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coldBirds
What coldBirds is
coldBirds is an AI-native cold-email sequencer for agencies and operators. Its Bird assistant can research websites, draft on-brand sequences, rewrite copy, and help triage replies. Campaigns support A/B variants, business-day-aware delays, and timezone-correct sending. The Unibox checks mailboxes every 15 minutes, matches replies by thread, and pauses sequences after a reply. Supported mailbox options include Google, Microsoft 365, Zoho, Proton, iCloud, Yahoo, Azure, and SMTP. coldBirds says it configures SPF, DKIM, and DMARC and provides adaptive warmup, sending throttles, and placement analytics. Contacts are validated on import, deduplicated globally, and permanently suppressed when needed. Analytics include MPP-aware opens, per-sequence and per-mailbox reports, and custom tracking domains. A REST API, typed webhooks, public OpenAPI documentation, and a 40-tool MCP server support automation. It is available through web and API platforms. The Everything plan costs $20 a month; a 15-day trial is available, but there is no free plan.
Who it suits
coldBirds suits agencies and operators running outbound email campaigns. It fits users who need mailbox reply handling, deliverability controls, list hygiene, and automation interfaces.
What it does well
- AI assistant drafts and rewrites sequences
- Detects replies and pauses campaigns
- Supports many mailbox providers
- Includes warmup and placement analytics
- REST API and MCP server available
What to know first
- No free plan
- Sending caps are fair-use per mailbox
- Email is the only outreach channel
- Trial lasts 15 days
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Everything plan | $20/month · Unlimited multi-step sequences · Fair-use per-mailbox sending caps · No per-inbox fees | $20 a month |
As coldbirds.com lists them, read 7 Oct 2026. The maker's own page has the final word.
Verdict
coldBirds combines AI-assisted sequencing with reply detection, mailbox coverage, deliverability settings, and automation APIs. Its paid-only model and fair-use mailbox caps should be weighed against campaign requirements.
Facts from coldBirds's own pages
- AI assistant
- Bird can research a website, draft an on-brand sequence, rewrite copy, and help triage replies. · coldbirds.com, 7 Oct 2026
- Analytics
- Analytics include MPP-aware opens, per-sequence and per-mailbox reports, and custom tracking domains. · coldbirds.com, 7 Oct 2026
- API and automation
- The site lists a REST API, typed webhooks, public OpenAPI documentation, and a 40-tool MCP server. · coldbirds.com, 7 Oct 2026
- Campaigns
- Sequences support A/B variants, business-day-aware delays, and timezone-correct sending. · coldbirds.com, 7 Oct 2026
- Data storage
- The privacy policy says primary customer data is stored on AWS in the ap-south-1 Mumbai region. · coldbirds.com, 7 Oct 2026
- Deliverability
- The service says it configures SPF, DKIM, and DMARC and provides adaptive warmup, sending throttles, and placement analytics. · coldbirds.com, 7 Oct 2026
- Headquarters
- Bikaner, Rajasthan, India · coldbirds.com, 28 Sept 2026
- Intended users
- The site describes the sequencer as built for agencies and operators. · coldbirds.com, 7 Oct 2026
- List hygiene
- Contacts are validated on import, deduplicated globally, and permanently suppressed when needed. · coldbirds.com, 7 Oct 2026
- Mailbox providers
- The site lists Google, Microsoft 365, Zoho, Proton, iCloud, Yahoo, Azure, and any SMTP as supported mailbox options. · coldbirds.com, 7 Oct 2026
- Product
- coldBirds describes itself as an AI-native cold-email sequencer for agencies and operators. · coldbirds.com, 7 Oct 2026
- Reply management
- The Unibox scans mailboxes every 15 minutes, matches replies by thread, and pauses a sequence when someone replies. · coldbirds.com, 7 Oct 2026
- Security
- The privacy policy says data in transit is encrypted with TLS 1.2 or higher and data at rest with AES-256. · coldbirds.com, 7 Oct 2026
- Support
- The site lists [email protected] and [email protected] as contact addresses. · coldbirds.com, 7 Oct 2026
Where coldBirds stands on Freedom251
- Email Outreach Software#12 of 34