api-key

string

header

required

To access the API, provide your API key in x-api-key.

Body

application/json

Company Reveal request payload.

Request payload for Company Reveal.

string<ipv4>

required

Example:

"8.8.8.8"

webhook_url

string<uri> | null

Optional webhook callback URL. If supplied, Waterfall POSTs the same payload returned by the Finder endpoint when processing completes. If your webhook responds with 429, 500, 502, or 504, Waterfall retries delivery up to 5 times with exponential backoff. Waterfall includes X-Webhook-Signature containing a compact JWT when webhook signing configuration is available. The JWT protected header contains alg: "EdDSA", kid, and typ: "JWT". Its claims contain iat, exp, jti, job_id, body_hash, and body_hash_alg: "sha-256". body_hash is the unpadded base64url-encoded SHA-256 digest of the exact raw request body bytes. The JSON body is unchanged by signing. Signatures expire exactly 15 minutes after iat; receivers should reject expired signatures. If signing configuration is unavailable or invalid, Waterfall preserves backward compatibility by sending the callback unsigned without X-Webhook-Signature.

Maximum string length: 2083

Example:

"https://example.com/webhook"

custom_fields

object | null

Optional custom key-value metadata echoed on job input and output (useful for correlating internal source metadata). On create requests, omit the field or send JSON null when no custom fields are needed; both are stored as {}. When present, the value must be a JSON object with keys matching ^[A-Za-z0-9_-]+$ and values that are a string (max 1000 characters), number, or boolean. Empty string, arrays, and other non-object types return HTTP 400. On job GET responses, input.task.custom_fields is always an object ({} or populated).

Example:

{
  "tenantId": "0e9d26b7-cdb5-4d95-b248-59ac389d2e8a",
  "workflowId": "ProspectFromWaterfall:23ed5bc8-a976-4ee0-b644-f0eb2db6e3ad:c268355e-a256-4593-a216-009a2463cee4",
  "waterfallRequestId": "1b49c542-f47a-406b-a95f-a1859d1461af"
}

Response

Company Reveal result returned successfully.

Company Reveal response with synchronous job envelope and output.

status

enum<string>

required

The status of the job.

Available options:

RUNNING,

SUCCEEDED,

FAILED,

TIMED_OUT,

ABORTED

Example:

"RUNNING"

start_date

string<date-time>

required

A date time in ISO 8601 format.

Example:

"2025-02-05T15:46:35.771751+00:00"

input

object

required

Show child attributes

stop_date

string<date-time>

A date time in ISO 8601 format.

Example:

"2025-02-05T15:46:35.771751+00:00"

output

object

Company Reveal output payload.

Show child attributes

Start here

Use cases

Signups & accounts

Find your buying team

Visitors & existing users

Monitoring

Integration essentials

Read the result

Evaluate your paid traffic

Explore the account

Authorizations

Body

Response

​Read the result

​Evaluate your paid traffic

​Explore the account

Authorizations

Body

Response

Read the result

Evaluate your paid traffic

Explore the account