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.
https://gyibb.com/mcpWhat its tools do
6 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.
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
- 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
{
"tools": {
"listChanged": false
},
"prompts": {
"listChanged": false
},
"resources": {
"subscribe": false,
"listChanged": false
},
"experimental": {}
}Tools
6 advertised
get_product_review
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.
{
"type": "object",
"title": "get_product_reviewArguments",
"required": [
"query"
],
"properties": {
"query": {
"type": "string",
"title": "Query"
}
}
}verify_claim
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.
{
"type": "object",
"title": "verify_claimArguments",
"required": [
"product_slug",
"claim"
],
"properties": {
"claim": {
"type": "string",
"title": "Claim"
},
"product_slug": {
"type": "string",
"title": "Product Slug"
}
}
}verify_live
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.
{
"type": "object",
"title": "verify_liveArguments",
"required": [
"product",
"claim"
],
"properties": {
"claim": {
"type": "string",
"title": "Claim"
},
"product": {
"type": "string",
"title": "Product"
}
}
}brand_pulse
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.
{
"type": "object",
"title": "brand_pulseArguments",
"required": [
"product"
],
"properties": {
"product": {
"type": "string",
"title": "Product"
}
}
}compare_products
Side-by-side comparison of up to 5 GYIBB products by slug. Each row has rating, confidence, top 3 pros/cons, and source platforms.
{
"type": "object",
"title": "compare_productsArguments",
"required": [
"slugs"
],
"properties": {
"slugs": {
"type": "array",
"items": {
"type": "string"
},
"title": "Slugs"
}
}
}search_products
Keyword search over the GYIBB catalog. Returns up to `limit` matches sorted by rating descending. Pass `category` to scope (e.g. 'headphones', 'ai-chatbots').
{
"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
Resources
0 advertised
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.
Claude Code
claude mcp add --transport http gyibb-mcp https://gyibb.com/mcpCodex
codex mcp add gyibb-mcp --url https://gyibb.com/mcpCursor
{
"mcpServers": {
"gyibb-mcp": {
"url": "https://gyibb.com/mcp"
}
}
}Cline
{
"mcpServers": {
"gyibb-mcp": {
"type": "streamableHttp",
"url": "https://gyibb.com/mcp",
"disabled": false
}
}
}VS Code
{
"servers": {
"gyibb-mcp": {
"type": "http",
"url": "https://gyibb.com/mcp"
}
}
}Gemini CLI
gemini mcp add --transport http gyibb-mcp https://gyibb.com/mcpClaude Desktop
https://gyibb.com/mcpWindsurf
{
"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.