---
bezeichner: "io.github.Sendmux/sendmux-mcp"
art: "mcp_server"
slug: "io-github-sendmux-sendmux-mcp"
paketkoordinate: "npm:sendmux-mcp"
status: "aktiv"
homepage: "https://sendmux.ai/docs/guides/mcp"
erhebungsstand: "2026-10-11T01:17:01.851Z"
namensraum: "io.github.Sendmux"
registerseite: "https://tracevero.com/mcp/io-github-sendmux-sendmux-mcp"
abgerufen_am: "2026-10-11"
zugangsdaten_erforderlich: true
ausfuehrungsort: "lokal"
dateisystem_pfadargument: false
quelloffen_einsehbar: true
einsatzgebiet: "epost"
roh_beschreibung: "AI email inbox and sending tools with attachments, search, live events, and webhooks."
version: "2.2.0"
roh_umgebungsvariablen: "SENDMUX_MCP_SURFACES, SENDMUX_MAILBOX_API_KEY, SENDMUX_MANAGEMENT_API_KEY, SENDMUX_SENDING_API_KEY"
roh_geheime_pflichtvariablen: "SENDMUX_MAILBOX_API_KEY, SENDMUX_MANAGEMENT_API_KEY"
roh_transportarten: "stdio, stdio, streamable-http"
roh_pfadargumente: ""
roh_repository_url: "https://github.com/Sendmux/sendmux-sdk"
roh_paketquellen: "npm, pypi"
roh_geheime_pflichtkopfzeilen: ""
roh_pfad_umgebungsvariablen: ""
roh_remote_adressen: "https://mcp.sendmux.ai/mcp"
roh_remote_hosts: "mcp.sendmux.ai"
roh_statusmeldung: ""
roh_veroeffentlicht_am: "2026-10-02"
roh_aktualisiert_am: "2026-10-02"
roh_schemafassung: "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json"
roh_bereitstellungsform: "paket und remote"
roh_repository_quelle: "github"
roh_repository_unterordner: "packages/python/mcp"
roh_paketbezeichner: "sendmux-mcp"
roh_paketversionen: "1.0.0, 2.2.0"
roh_laufzeithinweise: ""
roh_umgebungsformate: "string"
roh_umgebungsbeschreibungen: "SENDMUX_MAILBOX_API_KEY=Mailbox API key for Mailbox API and Sending API tools. · SENDMUX_MANAGEMENT_API_KEY=Root API key for Management API tools. · SENDMUX_MCP_SURFACES=Tool surfaces to run locally. · SENDMUX_SENDING_API_KEY=Optional send-capable smx_mbx_ key or owner-approved smx_agent_ token for Sending API tools when it differs from the Mailbox API key."
roh_symbolformate: ""
roh_verbindungswege: "{\"packages\":[{\"registryType\":\"npm\",\"identifier\":\"sendmux-mcp\",\"version\":\"1.0.0\",\"transport\":\"stdio\",\"environment\":[],\"additional_arguments_declared\":false},{\"registryType\":\"pypi\",\"identifier\":\"sendmux-mcp\",\"version\":\"2.2.0\",\"transport\":\"stdio\",\"environment\":[{\"name\":\"SENDMUX_MCP_SURFACES\",\"description\":\"Tool surfaces to run locally.\",\"format\":\"string\",\"required\":true,\"secret\":false},{\"name\":\"SENDMUX_MAILBOX_API_KEY\",\"description\":\"Mailbox API key for Mailbox API and Sending API tools.\",\"format\":\"string\",\"required\":true,\"secret\":true},{\"name\":\"SENDMUX_MANAGEMENT_API_KEY\",\"description\":\"Root API key for Management API tools.\",\"format\":\"string\",\"required\":true,\"secret\":true},{\"name\":\"SENDMUX_SENDING_API_KEY\",\"description\":\"Optional send-capable smx_mbx_ key or owner-approved smx_agent_ token for Sending API tools when it differs from the Mailbox API key.\",\"format\":\"string\",\"required\":false,\"secret\":true}],\"additional_arguments_declared\":false}],\"remotes\":[{\"url\":\"https://mcp.sendmux.ai/mcp\",\"transport\":\"streamable-http\",\"headers\":[]}]}"
---

# Email Inbox API + Sending by Sendmux

## Measured values

| Property | Value | Source | Collected on | Level of trust | Raw declaration |
| --- | --- | --- | --- | --- | --- |
| Required secrets declared | true | MCP-Register | 2026-08-06T13:57:41.838Z | abgeleitet | roh_geheime_pflichtvariablen: SENDMUX_MAILBOX_API_KEY, SENDMUX_MANAGEMENT_API_KEY; roh_geheime_pflichtkopfzeilen: |
| Execution location | lokal | MCP-Register | 2026-08-06T13:57:41.838Z | abgeleitet | roh_transportarten: stdio, stdio, streamable-http |
| Path argument present | false | MCP-Register | 2026-08-06T13:57:41.838Z | abgeleitet | roh_pfadargumente: ; roh_pfad_umgebungsvariablen: |
| Repository URL listed | true | MCP-Register | 2026-08-06T13:57:41.838Z | abgeleitet | roh_repository_url: https://github.com/Sendmux/sendmux-sdk |
| Field of use, derived from the vendor description | epost | MCP-Register | 2026-08-26T16:45:01.514Z | abgeleitet | roh_beschreibung: AI email inbox and sending tools with attachments, search, live events, and webhooks. |
| Description (raw) | AI email inbox and sending tools with attachments, search, live events, and webhooks. | MCP-Register | 2026-08-26T16:45:01.514Z | selbstauskunft |  |
| Declared version | 2.2.0 | MCP-Register | 2026-10-03T01:17:02.187Z | selbstauskunft |  |
| Environment variables (raw) | SENDMUX_MCP_SURFACES, SENDMUX_MAILBOX_API_KEY, SENDMUX_MANAGEMENT_API_KEY, SENDMUX_SENDING_API_KEY | MCP-Register | 2026-08-06T13:57:41.838Z | selbstauskunft |  |
| Required secret variables (raw) | SENDMUX_MAILBOX_API_KEY, SENDMUX_MANAGEMENT_API_KEY | MCP-Register | 2026-08-06T13:57:41.838Z | selbstauskunft |  |
| Transports (raw) | stdio, stdio, streamable-http | MCP-Register | 2026-10-01T01:17:01.643Z | selbstauskunft |  |
| Path arguments (raw) |  | MCP-Register | 2026-08-06T13:57:41.838Z | selbstauskunft |  |
| Repository (raw) | https://github.com/Sendmux/sendmux-sdk | MCP-Register | 2026-08-06T13:57:41.838Z | selbstauskunft |  |
| Package registries (raw) | npm, pypi | MCP-Register | 2026-10-01T01:17:01.643Z | selbstauskunft |  |
| Required secret headers (raw) |  | MCP-Register | 2026-08-16T01:17:01.420Z | selbstauskunft |  |
| Path environment variables (raw) |  | MCP-Register | 2026-08-16T01:17:01.420Z | selbstauskunft |  |
| Remote URLs (raw) | https://mcp.sendmux.ai/mcp | MCP-Register | 2026-08-16T01:17:01.420Z | selbstauskunft |  |
| Remote hosts (raw) | mcp.sendmux.ai | MCP-Register | 2026-08-16T01:17:01.420Z | selbstauskunft |  |
| Registry status message (raw) |  | MCP-Register | 2026-08-16T01:17:01.420Z | selbstauskunft |  |
| First listed in the registry (raw) | 2026-10-02 | MCP-Register | 2026-10-03T01:17:02.187Z | selbstauskunft |  |
| Last changed in the registry (raw) | 2026-10-02 | MCP-Register | 2026-10-03T01:17:02.187Z | selbstauskunft |  |
| Schema version of the raw record (raw) | https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json | MCP-Register | 2026-08-16T01:17:01.420Z | selbstauskunft |  |
| Delivery form (raw) | paket und remote | MCP-Register | 2026-08-16T01:17:01.420Z | selbstauskunft |  |
| Repository platform (raw) | github | MCP-Register | 2026-08-16T01:17:01.420Z | selbstauskunft |  |
| Repository subfolder (raw) | packages/python/mcp | MCP-Register | 2026-08-16T01:17:01.420Z | selbstauskunft |  |
| Package identifiers (raw) | sendmux-mcp | MCP-Register | 2026-08-16T01:17:01.420Z | selbstauskunft |  |
| Package versions (raw) | 1.0.0, 2.2.0 | MCP-Register | 2026-10-03T01:17:02.187Z | selbstauskunft |  |
| Runtime hints (raw) |  | MCP-Register | 2026-08-16T01:17:01.420Z | selbstauskunft |  |
| Environment variable formats (raw) | string | MCP-Register | 2026-08-16T01:17:01.420Z | selbstauskunft |  |
| Environment variable descriptions (raw) | SENDMUX_MAILBOX_API_KEY=Mailbox API key for Mailbox API and Sending API tools. · SENDMUX_MANAGEMENT_API_KEY=Root API key for Management API tools. · SENDMUX_MCP_SURFACES=Tool surfaces to run locally. · SENDMUX_SENDING_API_KEY=Optional send-capable smx_mbx_ key or owner-approved smx_agent_ token for Sending API tools when it differs from the Mailbox API key. | MCP-Register | 2026-08-16T01:17:01.420Z | selbstauskunft |  |
| Icon formats (raw) |  | MCP-Register | 2026-08-16T01:17:01.420Z | selbstauskunft |  |
| Connection paths (source structure) | {"packages":[{"registryType":"npm","identifier":"sendmux-mcp","version":"1.0.0","transport":"stdio","environment":[],"additional_arguments_declared":false},{"registryType":"pypi","identifier":"sendmux-mcp","version":"2.2.0","transport":"stdio","environment":[{"name":"SENDMUX_MCP_SURFACES","description":"Tool surfaces to run locally.","format":"string","required":true,"secret":false},{"name":"SENDMUX_MAILBOX_API_KEY","description":"Mailbox API key for Mailbox API and Sending API tools.","format":"string","required":true,"secret":true},{"name":"SENDMUX_MANAGEMENT_API_KEY","description":"Root API key for Management API tools.","format":"string","required":true,"secret":true},{"name":"SENDMUX_SENDING_API_KEY","description":"Optional send-capable smx_mbx_ key or owner-approved smx_agent_ token for Sending API tools when it differs from the Mailbox API key.","format":"string","required":false,"secret":true}],"additional_arguments_declared":false}],"remotes":[{"url":"https://mcp.sendmux.ai/mcp","transport":"streamable-http","headers":[]}]} | MCP-Register | 2026-10-03T01:17:02.187Z | selbstauskunft |  |

## Links

- Namespace: [[namensraum/io-github-sendmux|io.github.Sendmux]]

---

- Registry page: <https://tracevero.com/mcp/io-github-sendmux-sendmux-mcp>
- Retrieved on: 2026-10-11
