ETL/reverse-ETL platform syncing 300+ data sources to warehouses like BigQuery and Snowflake, with an MCP server for AI agents.
What it does
Weld is a managed ETL and reverse-ETL platform that replicates data from 300+ sources into warehouses like BigQuery, Snowflake, or Redshift, transforms it with SQL or dbt, and pushes it back into operational tools. It also exposes an MCP server so AI agents can query and manage the data pipelines directly.
Core features
300+ prebuilt connectors plus custom Python connectors
Change data capture for near real-time replication
SQL/dbt-based data transformation workspace
Reverse ETL to push warehouse data into tools like Salesforce or HubSpot
Automatic schema-change detection and self-healing pipelines
MCP server for AI agents to query and manage pipelines
Best for
→Data teams centralizing marketing, sales, and product data in a warehouse
→Analysts building dbt transformations without managing infrastructure
→Ops teams syncing warehouse insights back into CRM/marketing tools
→AI-agent workflows that need direct, governed access to business data
Pricing
Basic
$99/mo
Premium
$389/mo
Business
$959/mo
Reviews
Big-picture takes: what it's for and whether it delivers. High-engagement YouTube videos — not sponsored.
Tutorials
Step-by-step: exactly how to get things done with it.