Weld

What Weld is

Weld moves data from sources into warehouses and back to business tools for analytics, AI, and operational workflows. Its pipeline features include incremental, full, and change data capture replication, automatic schema handling, data quality checks, monitoring, and retries. The connector directory lists more than 300 prebuilt connectors, with custom connectors also supported. Listed destinations include BigQuery, Snowflake, Databricks, Redshift, and PostgreSQL. Weld provides a SQL workspace and supports dbt Cloud and dbt Core workflows. It can sync warehouse models to Salesforce, HubSpot, Intercom, and Google Ads. The Weld Connect REST API provides programmatic control over connections, syncs, and schedules, and an MCP server is available for AI agents. Plans use Monthly Active Rows allowances, with additional usage available for purchase. Basic costs $99 a month billed annually and includes 5M Monthly Active Rows, 2 connectors, 1 user, daily sync, and 1 destination. Every plan includes a 14-day trial with full platform access and no credit card required. Weld says it uses TLS 1.2+ in transit, encryption at rest, least-privilege access, and audited controls; it also reports SOC 2 Type II and ISO 27001.

Who it suits

Weld may suit teams that need to move data between sources, warehouses, and business applications for analytics or operational workflows. Its API and MCP server may also suit teams seeking programmatic control or AI-agent access.

Limits

The Basic plan costs $99 a month billed annually and includes 5M Monthly Active Rows, 2 connectors, 1 user, daily sync, and 1 destination. Additional usage can be purchased.

Getting started

1. Visit Weld on the web.
2. Start the 14-day free trial; no credit card is required.
3. Choose a plan based on its Monthly Active Rows allowance.
4. Connect sources and a destination using available connectors.
5. Use the SQL workspace or dbt workflows for transformations, or configure reverse syncs.

Verdict

Weld covers warehouse ingestion, transformations, reverse sync, and programmatic controls, with plan limits tied to row allowances and connectors. Review the annual billing and included capacity for the plan that fits your workflow.