Niche: Your niche, followed for you

by nicheangle.com · remote · no sign-in to list tools · v2.0.0 · published by com.nicheangle

Read niche briefings, research news, and explore sourced story angles with your assistant.

Deletes · 1Changes · 3

Compare Registry entry

8 tools: 1 can delete or cancel things, 3 change things and 4 only read.

Scanned Oct 21, 2026

Deletes or cancels1Claude Code: deny: see these tools
Can't be undone0Claude Code: ask
Changes things3Claude Code: ask: see these tools
Only reads4Claude Code: allow: see these tools

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http niche https://api.nicheangle.com/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn

Warnniche_intelligence_query
The server marks "niche_intelligence_query" as not read-only (readOnlyHint: false), and its words say it reads.
Matched text
annotations: {"readOnlyHint":false,"destructiveHint":false,"openWorldHint":true}; The name "niche_intelligence_query" says "query": a word for reading.
What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

8 tools

Deletes or cancels 1Removes, cancels or revokes something.Claude Code: deny

niche_session_cancelCancel a scan that is still running.No findings
Why it is in this group
- The name "niche_session_cancel" says "cancel": a word for removing or ending something.
- The server marks it destructive (destructiveHint: true).
Description, as the server wrote it
Cancel a scan that is still running.
Annotations the server declares
- title: Cancel a session
- readOnlyHint: false
- destructiveHint: true
- openWorldHint: false

Changes things 3Creates or changes something that can be changed back.Claude Code: ask

niche_angle_proposeAngles on one story (Pro): up to a few distinct stances a reader could take, each with a hook, the take, and the sources that support it.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it
Angles on one story (Pro): up to a few distinct stances a reader could take, each with a hook, the take, and the sources that support it. Pass the session_id from a scan and a story_id from its slate. Nothing is written for you; the angles are starting points.
Annotations the server declares
- title: Propose angles
- readOnlyHint: false
- destructiveHint: false
- openWorldHint: false
niche_intelligence_queryAsk an analyst-shaped question over a fresh scan of a niche (Pro): 'the biggest developments this week', 'what is emerging', 'where money is moving'.Reads text others write1 finding
Why it is in this group
- The name "niche_intelligence_query" says "query": a word for reading.
- The server marks it as not read-only (readOnlyHint: false).
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Findings
- Warn
  The server marks "niche_intelligence_query" as not read-only (readOnlyHint: false), and its words say it reads.
  Matched text
  annotations: {"readOnlyHint":false,"destructiveHint":false,"openWorldHint":true}; The name "niche_intelligence_query" says "query": a word for reading.
  What this check looks for
Description, as the server wrote it
Ask an analyst-shaped question over a fresh scan of a niche (Pro): 'the biggest developments this week', 'what is emerging', 'where money is moving'. Returns the sourced slate plus a short synthesis when requested. Returns a session_id; poll niche_session_state until cp1_awaiting_story. For synthesis, continue polling with wait_until=synthesis and wait=30 until it arrives or a shortfall is reported.
Annotations the server declares
- title: Intelligence query
- readOnlyHint: false
- destructiveHint: false
- openWorldHint: true
niche_signal_scanScan a niche you describe, right now (Pro).Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Scan a niche you describe, right now (Pro). Returns a ranked, sourced slate of the stories people in that field are talking about, with source links, the outlets, and why it matters. For a ready-made briefing use niche_feed_read instead. Assistant access requires Pro. Poll niche_session_state with the returned session_id until status is cp1_awaiting_story; the slate is in `stories`.
Annotations the server declares
- title: Discover stories (signal scan)
- readOnlyHint: false
- destructiveHint: false
- openWorldHint: true

Only reads 4Looks things up and changes nothing.Claude Code: allow

niche_feed_readRead the latest or a dated briefing for a niche: stories, reporting dates, source links, why each story matters, and new or continuing status.No findings
Why it is in this group
- The name "niche_feed_read" says "read": a word for reading.
Description, as the server wrote it
Read the latest or a dated briefing for a niche: stories, reporting dates, source links, why each story matters, and new or continuing status. Use a slug from https://nicheangle.com/n or a custom niche's URL, such as founders or ai-leaders. Assistant access requires Pro. This reads an existing briefing without starting a scan. A quiet briefing has status=quiet; no_edition means no briefing is available; unknown_niche means the slug was not found.
Annotations the server declares
- title: Read a briefing
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
niche_list_sessionsList your recent scans: id, the niche you described, status and timestamps.No findings
Why it is in this group
- The name "niche_list_sessions" says "list": a word for reading.
Description, as the server wrote it
List your recent scans: id, the niche you described, status and timestamps. Use it to find a session_id you no longer have.
Annotations the server declares
- title: List sessions
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
niche_session_stateRead the current state of a scan: status, the ranked stories with their sources and source information, and any angles already proposed.No findings
Why it is in this group
- The description's first verb is "read": a word for reading.
Description, as the server wrote it
Read the current state of a scan: status, the ranked stories with their sources and source information, and any angles already proposed. Poll this after niche_signal_scan or niche_intelligence_query until the slate is ready.
Annotations the server declares
- title: Read session state
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false
niche_whoamiOrient in one read-only call: your plan (Free or Pro), the tools this server serves, and the endpoint.No findings
Why it is in this group
- The name "niche_whoami" says "whoami": a word for reading.
Description, as the server wrote it
Orient in one read-only call: your plan (Free or Pro), the tools this server serves, and the endpoint. Assistant access requires Pro. Call it first if you are unsure what is available.
Annotations the server declares
- title: Who am I (account + capability map)
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or outbound.

Reads private data0: Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write2: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.; niche_intelligence_query
niche_signal_scan
Can send data out0: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Looked at Oct 22, 2026, 14:37 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable: yes
HTTP status of an anonymous initialize: 200
tools/list served without credentials: yes
Tools that change things, listed without credentials: 4
Protocol version: 2025-03-26
WWW-Authenticate on 401: not observed
resource_metadata in WWW-Authenticate: none
RFC 9728 protected resource metadata: https://api.nicheangle.com/.well-known/oauth-protected-resource
Authorization servers: https://api.nicheangle.com
Legacy HTTP+SSE transport: no
Dynamic client registration: yes
Client ID metadata documents: no

HighThe whole server
The endpoint served tools/list without credentials, and the list has 4 tools that change things (1 destructive, 3 write). Whether a call also works without credentials was not tested: tools are never called.
Matched text
https://api.nicheangle.com/mcp: tools/list returned 8 tools to an anonymous client, including niche_session_cancel (destructive), niche_signal_scan (write), niche_intelligence_query (write), niche_angle_propose (write)
What this check looks for

Install

Pinned to version 2.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http niche https://api.nicheangle.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__niche__niche_session_state",
      "mcp__niche__niche_list_sessions",
      "mcp__niche__niche_whoami",
      "mcp__niche__niche_feed_read"
    ],
    "ask": [
      "mcp__niche__niche_signal_scan",
      "mcp__niche__niche_intelligence_query",
      "mcp__niche__niche_angle_propose"
    ],
    "deny": [
      "mcp__niche__niche_session_cancel"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as niche. Review it before you use it.

Capability tags behind 2 rules

mcp__niche__niche_signal_scan untrusted-input
mcp__niche__niche_intelligence_query untrusted-input

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/com.nicheangle/niche/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Anlyon alternative

4 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Compare with other servers for the same product.

Source: MCP Registry · repository. Synced Oct 21, 2026, 17:59 UTC.

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