Skip to main content
Glama
CC3-0

CoinCap MCP Server

by CC3-0

price_byaddress

Retrieve the current USD price of a cryptocurrency token by inputting its contract address and blockchain network.

Instructions

Get USD price by token address & network

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
tokenAddressYesQuery parameter: tokenAddress
networkYesQuery parameter: network
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided. The description simply restates the tool's action without disclosing any behavioral traits such as authentication needs, rate limits, or return value format. For a read operation, minimal disclosure is expected but still room for improvement.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely concise at 9 words, front-loading the key action and criteria. Every word is meaningful with no waste.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple two-parameter tool with no output schema, the description covers the essential purpose and criteria. It could mention the return value (current USD price) but is sufficient for basic selection and invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, with both parameters described in the schema. The description adds no additional meaning beyond what the schema already provides, meeting the baseline for high coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb 'Get' and the resource 'USD price', and specifies the criteria 'by token address & network'. This clearly differentiates from sibling tool price_bysymbol_symbol which uses symbol instead.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage when token address and network are known. No explicit exclusions or alternatives are provided, but the context is clear enough for the agent to infer when to use this tool versus the symbol-based sibling.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/CC3-0/coincap-mcp-server'

If you have feedback or need assistance with the MCP directory API, please join our Discord server