Resend vs Claude Code
The email API for developers — built by the Nodemailer team
vs. Anthropic's terminal-native coding agent — built for deep codebase work
Pricing tiers
Resend
Free
3,000 emails/month, 100 emails/day. 1 custom domain. Ideal for side projects.
Free
Pro — 50k
50,000 emails/month. 10 custom domains. Priority support.
$20/mo
Pro — 100k
100,000 emails/month. 10 custom domains.
$35/mo
Scale — 100k+
Tiered from 100k → 2.5M emails/month. Dedicated IP add-on available.
$90/mo
Scale — 2.5M
2.5M emails/month.
$1150/mo
Enterprise
3M+/month, dedicated IP included, SSO, custom contract.
Custom
Claude Code
API (pay-per-token)
Pay-per-token via Anthropic API. Sonnet: $3/$15 per 1M in/out. Opus: $15/$75. Best for heavy/team use.
$0 base (usage-based)
Claude Pro
$20/mo. Includes limited Claude Code usage via subscription (Sonnet). Heaviest users will hit caps.
$20/mo
Claude Team
$30/user/mo. Shared workspace, admin controls, priority support.
$30/mo
Claude Max
$200/mo. Higher Claude Code quotas + priority access to Opus.
$200/mo
Enterprise
Custom. SSO, audit logs, SOC 2, dedicated support, HIPAA-eligible.
Custom
Free-tier quotas head-to-head
Comparing free on Resend vs api-pay-per-use on Claude Code.
| Metric | Resend | Claude Code |
|---|---|---|
| custom domains | 1 domains | — |
| emails per day | 100 emails/day | — |
| emails per month | 3000 emails/month | — |
Features
Resend · 12 features
- Audiences — Contact list management with custom fields.
- Batch Send — Send up to 100 emails in one API call.
- Broadcasts — Bulk email campaigns with audiences, A/B testing, analytics.
- Dedicated IP — Add-on for high-volume senders. Auto warmup.
- Domains — DKIM/SPF/DMARC auto-verification. Per-domain analytics.
- Idempotency — Prevent duplicate sends with Idempotency-Key header.
- Logs + Analytics — Full email logs, delivery heatmap, events table.
- React Email — OSS library (3M+ downloads) to compose emails in React/JSX.
- Scheduled Send — scheduledAt parameter for future delivery.
- Send API — POST /emails endpoint to send. Supports attachments, scheduled send, idempotency…
- Suppressions — Auto-managed bounce + complaint list. API to add/remove.
- Webhooks — Email lifecycle events: sent, delivered, bounced, complained, opened, clicked.
Claude Code · 16 features
- Background Tasks — Long-running processes.
- Claude Agent SDK — Build custom agents on same primitives.
- claude CLI — Terminal command.
- Git Worktrees — Isolated worktree per session.
- Hooks — Lifecycle shell commands.
- IDE Extensions — VS Code + JetBrains + Zed.
- MCP Client — Connect any MCP server.
- Memory (CLAUDE.md) — Persistent per-project instructions.
- Native Tools — Bash, Read, Write, Edit, Grep, Glob, WebFetch.
- Plan Mode — Dry-run — Claude shows plan without executing.
- Prompt Caching — 90% discount on repeated context.
- Sandbox Modes — Safe execution of risky commands.
- Slash Commands — User-defined workflows.
- Task Tool (subagents) — Spawn parallel Claude subagents.
- TodoWrite Tool — Internal task tracking.
- WebSearch + WebFetch — Live internet access.
Developer interfaces
| Kind | Resend | Claude Code |
|---|---|---|
| CLI | Resend CLI | claude CLI |
| SDK | react-email, resend-go, resend-node, resend-php, resend-python, resend-ruby | Claude Agent SDK |
| REST | Resend REST API | — |
| MCP | — | MCP Client (built-in) |
| OTHER | SMTP Relay, Webhooks (Svix) | Claude Code Web, GitHub/PR Bridge, Hooks System, JetBrains Plugin, Slash Commands, VS Code Extension |
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