mcp-registry/com.neblla/neblla · v2.4.0
As of 2026-10-17 09:07 UTC, the Neblla MCP server is up with a Glimind reliability score of 92/100 (grade A). Over the last 30 days it answered 100% of Glimind's liveness checks. It had 3 outages in 90 days, with a median recovery of 4 minutes.
Build and publish multiplayer apps and games on Neblla: scaffold, edit files, ship to the gallery.
Claude Code
claude mcp add --transport http neblla-mcp-server https://neblla.com/mcp
Claude Desktop · Windsurf · Cline (mcpServers JSON)
{
"mcpServers": {
"neblla-mcp-server": {
"type": "http",
"url": "https://neblla.com/mcp"
}
}
}
Third-party server, listed as discovered. Review its source before installing.
1 tool definition(s) exceed ~1,200 tokens each (largest: neblla_update_app, ~6,387).
Move long reference material out of descriptions (link a doc or expose a resource), drop repeated examples, and collapse large enums. Trimming these to ~600 tokens saves ~5,787 tokens every session.
109 of 109 tool(s) carry no readOnlyHint/destructiveHint annotations.
Annotate read-only tools with {"readOnlyHint": true}. Agents and gateways can then run them without a confirmation prompt, and route around destructive ones.
109 tools on one server. Tool-selection accuracy drops as the menu grows, and some clients (e.g. Cursor) cap the number of active tools.
Group tools by task into smaller servers or toolsets, and merge near-duplicates behind one tool with a mode parameter.
158 parameter(s) across 49 tool(s) have no description.
Add a "description" to each parameter with its format and an example ("ISO 8601 date, e.g. 2026-10-17"). This is the commonest cause of wrong arguments on the first call.
37 tool(s) look like they change state (create/send/delete/pay…) but declare no destructiveHint.
Set annotations {"readOnlyHint": false, "destructiveHint": true|false, "idempotentHint": …}. Clients use these to ask the user before a side effect and to auto-approve safe reads.
6 tool(s) have parameters with no type (no type/enum/anyOf/$ref).
Give every parameter a "type" (or "enum"/"anyOf"). Untyped parameters make models guess — strings for numbers, objects for arrays.
Loading this server's tool list costs an agent ~37,519 tokens before any work — more than 100% of MCP servers.
Split rarely-used tools into a separate server or a toolset the client can enable, or expose one "search tools" entry point. Many agents load every connected server's tools into every request.
Handshake + tools/list takes ~1,813 ms.
Serve tools/list from memory, keep the process warm, and host close to your users. Every new agent session pays this before its first call.
In the last 30 days: 2 tool(s) removed and 36 schema change(s).
Add new tools or optional parameters instead of renaming or removing; deprecate first (say so in the description) and remove later. Agents cache tool contracts.
No tool declares an outputSchema.
Declare outputSchema and return structuredContent (MCP 2025-06-18+). Agents can then parse results without guessing, and chain tools reliably.
Paste-ready definitions with the problems above fixed. Changes marked verify need a human look. 49 tool(s) still need parameter descriptions written by someone who knows the API. All of them as JSON: /v1/readiness/mcp-registry%2Fcom.neblla%2Fneblla/fixes
{
"name": "neblla_archive_app",
"description": "Archive an app nobody uses: its data is bundled onto the CDN and the active records are cleared from Neblla's database. It stays in the gallery and is restored automatically the next time anyone opens it (first open is slower). Neblla also does this on its own for free apps with no developer or user activity for 30 days; apps with an active subscription are exempt.",
"inputSchema": {
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"appId"
],
"properties": {
"appId": {
"type": "string",
"description": "The app public ID"
}
},
"additionalProperties": false
},
"annotations": {
"readOnlyHint": false,
"destructiveHint": true,
"idempotentHint": true
}
}{
"name": "neblla_ban_settings",
"description": "Read the message a banned user sees in this app, and the one a terminated user sees, or change them with `bannedMessage` / `terminatedMessage` (\"\" puts Neblla's default back). A banned user reads it above a form to write to you; a terminated one has no form, so its message should not point at one.",
"inputSchema": {
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"appId"
],
"properties": {
"appId": {
"type": "string",
"description": "The app public ID"
},
"bannedMessage": {
"type": "string",
"maxLength": 4000,
"description": "New message shown to banned users"
},
"terminatedMessage": {
"type": "string",
"maxLength": 4000,
"description": "New message shown to terminated users"
}
},
"additionalProperties": false
},
"annotations": {
"readOnlyHint": false,
"destructiveHint": false,
"idempotentHint": true
}
}{
"name": "neblla_booking",
"description": "Bookings (business template), the administration side: action \"createSlot\" { set, start, end?, capacity, title?, repeat? } — repeat is a calendar rule (the usual RFC 5545 RRULE): { freq: \"daily\"|\"weekly\"|\"monthly\"|\"yearly\", interval?, byDay? ([\"MO\",\"WE\"]; monthly \"2TU\" = second Tuesday, \"-1FR\" = last Friday), byMonthDay? (15, -1 = last day), byMonth?, until? (a date: that whole day) or count?, except? (dates left out), timeZone? (IANA: keeps the local hour when the clocks change) } or an RRULE s",
"inputSchema": {
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"appId",
"action",
"set"
],
"properties": {
"to": {
"type": "string"
},
"end": {
"type": "string"
},
"min": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
]
},
"set": {
"type": "string"
},
"from": {
"type": "string"
},
"site": {
"type": [
"string",
"null"
]
},
"slot": {
"type": "string"
},
"step": {
"type": "integer"
},
"appId": {
"type": "string"
},
"scope": {
"enum": [
"one",
"following",
"all"
],
"type": "string"
},
"staff": {
"type": [
"string",
"null"
]
},
"start": {
"type": "string"
},
"title": {
"type": "string"
},
"action": {
"enum": [
"createSlot",
"updateSlot",
"deleteSlot",
"series",
"slots",
"list",
"cancel",
"move",
"cancelSession",
"times"
],
"type": "string"
},
"reason": {
"type": "string"
},
"refund": {
"type": "boolean"
},
"repeat": {
"anyOf": [
{
"type": "string"
},
{
"type": "object",
"properties": {
"freq": {
"enum": [
"daily",
"weekly",
"monthly",
"yearly"
],
"type": "string"
},
"wkst": {
"type": "string"
},
"byDay": {
"anyOf": [
{
"type": "string"
},
{
"type": "array",
"items": {
"type": "string"
}
}
]
},
"count": {
"type": "integer"
},
"rrule": {
"type": "string"
},
"until": {
"type": "string"
},
"except": {
"anyOf": [
{
"type": "string"
},
{
"type": "array",
"items": {
"type": "string"
}
}
]
},
"weekly": {
"type": "boolean",
"const": true
},
"byMonth": {
"anyOf": [
{
"type": "integer"
},
{
"type": "array",
"items": {
"type": "integer"
}
}
]
},
"interval": {
"type": "integer"
},
"timeZone": {
"type": "string"
},
"byMonthDay": {
"anyOf": [
{
"type": "integer"
},
{
"type": "array",
"items": {
"type": "integer"
}
}
]
}
},
"additionalProperties": false
}
]
},
"series": {
"type": "string"
},
"toSlot": {
"type": "string"
},
"booking": {
"type": "string"
},
"capacity": {
"type": "integer"
},
"resource": {
"type": [
"string",
"null"
]
},
"skipBusy": {
"type": "boolean"
}
},
"additionalProperties": false
},
"annotations": {
"readOnlyHint": false,
"destructiveHint": false,
"idempotentHint": false
}
}Get an email or webhook when this server's readiness drops by 10+ points, tool-poisoning text appears, or a tool breaks:
curl -X POST https://glimind.com/v1/subscriptions -H 'content-type: application/json' -d '{"tools":["mcp-registry/com.neblla/neblla"],"email":"[email protected]"}'Agents: watch_tool({"toolId": "mcp-registry/com.neblla/neblla"}) over MCP.
neblla_update_app ~6,387 tokensneblla_create_product ~714 tokensneblla_set_automation ~677 tokensneblla_set_api_secret ~668 tokensneblla_booking ~616 tokensStatic checks of the advertised tools/list (schema, descriptions, annotations, tool-poisoning patterns, names, size) plus observed protocol, uptime, latency and contract changes. Read-only: no tool is ever called. Weights: schema 15, docs 20, safety 15, efficiency 15, compatibility 15, protocol 5, reliability 10, stability 5. Token counts are estimates (~3.6 characters per token).
Operator? Fix these, then re-check live. Embed the readiness badge:
[](https://glimind.com/server/mcp-registry%2Fcom.neblla%2Fneblla?ref=badge)
<a href="https://glimind.com/server/mcp-registry%2Fcom.neblla%2Fneblla?ref=badge"><img src="https://glimind.com/v1/readiness/badge/mcp-registry%2Fcom.neblla%2Fneblla.svg" alt="MCP agent-readiness"></a>
.. image:: https://glimind.com/v1/readiness/badge/mcp-registry%2Fcom.neblla%2Fneblla.svg :target: https://glimind.com/server/mcp-registry%2Fcom.neblla%2Fneblla?ref=badge :alt: MCP agent-readiness
Glimind records every version of this server's tool definitions in a signed, append-only transparency log. Current manifest sha256:7d9e8500e6994ae4…, first seen 2026-10-17, included at leaf 3547 of 17,290. Version history · verify what your client received.
Compare: most reliable other servers · most reliable data servers · most reliable security servers · most reliable finance servers · most reliable calendar servers
Glimind tells agents whether a server is up right now and how to call it, then fails over to a live alternative when it isn't.
Claude Code
claude mcp add --transport http glimind https://glimind.com/mcp
Claude Desktop · Windsurf · Cline (mcpServers JSON)
{
"mcpServers": {
"glimind": {
"type": "http",
"url": "https://glimind.com/mcp"
}
}
}
As of 2026-10-17 09:07 UTC, the Neblla MCP server is up with a Glimind reliability score of 92/100 (grade A). Over the last 30 days it answered 100% of Glimind's liveness checks. It had 3 outages in 90 days, with a median recovery of 4 minutes.
Neblla MCP server advertises 109 tools, including neblla_alerts, neblla_archive_app, neblla_auth_secret, neblla_backups, neblla_ban_settings.
Point your MCP client at this streamable-http endpoint: https://neblla.com/mcp
Glimind scanned all 109 tool definitions for tool-poisoning patterns — hidden or invisible characters, instructions that override the model, concealment from the user, requests to read credential or MCP config files, conversation exfiltration and cross-tool shadowing — and found none. This checks what the server tells the model, not what its code does; review the source before granting access to sensitive data.
Status page: 90-day uptime, every outage and how long it lasted.
Claim this listing to get the Verified operator marker, a remediation checklist and owner analytics, or embed the live badge from any of the tool pages above. Maintainers: alerts, deploy attestation and monthly reports.
Status is an automated estimate from Glimind's liveness checks (handshake and tool listing only; no tool is ever called) and may lag or differ from your network. Glimind is not affiliated with this server or its operator. Operator? Request a correction or opt out at https://glimind.com/opt-out.