MCP.Market

Gyibb MCP server

online · 96% uptime
by Patheras·io.github.Patheras/gyibb-mcp·v1.0.0
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Cited product-review verdicts from real user voices — free remote MCP, no API key.

B84/100grade B
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Safety scan
B84/100

full report

Adoption
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Gyibb tools (6)

write = sends, deletes, buys or posts
  • brand_pulseFree

    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.

  • compare_productsFree

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

  • get_product_reviewFree

    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.

  • search_productsFree

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

  • verify_claimFree

    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_liveFree

    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.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 1841ms20/20
  • Tool poisoning6 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancelast push 44 days ago12/15
  • Maintainer identityregistry namespace matches repository owner6/10
Overall 84/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Gyibb compares

Against every graded E-commerce MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
84/100
higher than 78% of 2,174 E-commerce servers
Tools
6
the typical E-commerce server has 6
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Uptime
96%
of our recent checks; the typical remote E-commerce server answers 100%
Response time
268 ms
faster than 56% of 1,527 E-commerce servers

What its tools let an agent do: 6 read

Install Gyibb in Claude Code, Cursor or VS Code

claude mcp add --transport http gyibb-mcp https://gyibb.com/mcp
Add to Cursor

What the publisher says

From the Gyibb repository's README, as published. We do not edit it. Read it on GitHub

GYIBB Truth Engine — MCP Server

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

  • Endpoint: https://gyibb.com/mcp
  • Transport: streamable-http
  • Auth: none
  • Docs for agents:

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 claudedesktopconfig.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:

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

Verify it's up

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

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

Rate limits

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.

  • Methodology:
  • Editorial stance:

Files here

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.

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Gyibb: common questions

Is Gyibb MCP server safe?
Mostly: it is graded B (84/100). Read the Gyibb safety report
How do I install Gyibb?
It runs remotely at gyibb.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Gyibb need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Gyibb maintained?
The last commit was 81 days ago (2026-08-14). The latest release is v1.0.0.
Is Gyibb up?
96% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of Gyibb?
Servers from other publishers that do the same job: HasData Walmart MCP server, Apiguru Amazon Data MCP server and Ecommerce Trends MCP server.
How does Gyibb compare with other E-commerce MCP servers?
safety score 84/100 (higher than 78% of 2,174 E-commerce servers); tools 6 (the typical E-commerce server has 6); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to Gyibb

Same job from other publishers: the closest match first, then the best rated.

  • HasData Walmart
    Walmart search, product pages and customer reviews on walmart.com and walmart.ca, as JSON.
    More from hasdata.com →
    A
  • Apiguru Amazon Data
    Live Amazon product, review, search, deal, offer/stock and seller data across 23 marketplaces.
    A
  • Ecommerce Trends MCP
    Product and category demand trend volume over time, with growth signals. Free key at trendsmcp.ai
    A
  • Human For AI
    Hire a real human for real-world verification, product testing, AI output review, and errands.
    A
  • PostHog MCP Server
    Official PostHog MCP Server for product analytics, feature flags, experiments, and more.
    A