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

Connection Details

string

api.simpleemailapi.dev:443

string

v1.EmailService

string

SendEmail

Authentication

Pass your api key in the Authorization metadata header.

Authorization: Bearer sea_live_...

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": "hello@yourdomain.com",
    "to": ["user@example.com"],
    "subject": "Hello gRPC",
    "body": "Sent via direct buf curl!",
    "async": true
  }' \
  https://api.simpleemailapi.dev/v1.EmailService/SendEmail

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

Get Started

Domains

SDKs

Protocol Clients

Compliance

Receiving

Resources

gRPC

gRPC

Connection Details

Authentication

Example (buf curl)

Protobuf Definitions

​gRPC

​Connection Details

​Authentication

​Example (buf curl)

​Protobuf Definitions

gRPC

Connection Details

Authentication

Example (buf curl)

Protobuf Definitions