Weld Connect API

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Fast and Seamless Integration

A developer-friendly API for connecting, automating, and managing data across all your business tools.

Why Choose Weld Connect?

  • Rapid Integration: Clear API documentation and easy setup. Start building in minutes, not hours.

  • Scalable Automation: Automate data flows across CRMs, finance tools, ad platforms, and more.

  • Reliable Support: Responsive support from a team that knows the product inside out.

Available Endpoints

The API covers three core areas:

Connections & ELT Syncs

Create data sources, configure syncs, select streams, and control scheduling.

Transforms API New

Create, update, publish, and version data models directly through the API.

EndpointWhat it does
GET /transformsList models with filters
POST /transformsCreate a model with SQL and optional auto-publish
PATCH /transforms/{id}Update SQL, name, folder, or materialization
POST /transforms/{id}/publishMaterialize to your warehouse
GET /transforms/{id}/versionsBrowse revision history
POST /transforms/bulkCreate up to 50 models at once

Read the Transforms API blog post →

Full API Reference

All endpoints, request/response formats, and authentication details are available in the API reference →.


Use Cases

  • Integration orchestration: Automate connections between business systems, syncing data across platforms without manual data entry.

  • CI/CD model deployments: Push SQL models from Git to Weld as part of your release pipeline using the Transforms API.

  • AI agent workflows: Let coding assistants (Claude Code, Cursor, Copilot) or custom agents create connections, trigger syncs, and publish models via the API.

  • Workflow automation: Trigger and control data processes through APIs, enabling dynamic scheduling and multi-step orchestrations.

  • Access and permissions control: Manage user roles, permissions, and API keys programmatically.

  • Data monitoring: Capture real-time metrics on data syncs, system health, and performance.

    Limitations

    Currently, it is not possible to create ELT syncs using Weld Connect for the following integrations:

    • Business Central
    • Microsoft OneDrive
    • SFTP

    We also don't support the creation of any custom reports such as the ones we have under Facebook Ads, Google Ads and Google analytics.

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