Resend

Resend, operated by the US company Plus Five Five, Inc., sells transactional email through a REST API and an SMTP relay, plus contact-based marketing email. Plans are monthly USD subscriptions with a free-forever tier of 3,000 emails a month, capped at 100 a day, and no free trial.

Transactional email

API documentation MCP server

Card checked 24 September 2026 · next scheduled re-check within 6 months · Report outdated information

Overall rating

68.8coverage 100 % · evidence strongVisit resend.com

Strengths, weaknesses and fit

Strengths

Free forever: 3,000 emails per month (Transactional email)
Official MCP server
Official agent skills published
Signed webhooks with replay protection
OAuth 2.0, including access on behalf of other users' accounts
Restricted API keys with scoped permissions
Official SDKs in 9 languages

Weaknesses

Limited channels: Email only
Limited review base (31 reviews across aggregators)

Not a fit if…

you want several channels from one provider
you want many independent customer reviews before choosing

Generated from threshold rules over the dated facts below, not written by hand. Rules with unverified inputs are skipped.

Transactional email: Resend Email API and SMTP relay (Transactional Email plans)

checked 24 September 2026

Support	NativeOfficial docsAPI reference introduction
Outbound	YesOfficial docsAPI reference introduction Send emails with SMTP
Inbound	YesOfficial docsReceiving Emails What are Resend account quotas and limits?
SMTP relay	YesOfficial docsSend emails with SMTP Resend pricing (Markdown)
Inbound parsing	YesOfficial docsReceiving Emails Webhook event types
Templates	YesOfficial docsUsing Templates Compose with the Template editor
Event webhooks	YesOfficial docsWebhook event types Managing Webhooks
Suppression mgmt	YesOfficial docsEmail Suppressions
Dedicated IP	YesOfficial docsResend pricing (Markdown)How do Dedicated IPs work?
Log retention	YesOfficial docsWhat are Resend account quotas and limits?Resend pricing
Scheduling	YesOfficial docsSchedule Email
Attachments	YesOfficial docsAttachments
Payment notifications	PartialOfficial docsUsing Automations Automations trigger
Native payment-provider integration	NoOfficial docsResend integrations Resend documentation index (llms.txt)

Country	Availability	Payment scenarios
United States	YesOfficial docsResend pricing Choosing a Region	PartialOfficial docsAutomations trigger Using Templates
Brazil	YesOfficial docsResend pricing Choosing a Region	PartialOfficial docsAutomations trigger Using Templates
Mexico	YesOfficial docsResend pricing Choosing a Region	PartialOfficial docsAutomations trigger Using Templates

Resend pricing

checked 24 September 2026

Prices as printed on the vendor's pages, in the vendor's currency. Scenario totals are computed from the listed components; carrier and Meta pass-through fees are shown separately and are not in the totals.

Transactional email

Same prices in United States, Brazil and Mexico.

Plan	Price	Source
Free	Free	Official docs Resend pricing (Markdown) What is Resend Pricing What are Resend account quotas and limits? Resend pricing checked 24 September 2026
Pro (50,000 emails)	$20.00 / month	Official docs Resend pricing (Markdown) What is Resend Pricing What are Resend account quotas and limits? Resend pricing checked 24 September 2026
Pro (100,000 emails)	$35.00 / month	Official docs Resend pricing (Markdown) What is Resend Pricing What are Resend account quotas and limits? checked 24 September 2026
Scale (100,000 emails)	$90.00 / month	Official docs Resend pricing (Markdown) What is Resend Pricing Resend pricing checked 24 September 2026
Scale (200,000 emails)	$160.00 / month	Official docs Resend pricing (Markdown) What is Resend Pricing checked 24 September 2026
Scale (500,000 emails)	$350.00 / month	Official docs Resend pricing (Markdown) What is Resend Pricing checked 24 September 2026
Scale (1,000,000 emails)	$650.00 / month	Official docs Resend pricing (Markdown) What is Resend Pricing checked 24 September 2026
Scale (1,500,000 emails)	$825.00 / month	Official docs Resend pricing (Markdown) What is Resend Pricing checked 24 September 2026
Scale (2,500,000 emails)	$1,150.00 / month	Official docs Resend pricing (Markdown) What is Resend Pricing checked 24 September 2026
Enterprise	Contact sales	Official docs Resend pricing (Markdown) What is Resend Pricing Resend pricing checked 24 September 2026

10,000 emails / month: $20.00 on Pro (50,000 emails)
100,000 emails / month: $35.00 on Pro (100,000 emails)

Transactional email: free access

Free forever: See detailsOfficial docsResend pricing (Markdown)What are Resend account quotas and limits?

Trial: NoneOfficial docsResend pricing

Developer & AI readiness

checked 24 September 2026

API keys	YesOfficial docsAPI reference introduction Manage API keys
Bearer token	YesOfficial docsAPI reference introduction Resend OpenAPI specification
Basic auth	NoOfficial docsResend OpenAPI specification Send emails with SMTP
OAuth 2.0	YesOfficial docsBuilding an OAuth client for Resend Resend OAuth authorization server metadata
OAuth grant types	authorization_code, refresh_tokenOfficial docsBuilding an OAuth client for Resend Resend OAuth authorization server metadata
Restricted (scoped) keys	YesOfficial docsCreate API key Manage API keys
Key rotation	YesOfficial docsResend llms.txt Manage API keys
Official SDKs	Node.js, PHP, Laravel, Python, Ruby, Go, Java, Rust, .NETOfficial docsOfficial SDKs Resend llms.txt
OpenAPI spec	resend.com/openapi.yamlOfficial docsResend OpenAPI specification Official SDKs
llms.txt	resend.com/llms.txtOfficial docsResend llms.txt Resend documentation index (llms.txt)
AI-oriented docs	resend.com/docs/ai-onboardingOfficial docsAI onboarding
Test mode	PartialOfficial docsSend Test Emails Does Resend require production approval?
Idempotency keys	YesOfficial docsIdempotency Keys Send emails with SMTP

MCP server

Official · remote and local

Official docsResend MCP server (resend-mcp)

Webhook signatures

Signed, with replay protection

Official docs

Agent skills

OfficialOfficial docs

Claude CodeResend plugin (resend-skills: resend, react-email, agent-email-inbox, email-best-practices, resend-cli)
CursorResend plugin
CodexResend plugin
GitHub Copilotresend-skills (npx skills add resend/resend-skills)

Built-in AI features

AI inside the product, not an API for building your own.

AI content generationYesOfficial docs
AI chatbotNoOfficial docs
Answers from your knowledge baseNoOfficial docs
AI APINoOfficial docs
AI personalizationNoOfficial docs
AI analyticsNoOfficial docs
Ready-made AI agentNoOfficial docs

Sources: Resend pricing (Markdown) · Compose with the Template editor · Resend OpenAPI specification · Using Templates · Deliverability Insights · checked 24 September 2026

No-code and manual editing

Workflow builder	YesOfficial docsUsing Automations Resend pricing (Markdown)
Template editor	YesOfficial docsCompose with the Template editor Using Templates
Chatbot builder	NoOfficial docsResend documentation index (llms.txt)
Edit code and visual together	YesOfficial docsAutomations connections MCP Server

Works with AI app builders

Server code needed on every builder: YesOfficial docsSend emails with Bolt.new and Resend Managing Webhooks

Platform	Native integration	Official guide	Secrets
Claude Code	YesOfficial docsMCP Server claude-plugins-official marketplace manifest	resend.com/docs/mcp-serverOfficial docsMCP Server	OAuth login through /mcp (remote MCP), or RESEND_API_KEY / 'Authorization: Bearer re_…' headerOfficial docsMCP Server
Cursor	YesOfficial docsMCP Server Resend plugin in the Cursor Marketplace	resend.com/docs/mcp-serverOfficial docsMCP Server	OAuth login to the remote MCP server, or an Authorization header with the API key in the MCP configOfficial docsMCP Server
Replit	YesOfficial, otherReplit Agent connectors Send emails with Replit and Resend	resend.com/docs/replit-integrationOfficial docsSend emails with Replit and Resend	Replit connector / Integrations page (Resend API key and from address)Official docsSend emails with Replit and Resend
Lovable	YesOfficial, otherConnect your app to Resend (Lovable)Send emails with Lovable and Resend	docs.lovable.dev/integrations/resendOfficial, otherConnect your app to Resend (Lovable)	Lovable connector (Display name + API Key field, keys starting re_); Resend's older guide describes Supabase secretsOfficial, otherConnect your app to Resend (Lovable)Send emails with Lovable and Resend
Bolt	PartialOfficial, otherSend emails from your Bolt app Send emails with Bolt.new and Resend	support.bolt.new/cloud/database/send-emailsOfficial, otherSend emails from your Bolt app	Bolt database → Secrets (RESEND_API_KEY)Official, otherSend emails from your Bolt app
v0	YesOfficial docsSend emails with v0 and Resend Resend for Vercel (Vercel Marketplace)	resend.com/docs/v0-integrationOfficial docsSend emails with v0 and Resend	v0 project environment variables (set by the Vercel Marketplace integration)Official docsSend emails with v0 and Resend

Paying and getting support locally

How customers pay the provider itself — separate from payment scenarios for your buyers.

United States

Billing methods	credit cardOfficial docsResend pricing Resend Terms of Service
Local payment methods	NoneOfficial docsResend pricing
Billing currencies	USDOfficial docsResend pricing (Markdown)Resend pricing
Local entity / tax invoice	YesOfficial docsWhere to find Resend documents like DPA or W-9 Managing Billing
Interface languages	enOfficial docsResend pricing Resend llms.txt
Docs languages	enOfficial docsResend documentation index (llms.txt)
Support phone	NoneOfficial docsResend Support (llms.txt)

Brazil

Billing methods	credit cardOfficial docsResend pricing Resend Terms of Service
Local payment methods	NoneOfficial docsResend pricing
Billing currencies	USDOfficial docsResend pricing (Markdown)Resend pricing
Interface languages	enOfficial docsResend pricing Resend llms.txt
Docs languages	enOfficial docsResend documentation index (llms.txt)
Support phone	NoneOfficial docsResend Support (llms.txt)

Mexico

Billing methods	credit cardOfficial docsResend pricing Resend Terms of Service
Local payment methods	NoneOfficial docsResend pricing
Billing currencies	USDOfficial docsResend pricing (Markdown)Resend pricing
Interface languages	enOfficial docsResend pricing Resend llms.txt
Docs languages	enOfficial docsResend documentation index (llms.txt)
Support phone	NoneOfficial docsResend Support (llms.txt)

Compliance & data protection

checked 24 September 2026

What the vendor documents publicly. This is not a legal assessment and not a certification.

Data processing agreement	YesOfficial docsResend Data Processing Addendum Resend GDPR overview
Subprocessor list	YesOfficial docsResend subprocessors Resend Data Processing Addendum
Data residency options	NoOfficial docsResend GDPR overview Choosing a Region
Residency regions	United States (all stored data)Official docsResend GDPR overview Choosing a Region
Transfer mechanisms	EU Standard Contractual Clauses (Module Two and Module Three), UK Addendum, EU SCCs with Swiss modifications, EU-U.S. Data Privacy Framework and UK ExtensionOfficial docsResend GDPR overview Resend Data Processing Addendum
Security documentation	SOC 2 Type II (Vanta & Advantage Partners, period 1 February 2025 to 1 February 2026), Annual third-party penetration test (Oneleet, Letter of Attestation), AES-256 encryption at rest, TLS 1.3 or higher in transitOfficial docsResend Security Where to find Resend documents like DPA or W-9
Use of customer data for AI training	YesOfficial docsResend GDPR overview Resend Security
Local law page (BR)	PartialOfficial docsResend Data Processing Addendum
Local law page (MX)	PartialOfficial docsResend Data Processing Addendum

How the rating is built

Methodology 2026.09-pre · weights of unknown criteria are redistributed; coverage shows how much of the score rests on verified facts.
Criterion	Weight	Result	Basis
Pricing & Free Tier (25)		80.8 / 100coverage 100 %
Free access (transactional-email)	12.50	84 %	free forever: 3,000 emails / monthsrc src src
Scenario price (transactional-email)	10.00	72 %	10,000 emails / month: USD 20.00 vs peer median USD 15.00 (13 providers); 100,000 emails / month: USD 35.00 vs peer median USD 74.85 (13 providers)src src src
Pricing transparency (transactional-email)	2.50	100 %	public self servesrc src src
Developer & AI Readiness (28)		90.8 / 100coverage 100 %
MCP	7.70	100 %	official (both)src src src
Agent skills	2.10	100 %	officialsrc src src
Assistant apps	0.70	50 %	1 official assistant appsrc src
Llms.txt	0.70	100 %	publishedsrc src
OpenAPI	0.70	100 %	publishedsrc src src
AI docs	0.70	100 %	publishedsrc
Native AI features	1.40	20 %	1 of 6 native AI featuressrc src src
Scoped keys	1.40	100 %	yessrc src
OAuth	4.48	100 %	yessrc src src
Webhook signing	1.96	100 %	signed with replay protectionsrc src src
SDKs	2.24	100 %	9 official SDK languagessrc src
Test mode	2.24	50 %	partialsrc src
Idempotency	1.68	100 %	yessrc src
Reputation & Reviews (25)		54.4 / 100coverage 100 %
Review platforms	25.00	54 %	global data: g2 4.8/5 (10), trustpilot 2.5/5 (21)
Channel Coverage (10)		20.0 / 100coverage 100 %
Channel groups	10.00	20 %	1 channel groups (native = 1, partner = 0.5)src src src
Category Functionality (8)		86.0 / 100coverage 100 %
SMTP relay (transactional-email)	0.96	100 %	yessrc src
Inbound parsing (transactional-email)	0.80	100 %	yessrc src
Templates (transactional-email)	0.80	100 %	yessrc src
Event webhooks (transactional-email)	1.12	100 %	yessrc src src
Suppression mgmt (transactional-email)	0.80	100 %	yessrc
Dedicated IP (transactional-email)	0.64	100 %	yessrc src
Log retention (transactional-email)	0.64	100 %	yessrc src
Scheduling (transactional-email)	0.48	100 %	yessrc
Attachments (transactional-email)	0.32	100 %	yessrc
Payment notifications (transactional-email)	0.64	50 %	partialsrc src src
Native payment-provider integration (transactional-email)	0.80	0 %	nosrc src src
Localization & Regional Support (2)		33.3 / 100coverage 100 %
Languages	2.00	33 %	1 of 3 target languages (en, pt, es)src src src
Built-in AI Agent & Chatbot Deployment (2)		0.0 / 100coverage 100 %
Ready-to-deploy AI agent	2.00	0 %	nosrc

Weights and rules: rating methodology.

Sources

Resend Terms of Service — legal, checked 23 September 2026
Resend Data Processing Addendum — legal, checked 23 September 2026
Resend subprocessors — legal, checked 23 September 2026
Resend Security — other, checked 23 September 2026
Resend GDPR overview — legal, checked 23 September 2026
Where to find Resend documents like DPA or W-9 — docs, checked 23 September 2026
Introducing Resend — blog, checked 23 September 2026
Resend on Y Combinator — other, checked 23 September 2026
Resend pricing — pricing, checked 24 September 2026
Resend pricing (Markdown) — pricing, checked 24 September 2026
What is Resend Pricing — docs, checked 24 September 2026
What are Resend account quotas and limits? — docs, checked 24 September 2026
Managing Billing — docs, checked 23 September 2026
Resend Support (llms.txt) — docs, checked 23 September 2026
Resend llms.txt — docs, checked 24 September 2026
Resend documentation index (llms.txt) — docs, checked 24 September 2026
API reference introduction — docs, checked 23 September 2026
Usage Limits — docs, checked 23 September 2026
Send emails with SMTP — docs, checked 23 September 2026
Receiving Emails — docs, checked 23 September 2026
Using Templates — docs, checked 23 September 2026
Compose with the Template editor — docs, checked 23 September 2026
Email Suppressions — docs, checked 23 September 2026
How do Dedicated IPs work? — docs, checked 23 September 2026
Schedule Email — docs, checked 23 September 2026
Attachments — docs, checked 23 September 2026
Idempotency Keys — docs, checked 24 September 2026
Send Test Emails — docs, checked 23 September 2026
Does Resend require production approval? — docs, checked 23 September 2026
Deliverability Insights — docs, checked 23 September 2026
Choosing a Region — docs, checked 23 September 2026
Using Automations — docs, checked 23 September 2026
Automations trigger — docs, checked 23 September 2026
Automations connections — docs, checked 23 September 2026
Resend integrations — docs, checked 23 September 2026
Chat SDK adapter — docs, checked 23 September 2026
Managing Webhooks — docs, checked 23 September 2026
Webhook event types — docs, checked 23 September 2026
Verify Webhooks Requests — docs, checked 24 September 2026
Retries and Replays — docs, checked 24 September 2026
Verifying webhooks manually (Svix) — docs, checked 24 September 2026
Manage API keys — docs, checked 23 September 2026
Create API key — docs, checked 23 September 2026
Building an OAuth client for Resend — docs, checked 24 September 2026
Resend OAuth authorization server metadata — docs, checked 24 September 2026
Resend MCP server protected-resource metadata — docs, checked 24 September 2026
Official SDKs — docs, checked 23 September 2026
Resend OpenAPI specification — docs, checked 24 September 2026
AI onboarding — docs, checked 24 September 2026
MCP Server — docs, checked 24 September 2026
Resend MCP discovery document — docs, checked 24 September 2026
resend/resend-mcp — repo, checked 23 September 2026
resend-mcp on npm — registry, checked 24 September 2026
Official MCP Registry search for "resend" — registry, checked 24 September 2026
Resend agent-skills discovery index — docs, checked 23 September 2026
resend/resend-skills — repo, checked 23 September 2026
Resend Skill — docs, checked 23 September 2026
Resend connector in the Claude connector directory — marketplace, checked 23 September 2026
claude-plugins-official marketplace manifest — marketplace, checked 23 September 2026
Resend plugin in the Cursor Marketplace — marketplace, checked 23 September 2026
Send emails with Lovable and Resend — docs, checked 23 September 2026
Send emails with v0 and Resend — docs, checked 23 September 2026
Send emails with Bolt.new and Resend — docs, checked 23 September 2026
Send emails with Replit and Resend — docs, checked 23 September 2026
Connect your app to Resend (Lovable) — platform-docs, checked 23 September 2026
Replit Agent connectors — platform-docs, checked 23 September 2026
Send emails from your Bolt app — platform-docs, checked 23 September 2026
Resend for Vercel (Vercel Marketplace) — marketplace, checked 23 September 2026