Connectors · Email & messaging
Resend MCP server for AI agents.
actionlake is an MCP gateway: one remote MCP server that connects Claude and other MCP clients to Resend and the rest of your systems. It gives your agent 113 Resend actions (52 reads, 42 writes and 19 that wait for a confirmation) and holds the Resend credential itself, so the agent never does. It paces Resend's limits and records every call.
100,000 free calls a month. No card, no email, no password: press Start a free sandbox on the next screen and keep the key it shows you.
claude mcp add --transport http actionlake https://connect.actionlake.com/mcpdo { action: "resend.emails_list", intent: "check which Resend account is connected"}# List Sent Emails · read · 1 upstream call- 113actionsin one signed file
- 52readlook, never change
- 42writecreate and update
- 19wait for a yesdestructive, confirmed first
Set up
Connect Resend in three steps.
- 01
Add actionlake to Claude.
Run the command once in Claude Code; its consent page can create a free sandbox: 100,000 calls a month, no card. In the Claude app, add a custom connector with the URL below and paste your key on the consent page. Creating a new sandbox from the Claude app is not yet tested by us.
https://connect.actionlake.com/mcp - 02
Connect Resend.
API key. No consent screen: your agent can connect it for you, but the key then passes through your chat. To keep it out of the model's context, paste it in the console instead. actionlake stores what you paste write-only, sealed under your tenant's key.
api_keyResend API key (re_...)api_baseWhere your Resend lives: your api base
account { op: "connections.requirements", service: "resend" } # free: exactly what to paste, and what is found for you - 03
Make the first call. Check before a write.
Ask in plain words; Claude picks the action. Before anything changes,
checkvalidates the call and prices it, for free.do { action: "resend.emails_list" }# list sent emails · read · 1 upstream callcheck { action: "resend.emails_send", input: { … } }# free: inputs, permissions, cost and confirmations, nothing sent
Resend at a glance
- Sign-in
- API key. No consent screen: your agent can connect it for you, but the key then passes through your chat. To keep it out of the model's context, paste it in the console instead.
- You provide
api_key- Setup fields
api_base- Limits we pace to
- 10 calls a second, per connection
- API covered
- Resend API unversioned
api.resend.com - Built from
- Resend's documentation, read 19 September 2026resend.com
- Service file
- Version 1.0.0, signed (Ed25519)
- Cached reads
- 51 of 52 reads, for up to an hour; a write clears what it affects
- Ready-made plans
- 8 in the store
- Shared entities
- 3, so ask can line Resend up with your other systems
- Data
- Processed and stored in Sydney, Australia. No US region yet
Capabilities
What an AI agent can do in Resend.
113 actions in 14 areas. Every one carries its effect, so a key can allow the reads and hold the rest.
- 52readlook, never change
- 42writecreate and update
- 19destructivewait for a confirmation
Contacts
178 read · 6 write · 3 destructive
Retrieve Contact · List Contacts · List Contact Segments · Update Contact Topics
Automation
156 read · 7 write · 2 destructive
List Automations · Create Automation · List Automation Runs · Retrieve Automation
Email
149 read · 4 write · 1 destructive
Retrieve Sent Email · Send Email · Send Batch Emails · List Sent Emails
Segment
116 read · 3 write · 2 destructive
Retrieve Segment · List Segment Contacts · List Segments · Create Segment
Webhooks
105 read · 3 write · 2 destructive
List Webhook Event Attempts · List Webhook Events · Create Webhook · List Webhooks
Broadcast
104 read · 4 write · 2 destructive
List Broadcasts · Create Broadcast · List Broadcast Recipients · Retrieve Broadcast
Domains
93 read · 5 write · 1 destructive
List Domains · Claim Domain · Create Domain · Retrieve Domain Claim
Template
72 read · 4 write · 1 destructive
List Templates · Create Template · Retrieve Template · Update Template
6 more areas · 20 actions
- Suppression 6
- Topic 5
- API keys 4
- Logs 2
- Oauth 2
- Usage 1
Top actions
The Resend API, shaped for agents.
The ids your agent types, what each does, and the one name it shares with other systems. 89 of Resend's 91 action names are shared with at least one other connector, so an agent learns them once.
| Action | What it does | Effect | Same name in |
|---|---|---|---|
resend.emails_getRetrieve Sent Email | Retrieve a single sent email. | read | comm.email.get26 connectors |
resend.contacts_getRetrieve Contact | Retrieve a contact by id OR by email address — the same path segment takes either. | read | comm.audience_member.get17 connectors |
resend.emails_sendSend Email | Send a transactional email. `to`/`cc`/`bcc`/`reply_to` each take one address or an array. | write | comm.email.send32 connectors |
resend.contacts_listList Contacts | List contacts, optionally narrowed to one segment. | read | comm.audience_member.list23 connectors |
resend.contact_segments_listList Contact Segments | List the segments a contact belongs to. | read | comm.audience_segment.list22 connectors |
resend.segments_getRetrieve Segment | Retrieve a single segment. | read | comm.audience_segment.get16 connectors |
resend.emails_cancelCancel Email | Cancel a scheduled email before it sends. | destructive | comm.email.delete15 connectors |
resend.contact_topics_getRetrieve Contact Topics | List a contact's topic subscriptions. | read | comm.audience.list26 connectors |
resend.domains_listList Domains | Retrieve the team's sending domains. | read | comm.sending_domain.list18 connectors |
resend.domains_createCreate Domain | Add a sending domain. The response carries the DNS records to publish. | write | comm.sending_domain.create15 connectors |
resend.broadcasts_listList Broadcasts | Retrieve the team's broadcasts. | read | comm.campaign.list41 connectors |
resend.broadcasts_createCreate Broadcast | Create a broadcast to a segment. Set `send: true` to send or schedule it immediately. | write | comm.campaign.create38 connectors |
Try it
Prompts to paste into Claude.
Each one names the Resend actions it will call, so you know what it reads and what it changes before you send it.
- Readread
List Sent Emails in Resend and tell me what stands out.
calls
resend.emails_list - Planwrite
Add a contact, subscribe it and send the welcome mail in Resend.
calls
resend.contacts_createresend.contact_segments_addresend.contact_topics_updateresend.emails_sendresend.emails_get - Planwrite
Update a template, test it, then publish in Resend. Ask me before anything is sent or changed.
calls
resend.templates_getresend.templates_updateresend.emails_sendresend.emails_getresend.templates_publish - Writewrite
Send Email in Resend. Show me exactly what you will send before you save it.
calls
resend.emails_send
The plan store
Ready-made plans for Resend.
8 plans in the store. Install one and your agent runs it by name; the reply says which connections are still missing. A schedule can run a plan on a timetable. There are no triggers or webhooks, by design.
Weekly email delivery and engagement report
Use it when Someone asks how email sending performed over the past week or why delivery looks worse than usual.
Add a contact, subscribe it and send the welcome mail
Use it when A person has just signed up and should be stored, subscribed and welcomed in one pass.
Onboard and verify a new sending domain
Use it when A new customer or product domain needs to start sending mail through Resend end to end.
A person decides
Create a new Resend API key scoped to domain with sending permission.
Find and replay failed webhook deliveries
Use it when A webhook consumer was down or erroring and the events it missed need to be pushed through again.
Draft, review and send a segment broadcast
Use it when A marketing or product email must go to a whole segment and a person has to sign off before it sends.
A person decides
Send broadcast 'subject' to number of items contacts in segment segment id.
Suppress the hard bounces from a broadcast
Use it when A broadcast has finished and the hard bounces it produced need to be taken out of circulation.
A person decides
Permanently suppress number of emails hard-bounced addresses from broadcast 'name'.
Update a template, test it, then publish
Use it when A transactional email template has been edited and must be proofed in a real inbox before it goes live.
A person decides
Test of template 'name' was sent to test to and is last event. Publish this version live?
Pull back scheduled emails before they go out
Use it when Queued or scheduled email must be stopped before its send time, for example after a bad link or wrong data was noticed.
A person decides
Cancel number of queued scheduled emails. Reason: reason, 'not given'.
account { op: "plans.install", slug: "resend-weekly-delivery-report" }
# then ask for it by name; a schedule can run it on a timetableGovernance for Resend
Destructive actions wait for a yes.
19 Resend actions are destructive. These are all of them:
- Cancel Email
resend.emails_cancel - Delete Contact
resend.contacts_delete - Remove Contact from Segment
resend.contact_segments_delete - Delete Segment
resend.segments_delete - Delete Domain
resend.domains_delete - Delete Template
resend.templates_delete - Delete Broadcast
resend.broadcasts_delete - Delete Topic
resend.topics_delete - Delete Audience (deprecated)
resend.audiences_delete - Remove Suppression
resend.suppressions_delete - Remove Batch Suppressions
resend.suppressions_delete_batch - Delete Automation
resend.automations_delete - Delete Contact Property
resend.contact_properties_delete - Delete Webhook
resend.webhooks_delete - Cancel Broadcast
resend.broadcasts_cancel - Delete Event
resend.events_delete - Delete API Key
resend.api_keys_delete - Revoke OAuth Grant
resend.oauth_grants_revoke - Rotate Webhook Signing Secret
resend.webhooks_rotate_signing_secret
A destructive action runs only with confirm: true. Under the human policy the agent cannot confirm for itself: the run stops until a named person approves, in the console or from a signed link in an email. The cap on a key is refused before the call is sent, never after.
Cancel Email?
intent: the user asked me to cancel Email
account { op: "keys.create", name: "resend-agent", allowed_actions: ["resend.*"], cap_calls: 2000, confirm_policy: "human_for_writes", approval_rules: [ { match: "resend.emails_cancel", approver: "[email protected]" }, { match: "resend.contacts_delete", approver: "[email protected]" }, { match: "resend.contact_segments_delete", approver: "[email protected]" } ]}Cost
What Resend costs on actionlake.
Every Resend action is one upstream call, the only thing actionlake bills. Searching, check, cost, account and any call Resend refused with 401, 403, 429 or a 5xx are free. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000.
- 1upstream call per actionall 113 Resend actions
- 28actions pageeach page of a long list is one call
- 51reads can be cacheda cache hit costs nothing
- 100,000calls a month, freepaid plans from US$49 a month for 250,000
Action index
Every Resend action.
113 actions by area: the id your agent calls, what it does, and its effect.
Contacts17
resend.contact_imports_getRetrieve Contact Importreadresend.contact_imports_listList Contact Importsreadresend.contact_properties_createCreate Contact Propertywriteresend.contact_properties_deleteDelete Contact Propertydestructiveresend.contact_properties_getRetrieve Contact Propertyreadresend.contact_properties_listList Contact Propertiesreadresend.contact_properties_updateUpdate Contact Propertywriteresend.contact_segments_addAdd Contact to Segmentwriteresend.contact_segments_deleteRemove Contact from Segmentdestructiveresend.contact_segments_listList Contact Segmentsreadresend.contact_topics_getRetrieve Contact Topicsreadresend.contact_topics_updateUpdate Contact Topicswriteresend.contacts_createCreate Contactwriteresend.contacts_deleteDelete Contactdestructiveresend.contacts_getRetrieve Contactreadresend.contacts_listList Contactsreadresend.contacts_updateUpdate Contactwrite
Automation15
resend.automation_runs_getRetrieve Automation Runreadresend.automation_runs_listList Automation Runsreadresend.automations_createCreate Automationwriteresend.automations_deleteDelete Automationdestructiveresend.automations_duplicateDuplicate Automationwriteresend.automations_getRetrieve Automationreadresend.automations_listList Automationsreadresend.automations_stopStop Automationwriteresend.automations_updateUpdate Automationwriteresend.events_createCreate Eventwriteresend.events_deleteDelete Eventdestructiveresend.events_getRetrieve Eventreadresend.events_listList Eventsreadresend.events_sendSend Eventwriteresend.events_updateUpdate Eventwrite
Email14
resend.emails_attachments_getRetrieve Sent Email Attachmentreadresend.emails_attachments_listList Sent Email Attachmentsreadresend.emails_cancelCancel Emaildestructiveresend.emails_getRetrieve Sent Emailreadresend.emails_listList Sent Emailsreadresend.emails_metrics_getRetrieve Email Metricsreadresend.emails_sendSend Emailwriteresend.emails_send_batchSend Batch Emailswriteresend.emails_shareShare Emailwriteresend.emails_updateUpdate Emailwriteresend.received_emails_attachments_getRetrieve Received Email Attachmentreadresend.received_emails_attachments_listList Received Email Attachmentsreadresend.received_emails_getRetrieve Received Emailreadresend.received_emails_listList Received Emailsread
Segment11
resend.audiences_createCreate Audience (deprecated)writeresend.audiences_deleteDelete Audience (deprecated)destructiveresend.audiences_getRetrieve Audience (deprecated)readresend.audiences_listList Audiences (deprecated)readresend.segment_contacts_listList Segment Contactsreadresend.segments_createCreate Segmentwriteresend.segments_deleteDelete Segmentdestructiveresend.segments_getRetrieve Segmentreadresend.segments_listList Segmentsreadresend.segments_metrics_getRetrieve Segment Metricsreadresend.segments_updateUpdate Segmentwrite
Webhooks10
resend.webhook_event_attempts_listList Webhook Event Attemptsreadresend.webhook_events_getRetrieve Webhook Eventreadresend.webhook_events_listList Webhook Eventsreadresend.webhook_events_replayReplay Webhook Eventwriteresend.webhooks_createCreate Webhookwriteresend.webhooks_deleteDelete Webhookdestructiveresend.webhooks_getRetrieve Webhookreadresend.webhooks_listList Webhooksreadresend.webhooks_rotate_signing_secretRotate Webhook Signing Secretdestructiveresend.webhooks_updateUpdate Webhookwrite
Broadcast10
resend.broadcasts_cancelCancel Broadcastdestructiveresend.broadcasts_clicked_links_listList Broadcast Clicked Linksreadresend.broadcasts_createCreate Broadcastwriteresend.broadcasts_deleteDelete Broadcastdestructiveresend.broadcasts_duplicateDuplicate Broadcastwriteresend.broadcasts_getRetrieve Broadcastreadresend.broadcasts_listList Broadcastsreadresend.broadcasts_recipients_listList Broadcast Recipientsreadresend.broadcasts_sendSend Broadcastwriteresend.broadcasts_updateUpdate Broadcastwrite
Domains9
resend.domain_claims_createClaim Domainwriteresend.domain_claims_getRetrieve Domain Claimreadresend.domain_claims_verifyVerify Domain Claimwriteresend.domains_createCreate Domainwriteresend.domains_deleteDelete Domaindestructiveresend.domains_getRetrieve Domainreadresend.domains_listList Domainsreadresend.domains_updateUpdate Domainwriteresend.domains_verifyVerify Domainwrite
Template7
resend.templates_createCreate Templatewriteresend.templates_deleteDelete Templatedestructiveresend.templates_duplicateDuplicate Templatewriteresend.templates_getRetrieve Templatereadresend.templates_listList Templatesreadresend.templates_publishPublish Templatewriteresend.templates_updateUpdate Templatewrite
Suppression6
resend.suppressions_createAdd Suppressionwriteresend.suppressions_create_batchAdd Batch Suppressionswriteresend.suppressions_deleteRemove Suppressiondestructiveresend.suppressions_delete_batchRemove Batch Suppressionsdestructiveresend.suppressions_getRetrieve Suppressionreadresend.suppressions_listList Suppressionsread
Topic5
resend.topics_createCreate Topicwriteresend.topics_deleteDelete Topicdestructiveresend.topics_getRetrieve Topicreadresend.topics_listList Topicsreadresend.topics_updateUpdate Topicwrite
API keys4
resend.api_keys_createCreate API Keywriteresend.api_keys_deleteDelete API Keydestructiveresend.api_keys_listList API Keysreadresend.api_keys_updateUpdate API Keywrite
Logs2
resend.logs_getRetrieve Logreadresend.logs_listList Logsread
Oauth2
resend.oauth_grants_listList OAuth Grantsreadresend.oauth_grants_revokeRevoke OAuth Grantdestructive
Usage1
resend.usage_getRetrieve Usageread
Questions
The Resend MCP server, answered.
Is there a Resend MCP server for Claude?
Yes. actionlake is an MCP gateway: a remote MCP server that gives Claude, or another MCP client, 113 Resend actions across contacts, automation, email and segment, through the same eight tools it uses for every other connector. actionlake is independent; it is not made or endorsed by Resend.
What do I need to connect Resend?
Resend API key (re_...). Plus your api base. The free call account { op: "connections.requirements", service: "resend" } lists exactly what to paste.
Can an AI agent delete or change things in Resend?
Only if its key allows it, and only with an explicit confirmation. 19 Resend actions are destructive, including cancel Email, delete Contact and remove Contact from Segment. Each runs only with confirm: true. Under the human confirm policy, or an approval rule on the key, the run waits until a named person approves it.
Will an AI agent use up my Resend API limit?
actionlake paces every call to the limits in the Resend service file: 10 calls a second per connection. Repeated reads are answered from cache (51 Resend actions can be), which never reaches Resend.
What does a Resend action cost?
One upstream call, the only unit actionlake bills. A list that pages bills one call per page (28 Resend actions page). Cache hits, searches, dry runs and calls Resend refused with 401, 403, 429 or a 5xx are free. The Free plan includes 100,000 calls a month with no card. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000.
Which Resend API does it cover?
The Resend API unversioned at api.resend.com by default, or the base URL set when you connect. It is built from Resend's documentation as read on 19 September 2026. 113 actions in 14 areas, each one in the signed service file (version 1.0.0).
Does actionlake keep my Resend data, and where?
actionlake processes and stores data in Sydney, Australia; there is no US region yet. Reads may be cached for up to an hour, and a write clears the reads it affects. Each run's request and response is kept, sealed, for your plan's trace window: 1 day on Free, 3 days on Starter, 7 days on Pro, 14 days on Team, 30 days on Business and 30 days on Enterprise. Your Resend credential is sealed under your tenant's key, never logged and never returned. Your traffic is not used to train models.
Which AI clients can use it?
Claude Code, tested by us end to end, and the Claude app as a custom connector, tested by us with an existing key. Other MCP clients that support remote servers over Streamable HTTP (MCP revisions 2025-06-18 and 2025-11-25) and OAuth dynamic client registration, or a bearer header, should connect the same way; we have not tested them. Or plain REST, under the same action names.
Give your agent Resend today.
Start free - 100,000 calls/month, no card. No signup. Hard caps on every key. Cached answers are free.
