Gyibb Mcp

io.github.PatherasPublished by GitHub account Patherasv1.0.0Updated Oct 24, 2026

Cited product-review verdicts from real user voices — free remote MCP, no API key.

The publisher's own server: Directory

VerifiedStreamable HTTPWeb executableWeb Search & ScrapingBusiness & Commerce

Overview

AI-generated overview

A free remote MCP server that gives assistants cited product-review verdicts synthesized from real user discussion across review and forum platforms.

What you can do
Look up a product's synthesized review: rating, confidence tier, pros, cons, cited sources and source breakdown, by name, slug or category/slug. Check whether a specific claim about a reviewed product is supported, contradicted, mixed or insufficient-data, with quoted evidence. Verify claims about any product, falling back to a live scan of public discussion when no review exists. Compare up to five products side by side on rating, confidence, top pros and cons, and source platforms. Search the catalog by keyword, optionally scoped to a category, sorted by rating.
When to use it
Useful when an assistant needs to check marketing claims or buying questions against what actual users said, or to compare products before recommending one. It is meant for evidence-backed verdicts rather than thin ratings, and declines products with too few user voices.
Requirements
Remote streamable-http endpoint at gyibb.com/mcp; no signup, API key or OAuth. Clients that only speak stdio can bridge it with mcp-remote. Anonymous use is limited to 25 tool calls per IP per UTC day; sending the public integration key in the X-API-Key header raises this to 100.
Before you install
Tool calls are rate-limited per IP, so heavy use will hit the daily cap. The public integration key is described as non-secret and only raises quota. Queries and claims are sent to a third-party service that scans public discussion sources such as Reddit, Hacker News, Lemmy, Stack Exchange, ProductHunt, YouTube and Trustpilot. Verdicts are AI-synthesized, so treat them as cited summaries rather than ground truth.

Installation

In SourceWeft

  1. Open Gyibb Mcp in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.Patheras%2Fgyibb-mcp/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "gyibb": {
      "type": "http",
      "url": "https://gyibb.com/mcp"
    }
  }
}

README

GYIBB Truth Engine — MCP Server

Cited product-review verdicts synthesised from real user voices. Free, remote, no API key.

Most product "reviews" on the web are marketing copy, affiliate filler, or incentivised ratings. GYIBB reads what actual users said on Reddit, Hacker News, Lemmy, Stack Exchange, ProductHunt, YouTube and Trustpilot, and synthesises it into a structured verdict an agent can act on — with the raw quotes still attached.

Every claim traces back to a source. A product without 10+ user voices across 2+ platforms is refused rather than written up from thin air: an empty answer beats a confident guess.

Connect

Claude Desktop

Add to claude_desktop_config.json:

json
{  "mcpServers": {    "gyibb": {      "type": "streamable-http",      "url": "https://gyibb.com/mcp"    }  }}

Any MCP client

Point it at https://gyibb.com/mcp over streamable-http. No signup, no key, no OAuth. If your client only speaks stdio, bridge it with mcp-remote:

bash
npx -y mcp-remote https://gyibb.com/mcp

Verify it's up

bash
curl -N -X POST https://gyibb.com/mcp \  -H 'Content-Type: application/json' \  -H 'Accept: application/json, text/event-stream' \  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"curl","version":"1"}}}'

A healthy server answers 200 with content-type: text/event-stream and a serverInfo.name of gyibb-truth-engine. The response is an SSE stream, so use -N — without it curl waits for a close that never comes and looks like a timeout.

Tools

ToolArgumentsReturns
get_product_reviewquery — product name, slug, or category/slugFull verdict: rating, confidence tier, pros, cons, summary, source breakdown, citation links
verify_claimproduct_slug, claimsupported / contradicted / mixed / insufficient_data, with the quotes behind the call
compare_productsslugs — up to 5Side-by-side ratings, top pros/cons, confidence, source diversity
search_productsquery, category (optional), limit (optional)Rating-sorted matches from the catalogue

verify_claim is the one that has no obvious equivalent elsewhere: it answers "is this marketing claim true according to people who bought it", and returns insufficient_data instead of inventing a verdict when the evidence isn't there.

Rate limits

tools/call per IP per UTC day
Anonymous25
With public key100

initialize, tools/list and notifications are free.

To raise the quota, send the public integration key — it is not a secret, it exists to separate real integrations from drive-by traffic:

X-API-Key: we-read-it-so-you-dont

What the verdicts are built from

Reddit · Hacker News · Lemmy · Stack Exchange · ProductHunt · YouTube · Trustpilot · editorial aggregate ratings.

Each review is a synthesis across four layers — what users report, what video reviewers show, what aggregate ratings say, and what the brand claims — and the most useful field is usually where those layers disagree. Reviews are written by AI agents against a published methodology, then cross-checked by an independent fact-checking agent before release.

Files here

FilePurpose
server.jsonOfficial MCP Registry manifest (io.github.Patheras/gyibb-mcp)
.well-known/mcp.jsonServer manifest served for discovery — tools, limits, sources

The server itself is not in this repository; it is part of the GYIBB platform and served at https://gyibb.com/mcp. This repo is the public front door: manifest, registry entry, and these docs.

Licence

Free for read-only use. See https://gyibb.com/manifesto.

Contact: [email protected]

Source: README.md at commit fa4f993

Tools

6

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.

Parametersqueryrequired

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.

Parametersclaimrequiredproduct_slugrequired

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.

Parametersclaimrequiredproductrequired

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.

Parametersproductrequired

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.

Parametersslugsrequired

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').

Parameterslimitqueryrequiredcategory

Version history

1
  1. v1.0.0LatestSep 16, 2026

Score

90% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.

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