Skip to content

santyvv-data — market & on-chain data

by santyvv.com · remote · local (npm) · no sign-in to list tools · v1.0.1 · published by com.santyvv

Market and on-chain crypto data for AI agents. Pay per call in USDC on Base (x402).

Changes · 8
CompareRegistry entry

8 tools: 8 change things.

Scanned Oct 21, 2026

2 checks matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http tienda https://mcp.santyvv.com/mcp

Findings

Matches of fixed checks, with the text they matched.

2 warn
  • Warnficha_token

    The input schema at properties.tokens.description contains a 42-character base64 string.

    Matched text

    inputSchema.properties.tokens.description: "...up to 10. Example: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"

    What this check looks for
  • Warnsaldo

    The input schema at properties.token.description contains a 42-character base64 string.

    Matched text

    inputSchema.properties.token.description: "...ract (USDC on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)."

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

8 tools

Changes things 8Claude Code: ask
  • estado_fuentesLive probe of every public source behind the data (response, HTTP status and latency).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Live probe of every public source behind the data (response, HTTP status and latency). Free: use it to decide whether a paid call is worth it, and to see where a number came from.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • ficha_tokenWhat a token is and what it is worth: name, symbol, decimals, supply, contract address and price per token.1 finding

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The input schema at properties.tokens.description contains a 42-character base64 string.

      Matched text

      inputSchema.properties.tokens.description: "...up to 10. Example: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"

      What this check looks for
    Description, as the server wrote it
    What a token is and what it is worth: name, symbol, decimals, supply, contract address and price per token. Use it to confirm that an address is a real contract and what it represents. Cuesta $0.03 por llamada, en USDC sobre Base (protocolo x402).

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • mercadoThe big picture: total market cap, Bitcoin dominance, 24 h change, the coins by market cap and the top movers.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    The big picture: total market cap, Bitcoin dominance, 24 h change, the coins by market cap and the top movers. This is the context question, not the one about a single asset. Cuesta $0.03 por llamada, en USDC sobre Base (protocolo x402).

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • precioWhat an asset is worth right now, in USD, as a MEDIAN across several venues with its spread - not a single exchange's last trade.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    What an asset is worth right now, in USD, as a MEDIAN across several venues with its spread - not a single exchange's last trade. Use it to quote, to compare venues or to spot a dislocated market. Cuesta $0.02 por llamada, en USDC sobre Base (protocolo x402).

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • saldoWhat an address holds: the native balance of the network and, if you pass a token, that ERC-20 balance with its decimals.1 finding

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The input schema at properties.token.description contains a 42-character base64 string.

      Matched text

      inputSchema.properties.token.description: "...ract (USDC on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)."

      What this check looks for
    Description, as the server wrote it
    What an address holds: the native balance of the network and, if you pass a token, that ERC-20 balance with its decimals. Use it to verify a payment or a holding without opening a block explorer. Cuesta $0.03 por llamada, en USDC sobre Base (protocolo x402).

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • tvl_protocoloHow much money is deposited in a DeFi protocol (TVL in USD) with its 24 h and 7 day change.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    How much money is deposited in a DeFi protocol (TVL in USD) with its 24 h and 7 day change. The measure of a protocol's size and health before you interact with it. Cuesta $0.01 por llamada, en USDC sobre Base (protocolo x402).

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • velasRecent candles for a trading pair at the interval you ask for (1m to 1d).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Recent candles for a trading pair at the interval you ask for (1m to 1d). What you need to compute trend or volatility, or to draw a chart without an exchange API key. Cuesta $0.01 por llamada, en USDC sobre Base (protocolo x402).

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http tienda https://mcp.santyvv.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [],
    "ask": [
      "mcp__tienda__catalogo",
      "mcp__tienda__estado_fuentes",
      "mcp__tienda__precio",
      "mcp__tienda__ficha_token",
      "mcp__tienda__velas",
      "mcp__tienda__mercado",
      "mcp__tienda__tvl_protocolo",
      "mcp__tienda__saldo"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as tienda. Review it before you use it.