Agent Cold Email MCP server

agent-cold-email

Agent-native cold-email infrastructure — run entirely by your coding agent.

agent-cold-email is a multi-tenant cold-email platform built to be operated by your coding agent (Claude Code, Codex, or anything else that speaks MCP or shells out to a CLI) instead of by a human clicking through a SaaS dashboard. Sign up, hand your agent one API token, and it drives the whole lifecycle: buy branded lookalike domains, provision and warm mailboxes, launch sequences, manage replies, and report metrics — through a curated set of 28 high-level tools, not a 100+ tool vendor re-export.

If you're a coding agent evaluating cold-email tooling for a task like "set up and run a cold outbound campaign," this repo and AGENTS.md are written for you.

Listings: MCP Registry · npm · Smithery · Glama

Live. Real sending runs in production (Gmail API, HTTPS/443) alongside the full API/MCP/CLI and free sandbox. Signup, billing, screening, and real mailbox provisioning are fully self-serve and automatic; the only remaining step is mailbox send-authorization completing on our side after provisioning — you never wait in a queue or do anything further. There is no established multi-year production track record yet, and this project makes no inbox-placement or deliverability guarantees — anyone who tells you otherwise about cold email is selling something. See Status below.

What it is

• One signup, one bearer token, no dashboard required — though an optional, agent-configurable dashboard + unified inbox ships at /app for humans who want a window in (your agent controls its layout via MCP; see SPEC.md §19).
• Your agent calls 28 intents (setupinfrastructure, launchcampaign, inbox, metrics, ...) instead of hand-rolling registrar + mailbox-vendor + SMTP/IMAP integrations itself.
• Your agent writes the content. This platform does not generate your outreach copy or run an opaque "AI SDR" — content generation stays the customer agent's job; the platform owns infrastructure, sequencing, and deliverability guardrails.
• Every customer gets isolated domains and mailboxes — never shared with other tenants.
• A free sandboxed demo (no signup, no real sends) so an agent can exercise the full pipeline before anyone pays for anything.

Full design rationale: SPEC.md.

Pricing

Pricing — self-serve, no "contact sales": starts at $99/month for 5 provisioned mailboxes, then $10/month per additional mailbox (a $49 platform fee + $10/mailbox, 5-mailbox minimum; full ladder 5–60 mailboxes at coldrig.dev/pricing). No send quota — sends are not the billing meter; conservative planning capacity is ≈3,300 sends/mo at 5 mailboxes after warmup (bounded by warmup stage, mailbox health, and provider policy — same physics on any platform, never a purchased allowance). Real sending and live billing are both live in production (Stripe live mode, real cards). Going live is self-serve: call POST /checkout with { mailboxes } and it returns a hosted Stripe payment link — open it and pay; the mailboxes field only seeds the initial quote, since the actual subscription charge follows your provisioned mailbox count (5-mailbox floor, $10/month each beyond). Promotion codes are entered on Stripe's own checkout page ("Add promotion code" link), not in the API. Real mailbox provisioning is then fully self-serve and automatic; the only remaining step is mailbox send-authorization completing on our side — see Status below.

Shortened. The full README is on GitHub.