Resend llms.txt · AI Docs Browser · mdream [llms.txt Tools](https://mdream.dev/llms-txt/resend/llms-txt) # Resend llms.txt Browse Resend documentation as markdown. Click any page in the sidebar to view it, or copy the full llms.txt for your AI tools. resend.com/llms.txt [Raw llms.txt](https://resend.com/docs/llms.txt) [Raw llms-full.txt](https://resend.com/llms-full.txt) Copy Markdown [](https://resend.com/llms.txt) llms.txt Docs Add a domain Agent Email Inbox Skill AI Onboarding How to add the Resend integration to your Anything project Create API key Delete API key List API keys Create Broadcast Delete Broadcast Retrieve Broadcast List Broadcasts Send Broadcast Update Broadcast Create Contact Property Delete Contact Property Retrieve Contact Property List Contact Properties Update Contact Property Add Contact to Segment Create Contact Delete Contact Delete Contact Segment Retrieve Contact Retrieve Contact Topics List Contact Segments List Contacts Update Contact Update Contact Topics Claim Domain Create Domain Delete Domain Retrieve Domain Get Domain Claim List Domains Update Domain Verify Domain Verify Domain Claim Cancel Email List Attachments List Sent Emails List Attachments List Received Emails Retrieve Sent Email Retrieve Attachment Retrieve Received Email Retrieve Attachment Send Batch Emails Send Email Update Email Errors Introduction List Logs Retrieve Log Authorize List Grants Register Client Revoke Token Revoke Grant Token Pagination Usage Limits Create Segment Delete Segment Retrieve Segment List Segment Contacts List Segments Add Suppression Add Suppressions Retrieve Suppression List Suppressions Remove Suppression Remove Suppressions Create Template Delete Template Duplicate Template Get Template List Templates Publish Template Update Template Create Topic Delete Topic Retrieve Topic List Topics Update Topic Create Webhook Delete Webhook Retrieve Webhook List Webhooks Update Webhook Resend API vs SDK Send emails with Base44 and Resend Send emails with Bolt.new and Resend Chat SDK Chat SDK Attachments Chat SDK Card Emails Chat SDK Proactive Outreach Resend CLI Resend CLI for AI Agents Send emails with Resend CLI Create an API key Introduction Managing Contacts Your Resend Audience Managing Unsubscribed Contacts Contact Properties Add to Segment Condition Contact Delete Contact Update Custom Events Delay Using Automations Runs Send Email Trigger Wait for Event Managing Broadcasts Performance Tracking Implementing BIMI Claiming a domain Implementing DMARC Managing Domains Choosing a Region Open and Click Tracking Add an unsubscribe link to transactional emails Attachments Batch Sending Custom Headers Deliverability Insights Email Bounces Email Suppressions Embed Inline Images Idempotency Keys Managing Emails Schedule Email Send Test Emails Managing Tags Introduction Process Receiving Attachments Custom Receiving Domains Forward Received Emails Get Email Content Receiving Emails Reply to Receiving Emails Managing Segments Migrating from Audiences to Segments Managing Billing Managing Teams Custom Unsubscribe Page Using Templates Working with Variables Version History Topics How to Store Webhooks Data DMARC Analyzer Email Best Practices Skill Examples Sending emails with Resend Building an OAuth client for Resend Send emails with Devin and Resend Turn Paper designs into Resend emails Vercel Marketplace Integration Integrations Introduction 403 Error with Error Code 1010 403 Error Using Verified Domain 403 Error Using resend.dev Domain What are Resend account quotas and limits? Audience Hygiene: How to keep your Audiences in good shape? Cloudflare Do You Need 2048-bit DKIM? Does Resend require production approval? Domain Already Registered by Another Account Where to find Resend documents like DPA or W-9 DreamHost Embed the React Email editor in your app How to set up E2E testing with Playwright Forward emails with Resend Inbound Gandi Get Started with Resend and Supabase GoDaddy Hetzner Hostinger How to change your Resend email address How to delete your Resend account How to delete your Resend team Can You Receive Emails with Resend? Sender email addresses in Resend How do Dedicated IPs work? How to avoid conflicts with your MX records How to avoid Gmail's spam folder How to avoid iCloud's spam folder How to avoid Outlook's spam folder How to ensure sensitive data isn't stored on Resend How to fix CORS issues How to maximize deliverability for Supabase Auth emails How to send with an avatar How to set up Apple Branded Mail How to Handle API Keys Introduction IONOS Is it better to send emails from a subdomain or the root domain? Send emails with n8n and Resend Namecheap Porkbun AWS Route 53 How to prevent bounces with @privaterelay.appleid.com recipients? Setting up Resend for Multi-Tenant Applications Do you need to add an unsubscribe link to all of your emails sent with Resend? Squarespace Strato Template emails with React Email Vercel Domain and/or IP Warm-up Guide What attachment types are not supported? What counts as email consent? What email addresses to use for testing? What if an email says delivered but the recipient has not received it? What if my domain is not verifying? What is Resend Pricing Which sending feature do you need? What's the difference between Opportunistic TLS vs Enforced TLS? Why Are My Emails Going to Spam? Why are my emails landing on the Suppression List? Why are my open rates not accurate? Why and when to use Topics? Send emails with Leap and Resend Send emails with Lovable and Resend MCP Server OpenClaw Guide React Email Skill Send emails with Replit and Resend Resend Skill Official SDKs Security Send emails with Astro Send Auth0 transactional emails with Resend Send emails with AWS Lambda Send emails with Axum Send emails with Bun Send emails with Cloudflare Workers Send emails using Customer.io with SMTP Send emails with Deno Deploy Send emails with Django Send emails using Django with SMTP Send emails with .NET Send emails with Elixir Send emails with Encore Send emails with Encore Send emails with Express Send emails with FastAPI Send emails with Flask Send emails with Go Send emails with Hono Send emails with Java Send emails with Laravel Send emails using Laravel with SMTP Send emails using Liferay with SMTP Send emails using Metabase with SMTP Send emails using NextAuth with SMTP Send emails with Next.js Send emails with Node.js Send emails using Nodemailer with SMTP Send emails with Nuxt Send emails with Phoenix Send emails with PHP Send emails using PHPMailer with SMTP Send emails with Python Send emails with Rails Send emails using Rails with SMTP Send emails with Railway Send emails with RedwoodJS Send emails with Remix Send emails using Retool with SMTP Send emails with Ruby Send emails with Rust Send emails with Sinatra Send emails with SMTP Send emails with Supabase Edge Functions Send emails using Supabase with SMTP Send emails with SvelteKit Send emails with Symfony Send emails with TanStack Start Send emails with Vercel Functions Send emails using WordPress with SMTP Send emails with v0 and Resend contact.created contact.deleted contact.updated domain.created domain.deleted domain.updated email.bounced email.clicked email.complained email.delivered email.delivery_delayed email.failed email.opened email.received email.scheduled email.sent email.suppressed Event Types Webhook Ingester Managing Webhooks Retries and Replays Verify Webhooks Requests OpenAPI Specs package pnpm-lock renovate ## What is Resend's llms.txt? Resend publishes an `/llms.txt` file that provides AI systems with a structured index of its documentation. It follows the [llms.txt specification](https://llmstxt.org), organizing links to guides, API references, and tutorials under section headings so that LLMs like ChatGPT, Claude, and Gemini can quickly understand what Resend offers and where to find details. Pass Spec 2 Sections 311 Links 44.0 KB Size ~11.3k Tokens Sections: Docs · OpenAPI Specs ## Add Resend Docs to Your AI Assistant Select your tool to see how to add Resend's llms.txt as a documentation source. Cursor Windsurf Claude Code ChatGPT Zed Copilot 1. 1 Open any chat or composer panel 2. 2 Type @Docs and select "Add new doc" 3. 3 Paste the URL: https://resend.com/llms.txt 4. 4 Wait for the green dot (indexing complete) 5. 5 Reference @Docs in chat when asking about Resend Cursor crawls the URL and indexes all subpages. Add a trailing slash to index child pages too. ## Spec Compliance 2 notes ## Frequently Asked Questions Where is Resend's llms.txt file? Resend publishes its llms.txt at https://resend.com/llms.txt. This file provides a structured, markdown-formatted index of Resend's documentation that AI systems can consume to understand the project's APIs, guides, and references. How do I use Resend's llms.txt with AI coding assistants? Copy the llms.txt content and paste it into your AI assistant (Cursor, Windsurf, Claude, ChatGPT) as context. This gives the AI an accurate map of Resend's documentation so it can provide better code suggestions and answers about Resend. What does Resend's llms.txt contain? Resend's llms.txt contains 2 sections and 311 documentation links in 44.0 KB (~11.3k tokens). Key sections include Docs, OpenAPI Specs. How many tokens does Resend's llms.txt use? The concise llms.txt index is approximately 11.3k tokens (44.0 KB). Most AI assistants can fit this within their context window. For the full expanded documentation, look for an llms-full.txt variant which embeds all content inline. What is Resend? Email API for developers. Resend's llms.txt file helps AI systems understand this by providing a structured overview of its documentation, making it easier for developers to get accurate AI-assisted help when working with Resend. Can I generate an llms.txt for my own project? Yes. Use the free llms.txt generator at mdream.dev/tools/llms-txt/generator to crawl your site and produce a spec-compliant llms.txt file. You can also validate existing files with the llms.txt validator. ## Browse More llms.txt Files [Grafbase The fastest GraphQL gateway](https://mdream.dev/llms-txt/resend/llms-txt/grafbase) [Inngest Durable workflow engine for AI and background jobs](https://mdream.dev/llms-txt/resend/llms-txt/inngest) [Fumadocs The documentation framework for Next.js](https://mdream.dev/llms-txt/resend/llms-txt/fumadocs) [Trigger.dev Open source platform for AI agents and long-running workflows](https://mdream.dev/llms-txt/resend/llms-txt/trigger-dev) [LangChain Framework for developing applications powered by LLMs](https://mdream.dev/llms-txt/resend/llms-txt/langchain) [PostHog Open-source product analytics platform](https://mdream.dev/llms-txt/resend/llms-txt/posthog) [React The library for web and native user interfaces](https://mdream.dev/llms-txt/resend/llms-txt/react) [Linear A purpose-built tool for planning and building products](https://mdream.dev/llms-txt/resend/llms-txt/linear) [View all 99 projects ](https://mdream.dev/llms-txt/resend/llms-txt) ## Related Tools [

llms.txt Generator

Generate an llms.txt for your own project.](https://mdream.dev/llms-txt/resend/tools/llms-txt/generator) [

llms.txt Validator

Validate your llms.txt against the official spec.](https://mdream.dev/llms-txt/resend/tools/llms-txt/validator) © 2026 [Harlan Wilton](https://github.com/harlan-zw) · [MIT](https://github.com/harlan-zw/mdream/blob/main/license) [GitHub](https://github.com/harlan-zw/mdream) [Discord](https://discord.com/invite/275MBUBvgP)