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FinancialMCP serverFirst audited Nov 13, 2026

org.sky-1/rate-hub

Indicative fiat and crypto rates over MCP, paid per request via x402 at $0.0001/request.The vendor's description, from its MCP Registry listing.

Passed, with 1 warningAudited Nov 13, 2026
  • Warning: 7 of 7 tools do not say whether they can change things.

Nothing failed, but there is something to know or fix. Public audit: we connect as an AI client would, list the tools and check what they say. We do not run them. How we audit

Does it work?
YesConnected in 549 ms.
Sign-up?
None neededIt answered without any account or key.
Can it change things?
Doesn't sayIts tools do not say whether they only read, so treat them as able to change things.
Endpointhttps://x402-v1.sky-1.org/mcp

Streamable HTTP · protocol 2025-11-25 · server version 0.22.1-594af12

What we checked, the evidence, and the tools it offers.

What we checked

Security

  • Passed: Connections are encrypted (HTTPS).

  • Passed: No hidden instructions found in tool text.

Safety labels

  • Warning: 7 of 7 tools do not say whether they can change things.

    MCP lets a server label each tool as read-only or destructive, so clients can ask the user before risky calls. Unlabelled tools are treated as able to change things.

    • get_categories
    • get_daily
    • get_meta
    • get_rates
    • get_series
    • get_top
    • search_assets

Tools

  • Passed: 7 tools listed.

  • Passed: Every tool describes its inputs with a valid schema.

Protocol

  • Passed: The MCP handshake works (Streamable HTTP).

  • Passed: Protocol version 2025-11-25 (latest).

  • Passed: Unknown requests are refused.

Connection

  • Passed: The server responds.

Tools (7)

As the server describes them. The labels are the server's own: it says whether each tool only reads or can change things.

  • get_categoriesCoin categories (GET /v1/categories): each category id and name with the catalog uids that belong to it, for example layer-1 or stablecoins. Join it with uids from get_rates or search_assets to group…Doesn't say
  • get_dailyImmutable daily rates for uids and UTC days (POST /v1/rates/daily). Days are UTC calendar dates (YYYY-MM-DD) in the past. Crypto history older than about a year is served at daily granularity from da…Doesn't say
  • get_metaAPI limits, supported quote currencies, and build info (GET /v1/meta).Doesn't say
  • get_ratesBatch indicative prices for catalog uids (POST /v1/rates). Prices are decimal strings. Uids are class-ranged (uid = class*1e8+seq; 1=fiat e.g. usd 100000001, 2=crypto e.g. btc 200000001). Use search_…Doesn't say
  • get_seriesPrice history of one asset for charts (GET /v1/rates/series). Crypto: every range. Fiat: 1d and 7d from rate-hub's own readings taken about every 30 minutes; 30d, 90d, 1y and max one point per UTC da…Doesn't say
  • get_topTop crypto assets by market rank (GET /v1/top), with change and, by default, the market block (rank, market cap, volume, supply). Size: about 1 KB per asset with market (both copies of the result), s…Doesn't say
  • search_assetsCatalog lookup (GET /v1/assets); use it to turn tickers or names into uids. Filters: q (free text), symbol, symbols (several tickers in one call), candidate (the uid of a candidates entry; registers…Doesn't say

Audit history

  1. Nov 13Warnings

What we sent

Every request in this audit, with the answer and how long it took. We never send credentials and never call a tool.

RequestAnswerTime
initializeHTTP 200549 ms
initializedHTTP 202509 ms
tools/listHTTP 200224 ms
resources/listHTTP 200155 ms
unknown-methodHTTP 402125 ms

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