Pipeline
Pipeline is the pipe0 blog. We write about B2B data enrichment and the providers behind it, and about the engineering that goes into a data platform.
Updated October 2026 · 60 posts
Sales dataBuiltWith vs DataForSEO: Which API Finds a Company's Tech Stack? (2026)
We looked up the same 20 websites in both APIs. DataForSEO is a third cheaper, but BuiltWith found a technology in five to six times as many categories.
Sales dataBuiltWith vs Amplemarket: Which Finds a Company's Tech Stack? (2026)
We looked up the same 20 websites in both. Amplemarket matches BuiltWith on coverage, but it has no detection dates and listed conflicting shop platforms for three of ten stores.
Sales dataThe Best Email Verification Tools, Tested on 100 Known Addresses (2026)
We ran the same 100 email addresses through 6 email verifiers. One half was real and the other fake. Every provider handled Gmail and dead domains. On work addresses, accuracy ranged from 97% down to 66%.
Sales dataWaterfall Enrichment in Claude Code with an MCP Server
Waterfall enrichment is how you get accurate, affordable B2B data. Which MCP servers run waterfalls, how to connect one to Claude Code, and how to change the provider order.
Sales dataClay Alternatives for Agencies (2026)
What an outbound agency needs from a Clay alternative: a cost per client you can invoice through, workflows you reuse across clients, and API or CLI access. Five options compared.
Sales dataClay Alternatives for AI-First GTM Teams
Most teams now want their own agents to run GTM, not a platform's built-in one. The two common ways to replace Clay, Clay clones and data-for-agents tools, both leave a gap. A third approach, and a directory of the tools in each camp.
EngineeringClay vs pipe0 for Developers: Enrichment APIs and Data Syncs
Developers look for a Clay API to build enrichment into their product or to enrich a warehouse or CRM and write it back. Clay's API wasn't built for either: it's a remote control for the Clay workspace. pipe0 is a data API built for both.
Sales dataThe Best Tools for GTM Engineers (2026)
GTM engineers build the systems and experiments that scale a company's growth. Here are the tools they use for each layer of the stack: reasoning, data and automation, CRM, sending, sync, and research.
EngineeringThe Best Data Enrichment APIs (2026)
An enrichment API is something you build on when you need to integrate B2B data into a tool or workflow. Eight APIs compared.