Vendors API
See which vendors list a company as their customer. Each row has the public page that shows it.
200 free credits with a work e-mail. No credit card required.

What you get
- Vendor names and domains
- The public page that shows the relationship
- A verified status for each vendor domain
- A short card for each vendor: industry, size and country
One call
curl -G https://api.innerfetch.com/api/v1/company/vendors \
-d domain=openai.com \
-H "X-API-Key: $INNERFETCH_API_KEY"vendors[0].name: "Clay"
vendors[0].domain: "clay.com"
vendors[0].evidence.url: "https://www.clay.com/customers"
vendors[0].domain_status: "verified"
vendors[1].name: "Notion"
vendors[1].domain: "notion.com"
vendors[1].evidence.url: "https://www.notion.com/customers"
vendors[1].card.industry: "Software"What it costs
- Vendor row: 2 credits a row, +1 a call
- Calls that fail on our side and queued calls are free
What teams use it for
Find replacement deals
List the accounts that use the tool you replace.
Know the stack before you pitch
See what a prospect already pays for.
Find partners
Spot tools that share your customers.
Vendors API, answered
What does a vendor list cost?
Credits: 1 + 2 per vendor returned, at most 401 a page. Free when: 404 not_in_graph, an empty list held back because the company's domain is not verified.
How is this different from a tech stack list?
The company profile has a tech stack. The vendor list shows business relationships that a public page names, each with the link to that page.
Do I pay when a call fails?
No. A call that fails on our side is free, and so is a queued call. Every answer shows its cost in the X-Credits-Cost header.
How it compares
Innerfetch API vs ZoomInfo
Self-serve credits at $0.38 each at list price. Strong on contacts and intent.
Innerfetch API vs Clearbit
Now a HubSpot feature. Its free tools and Logo API are retired.
Innerfetch API vs Apollo
A sales platform with an API. Per-seat plans; credit price not published.
Try it on a company you know
Start with 200 free credits. Sign up with a work e-mail.