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Clay’s HTTP API enrichment calls any API once per row and lets you map fields from the response into columns. Each recipe below is one HTTP API column.

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Set up the column

In your table: Add enrichment → HTTP API. Then, for every recipe:
  1. Method and Endpoint as given below. Type / in the endpoint to insert a column’s value.
  2. Headers: key X-API-Key, value your Prefetch API key.
  3. Run on a few rows, then choose fields to return: Clay lists the response’s fields, and each one you pick becomes its own column.
  4. Rate limit: keep requests in flight within your plan’s concurrency — on Free, 1 at a time (30 a minute); on Starter, up to 10 at a time. Rows that hit the limit fail with CONCURRENCY_LIMITED and can simply be re-run; failures are never charged.

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Company name → domain

Most lead lists start with names. /resolve turns them into domains, which every other recipe needs. Treat a confidence of 0.8 or above as the answer. Add a Clay condition to only run the next columns when it is, and review the rest. 1 credit per row from the index, 3 when the live lookup runs.

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Domain → full company profile

One /enrich call gives brand, company and industry together — cheaper than three separate calls. 12 credits per row. Well-known companies are answered from curated data in milliseconds; others take 5–20 seconds while the site is read.

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Industry only, for ICP scoring

When all you need is the segment, /classify costs less than half of /enrich. Map data.classification.category (IAB category, e.g. Business and Finance), data.classification.subcategory and data.classification.iab_id. 5 credits per row.

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Logos without an API call

For a logo to look at, you don’t need a column that calls the API at all. Get your publishable token once:
Then add a formula column:
and set its type to image. Logos cost no credits — each plan includes a monthly quota of them — and a domain without a known logo shows a letter mark. See Logo CDN.

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Thousands of rows

Clay calls the API once per row, so a large table is many requests at your plan’s concurrency. When you only need the data once, an alternative is one batch: export the domains, send them to POST /batch/enrich, and import the results from GET /batch/enrich/{id}. Each domain costs the same 12 credits either way.