MCP MeasureMCP Measure

index observed

Paid Base Token Tools

Base token facts and ERC-20 allowance checks. Per-call USDC on Base; x402 wallet required.

Should I use this

Quality & Safety

B
Description quality
94%
Schema completeness
51%
Naming quality
92%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Findings (1)

  • LOWTool 'preview_base_usdc' description lacks action verbin preview_base_usdc

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~577Tokens (tool definitions)
~517 BTypical response size
Minimal attention impact (0.45% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "base-token-tools": {
      "url": "https://paid-mcp-opportunity-lab--taylorboucher1.replit.app/api/mcp"
    }
  }
}

Remote endpoints

https://paid-mcp-opportunity-lab--taylorboucher1.replit.app/api/mcpstreamable-http

What it can do

Tool inventory

Tools (5)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢get_tool_status

Read the available tool's Base USDC price, receiver and setup status. Free; configuration does not prove settlement.

Input Schema

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢preview_base_usdc

Free fixed sample of native USDC's on-chain facts on Base. No other token input accepted; does not make a payment.

Input Schema

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢base_token_facts(tokenAddress)

Read a Base ERC-20 fact packet at one pinned block: metadata, exact supply, bytecode hash and EIP-1967 implementation slot. Requires 0.01 native USDC on Base; no financial advice.

Input Schema

{
  "type": "object",
  "properties": {
    "tokenAddress": {
      "type": "string",
      "pattern": "^0x[0-9a-fA-F]{40}$",
      "description": "ERC-20 contract address on Base mainnet"
    }
  },
  "required": [
    "tokenAddress"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢get_runtime_tools

List mounted tool versions, per-call USDC prices and input schemas. Free. Releases share the receiving wallet and pilot limits, not a universal price.

Input Schema

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢base_token_allowance(tokenAddress, ownerAddress, spenderAddress)

Read an ERC-20 allowance on Base at a pinned block before an AI proposes spending. Returns exact units, decimals and provenance. Does not approve or transfer tokens. Version 253064e6ce6110d8. Requires 0.01 native USDC per call on Base; shared paid pilot limits apply.

Input Schema

{
  "type": "object",
  "properties": {
    "tokenAddress": {
      "type": "string",
      "pattern": "^0x[0-9a-fA-F]{40}$"
    },
    "ownerAddress": {
      "$ref": "#/properties/tokenAddress"
    },
    "spenderAddress": {
      "$ref": "#/properties/tokenAddress"
    }
  },
  "required": [
    "tokenAddress",
    "ownerAddress",
    "spenderAddress"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Community

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Evidence

Recent observations

verifiedversion not recorded5 tools