Courier is the smartest way to design and deliver notifications. Design once, and deliver to any channel – email, Slack, SMS, push, and more – through one API.
API styles
REST
Webhooks
Webhooks management API
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Sandbox environment
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Authentication
OAuth playground
Identity protocols
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SSO / Social login
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Postman / Insomnia collections
OpenAPI/Swagger specs
Free developer account
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App listing requirements
Pagination style
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Developer docs
API Reference
CLI
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Query Language
Community
Integrations
Integrations page
GraphQL playground
API Explorer
API pricing
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API limits
API changelog
Status page
Open-source
Tutorials
Samples & examples
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Base endpoint
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GraphQL endpoint
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IDE Extensions
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Estimated developers
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Estimated customers
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