--- title: SendHQ description: "Send and receive transactional email with SendHQ's developer-first API. Verify domains, track delivery events, route inbound mail, and use scoped API keys." canonical: https://sendhq.cc/ last-updated: 2026-08-26 --- # SendHQ SendHQ is a workspace-scoped email API for expected product communication. It supports verified-domain sending, inbound email, hosted templates, delivery events, suppressions, and a web dashboard. ## Use SendHQ for - Transactional email that a recipient expects, including account verification, receipts, alerts, password resets, and product notifications. - Inbound addresses and reply threads for a verified domain. - Hosted, versioned templates and delivery-event investigation. - Server-side integrations using a workspace API key. Do not use SendHQ for unsolicited campaigns, phishing, credential collection, mailbox-existence claims, or inbox-placement claims. Provider acceptance and delivery events do not prove that a person saw a message. ## Agent and developer entry points - [Developer documentation](https://sendhq.cc/docs.md) - [OpenAPI 3.1 contract](https://sendhq.cc/openapi.json) - [Authentication guide](https://sendhq.cc/auth.md) - [Pricing and limits](https://sendhq.cc/pricing.md) - [SendHQ Email skill](https://sendhq.cc/.well-known/agent-skills/sendhq-email/SKILL.md) - [Read-only documentation MCP server](https://sendhq.cc/.well-known/mcp/server-card.json) - [SendHQ MCP server for agents](https://sendhq.cc/docs/mcp): local stdio server (`sendhq mcp`) with tools for sending, inbound, domains, templates, and deliverability - [Read-only A2A documentation agent](https://sendhq.cc/.well-known/agent-card.json) - [Complete URL index](https://sendhq.cc/sitemap.xml) - [About SendHQ](https://sendhq.cc/about.md) - [Contact SendHQ](https://sendhq.cc/contact.md) - [Full agent-readable inventory, including every page's Markdown version](https://sendhq.cc/llms-full.txt) - [Agent operating guide](https://sendhq.cc/agents.md) ## Homepage content ### Everything you run. One email API. Add every domain. Give each **product, service, and AI agent** its own inbox and sending identity. Send, receive, and manage every email use case from one beautifully simple workspace. Transactional Inbound Agent inboxes Controlled outbound One integration Every domain Every inbox Every agent Every product Every workflow The old way multiplies #### Every new product shouldn’t mean another email stack. Another account. Another API. More DNS, keys, webhooks, logs, bills, and places for replies to disappear. SendHQ turns all that sprawl into one reusable email layer. TX ##### Transactional provider Receipts and notifications IN ##### Team inbox Support and replies AI ##### Agent mailbox Automated conversations OB ##### Outbound tool Founder-led outreach Replace all four → A universal email primitive #### Give anything an email. A product, an app, an agent, or a person. Give it an identity that can send, receive, automate, and hand control to a human. 01 / Product ##### Products Receipts, onboarding, alerts, confirmations, and every message your product needs to send. 02 / Service ##### Services Background jobs, monitoring, billing, and internal systems with scoped sending identities. 03 / Agent ##### AI agents Real inboxes, real identities, controlled permissions, full history, and a human within reach. 04 / Human ##### People Inspect, reply, approve, pause, and take over without leaving the same shared workspace. From receipt to reply #### One API. Every email use case. Stop treating every kind of email like a separate product. SendHQ carries the whole conversation while keeping identities, access, and reputation organized. Transactional email ##### Every product message, through the same pipe. Send receipts, password resets, onboarding, alerts, and notifications from identities scoped to each product and domain. { } **Product** Triggers message → **SendHQ** Authenticates + sends @ **Recipient** Receives email ✓ **Activity** Event stays visible Integrate once #### Your code learns one email API. Every product and agent uses the same clean interface. Change the domain, identity, or workflow—not your infrastructure. REST API Inbound webhooks Scoped API keys Delivery events Multiple domains Inbox + outbox create-email-identity.js ``` const sendhq = new SendHQ({ apiKey: process.env.SENDHQ_API_KEY }); // One API. Any identity. await sendhq.emails.send({ from: "receipts@acme.com", to: "customer@example.com", subject: "Your receipt", html: receiptHtml }); // The next product uses the same API. await sendhq.emails.send({ from: "hello@launchkit.io", to: "founder@example.com", subject: "Welcome to LaunchKit", html: welcomeHtml }); ``` Use SendHQ from your AI assistant #### Email from Claude, ChatGPT and Muse. Connect your SendHQ workspace once, then read, send and troubleshoot email by asking in plain words. Server URL: `https://mcp.sendhq.cc/mcp` **Claude** 1. In Claude, open Settings → Connectors and search for SendHQ, or choose Add custom connector and paste the server URL. 2. Click Connect and sign in to SendHQ. 3. Click Allow, then ask about your email in any chat. **ChatGPT** 1. Open Settings → Security and login and turn on Developer mode. 2. At chatgpt.com/plugins, click Create MCP app and paste the server URL. 3. Sign in, click Allow, then pick SendHQ from the tools menu. **Muse by Meta** 1. In Muse, open Connectors and search for SendHQ. 2. Click Connect and sign in to SendHQ. 3. Click Allow and ask Muse to handle your email. ##### What you can do once it’s connected **Check your inbox** “What’s new in my SendHQ inbox?” Summarizes new mail at your addresses with sender, subject and time. **Send or reply from your domain** “Reply to Jane from support@mydomain.com saying her order ships tomorrow.” Sends from your verified domain in the same thread, and can attach files. **Find out why an email bounced** “Why did yesterday’s invoice email bounce?” Reads the delivery events and explains the bounce, including whether the address is now suppressed. **Set up a new domain** “Add example.com to SendHQ and tell me which DNS records to create.” Adds the domain, lists the exact DNS records, and verifies them once you’ve published them. **Manage templates and drafts** “Draft a password-reset template with a code variable and send me a test.” Creates the template, renders it with sample data and sends a test to you. **Watch deliverability** “Show my delivery and bounce rates for this week.” Reports sent, delivered, bounced and complained counts, and any paused senders. Tools that send email or delete data are labelled, so you can set them to ask for approval in your assistant. [Full setup guide →](https://sendhq.cc/docs/mcp.md#section-2) Pricing / 04 #### Pay for the email operation you actually run. Two plans. Transactional or marketing mode. Pay monthly, or yearly at 10% off. No maze of add-ons, and no new stack every time you add a domain or product. PLAN / 01 ##### Starter $9 / month $97.20 / year — 10% off For products sending their first real traffic. - 50,000 emails / month - 25 verified domains - Inbox + outbox - Delivery and bounce tracking [Start with Starter ↗](https://sendhq.cc/app) PLAN / 02 · MOST POPULAR ##### Scale $39 / month $421.20 / year — 10% off For teams shipping serious volume. - 200,000 emails / month - 100 verified domains - Everything in Starter - Priority support [Build at scale ↗](https://sendhq.cc/app) REPUTATION RULE Accounts whose bounce or complaint rate remains above 3% for two consecutive weeks are suspended to protect deliverability for everyone. [Compare all plans, annual totals, and billing FAQ](https://sendhq.cc/pricing.md) FAQ / 05 #### The useful questions. The short version of how identities, domains, providers, and plans work. **Does SendHQ work with AI agents?** Yes. SendHQ is built for AI agents like Claude, Codex, Cursor, and OpenClaw. Its documented REST API uses a familiar Resend-style direct-send shape. Integrations should use a small server-side adapter and follow the migration guide for unsupported provider-specific fields. **Which mail provider does SendHQ use?** SendHQ runs on Amazon SES by default and is built on a pluggable provider layer, so providers can change through configuration instead of application rewrites. **Can I verify my own domains?** Yes. Each workspace can add and verify its own domains. SendHQ generates the SPF, DKIM, and DMARC records you need; you add them to DNS and SendHQ confirms verification. **Do I get a dashboard?** Yes. Every workspace includes a live inbox and outbox, domain management, API keys, and deliverability insights in the same interface. **How does pricing work?** Starter is $9/month for 50,000 emails and 25 domains; Scale is $39/month for 200,000 emails and 100 domains. Marketing is $19/month on Starter and $39/month on Scale with the same limits. Annual billing takes 10% off any plan, with the same monthly allowances. Account access #### Google signs you in. It does not read your Gmail. If you choose Google Sign-In, SendHQ receives your account identifier, email address, name, and profile image only to authenticate you, secure your session, display your profile, and provide support. SendHQ does not request Gmail messages, contacts, Drive files, calendars, or other sensitive Google data. Sign-In data is not sold, used for advertising, or used to send email. [Read the privacy policy](https://sendhq.cc/privacy.md) > Don’t integrate email again. Add the next thing you build to SendHQ. One integration · Everything connected #### Whatever needs to email, connects to SendHQ. Start with one domain. Keep every product, agent, and email workflow that comes next beautifully organized. [Start building with SendHQ ↗](https://sendhq.cc/app)