Stampwing developer docs.
Install, connect, and troubleshoot your email integration. Start with a simulated Test message, then follow the checks for your next step.
Choose your starting point.
Automate with Codex or Claude
Connect an assistant to your installation. Draft, preview, and manage email with the access you choose.
Connect your assistant →Try without an account
Run a local HTTP simulation. No key, database, DNS, or email delivery.
Try the local fixture →Connect an existing app
Have workspace access? Create a Test key and verify your first saved message.
Start the quickstart →Install from source
Have a checkout? Set up the database, app, and demo worker.
Install Stampwing locally →Setup, tutorials, and help.
All email guides →8 guides · Practical answers, with examples
Connect Codex and Claude with MCP
Connect Codex, Claude Code, or Claude with OAuth. Automate email templates, workflows, diagnostics, and permitted sends with copyable commands and prompts.
Send your first Stampwing Test request
Choose the right setup path, create a project and Test key, submit one simulated email, and verify the saved message.
Install the app, database, and demo worker
A complete local source setup with prerequisites, environment values, PostgreSQL, migrations, the web app, workers, and recovery checks.
Install the SDK and connect your backend
Build and install the local TypeScript SDK, send with a verified Test key, connect a server module, and add templates and signed webhooks.
Verify your domain and prepare live sending
Prepare a sending domain, understand automatic account and provider setup, choose Live permissions, and verify real delivery evidence.
HTTP API reference for your first integration
Exact endpoint paths, single-recipient fields, permissions, idempotency rules, response semantics, templates, and feature boundaries.
Find the failed step and recover safely
Practical fixes for installation errors, missing keys, wrong environments, validation failures, limits, queued mail, DNS, and uncertain outcomes.
Give your AI assistant the right setup context
A copyable setup prompt, installation decision table, failure recovery rules, and evidence-based handoff for AI coding assistants.
Set up with an AI assistant.
Give your assistant the product context and exact API contract. Every guide has a Markdown version with the same steps and examples. Keep secret values in your environment, outside the conversation.