Email Inbox API + Sending by Sendmux
io.github.Sendmux/sendmux-mcp · Status: active
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- Registry name
io.github.Sendmux/sendmux-mcp- Package coordinate
pypi:sendmux-mcp- Version
1.6.1- Listed in the registry
- 2026-08-19
- Changed in the registry
- 2026-08-19
- First seen by tracevero
- 2026-08-06
- Vendor's website
- https://sendmux.ai/docs/guides/mcp
AI email inbox and sending tools with attachments, search, live events, and webhooks.
Vendor's own description, untranslated and unverified
Evidence for this page: The values on this page come from several collections. Each row therefore states its own origin. What the confidence levels mean
Measured values
| Credentials required | yes Raw declaration – Required secret variables (raw): SENDMUX_MAILBOX_API_KEY, SENDMUX_MANAGEMENT_API_KEY Raw declaration – Required secret headers (raw): confirmed absent Source: MCP-Register · collected on 2026-08-06 · derived |
|---|---|
| Execution location | local Raw declaration – Transports (raw): stdio, streamable-http Source: MCP-Register · collected on 2026-08-06 · derived |
| Path argument present | no Raw declaration – Path arguments (raw): confirmed absent Raw declaration – Path environment variables (raw): confirmed absent Source: MCP-Register · collected on 2026-08-06 · derived |
| Repository URL listed | yes Raw declaration – Repository (raw): https://github.com/Sendmux/sendmux-sdk Source: MCP-Register · collected on 2026-08-06 · derived |
| Field of use | epost Raw declaration – Description (raw): AI email inbox and sending tools with attachments, search, live events, and webhooks. Source: MCP-Register · collected on 2026-08-26 · derived |
| Version | 1.6.1 Source: MCP-Register · collected on 2026-08-19 · self-declared |
Position within the holdings
How many of the 25,100 published entries carry the same measured value. A reference figure, not an assessment.
- Credentials requiredyes4,365 of 25,100 carry this value (17 %)View these entries
- Execution locationlocal12,344 of 25,100 carry this value (49 %)View these entries
- Path argument presentno24,857 of 25,100 carry this value (99 %)View these entries
- Repository URL listedyes19,482 of 25,100 carry this value (78 %)View these entries
- Field of useepost515 of 25,100 carry this value (2.1 %)View these entries
All 5 values together are carried by 113 of 25,100 entries.
Where this server connects to
- Address as stated in the raw record
https://mcp.sendmux.ai/mcp- Host
mcp.sendmux.aiEntries carrying exactly this value: 1
Taken verbatim from the raw record. The registry does not call this address and does not infer a shared operator from a shared host.
This entry appears in these selections
- MCP servers requiring credentials4,365
- Locally executed MCP servers12,344
- MCP servers with a repository URL19,482
- Local MCP servers with a repository URL11,717
- MCP servers as a PyPI package only3,120
- Local MCP servers requiring credentials2,979
- MCP servers over stdio and streamable-http1,242
- MCP servers with credentials and a repository URL3,612
- Local MCP servers as a PyPI package only3,101
- MCP servers as a package and as an endpoint1,292
The source's raw values24
Evidence for this page: The values on this page come from several collections. Each row therefore states its own origin.
| Description (raw) | AI email inbox and sending tools with attachments, search, live events, and webhooks. Source: MCP-Register · collected on 2026-08-26 · self-declared |
|---|---|
| Environment variables (raw) | SENDMUX_MCP_SURFACES, SENDMUX_MAILBOX_API_KEY, SENDMUX_MANAGEMENT_API_KEY, SENDMUX_SENDING_API_KEY Source: MCP-Register · collected on 2026-08-06 · self-declared |
| Required secret variables (raw) | SENDMUX_MAILBOX_API_KEY, SENDMUX_MANAGEMENT_API_KEY Source: MCP-Register · collected on 2026-08-06 · self-declared |
| Transports (raw) | stdio, streamable-http Source: MCP-Register · collected on 2026-08-06 · self-declared |
| Path arguments (raw) | confirmed absent Source: MCP-Register · collected on 2026-08-06 · self-declared |
| Repository (raw) | https://github.com/Sendmux/sendmux-sdk Source: MCP-Register · collected on 2026-08-06 · self-declared |
| Package registries (raw) | pypi Source: MCP-Register · collected on 2026-08-06 · self-declared |
| Required secret headers (raw) | confirmed absent Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Path environment variables (raw) | confirmed absent Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Remote URLs (raw) | https://mcp.sendmux.ai/mcp Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Remote hosts (raw) | mcp.sendmux.ai Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Registry status message (raw) | confirmed absent Source: MCP-Register · collected on 2026-08-16 · self-declared |
| First listed in the registry (raw) | 2026-08-19 Source: MCP-Register · collected on 2026-08-19 · self-declared |
| Last changed in the registry (raw) | 2026-08-19 Source: MCP-Register · collected on 2026-08-19 · self-declared |
| Schema version of the raw record (raw) | https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Delivery form (raw) | paket und remote Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Repository platform (raw) | github Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Repository subfolder (raw) | packages/python/mcp Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Package identifiers (raw) | sendmux-mcp Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Package versions (raw) | 1.6.1 Source: MCP-Register · collected on 2026-08-19 · self-declared |
| Runtime hints (raw) | confirmed absent Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Environment variable formats (raw) | string Source: MCP-Register · collected on 2026-08-16 · self-declared |
| 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. Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Icon formats (raw) | confirmed absent Source: MCP-Register · collected on 2026-08-16 · self-declared |
Changes
| 2026-08-26 | Field of use: – → epost |
|---|---|
| 2026-08-26 | Description (raw): – → AI email inbox and sending tools with attachments, search, live events, and webhooks. |
| 2026-08-19 | Version: 1.5.0 → 1.6.1 |
| 2026-08-19 | Last changed in the registry (raw): 2026-07-22 → 2026-08-19 |
| 2026-08-19 | First listed in the registry (raw): 2026-07-22 → 2026-08-19 |
| 2026-08-19 | Package versions (raw): 1.5.0 → 1.6.1 |
| 2026-08-16 | Last changed in the registry (raw): – → 2026-07-22 |
| 2026-08-16 | First listed in the registry (raw): – → 2026-07-22 |
| 2026-08-16 | Registry status message (raw): – → – |
| 2026-08-16 | Schema version of the raw record (raw): – → https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json |
These are the 10 most recent changes to this entry. Full history
tracevero · https://tracevero.com/mcp/io-github-sendmux-sendmux-mcp