Here is your daily summary.
" }' ``` ### Step 2b: Email real users — verify a domain To send to anyone other than your own account email, verify a domain you own (`POST /api/v1/domains`, one DNS step, 1 included free), then send from `you@yourdomain.com` to any recipient. ### Step 3: Check delivery status ```bash curl https://api.aisend.app/api/v1/emails/{emailId} \ -H "Authorization: Bearer re_abc123..." ``` ### Agent Signup Details - **Endpoint**: `POST /api/v1/auth/agent-signup` - **Input**: `{ "name": string }` (1-100 characters) - **Output**: `{ token, apiKey, userId, email, expiresAt }` - **Rate limit**: 5 requests/minute per IP - **Token validity**: 365 days - **No password**: Agent accounts cannot use password login. Use the API key for all requests. - **Plan**: Starts on Free (3,000 emails/month). Upgrade via dashboard or API. --- ## API Reference ### Base URL ``` https://api.aisend.app/api/v1 (Resend-compatible alias: https://api.aisend.app) ``` ### Authentication All API requests require a Bearer token: ``` Authorization: Bearer re_your_api_key ``` ### Send Email ``` POST /api/v1/emails (or POST /emails — Resend-compatible alias, no /api/v1 prefix) ``` Request body (real-user send — `from` is a domain you've verified): ```json { "from": "you@yourdomain.com", "to": "user@example.com", "subject": "Hello from AISend", "html": "Your email content
", "text": "Plain text fallback" } ``` The `to` field accepts a single email string or an array of emails. Before you verify a domain, the only valid `from` is the shared `onboarding@aisend.app` and the only valid `to` is your own account email (test-to-self); any other combination from the shared address returns 403. ### Get Email Status ``` GET /api/v1/emails/:id ``` Returns email delivery status: queued, sending, sent, delivered, bounced, failed. ### List Emails ``` GET /api/v1/emails ``` Query parameters: `page`, `limit`, `status`, `search` ### Create API Key ``` POST /v1/api-keys ``` ### List API Keys ``` GET /v1/api-keys ``` ### Revoke API Key ``` DELETE /v1/api-keys/:id ``` ### Idempotency Include an `Idempotency-Key` header to prevent duplicate sends: ``` Idempotency-Key: unique-request-id ``` --- ## SDKs ### Node.js / TypeScript ```typescript import { AISend } from 'aisend-email'; const aisend = new AISend('re_your_api_key'); await aisend.emails.send({ from: 'you@yourdomain.com', // a domain you verified (1 included free) to: 'user@example.com', subject: 'Hello from AISend', html: 'Your first email!
' }); // No domain yet? Send from 'onboarding@aisend.app' to your own account email. ``` ### cURL ```bash curl -X POST https://api.aisend.app/api/v1/emails \ -H "Authorization: Bearer re_your_api_key" \ -H "Content-Type: application/json" \ -d '{ "from": "you@yourdomain.com", "to": "user@example.com", "subject": "Hello from AISend", "html": "Your first email!
" }' # No domain yet? Use "from": "onboarding@aisend.app" with "to" = your account email. ``` ### Python ```python import requests requests.post( "https://api.aisend.app/api/v1/emails", headers={"Authorization": "Bearer re_your_api_key"}, json={ "from": "you@yourdomain.com", # a domain you verified (1 included free) "to": "user@example.com", "subject": "Hello from AISend", "html": "Your first email!
", }, ) # No domain yet? Send from "onboarding@aisend.app" to your own account email. ``` --- ## Email Validation API Validate email addresses before sending to reduce bounces and improve deliverability. ### Validate Single Email ```bash curl -X POST https://api.aisend.app/v1/email-validation/validate \ -H "Authorization: Bearer re_your_api_key" \ -H "Content-Type: application/json" \ -d '{"email": "user@example.com"}' ``` Response: ```json { "email": "user@example.com", "valid": true, "checks": { "format": true, "mx": true, "disposable": false, "role": false, "catchAll": null }, "risk": "low" } ``` ### Validate Batch (up to 100) ```bash curl -X POST https://api.aisend.app/v1/email-validation/validate \ -H "Authorization: Bearer re_your_api_key" \ -H "Content-Type: application/json" \ -d '{"emails": ["user@example.com", "test@tempmail.com"]}' ``` ### Validation Checks - **format**: RFC 5322 email format validation - **mx**: MX record lookup (does the domain accept email?) - **disposable**: Detects temporary/disposable email providers - **role**: Detects role-based addresses (info@, admin@, support@) - **catchAll**: Catch-all domain detection (best-effort) ### Risk Levels - **high**: Invalid format, no MX records, or disposable domain - **medium**: Role-based address or catch-all domain - **low**: Passes all checks --- ## Team / Organizations Create organizations, invite team members, and collaborate on shared API keys, domains, and billing. - **Roles**: Owner (full access + billing), Admin (manage members + API keys), Member (send emails + view) - **Invite flow**: Owner/admin sends invite by email → recipient accepts → joins org - **API**: `POST /v1/orgs`, `GET /v1/orgs`, `POST /v1/orgs/:id/invites`, `POST /v1/orgs/invites/:token/accept` --- ## Pricing | Plan | Price | Emails/month | Validations/month | Key Features | |------|-------|-------------|-------------------|--------------| | Free | $0/mo | 3,000 | 25 | Shared sending domain, dashboard, API keys | | Pro | $14/mo | 50,000 | 5,000 | Custom domains, webhooks, transactional templates | | Business | $63/mo | 100,000 | 25,000 | Unlimited domains, team members | | Scale | $149/mo | 500,000 | 100,000 | All features | | Enterprise | Custom | Unlimited | Unlimited | Custom integrations, dedicated account manager | No credit card required for the free tier. Paid plans (Pro, Business, Scale) charge immediately — there is no free trial; the free 3,000/mo tier is the trial, and you can cancel a paid plan anytime. Custom domains and production volume start on Pro. --- ## Migration Guides ### From Resend 1. Sign up at aisend.app 2. Replace `api.resend.com` with `api.aisend.app` in your code 3. Replace your Resend API key with an AISend key (re_* format) 4. A basic send works unchanged — AISend uses the same from/to/subject/html/text request format ### From SendGrid 1. Sign up at aisend.app 2. Install the AISend SDK 3. Replace SendGrid API calls with AISend's REST format 4. Set up domains in the AISend dashboard ### From Mailgun 1. Sign up at aisend.app (no credit card needed) 2. Install the AISend SDK 3. Replace Mailgun API calls with AISend's REST format 4. Migrate domain DNS records --- ## Frequently Asked Questions **What is AISend?** AISend is a transactional email API platform for developers and AI agents. It provides a REST API and SDKs for sending transactional emails, with custom domains, delivery tracking, webhooks, and validation. **How is AISend different from Resend?** AISend uses the same request format as Resend, so migrating is a one-line base-URL change. It is about 30% cheaper at the Pro tier (50,000 emails for $14/mo vs Resend's $20), and it ships an MCP server so AI agents can send email as a native tool. **How is AISend different from SendGrid?** AISend offers a modern, simpler API focused on transactional email, delivery tracking, and production sender setup. No bloated platform. **What email provider does AISend use?** AISend sends through AWS SES. Bounces and complaints are processed via SES notifications and suppressed automatically. **Is there a free tier?** Yes. 3,000 emails/month on the shared sending domain. Custom domains, higher validation volume, and production usage start on Pro. No credit card required. **Is there a free trial for paid plans?** No. Paid plans are charged immediately when you subscribe. The free plan is the trial — 3,000 emails a month and one verified sending domain, no credit card, for as long as you want. Upgrade once you've confirmed AISend works for you, and cancel anytime. **Can AI agents use AISend?** Yes. AI agents can sign up programmatically via POST /v1/auth/agent-signup. One call returns a token and API key — no browser or email verification needed. **How do I sign in?** AISend supports email/password login and Google OAuth sign-in. AI agents can sign up programmatically via the agent signup API. **Can I migrate from Resend?** Yes. AISend's API is Resend-compatible. Change your API endpoint URL and key — no code changes needed. --- ## Links - Homepage: https://aisend.app - Pricing: https://aisend.app/pricing - AI Agents: https://aisend.app/agents - Blog: https://aisend.app/blog - Alternatives: https://aisend.app/alternatives - Guides: https://aisend.app/guides - Contact: hello@aisend.app