generated: '2026-08-14' method: derived status: candidate source: >- Derived from the seven OpenAPI documents in openapi/. No Mailosaur MCP server was found: mcp.mailosaur.com does not resolve (DNS failure, curl exit 6), https://mailosaur.com/.well-known/mcp.json returns 404, the sitemap (265 URLs) and the published llms.txt (26,652 bytes) name no MCP endpoint or package, the github.com/mailosaur organization publishes no MCP repository, and no `@mailosaur/*` MCP package exists on npm. Mailosaur's agent-facing page (https://mailosaur.com/give-ai-tools) markets the REST API to agent builders but does not ship an MCP server. deployment: mode: none auth: api-key verified: derived note: >- mode is `none` because nobody ships a server — this file is an API Evangelist candidate tool list derived from the provider's OpenAPI, not a surface an agent can reach today. No endpoint or install command is recorded, because inventing either would misrepresent Mailosaur as running an agent surface it does not run. server: name: mailosaur transport: http url: null authentication: type: http-basic note: >- Every backing operation authenticates with HTTP Basic Auth, API key as the username and an empty password. See authentication/mailosaur-authentication.yml. tools: - name: list_messages description: List message summaries in an inbox, newest first. source_operation: openapi/mailosaur-messages-api-openapi.yml#listMessages - name: search_messages description: Search an inbox for messages matching sender, recipient, subject or body criteria, optionally waiting for arrival. source_operation: openapi/mailosaur-messages-api-openapi.yml#searchMessages - name: get_message description: Retrieve the full detail of a single message, including links, codes, images and headers. source_operation: openapi/mailosaur-messages-api-openapi.yml#getMessage - name: create_message description: Create and optionally send a message to a verified email address. source_operation: openapi/mailosaur-messages-api-openapi.yml#createMessage - name: forward_message description: Forward a captured message to a verified email address. source_operation: openapi/mailosaur-messages-api-openapi.yml#forwardMessage - name: reply_to_message description: Send a reply to a captured email or SMS message. source_operation: openapi/mailosaur-messages-api-openapi.yml#replyToMessage - name: delete_message description: Permanently delete a single message and its attachments. source_operation: openapi/mailosaur-messages-api-openapi.yml#deleteMessage - name: delete_all_messages description: Permanently delete every message in an inbox. source_operation: openapi/mailosaur-messages-api-openapi.yml#deleteAllMessages - name: generate_message_previews description: Generate rendered screenshots of an email in the specified email clients. source_operation: openapi/mailosaur-messages-api-openapi.yml#generateMessagePreviews - name: list_servers description: List the inboxes (servers) on the account. source_operation: openapi/mailosaur-servers-api-openapi.yml#listServers - name: create_server description: Create a new inbox (server). source_operation: openapi/mailosaur-servers-api-openapi.yml#createServer - name: get_server description: Retrieve the detail of a single inbox (server). source_operation: openapi/mailosaur-servers-api-openapi.yml#getServer - name: update_server description: Update the attributes of an inbox (server). source_operation: openapi/mailosaur-servers-api-openapi.yml#updateServer - name: delete_server description: Permanently delete an inbox (server) and everything in it. source_operation: openapi/mailosaur-servers-api-openapi.yml#deleteServer - name: get_server_password description: Retrieve the SMTP/POP3/IMAP password for an inbox (server). source_operation: openapi/mailosaur-servers-api-openapi.yml#getServerPassword - name: list_devices description: List the virtual TOTP authenticator devices on the account. source_operation: openapi/mailosaur-devices-api-openapi.yml#listDevices - name: create_device description: Create a virtual TOTP authenticator device from a shared secret. source_operation: openapi/mailosaur-devices-api-openapi.yml#createDevice - name: delete_device description: Delete a virtual TOTP authenticator device. source_operation: openapi/mailosaur-devices-api-openapi.yml#deleteDevice - name: get_device_otp description: Get the current one-time passcode for a stored authenticator device. source_operation: openapi/mailosaur-devices-api-openapi.yml#getDeviceOtp - name: get_otp_by_shared_secret description: Get the current one-time passcode for a shared secret without storing a device. source_operation: openapi/mailosaur-devices-api-openapi.yml#getOtpBySharedSecret - name: get_spam_analysis description: Run a SpamAssassin spam analysis against a captured message. source_operation: openapi/mailosaur-analysis-api-openapi.yml#getSpamAnalysis - name: get_deliverability_report description: Run a deliverability analysis (SPF/DKIM/DMARC, blocklists, content) against a captured message. source_operation: openapi/mailosaur-analysis-api-openapi.yml#getDeliverabilityReport - name: get_attachment description: Download a message attachment. source_operation: openapi/mailosaur-files-api-openapi.yml#getAttachment - name: get_email_file description: Download the raw EML source of an email. source_operation: openapi/mailosaur-files-api-openapi.yml#getEmailFile - name: get_email_preview description: Download a rendered email preview screenshot. source_operation: openapi/mailosaur-files-api-openapi.yml#getEmailPreview - name: list_email_clients description: List the email clients available for generating previews. source_operation: openapi/mailosaur-previews-api-openapi.yml#listEmailClients - name: get_usage_limits description: Retrieve current account usage limits and consumption. source_operation: openapi/mailosaur-usage-api-openapi.yml#getUsageLimits - name: get_usage_transactions description: Retrieve the last 31 days of transactional usage. source_operation: openapi/mailosaur-usage-api-openapi.yml#getUsageTransactions coverage: rest_operations_total: 28 tools_derived: 28 tools_published_by_provider: 0