Skip to main content
Glama
yigitabi5444

Polymarket MCP Server

by yigitabi5444

get_price

Retrieve the best available buy or sell price for a Polymarket prediction market token to inform trading decisions.

Instructions

Get the current price for a Polymarket token on the given side (buy or sell). Returns the best available price.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
token_idYesCLOB token ID (from market's clobTokenIds)
sideYesOrder side: buy or sell
Behavior2/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions 'best available price' but lacks details on rate limits, authentication requirements, error handling, or whether this is a read-only operation. For a financial data tool, this omission is significant.

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 a single, efficient sentence with zero waste. It front-loads the core purpose and includes the return value, making it easy to parse quickly.

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

Completeness3/5

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

Given the tool's moderate complexity (fetching financial data), no annotations, and no output schema, the description is minimally adequate. It covers the basic purpose but lacks details on behavior, error cases, or output format, which are important for an agent to use it correctly.

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 description coverage is 100%, so the schema already documents both parameters thoroughly. The description adds no additional meaning beyond what the schema provides, such as explaining 'token_id' sources or 'side' implications in market context. Baseline 3 is appropriate as the schema does the heavy lifting.

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

Purpose4/5

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

The description clearly states the action ('Get the current price') and resource ('Polymarket token'), specifying the domain (Polymarket) and what is returned ('best available price'). However, it doesn't explicitly differentiate from siblings like 'get_last_trade_price' or 'get_midpoint', which might provide similar price-related data.

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

Usage Guidelines2/5

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

No guidance is provided on when to use this tool versus alternatives such as 'get_last_trade_price' or 'get_midpoint'. The description mentions 'best available price' but doesn't clarify if this is for real-time quotes, order book analysis, or how it differs from other price-fetching tools in the sibling list.

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/yigitabi5444/yigit_polymarket_mcp'

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