# Tryvon

> Dutch price comparison, starting with travel eSIMs: total price, delivery and price history.

- name: nl.tryvon/tryvon
- version: 1.1.1
- connection class: R0 (autonomous)
- trust: 82/100 flags: no-repository
- quality: 96/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/nl.tryvon%2Ftryvon
- tools: https://api.protogrid.dev/v1/servers/nl.tryvon%2Ftryvon/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "tryvon": {
      "type": "http",
      "url": "https://tryvon.nl/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 99
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-98% +updated-13d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 96/100 (strong)

### protocol: 88 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- warn `protocol.list_ttl`: tools/list declares ttlMs 0, so clients re-fetch it on every use

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 6 of 6 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,286 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 6, about 1,286 tokens to load them all
- tool set hash: c510214d75c2d99fae34c6a3aada57bb
- badge: [![protogrid quality](https://protogrid.dev/badge/nl.tryvon/tryvon.svg)](https://protogrid.dev/servers/nl.tryvon/tryvon)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://tryvon.nl/mcp (streamable-http, auth none, reachable true, uptime30d 0.9807692)

## Packages

_none_

## Tools (6)

- `compare_prices`: For one product, list every shop selling the same item (matched by barcode or brand + part number), cheapest total price first, with each shop's delivery promise. Answers "where is this cheapest" and "who delivers it tomorrow". Pass product_key or offer_id.
- `compare_products`: Compare 2-4 different products side by side: every specification (rows where they differ are marked), buyer rating, lowest total price and shop, number of shops and delivery. Marks the cheapest, the best rated and the best choice (highest Tryvon score).
- `get_buy_link`: Get the link where the user can buy the product on the shop's own website, plus the affiliate disclosure to show the user. Nothing is bought by this tool; the user completes the purchase at the shop.
- `price_history`: Lowest daily total price of a product over time (all shops together), with the lowest price ever and the change versus 30 days ago. Use to answer "is this a good moment to buy?".
- `search_products`: Search products and travel eSIM data plans at Dutch partner shops. Returns products (one entry per product, not per shop) with the lowest total price incl. shipping, the cheapest shop, how many shops sell it and whether any shop delivers next day. Use compare_prices with product_key to see every shop for one product.
- `top_products`: The best products for a need, e.g. "top 5 smartphones" or "best airfryer under 150 euro", ranked by the Tryvon score: buyer rating (review-weighted, so a few 5-star reviews don't beat thousands of 4.6-star ones), popularity, value for money and delivery speed. Commission plays no part. Returns rating, review count, lowest price, shops and key specifications per product. Products without reviews are marked hasReviews=false.