MCP-native · source-backed · BYO
Provably source-backed cold email an agent runs for you.
coldio is an MCP-native, developer-first cold-email AI for B2B outbound. It drafts the sales brain, personalizes deeply, and handles replies — grounded in 235 methodology docs and source-backed skills, with the proof shown on every generation.
No prewarmed inboxes. Bring your own sender, domain, and data.
235
cold-email methodology docs grounding every draft
~37
MCP tools an external agent can drive
BYO
your sender, domain, and data — never resold
0
spammy tactics — plain-text, compliant by default
Only the hardest segment — done well
A focused wedge, not a sprawling suite: the agent does the work that books meetings, on infrastructure you already trust.
MCP-native, developer-first
A Claude-Code / MCP-native agent workflow. ~37 tools let an external agent run campaigns, sequences, replies, and the pipeline — your editor is the control plane.
Provably source-backed
Every generation is grounded in source-backed skills and a 235-doc methodology corpus — and we show you exactly which sources and skills drove each draft.
Deliverability-safe by default
BYO sender with readiness gates, plain-text copy, one-click unsubscribe, suppression, and automatic high-bounce pause. Compliance is built in, not bolted on.
The hardest part, done
Sales brain, deep personalization, and reply handling — the work that actually books meetings. Not another full-suite Instantly clone.
One operational loop
From first campaign to booked pipeline — gated, compliant, and fully traceable.
Step 1
Campaigns
Launch-readiness blockers replace guesswork.
Step 2
Sequences
Grounded A/Z variants, gated preview before queue.
Step 3
Replies
Classified, stop-contact-safe, sequence-aware.
Step 4
Opportunities
Positive replies become tracked pipeline.
Let an agent run grounded, compliant outbound.
Source-backed every time BYO sender + compliance MCP-native control
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