Company Name → Website

Endpoint POST /search/companies with companyName · Credits charged per results returned · Versions v1, v2

Introduction

Send company names and get back each company’s website domain, along with industry, headcount, revenue, and headquarters location so you can confirm the match. Use it to normalize CRM accounts, match trade show lists, and turn company names into domains for other lookups. Tune the matching with companyNameSearchType:

Value	Behavior
`default`	Standard relevance matching
`exact`	Exact company name only. Best for clean lists.
`related`	Also matches subsidiaries, parent companies, and brand aliases

Results are ordered by relevance, so the first row is the best match. When you send several names, read each row’s companyName to pair it with your input.

AI agent prompt

Read https://docs.seamless.ai/llms.txt and https://docs.seamless.ai/api-catalog/company-name-to-website.
Using my Seamless.AI API key from SEAMLESS_API_KEY, for each company name in my list call
POST https://api.seamless.ai/api/client/v1/search/companies with
{"companyName": [<name>], "companyNameSearchType": "exact", "limit": 1}
and return a table of name -> domain, industry, companySize, city, state.

Authentication

Send your API key in the Token header, or Authorization: Bearer <token> with OAuth. Create a key under Settings → Public API.

Example

curl -X POST https://api.seamless.ai/api/client/v1/search/companies \
  -H "Token: $SEAMLESS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "companyName": ["Hotels Combined"], "companyNameSearchType": "exact", "limit": 1 }'

import os, requests

def name_to_website(name):
    rows = requests.post(
        "https://api.seamless.ai/api/client/v1/search/companies",
        headers={"Token": os.environ["SEAMLESS_API_KEY"]},
        json={"companyName": [name], "companyNameSearchType": "exact", "limit": 1},
    ).json()["data"]
    return rows[0]["domain"] if rows else None

print(name_to_website("Seamless.AI"))

const resp = await fetch("https://api.seamless.ai/api/client/v1/search/companies", {
  method: "POST",
  headers: { Token: process.env.SEAMLESS_API_KEY, "Content-Type": "application/json" },
  body: JSON.stringify({ companyName: ["Seamless.AI"], companyNameSearchType: "exact", limit: 1 }),
});
const domain = (await resp.json()).data[0]?.domain;

Reference

Parameter	Type	Required	Description
`companyName`	string[]	Yes	Up to 100 company names
`companyNameSearchType`	string	No	`default`, `exact`, or `related`. Default `default`.
`companyCountry` / `companyState`	string[]	No	Narrow ambiguous names to a country or state
`limit`	integer	No	Rows to return. Use `1` for the best match per name.

Response

Field	Description
`domain`	Primary website domain
`companyName`	Canonical company name
`industries`, `companySize`, `companyRevenue`	Firmographics to confirm the match
`city`, `state`, `country`	Headquarters location
`liUrl`	LinkedIn company page
`searchResultId`	Pass to Company Research for the full record

Errors

Status	Meaning
`400`	Invalid request, such as more than 100 names
`401`	Missing or invalid API key
`422`	`insufficientCredits` or `missingLicense`
`429`	Rate limit reached

Catalog

Identity resolution

Search

Contact Search filters

Company Search filters

Research

My data

Platform

Coming soon

Company Name → Website

Introduction

AI agent prompt

Authentication

Example

Reference

Response

Errors

​Introduction

​AI agent prompt

​Authentication

​Example

​Reference

​Response

​Errors

​Related

Introduction

AI agent prompt

Authentication

Example

Reference

Response

Errors

Related