Company enrichment API
one cited record per domain

The numbers

The price is read from our live price list each time this page renders.

Price per company

$0.02

Building, several matches and unknown are free.

Fields per record

8

Each one with its source and whether it is stated or inferred.

New domain to record

~30 s

Any domain, even one we have never seen.

Fresher records

93 / 93

Ours was the more recent read on every company both APIs returned.

More filled fields than a leading company-data API

We ran both APIs on the same 100 company domains on 2026-11-04 and counted, field by field, how often each returned a value. Domains came from published funding announcements.

• Fresher. On all 93 companies both APIs returned, our record was read more recently.
• Funding most of all. Funding rounds are complete from 2026-10-01, and each one links to where it was announced. The rows themselves come from the funding data API.
• What we left out. Headquarters is the one field where the other API returned more often, so it is not in this table and we do not claim it.

What a company record carries

Eight fields, each as a value, the source it came from and whether a page states it or we inferred it. The full schema is on the company profiles docs.

Every field names its source

Most enrichment APIs return a value and ask you to trust it. Here each field points into the record's sources list, with the URL and the time it was read, so a rep or an agent can quote it and a data team can audit it.

• The company's own website. Its home, about and careers pages, including the structured data many sites publish.
• Its public LinkedIn company page. Read only when the company's own site links to it, so we never attach the wrong company.
• SEC Form D filings. The filing a US company makes when it raises money, which also states when it was founded.
• Our funding rounds data. Rounds read from announcements, each with the URL it was published at.

A field no source supports comes back null. We never fill a gap with a guess, and basis tells you when a value is our classification rather than the company's own statement.

Your first request

One company by domain. This example shows a fictional company.

curl https://api.prospectapis.com/v1/companies/acme.com \
  -H "Authorization: Bearer $PROSPECTAPIS_KEY"

{
  "data": {
    "company_id": "c3f1...",
    "domain": "acme.com",
    "name": "Acme Robotics",
    "description": { "value": "Warehouse picking robots for 3PLs", "source": 1, "basis": "stated" },
    "hq": { "value": { "country": "US", "region": "CA", "city": "Oakland" }, "source": 2, "basis": "stated" },
    "founded_year": { "value": 2021, "source": 2, "basis": "stated" },
    "industry": { "value": { "label": "Hardware & IoT", "sector": "hardware_iot" }, "source": 1, "basis": "inferred" },
    "employee_band": { "value": "11-50", "source": 3, "basis": "stated" },
    "social": { "value": { "x": "https://x.com/acme", "linkedin": "https://www.linkedin.com/company/acme" }, "source": 1, "basis": "stated" },
    "funding": { "raised_in_rounds_we_hold_usd": 12000000, "rounds_count": 2 },
    "hiring": null,
    "sources": [
      { "id": 1, "url": "https://acme.com/", "kind": "site", "retrieved_at": "2026-10-31T09:12:00Z" },
      { "id": 2, "url": "https://acme.com/about", "kind": "site", "retrieved_at": "2026-10-31T09:12:04Z" },
      { "id": 3, "url": "https://acme.com/careers", "kind": "site", "retrieved_at": "2026-10-31T09:12:07Z" }
    ]
  }
}

A domain we have not built yet answers like this, at no cost. Call again after the wait:

HTTP/1.1 202 Accepted
{ "status": "building", "retry_after": 30 }

Or look a company up by its exact name:

curl "https://api.prospectapis.com/v1/companies/Acme%20Robotics" \
  -H "Authorization: Bearer $PROSPECTAPIS_KEY"

Every answer, and what it costs

You pay only for a company returned. Everything else is free.

How teams use it

1. 1

   Fill the CRM

   Send the domain from a new account or a sign-up email and write back the description, industry, size and socials, with the source beside each value.

2. 2

   Route inbound leads

   Use the employee band, industry and last funding round to decide which rep or sequence a new lead goes to, the moment it arrives.

3. 3

   Give an agent the facts

   Let a research or outreach agent read a cited record before it writes, then pull the founder's profile with a people read and check the address with the email verifier. Our guide to researching prospects with an AI agent shows the whole flow.

Routes and prices

Prices come from GET /pricing. A route marked launching soon is not on sale and charges nothing. Every product is on the pricing page.

Proof you can check yourself

No borrowed logos and no quotes we wrote ourselves. These are figures about the API and MCP server the company routes ship on, each linked to the place it was read.

Questions

What is a company enrichment API?

An API that takes something you already have about a company, usually its domain, and returns what you do not: what it does, where it is based, when it was founded, its industry, its size, its social profiles and its funding. Teams use it to fill CRM records, route inbound leads and give AI agents facts about an account.

How much does it cost?

$0.02 per company returned, from a prepaid balance. A record that is still building, a name with several matches and an unknown domain or name are free. Every account starts with a free $1 balance, and there is no seat, contract or monthly minimum.

What happens with a domain you have never seen?

We do not answer with an empty record. The API replies 202 building, free, and builds the record from the company's public pages. It is usually ready about 30 seconds later, so you call again and get the full record.

Can I look a company up by name instead of domain?

Yes, by its exact name. One match answers exactly as its domain would. When several companies share the name the API replies 300 with each name and domain so you can pick one, and an unknown name replies 404. Both are free, and an ambiguous name is never guessed.

Where does the data come from?

The company's own website, its public LinkedIn company page when the site links to it, SEC Form D filings and our funding rounds data. Each field names the source it was read from and whether a page states it or we inferred it, so you can keep stated values only.

How does it compare with other company data APIs?

On 100 company domains measured on 2026-11-04 against a leading company-data API, we returned more of every field in the table on this page, funding rounds most of all, and our record was the more recent one on all 93 companies both APIs returned. Headquarters is the one field where we returned less, so we do not claim it.

Is a company data API the same as a company information API?

Mostly, yes. Both names describe an API that returns facts about a company. Some company information APIs read official registers, which give legal names and filing numbers; this one reads what a company publishes about itself plus its funding, which is what sales and marketing teams need.

Can an AI agent use it?

Yes. The ProspectAPIs MCP server exposes company_get and company_funding on the same key and balance, and any agent that can send an HTTP request can call the routes directly.