Vellium & Co Testing Lab
Server Details
Independent checks of paid x402 data sellers and of AI-agent access to shopping and travel sites
- Status
- Healthy
- Last Tested
- Transport
- Streamable HTTP · MCP 2025-11-25
- URL
TDQS
Score is being calculated.
Available Tools
8 toolsbatchInspect
Check up to 25 sellers and 25 websites in one call (cheapest for many checks).
| Name | Required | Description | Default |
|---|---|---|---|
| sellers | No | ||
| websites | No |
changesInspect
What changed since a day — keep a local copy in sync.
| Name | Required | Description | Default |
|---|---|---|---|
| since | No | YYYY-MM-DD |
check_sellerInspect
Our latest independent check of one paid seller, by its address (any spelling) or id: answering, price, buyers, and its paid answers checked against an independent record (with proof).
| Name | Required | Description | Default |
|---|---|---|---|
| id | No | ||
| resource | No | the seller's URL |
check_websiteInspect
Can AI agents use this shopping or travel website? Plain-agent access, each AI agent at the door, robots rules, llms.txt, history.
| Name | Required | Description | Default |
|---|---|---|---|
| domain | Yes | e.g. walmart.com |
list_categoriesInspect
Every category of paid service agents buy, with sellers, buyers and how we check it; names in your language with lang.
| Name | Required | Description | Default |
|---|---|---|---|
| lang | No | language for category names |
list_websitesInspect
Rated websites, filtered by market (e.g. 'United States', 'Japan') or plain-agent outcome (open, blocked, timeout).
| Name | Required | Description | Default |
|---|---|---|---|
| market | No | ||
| plain_agent | No |
search_sellersInspect
Find paid x402 data services AI agents can buy, inside one category, ranked. Use before paying any seller.
| Name | Required | Description | Default |
|---|---|---|---|
| q | No | text to match in name or address | |
| sort | No | accuracy ranks by the low end of the 95% range of paid answers judged correct | |
| limit | No | ||
| cursor | No | ||
| category | Yes | category slug or its name in any of 19 languages, e.g. crypto-prices, 加密货币价格, 暗号資産の価格, cotización cripto (see list_categories) | |
| answering | No | ||
| max_price | No | max USDC per call | |
| min_buyers | No | ||
| min_accuracy | No | keep sellers whose 95% range of correct paid answers starts at or above this share (0 to 1) | |
| tools_honoured | No | AI chat sellers only: keep those whose checked calls passed an agent's tools to the model and never dropped them |
sellers_on_domainInspect
Every paid seller we check on one host.
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | ||
| domain | Yes |
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
8 tool updates
- First observed
batch - First observed
changes - First observed
check_seller - First observed
check_website - First observed
list_categories - First observed
list_websites - First observed
search_sellers - First observed
sellers_on_domain
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