Polymarket Copy-Trading Ratings MCP server

Which MCP servers are Polymarket Copy-Trading Ratings's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-29

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Whose server it is

Registry namemarkets.chameleons/polymarketverified in the MCP registry

The registry name sits under chameleons.markets. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-29

Stateanswerschecked 2026-10-29
Tools6
Server calls itselfchameleons
Server version1.0.0
Protocol version2025-06-18

On 2026-10-29 the server answered initialize and tools/list without a sign-in. First answer in 242 ms.

Should an agent connect itNot proven either way yet

Whether its tools do the product's job has not been judged yet.

Once connected

For "Rank Polymarket traders by modelled return per copied trade", the likely first call is find_traders.
Parameters are untyped or undescribed in 5 of 6 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 7, the first on 2026-10-29

INITE MCP score96 of 100answers 100 · definitions 86 · context 100 · connects 100
Answered100% of days7 of 7 daily checks
Median first answer253 ms
Space in an agent's context≈ 919 tokensthe definitions of all its tools (6), which an agent carries on every turn
Tool definitionsB · 86 of 100
Typed results0 of 6 toolsdeclared outputSchema: results come typed, read once

Parameters without a description: in 5 of 6

What an agent can do with it

can do · Rank Polymarket traders by modelled return per copied trade
not sure · Filter traders by market category and typical hold time
not sure · Export the trader table as CSV for offline comparison

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers6 tools · read 2026-10-29

find_traders
Polymarket traders, filtered and sorted like the page; head lines say what applied and what the defaults hid. copyable: % of checked trades a follower could fill (n=checked); ret_lo: ROIC, profit per copy as % of stake, 80% low end…
get_trader
One trader: a row per category, rule check, radar with n, stars history, 5 newest trades. <=2 KB.
list_categories
Rows per category at each stars level, plus the page's chip counts. <=800 B.
explain_rating
The 1-5★ rule; with trader, that trader's check per level, radar and stars history. <=1.5 KB.
get_copy_recipe
One trader's copy recipe for your own agent (/traders/<slug>/copy.md): watch, rules, costs, YAML. Not advice. <=5 KB.
get_bot_guide
How to build a copy bot and steer it with find_traders' filters (/bots.md). Not advice.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "polymarket": {
      "type": "http",
      "url": "https://chameleons.markets/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http chameleons https://chameleons.markets/mcp

Add to Cursor Add to VS Code

claude.ai, ChatGPT and other clients: add https://chameleons.markets/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.