Mailosaur MCP
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| MAILOSAUR_API_KEY | Yes | Your Mailosaur API key |
Capabilities
Features and capabilities supported by this server
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| mailosaur_messages_getA | Wait for and return the first full message matching criteria. Best for test flows where an email/SMS may arrive shortly. |
| mailosaur_messages_listC | List message summaries for a server. |
| mailosaur_messages_searchC | Search message summaries by sender, recipient, subject, or body. |
| mailosaur_messages_get_by_idB | Retrieve the full detail for a single message by ID. |
| mailosaur_messages_createC | Create a message and optionally send it to a verified external address. |
| mailosaur_messages_forwardC | Forward an email message to a verified address. |
| mailosaur_messages_replyC | Reply to an email message. |
| mailosaur_messages_deleteB | Permanently delete a message and its attachments. |
| mailosaur_messages_delete_allC | Permanently delete all messages and attachments on a server. |
| mailosaur_servers_listA | List all Mailosaur servers. |
| mailosaur_servers_createC | Create a Mailosaur server. |
| mailosaur_servers_getB | Get a Mailosaur server by ID. |
| mailosaur_servers_get_passwordB | Get the SMTP/POP3 password for a Mailosaur server. |
| mailosaur_servers_updateC | Update a Mailosaur server. |
| mailosaur_servers_deleteB | Permanently delete a Mailosaur server and all contained messages. |
| mailosaur_servers_generate_email_addressB | Generate a random email address for a Mailosaur server. |
| mailosaur_files_get_emailC | Download a message as an EML file. Returns base64 content. |
| mailosaur_files_get_attachmentC | Download a message attachment. Returns base64 content. |
| mailosaur_files_get_previewB | Download a generated email preview screenshot. Returns base64 content. |
| mailosaur_analysis_spamC | Run spam analysis for a message. |
| mailosaur_analysis_deliverabilityC | Run deliverability analysis for a message. |
| mailosaur_messages_generate_previewsC | Generate screenshots of an email rendered in selected email clients. |
| mailosaur_previews_list_email_clientsA | List email clients available for generated email previews. |
| mailosaur_devices_listA | List Mailosaur virtual security devices used for TOTP testing. |
| mailosaur_devices_createB | Create a Mailosaur virtual security device from a base32 shared secret. |
| mailosaur_devices_otpB | Retrieve the current TOTP code for a saved device ID or base32 shared secret. |
| mailosaur_devices_deleteC | Permanently delete a Mailosaur virtual security device. |
| mailosaur_usage_limitsB | Retrieve account usage limits. Requires an account-level API key. |
| mailosaur_usage_transactionsB | Retrieve recent transaction usage. Requires an account-level API key. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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