instantly-api

Instantly API

Create campaigns, load leads, and pull analytics in Instantly via ColdIQ's resold Instantly endpoints /v1/instantly/* (Instantly v2 paths preserved, one ColdIQ key; BYOK — connect your own Instantly account, free, no ColdIQ credits).

ColdIQ Marketplace Endpoints

Task	Method	Path	Credits	Endpoint ID	Notes
Create campaign	POST	/v1/instantly/campaigns	free	instantly.campaigns.create	Use ColdIQ defaults
List campaigns	GET	/v1/instantly/campaigns	free	instantly.campaigns.list	filter by status
Get campaign	GET	/v1/instantly/campaigns/{id}	free	instantly.campaigns.get	verify sequences
Update campaign	PATCH	/v1/instantly/campaigns/{id}	free	instantly.campaigns.patch	partial
Activate campaign	POST	/v1/instantly/campaigns/{id}/activate	free	instantly.campaigns.activate	empty body {}; confirm with user
Pause campaign	POST	/v1/instantly/campaigns/{id}/pause	free	instantly.campaigns.pause	empty body {}
Add single lead	POST	/v1/instantly/leads	free	instantly.leads.create	use campaign, not campaign_id
Bulk add leads	POST	/v1/instantly/leads/add	free	instantly.leads.add
List leads	POST	/v1/instantly/leads/list	free	instantly.leads.list	GET /leads 404s
Campaign analytics	GET	/v1/instantly/campaigns/analytics	free	instantly.campaigns.analytics	reply/open/bounce
Daily analytics	GET	/v1/instantly/campaigns/analytics/daily	free	instantly.campaigns.analytics.daily	per-day
Verify email	POST	/v1/instantly/email-verification	free	instantly.email_verification.create

Recommended Campaign Settings

Deliverability-first baseline for every new campaign:

{
  "email_gap": 15, "random_wait_max": 7, "text_only": true, "first_email_text_only": true,
  "daily_limit": 9999, "stop_on_reply": true, "match_lead_esp": true,
  "link_tracking": false, "open_tracking": false,
  "campaign_schedule": { "schedules": [{ "name": "Weekday schedule",
    "timing": { "from": "08:00", "to": "14:00" },
    "days": { "1": true, "2": true, "3": true, "4": true, "5": false },
    "timezone": "America/Detroit" }] }
}

text_only, no link/open tracking, and ESP matching all maximize deliverability.

Gotchas (read first)

1. Timezone: use America/Detroit, NOT America/New_York (Instantly rejects New_York).
2. Schedule days: zero-indexed from Sunday (0=Sun … 6=Sat).
3. Activate/Pause: send an empty JSON body {}.
4. Delete lead: send NO body and NO Content-Type header.
5. List leads: use POST /v1/instantly/leads/list (GET returns 404).
6. Lead field name: use campaign (UUID), NOT campaign_id — the wrong key silently adds leads to the org pool without linking them to the campaign.
7. HTML escaping: > in the body must be > (e.g. "Predictable > random").
8. Lead dedup: leads dedup across campaigns by default; set skip_if_in_campaign: false to force-add.

HTML email formatting

Even with text_only: true, Instantly stores HTML <div>s. Every line in its own <div>; blank lines <div><br /></div>; no <p>; HTML-encode >/<; signature <div>{{accountSignature}}</div>.

import html
def to_instantly_html(plain):
    return ''.join('<div><br /></div>' if not l.strip() else f'<div>{html.escape(l.strip())}</div>'
                   for l in plain.strip().split('\n'))

Variables

Core (auto from lead): {{firstName}}, {{lastName}}, {{companyName}}, {{email}}, {{website}}, {{personalization}}, {{accountSignature}}. Custom: any key in the lead payload becomes {{key}} (e.g. {{Idea1}}, {{Idea2}}, {{Idea3}}, {{SL}}). Spintax: {{RANDOM|Hey|Hi|Hello}} {{firstName}},.

Workflows

Full campaign launch

1. Create the campaign with ColdIQ defaults + sequences. → POST /v1/instantly/campaigns · free · instantly.campaigns.create
2. Add leads with payload variables (loop or bulk). → POST /v1/instantly/leads · free · instantly.leads.create

   { "campaign": "campaign-uuid", "email": "[email protected]", "first_name": "John",
     "company_name": "Acme", "payload": { "Idea1": "...", "Idea2": "...", "Idea3": "..." } }
   

3. Verify the sequences look right. → GET /v1/instantly/campaigns/{id} · free · instantly.campaigns.get
4. Connect sending accounts (Instantly UI), then activate — always confirm with the user first. → POST /v1/instantly/campaigns/{id}/activate · free · instantly.campaigns.activate

Performance check

1. Aggregate stats. → GET /v1/instantly/campaigns/analytics · free · instantly.campaigns.analytics
2. Daily trend. → GET /v1/instantly/campaigns/analytics/daily · free · instantly.campaigns.analytics.daily

Benchmarks

Metric	Kill	Keep	Scale
Positive reply rate	<1%	2–5%	>5%
Emails per positive reply	>5,000	1,000–3,000	<1,000
Meeting book rate	<0.5%	1–2%	>2%

A reliable top performer: 3 AI-generated campaign ideas ({{Idea1}}/{{Idea2}}/{{Idea3}}) as the personalization payload. After 200+ sends/variant: kill <1% reply, branch top 2–3 winners (70/20/10 winners/iterations/experiments).