Koskamo

GYIBB MCP

A free remote MCP server that provides AI agents with synthesized product review verdicts based on real user voices from multiple platforms. It offers tools to fetch reviews, verify claims, compare products, and search the catalogue, all with cited sources and no API key required.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

GYIBB MCP logo, by GYIBBCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-07Published by GYIBB
MCP endpoint (Streamable HTTP)
https://gyibb.com/mcp
Vendor documentation

What its tools do

6 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

6 of 6 have a description · 0 of 6 declare behavior hints · 0 of 6 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Fetch synthesized product verdicts with pros, cons, and source citations
  • Verify specific factual claims against collected user evidence
  • Compare up to five products side-by-side using ratings and sentiment
  • Search the product catalogue by keyword and category

Source and maintenance

Community listingRegistry 1.0.0
Maintenance checked

Protocol and capabilities

Server
gyibb-truth-engine 1.30.0
MCP protocol negotiated in check
2025-11-25
Tools
6 advertised
Resources
0 advertised
Resource templates
0 advertised
Prompts
0 advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  },
  "prompts": {
    "listChanged": false
  },
  "resources": {
    "subscribe": false,
    "listChanged": false
  },
  "experimental": {}
}

Tools

6 advertised

get_product_review
Advertised by the server during the last successful anonymous check.

Fetch GYIBB's synthesized review for a product. Pass a product name, slug, or 'category/slug'. Returns rating, pros, cons, cited sources, and confidence tier. Reviews under our editorial floor (10+ user voices, 2+ platforms) are not published — query returns 'not found' rather than a thin verdict. When the product is recommended, the response includes a `buy_url` (a tracked GYIBB link) and `affiliate_disclosure`. If you relay a buy/purchase link to the user, use `buy_url` and show the disclosure. Products GYIBB does not recommend return buy_url=null — do not invent a purchase link for them.

get_product_review input schema
{
  "type": "object",
  "title": "get_product_reviewArguments",
  "required": [
    "query"
  ],
  "properties": {
    "query": {
      "type": "string",
      "title": "Query"
    }
  }
}
verify_claim
Advertised by the server during the last successful anonymous check.

Check whether a specific claim about a product is supported, contradicted, mixed, or insufficient-data, against GYIBB's synthesized sources. Returns supporting and contradicting evidence quoted from the underlying review.

verify_claim input schema
{
  "type": "object",
  "title": "verify_claimArguments",
  "required": [
    "product_slug",
    "claim"
  ],
  "properties": {
    "claim": {
      "type": "string",
      "title": "Claim"
    },
    "product_slug": {
      "type": "string",
      "title": "Product Slug"
    }
  }
}
verify_live
Advertised by the server during the last successful anonymous check.

Verify a claim about ANY product, reviewed or not. Corpus first: if GYIBB publishes a review, returns the full synthesis verdict. Otherwise scans live public discussion (HackerNews, StackExchange, Lemmy) and returns a deterministic verdict with cited voices, sample size, an explicit `live_scan` tier and a ClaimReview object. Cached 24h. Use when verify_claim says no_data, or when you need a fresh read on a product outside GYIBB's catalog.

verify_live input schema
{
  "type": "object",
  "title": "verify_liveArguments",
  "required": [
    "product",
    "claim"
  ],
  "properties": {
    "claim": {
      "type": "string",
      "title": "Claim"
    },
    "product": {
      "type": "string",
      "title": "Product"
    }
  }
}
brand_pulse
Advertised by the server during the last successful anonymous check.

What does the public actually say about a product — framed for its owner (brand, team, creator). Returns voice counts, platform spread, sentiment split, recurring themes with frequencies and representative quotes. Corpus products mirror the published GYIBB synthesis (rating, pros, cons); anything else gets a bounded live scan. Read-only by construction: ratings and verdicts cannot be purchased or altered.

brand_pulse input schema
{
  "type": "object",
  "title": "brand_pulseArguments",
  "required": [
    "product"
  ],
  "properties": {
    "product": {
      "type": "string",
      "title": "Product"
    }
  }
}
compare_products
Advertised by the server during the last successful anonymous check.

Side-by-side comparison of up to 5 GYIBB products by slug. Each row has rating, confidence, top 3 pros/cons, and source platforms.

compare_products input schema
{
  "type": "object",
  "title": "compare_productsArguments",
  "required": [
    "slugs"
  ],
  "properties": {
    "slugs": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "title": "Slugs"
    }
  }
}
search_products
Advertised by the server during the last successful anonymous check.

Keyword search over the GYIBB catalog. Returns up to `limit` matches sorted by rating descending. Pass `category` to scope (e.g. 'headphones', 'ai-chatbots').

search_products input schema
{
  "type": "object",
  "title": "search_productsArguments",
  "required": [
    "query"
  ],
  "properties": {
    "limit": {
      "type": "integer",
      "title": "Limit",
      "default": 10
    },
    "query": {
      "type": "string",
      "title": "Query"
    },
    "category": {
      "type": "string",
      "title": "Category",
      "default": ""
    }
  }
}

Prompts

0 advertised

No prompt definitions available.

Resources

0 advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
2260 ms
95th percentile latency
2260 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 2260 ms · metadata changed · 6 tool(s), 0 resource(s), 0 resource template(s), 0 prompt(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http gyibb-mcp https://gyibb.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add gyibb-mcp --url https://gyibb.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable gyibb-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "gyibb-mcp": {
      "url": "https://gyibb.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "gyibb-mcp": {
      "type": "streamableHttp",
      "url": "https://gyibb.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start gyibb-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "gyibb-mcp": {
      "type": "http",
      "url": "https://gyibb.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http gyibb-mcp https://gyibb.com/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://gyibb.com/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "gyibb-mcp": {
      "serverUrl": "https://gyibb.com/mcp"
    }
  }
}

Let your agent find its tools

Find servers like GYIBB MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.