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Cheapinboxes.com

Cold outreach inboxes, priced to scale

Deliverability
For AI agents
MCPAPINative readiness
About

What is Cheapinboxes.com

CheapInboxes provisions Google and Microsoft mailboxes for cold email outreach, handling DNS configuration automatically so users don't have to touch records manually. It's built for SDRs, BDRs, and founders who need to spin up outreach infrastructure fast without paying enterprise-tier hosting rates. The standout capability is the built-in calculator: enter your outreach volume targets and it tells you exactly how many domains and mailboxes you need, plus the total monthly cost before you commit. Bulk ordering keeps per-inbox costs down as you scale, with pricing dropping below $2.80 per mailbox at volume. Where it stops being a fit is depth — this is basic email hosting, not a deliverability monitoring or warming platform, so teams needing inbox health analytics or warm-up automation will need to layer in separate tooling.

Deliverability
Capabilities

Key features

Deliverability infrastructure

warmup, spam tests, and sender reputation

Outbound webhooks

event-driven integrations

Our verdict

Vanderbuild take

For solo operators and small teams who need cold email infrastructure without the overhead, CheapInboxes is a straightforward provisioning layer — it does one thing (get you inboxes) and prices it honestly for SDRs and founders who are watching burn. The agentic story here is real: native MCP server support means your AI agents can call inbox provisioning directly, making this a practical orchestration component in an automated outbound stack rather than just a manual admin task. At budget tier 1, the cost-to-test is low — near-free to validate at small scale before committing to volume. The honest limitation is that it stops at provisioning: there's no inbox warming, deliverability scoring, or send-health monitoring built in, so you'll need separate tooling to keep those inboxes out of spam folders once they're live.

Mateusz Sekta
Founder, vanderbuild
Learn more

Our Resources

The wedge

Agentic stack profile

MCP server
Yes

Live MCP server — agents can call this tool directly.

Allows AI agents to provision email infrastructure, manage DNS, and swap sequencers without human intervention.

Open MCP →
API
REST

Programmatic access available.

REST API — straightforward to call from any agent or workflow tool. Rate limits and auth vary by plan.

API docs →
Agentic readiness
Native

Built for agents from the ground up.

MCP server + agent-friendly API + at least one autonomous workflow out of the box. The bar for 'Native' is high — only a handful of tools currently qualify.

Stack role
Deliverability

Where this tool slots into an agentic pipeline.

Plays the role of Deliverability in an agentic pipeline. Use it to keep email sending reputation healthy — warmup, spam tests.

Compare

Cheapinboxes.com alternatives

Tools that solve a similar problem — compared at a glance.

Cheapinboxes.com(this tool)
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Seat-based
Budget
$
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Readiness
Native
MCP
Yes
API
REST
Primeforge
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Readiness
Native
MCP
Yes
API
REST
winnr
Pricing
Seat-based
Budget
$$
Best for
GTM Engineer, Founder
Readiness
Native
MCP
Yes
API
REST
Answers

Frequently asked questions

Does Cheapinboxes.com have an MCP server?

Yes — Cheapinboxes.com exposes a Model Context Protocol server. Allows AI agents to provision email infrastructure, manage DNS, and swap sequencers without human intervention. See the MCP docs at https://api.cheapinboxes.com/mcp.

Does Cheapinboxes.com have a public API?

Yes — Cheapinboxes.com ships a REST API. Docs: https://api.cheapinboxes.com/docs.

How much does Cheapinboxes.com cost?

Cheapinboxes.com: pricing is seat-based, expect entry tier ($) spend. Full pricing page: https://www.cheapinboxes.com/calculator.

Who is Cheapinboxes.com best for?

Cheapinboxes.com is built for SDR / BDR, Founder. Fits Solo, SMB (1-50)-sized teams.

How well does Cheapinboxes.com fit an agentic sales stack?

Tier: Native. Has both an MCP server and an agent-friendly API — drops into an agentic stack with minimal glue code.