Sourcing Engineers Outside LinkedIn
Engineers are on LinkedIn; the reply doesn't have to happen there. Build a sourcing pipeline that finds engineers by role and reaches them directly.
Building a Signup Identity Verifier
Fake signups and trial abuse are rising. Verify a B2B signup is a real person at a real company with a Person API, then route by risk. Python and JS.
Evaluating Agent Tool Calls
Most agent evals grade the final answer. The harder failure is a tool returning 200 OK with an empty field. Evaluate the data your agent got, in Python and JS.
How to Code an Enrichment Waterfall
A Python and JavaScript walkthrough of waterfall enrichment: provider fall-through, field-level merge, conflict resolution, caching, and cost control.
A Prospect Research Agent with Claude Code + datalegion-cli
Build a prospect research agent in 10 minutes with Claude Code + datalegion-cli. Outputs a per-account dossier and per-contact email-sequence outlines.
API, SDK, MCP, CLI: Building Data Products for the Agent Era
How we built four interfaces to the same data and why AI agents work best with a CLI. Introducing datalegion-cli.
Lead Scoring with Enriched Data
Most lead scoring models fail because the data is incomplete. How to build, calibrate, and maintain a scoring model powered by enrichment.
The GTM Engineer's Guide to Data Enrichment
GTM engineers own the data layer powering sales workflows. Learn how to evaluate enrichment APIs, build waterfall enrichment, and avoid common pitfalls.
Building a Real-Time Enrichment Pipeline with a Person API
Stop exporting CSVs. Build a real-time data enrichment pipeline with a person API that enriches leads the moment they enter your system.