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Outbound for developer tools companies

Outbound for developer tools: build account lists from public evidence, write for skeptical engineers, and send only under policies a person approved.

Problem

Write as if the reader will check every claim. Across industries, 0.45% of cold emails get a reply, according to Belkins' 2026 study of 7.5M B2B emails sent in 2025 [[1]](#sources) [[2]](#sources).

Four problems come up for developer-tool teams:

  • Weak account lists. A list built from a headcount filter says nothing about whether a company has the problem your tool solves.
  • Generic messages. Each message should show you looked at the reader's product.
  • A law with no B2B exception. The FTC says of CAN-SPAM: "The law makes no exception for business-to-business email." [[3]](#sources)
  • Platform terms. LinkedIn's User Agreement lists as a don't: "Use bots or other unauthorized automated methods to access the Services, add or download contacts, send or redirect messages" [[4]](#sources).

Both were checked on 2026-10-22. Read them before you choose your channels.

How Outlevo does it

Find accounts from public evidence and signals. Each qualified account gets a Readiness Card with fit, intent and data quality scores. A card needs at least three observations, each with a source and a date [[5]](#sources). Facts read from a website are kept only when their quote is found on the page. Guesses are labelled as hypotheses, never presented as findings [[5]](#sources). A signal check costs 1 credit [[6]](#sources).

Outlevo can also show which companies visit your website and which pages they read. It never identifies a person [[7]](#sources). Competitor tracking adds quoted facts from competitors' public pages and competitor signals on accounts [[8]](#sources).

To see your own ICP first, the free ICP assessment reads up to 5 public pages of your website. It returns facts labelled as verified observations or AI inferences, and up to 5 experimental segment hypotheses [[9]](#sources). Outlevo asks which countries you sell into. It never proposes markets [[10]](#sources). Win/loss analysis counts companies, not deals. Under 10 won companies is labelled very low confidence [[10]](#sources).

Write for a skeptical reader. This part is craft, and it is yours to own. Refer to something the reader can check. Make one ask. Leave out any claim you cannot back up. A Readiness Card lists each observation with its source and date, so you can see where a detail came from before you write about it [[5]](#sources). Outlevo writes and schedules the emails, and Smartlead sends them from your mailboxes [[11]](#sources). For follow-up structure, see sequence.

Keep a person in charge. Outlevo sends nothing outside a policy that a person approved. Policies set who can be contacted, on which channels, how often and with what budget [[12]](#sources). Every external action is checked against the approved policy before it runs, and recorded in a ledger. Kill switches pause a campaign, a channel or the whole workspace at once [[12]](#sources).

Sending has its own gates. Before a Smartlead campaign sends, every mailbox must be connected and warmed up. Its domain must also have SPF, DKIM and DMARC checked in the last 7 days [[11]](#sources). A new managed mailbox sends nothing until it is warm: at least 14 days, usually about 3 weeks [[13]](#sources). More on this under deliverability.

Build with it. Everything in the app is available in the REST API, with a TypeScript SDK and an MCP server [[14]](#sources). Test keys run against a sandbox with 100 fake companies, send nothing and are not charged [[15]](#sources). See the Companies API and the sandbox, MCP server and SDK post.

Proof

We have no customer numbers to quote, so here is what you can check yourself.

  • The Free plan costs USD 0 per month. Builder is USD 29 per month with 320 credits. Growth is USD 149 per month with 1650 credits [[6]](#sources).
  • Contact discovery costs 4 credits [[6]](#sources). Connecting and syncing a CRM uses no credits [[16]](#sources).
  • Email addresses and other personal data are encrypted at the field level. Staff support access is read-only, time-limited and logged [[17]](#sources).

Next step

Run the free ICP assessment on your own site and see which segments it proposes. Then open the developer hub, create a test key and try the sandbox. Check pricing when you are ready to send.

Sources

  1. Belkins, cold email response rates (2026)
  2. Belkins, cold email response rates (2026)
  3. FTC: CAN-SPAM Act compliance guide for business
  4. LinkedIn User Agreement (section 8.2, Don’ts)
  5. Readiness Cards
  6. Outlevo pricing
  7. Website visitors integration
  8. Release 2026-10-19
  9. Free ICP assessment
  10. ICP from evidence
  11. Smartlead integration
  12. How Outlevo works
  13. Managed mailboxes integration
  14. Developer hub
  15. REST API and SDK integration
  16. HubSpot integration
  17. Security

Related

  • Outbound for developer toolsA cold email playbook for developer-tools companies: find buyers in your deal data, write one checkable observation…
  • Outbound to RevOps leaders at SaaS companiesA playbook for cold email to RevOps leaders at SaaS companies: who buys, roles to reach, triggers to watch, and a…
  • DeliverabilityHow reliably your emails reach the recipient's inbox, rather than being rejected, filtered to spam or delayed.
  • SequenceA planned series of messages to one prospect, such as a first email and two follow-ups a few days apart, that stops…
  • Companies APIThe companies endpoints of the Outlevo REST API: GET /v1/companies, POST /v1/companies.
  • Free ICP assessmentYour buyers, segments and a first email from your own website, free and without sign-up.

See what Outlevo finds on your own website

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