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Connecting Close

Close uses simple API keys (starting with api_). Paste one in and contacts auto-flow to Close as Leads.

3 min read Updated June 2026

Close is a sales-team CRM with a clean API. Connecting is one paste.

Before you start

  • Close plan with API access (all paid plans).

Step 1 — Generate your Close API key

1

In Close, click your profile avatar (top right) → Settings.

2

Go to the Your API Keys section.

3

Click + New API Key. Give it a name like "Anexus Connect". Copy the key — it starts with api_ and is about 30 characters total.

Step 2 — Paste it into Anexus

1

In Anexus, Settings → CRM Integrations → Close → Connect.

2

Paste the API key. Click Save & connect.

What syncs to Close

Close's data model nests contacts inside Leads (a Lead is roughly "the company / opportunity," a Contact is the person at that lead). Each captured Anexus contact becomes:

  • A new Lead named after their company (or their name if no company)
  • A Contact nested inside the Lead with their name, email (type: office), phone (type: office), and title

If something goes wrong

"Close API keys start with api_"

The key you pasted doesn't start with api_ — it's probably a Close password, not an API key. Re-copy from Settings → Your API Keys.

Leads grouping the wrong way

If multiple Anexus contacts have the same company name, they end up as separate Leads (each with their own contact nested inside). Close doesn't auto-merge by company. If you want them grouped, do that manually in Close after the fact.

How to disconnect

Click Disconnect in Anexus. To revoke on Close's side: Settings → Your API Keys → Delete the "Anexus Connect" key.

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