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gRPC

For high-performance applications, you can connect directly to our HTTP/2 gRPC API.
Supported Languages: Any language with gRPC support — Go, Python, Java, C++, Ruby, C#, PHP, and more
Best For: Polyglot environments or languages without an official SDK

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Connection Details

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Address
string
api.simpleemailapi.dev:443
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Service
string
v1.EmailService
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Method
string
SendEmail

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Authentication

Pass your api key in the Authorization metadata header. 
Authorization: Bearer sea_live_...

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Example (buf curl)

Use buf curl to invoke RPCs using the remote schema registry—no manual proto downloads required. 
buf curl \
  --schema buf.build/simpleemailapi/public \
  --header "Authorization: Bearer sea_live_..." \
  --data '{
    "from": "[email protected]",
    "to": ["[email protected]"],
    "subject": "Hello gRPC",
    "body": "Sent via direct buf curl!",
    "async": true
  }' \
  https://api.simpleemailapi.dev/v1.EmailService/SendEmail

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Protobuf Definitions

You can generate clients for any language (Go, Java, Python, C++, etc.) using our Protobuf definitions available on the Buf Registry (BSR). 
# Example: Inspecting the service with reflection
grpcurl \
  -H "Authorization: Bearer sea_live_..." \
  api.simpleemailapi.dev:443 \
  describe v1.EmailService