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Self-hosting
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AgentsNewAI primitivesNewApp builderMobile appsWorkflowsDatabaseExternal appsSelf-hosting
Illustration of Agents showing an abstract nature scene
AI Primitives
App Builder
Mobile
Workflows
Database
External apps
Self-hosting
Illustration of Agents showing an abstract nature scene
AI Primitives

Type

EnterpriseStartupsAgencies

Discover

IntegrationsTemplatesUtilitiesBlogReads and reportsCustomer storiesVideosInteractive tour

Developers

DocumentationCommunityRetool UniversityAPI referenceRPC referenceCLI referenceHire a developer

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Use cases
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Solutions

A simple UI for transactional email

Easily assemble a UI on top of Sendgrid, Mailgun, or whatever ESP you're using to reach your customers fast

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A simple UI for transactional email
Native SendGrid integration

Native SendGrid integration

Retool integrates natively with SendGrid – you can send transactional email with personalizations, look at your contacts and lists, and work with marketing templates. And if you're using another ESP, Retool easily connects to any REST or GraphQL compatible endpoints.

Simple custom UIs

Simple custom UIs

Retool ships with all of the building blocks you need to assemble a useful UI on top of your ESP APIs – pull your users into a table, adjust email details via a rich text editor, and connect your `POST` request to a button.

Integrate with your user data

Integrate with your user data

Retool connects to 40+ data sources, so you can bring in your user data wherever it is – Postgres, MongoDB, Firebase, Snowflake, you name it.

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From startups to Fortune 500s, the world's most effective teams use Retool to build custom business software. Our customers

envoy

David Boskovitz

Software Engineer at Envoy

Supported operations for SendGrid

Read documentation

Send an Email with /mail/send
POST to the mail send endpoint and include personalizations

Analyze campaign stats
GET performance numbers on automations from the /marketing/stats/automations endpoint

Add contacts to a list
PUT new contacts in a list via the /marketing/contacts endpoint

Join with other datasources
Easily join with other Retool connected datasources like Postgres or the Stripe API.

Retool provides the building blocks for any internal tool

Try Retool today

Start building an internal tool or customer portal in under 10 minutes

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Platform
AgentsNew
AI primitivesNew
App builder
Mobile apps
Workflows
Database
External apps
Self-hosting
Audience
Enterprise
Startups
Agencies
Resources
Use cases
Integrations
Templates
Utilities
Blog
Reads and reports
Customer stories
Videos
Developers
Documentation
Retool University
Hire a developer
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© Retool 2025
Company
About
Careers
Partners
Newsroom
Start for freeStart for freeBook a demoBook a demo
Terms of usePrivacy policySecurityTrust CenterSite map
© Retool 2025