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io.github.Hoya25/nctr-mcp-server

by Hoya25 · remote · local (npm) · no sign-in to list tools · v1.0.1 · published by GitHub user Hoya25

NCTR Alliance rewards — search bounties, check earning rates, and discover communities.

Changes · 2
CompareRegistry entry

6 tools: 2 change things and 4 only read.

Scanned Oct 21, 2026

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

claude mcp add --transport http nctr https://yhwcaodofmbusjurawhp.supabase.co/functions/v1/mcp/rpc

Tools

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

6 tools

Changes things 2Claude Code: ask
  • check_tier_requirementsCheck what is needed to reach a specific Crescendo status tier, or see the full progression path.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
    Check what is needed to reach a specific Crescendo status tier, or see the full progression path. Shows NCTR lock thresholds, multipliers, and perks for each tier.
Only reads 4Claude Code: allow
  • get_active_promotionsGet currently active promotions, limited-time offers, and special earning opportunities in the NCTR program.No findings

    Why it is in this group

    • The name "get_active_promotions" says "get": a word for reading.
    Description, as the server wrote it
    Get currently active promotions, limited-time offers, and special earning opportunities in the NCTR program.
  • get_earning_ratesGet NCTR earning rates for a specific Crescendo status tier, or compare all tiers.No findings

    Why it is in this group

    • The name "get_earning_rates" says "get": a word for reading.
    Description, as the server wrote it
    Get NCTR earning rates for a specific Crescendo status tier, or compare all tiers. Shows the multiplier applied to bounty earnings at each tier level. Higher tiers earn more NCTR per bounty.
  • get_impact_enginesDiscover NCTR Impact Engine communities.No findings

    Why it is in this group

    • The name "get_impact_engines" says "get": a word for reading.
    Description, as the server wrote it
    Discover NCTR Impact Engine communities. Impact Engines are passion-based communities within NCTR — each focused on a different lifestyle vertical. Members can join any Impact Engine to connect with like-minded people and access community-specific experiences.
  • search_bountiesSearch and filter available NCTR bounties.No findings

    Why it is in this group

    • The name "search_bounties" says "search": a word for reading.
    Description, as the server wrote it
    Search and filter available NCTR bounties. Filter by category (entry, shopping, merch, referral, engagement), minimum/maximum NCTR amount, or keyword. Returns bounty details including name, amount, lock period, and requirements. All bounties use 360LOCK — tokens stay yours after the lock period.

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 untrusted-input or outbound.

Reads private data0
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
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.

Install

Pinned to version 1.0.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http nctr https://yhwcaodofmbusjurawhp.supabase.co/functions/v1/mcp/rpc

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__nctr__search_bounties",
      "mcp__nctr__get_earning_rates",
      "mcp__nctr__get_active_promotions",
      "mcp__nctr__get_impact_engines"
    ],
    "ask": [
      "mcp__nctr__check_tier_requirements",
      "mcp__nctr__get_onboarding_link"
    ],
    "deny": []
  }
}

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 nctr. Review it before you use it.