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Nova Inbox Agent by Nova (CIVAI) MCP Server

answering

Nova Inbox Agent by Nova (CIVAI) is answering right now. Last checked 12 min ago. It exposes 7 tools.

Read and send mail from your Nova Inbox (@nova.civai.co) for OTPs, directory signups, and inbound m…

Uptime history 48 days of history · worst day 44%
48 days agonow
97.8%
Uptime 24h
89 of 91 checks
7
Tools
read from the server
579 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 14

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 28 September 2026. No other catalogue keeps this.

28 Sep 7 tools appeared compose_message, converse, get_attachment and 4 more
28 Sep 7 tools disappeared nova_inbox__compose_message, nova_inbox__converse, nova_inbox__get_attachment and 4 more

Nova Inbox Agent by Nova (CIVAI) does not always answer

Over the last week it answered 98.9% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.

run in your terminal
claude mcp add nova-inbox-agent --transport http https://nova.civai.co/mcp/agents/nova-inbox-agent
Settings → Connectors → Add custom connector, then paste this address
https://nova.civai.co/mcp/agents/nova-inbox-agent
~/.codex/config.toml
[mcp_servers.nova-inbox-agent]
url = "https://nova.civai.co/mcp/agents/nova-inbox-agent"
.cursor/mcp.json
{
  "mcpServers": {
    "nova-inbox-agent": {
      "url": "https://nova.civai.co/mcp/agents/nova-inbox-agent"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "nova-inbox-agent": {
      "type": "http",
      "url": "https://nova.civai.co/mcp/agents/nova-inbox-agent"
    }
  }
}

Available tools 7

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

attachment
get_attachment
Download one email attachment as base64 (by drive_id or index on the message).
compose
compose_message
Send outbound email from the user's @nova.civai.co address (deterministic; no LLM draft).
converse
converse
Reply conversationally when the request is ambiguous or needs clarification.
inbox
get_inbox_address
Return the user's Nova Inbox email address (e.g. [email protected]).
message
read_message
Read full body of one Nova Inbox message by id or list index (includes attachment metadata).
messages
list_messages
List messages in the signed-in user's Nova Inbox (@nova.civai.co).
thread
list_thread
List all messages in an email thread (inbound + outbound), oldest first.

Tools removed

Tools this server used to expose. Anything built against them stopped working on the day they went.

nova_inbox__compose_message
removed 28 Sep 2026
nova_inbox__converse
removed 28 Sep 2026
nova_inbox__get_attachment
removed 28 Sep 2026
nova_inbox__get_inbox_address
removed 28 Sep 2026
nova_inbox__list_messages
removed 28 Sep 2026
nova_inbox__list_thread
removed 28 Sep 2026
nova_inbox__read_message
removed 28 Sep 2026

Endpoints

URLTransportStateLatencyChecked
https://nova.civai.co/mcp/agents/nova-inbox-agent streamable-http answering 568 ms 12 min ago

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Nova Inbox Agent by Nova (CIVAI) — questions

Answers built from our own checks of this server.

What can Nova Inbox Agent by Nova (CIVAI) do?
It exposes 7 tools, read directly from the server on our last check. Among them: compose_message, converse, get_attachment, get_inbox_address, list_messages, list_thread and 1 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Nova Inbox Agent by Nova (CIVAI) working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 89 of 91 checks got a reply (97.8%), average response time 579 ms. The bar chart above shows every period we have measured.
Did Nova Inbox Agent by Nova (CIVAI) ever remove tools?
Yes. nova_inbox__compose_message, nova_inbox__converse, nova_inbox__get_attachment, nova_inbox__get_inbox_address and 3 more are no longer exposed — we recorded the date each one disappeared. A tool vanishing usually means a breaking change for anything that depended on it.
How do I connect Nova Inbox Agent by Nova (CIVAI)?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Nova Inbox Agent by Nova (CIVAI) need an API key?
No. Nova Inbox Agent by Nova (CIVAI) completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 7 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Nova Inbox Agent by Nova (CIVAI)?
It answers our handshake in 579 ms on average, which is faster than 19% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.