Build with
CleverReach.
Integrate email marketing directly into your application. Access groups, mailings, reports, and more! Use our modern REST API, official SDK or our new MCP Server.
# Fetch all recipient groups
curl -X GET \
"https://rest.cleverreach.com/v3/groups" \
-H "Authorization: Bearer YOUR_TOKEN"
# Create a new group
curl -X POST \
"https://rest.cleverreach.com/v3/groups" \
-H "Content-Type: application/json" \
-d '{"name":"Newsletter 2026"}'
Start your first integration
in minutes.
Choose your entry point. All paths lead to your first successful API call.
Authentication
Set up OAuth 2.0 to securely connect to our API. Manage your authorization flows and retrieve access tokens.
OAuth documentationGuides & Use Cases
Practical guides for common integration scenarios: manage groups, send mailings, analyze reports.
Browse all guidesAPI Reference
Complete reference for all endpoints — including an interactive Swagger UI right alongside the documentation.
Open API ReferenceEverything you need for your integration
Accelerate development with ready-made tools, official SDKs, and direct references.
MCP Server
NewConnect CleverReach directly to Claude, Cursor, or other AI assistants via the Model Context Protocol.
Official PHP SDK
Official client library for PHP — with API coverage for important endpoints.
Existing Integrations
Discover our existing plugins and integrations for popular e-commerce, CRM, and CMS platforms.
Developer Account
Create a free developer account to safely build your integration and unlock exclusive benefits.
OpenAPI Reference
Interactive API exploration in the browser. Swagger URLs are directly copyable; your API key works across all routes.
Partner Program
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Something missing or unclear?
Leave direct feedback via UserSnap on every API page. Bugs, gaps, or feature requests go straight to the integration team