Loved by data teams from around the world
MCP Server
Query your warehouse and run your pipelines conversationally, from any AI agent.
You
EXTRACT
Replicate data from all your sources to your warehouse in minutes.
Incremental, full, and CDC replication from 300+ sources into your warehouse. Schema-aware, type-safe, and reliable by default.
Google BigQuery
Snowflake
Databricks
PostgreSQL
Amazon RedshiftLog-based CDC for PostgreSQL, MySQL, SQL Server and MongoDB. Capture inserts, updates and deletes in near real-time.
HubSpotHubSpot
Data source
Automatic schema migrations, CDC conflict resolution, and API versioning. Self-healing with exponential back-off retries.
Weld detects schema changes, manages API versioning, and prevents breaking updates automatically.
Duplicate detection, validation checks, and proactive alerts keep your pipelines clean and dependable.
Real-time monitoring plus automatic retries ensure pipelines recover fast and stay running.
hubspot_contacts
stripe_payments
salesforce_leads
zendesk_tickets[auto] Schema change detected on stripe_payments
Bring your own dbt Cloud or dbt Core project, push models via GitHub, or use Weld's built-in SQL workspace. Develop with Claude Code, Cursor, or GitHub Copilot and manage everything programmatically with the Weld API.
Trigger dbt Cloud jobs via webhooks after syncs, or run dbt Core with your own orchestration layer: Airflow, Dagster, Prefect, or any custom service.
Build transforms with Claude Code, Cursor, or VS Code with GitHub Copilot. Push to GitHub and deploy automatically with full version history.
Create, read, update, and delete transforms via REST API. Publish revisions, retrieve version history, and integrate with any automation toolchain.
Activate warehouse models in CRMs, ad platforms, and internal tools. Row-level diffing, idempotent upserts, and configurable sync cadence.
Ship cleaned customer and product data into Salesforce, HubSpot, ad platforms and more so every team works from the same source of truth.
Build audiences, triggers and workflows on top of your warehouse models instead of fragile ad-hoc exports.
Centralized monitoring, logging and alerting keep your downstream syncs reliable and auditable.
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Full programmatic control over connections, syncs, and schedules via REST. Embed ELT pipelines directly into your product with a single API key.
White-label data ingestion so your customers can connect their own sources without exposing the Weld UI.
Programmatically create, configure and manage hundreds of syncs through clean, predictable REST endpoints.
Authenticate, create connections, add streams, enable scheduling and monitor status, all through a single API.
Feed structured data from any source into vector databases and LLM workflows, fully automated and always up to date.
Built for global scale
Countries with active customers
Uptime across all syncs
Daily syncs
Records synced annually
SECURITY
WHITE PAPER
Our approach to security, compliance, and privacy — covering SOC 2, SOC 3, ISO 27001, HIPAA readiness, encryption practices, and governance.
Independent audit of security controls over time. Report available under NDA.
ISO 27001-certified infrastructure and ISMS practices.
HIPAA-ready processes and controls for PHI where applicable.
TLS 1.2+ in transit and strong encryption at rest.
SSO/MFA and role-based permissions with least privilege.
Privacy-first by design with EU data residency options.
FROM THE BLOG
The latest on data engineering, product updates, and customer stories.
Weld is listed in MotherDuck's technology partner ecosystem for both ingestion and reverse ETL, and MotherDuck is live as a Weld destination. Here are three ways teams are combining them, from safely running AI agent queries to powering customer-facing analytics.
August brought five new sources (Zoho CRM, Typeform, Grin, Zigpoll, and Azure SQL Database), Microsoft SQL Server as a new destination, Microsoft Teams notifications, three new MCP and REST API capabilities, and a Criteo connector that now syncs real campaign and ad data.
Weld is publicly listed in Claude's connector directory. No more pasting an MCP URL into a custom connector dialog: find Weld under Connectors, click Connect, log in, and Claude can run your ingest, transforms, orchestration, Reverse ETL and warehouse queries.
CUSTOMER STORIES
“Weld gives us the ability to see a huge array of KPIs and data points that we can then feed back to clients in an insightful and actionable way.”
“One of the biggest impacts has been unlocking new ways to buy media. Before, we didn’t have the data to back up strategic decisions – now we do.”
“Before Weld, we had to rely on custom Python scripts and manual processes that were time-consuming and error-prone.”
“We’re still a team of three, but we’re often doing far more than the equivalent of three full-time employees. That’s down to how we're able to leverage systems, data, and processes.”
“We’ve always been a KPI-driven company. But we wanted to scale that mindset across every team member, every team, every decision.”
“Before Weld, our data infrastructure was limited and we relied heavily on Excel files and custom Python scripts.”
“Weld has saved us a ton of time, from not having data ready to having a fully functional data warehouse and connectors.”
AWARD WINNING ETL PLATFORM
Give your team and AI agents reliable data from day one.
