Chameleons
REMOTE · CHAMELEONS.MARKETS
Polymarket traders checked for copy trading: 1–5★ or Can't copy. 90 d · modelled · not advice.
Available components
Last scanned (5 hours ago)
Scores higher than 58% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Finance and Payments
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability51
- AI-judged instruction clarity (fair).Partial
- Context-footprint check failed: tool/resource definitions use about 1017 tokens (~169/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management27
- Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage92
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 76% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Nov 26 0
- The server rewrote its instructions, which are the text every model session reads security
- “find_traders” reworded the description of “stars” cosmetic
- 2 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.
- 30 Oct 26 +1
- The server rewrote its instructions, which are the text every model session reads security
- Tool “find_traders” rewrote its description, which is the text the model reads security
- 29 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 28 Oct 26 69
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://chameleons.markets/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_256_GCM_SHA384 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=chameleons.markets | CN=YR2,O=Let's Encrypt,C=US | 22 Oct 2026 | 20 Jan 2027 | RSA 2048 | SHA256-RSA | 64c088e41e35a11f8d82cd0198d9fc32489 |
| SANs: chameleons.markets | ||||||
| CN=YR2,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | 4ebd24947e24d394802d84a52fd5b319 |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of chameleons.markets. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| markets. | present | 58144, 64757 | 8, 8 | Verified |
| chameleons.markets. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000 |
| content-security-policy | frame-ancestors 'none' |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://chameleons.markets/mcp | Verified | 200 | |
| http (plaintext) | http://chameleons.markets/mcp | HTTPS enforced | 301 | https://chameleons.markets/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
explain_rating Rating rule ~62
The 1-5★ rule; with trader, that trader's check per level, radar and stars history. <=1.5 KB.
| Name | Type | Req | Description |
|---|---|---|---|
| cat | string | – | – |
| format | string | – | – |
| trader | string | – | as get_trader |
No output schema declared.
No examples provided.
find_traders Find traders ~449
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 (n=copy10_n; 4★+ needs a 90% one above 0); crowd: % copied within 2 s, upper bound (n=crowd_n). <=4 KB: the rows that fit; the rows line pages on.
| Name | Type | Req | Description |
|---|---|---|---|
| active_d | string | – | traded within 7 or 30 days |
| cat | string | – | category; children fold (iran → geopolitics) |
| checked | integer | – | min checked trades |
| copy10_lo | number | – | Copy / $10 low end above, USD (n ≥ 10) |
| copyable | number | – | min Copyable %, 0–100 |
| fields | string | – | all, or a comma list of columns |
| format | string | – | – |
| hold_h | number | – | max median hold, hours |
| kind | string | – | bot, human or unclear |
| limit | integer | – | rows, default 50; 0 = all |
| no | string | – | keep rows checked clean of these flags, comma list |
| offset | integer | – | rows to skip |
| q | string | – | name, 0x address, 8-hex or Polymarket URL |
| ret_lo | number | – | ROIC 80% low end above, % |
| sort | string | – | stars (default: then ret_shrunk), ret_lo, copyable, wk or hold_h; rated first |
| stars | string | – | min stars 1–5, or all; default 2 |
| state | string | – | rated, too_few or cant_copy |
| uncrowded | string | – | 1: crowd <= 20%, 0: over |
| url | string | – | a chameleons.markets list URL instead |
| wk | number | – | min copyable trades a week |
No output schema declared.
No examples provided.
get_bot_guide Bot guide ~32
How to build a copy bot and steer it with find_traders' filters (/bots.md). Not advice.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_copy_recipe Agent recipe ~60
One trader's copy recipe for your own agent (/traders/<slug>/copy.md): watch, rules, costs, YAML. Not advice. <=5 KB.
| Name | Type | Req | Description |
|---|---|---|---|
| cat | string | – | – |
| trader | string | yes | as get_trader |
No output schema declared.
No examples provided.
get_trader One trader ~75
One trader: a row per category, rule check, radar with n, stars history, 5 newest trades. <=2 KB.
| Name | Type | Req | Description |
|---|---|---|---|
| cat | string | – | – |
| format | string | – | – |
| trader | string | yes | slug, 0x wallet, 8-hex, Polymarket URL or name |
No output schema declared.
No examples provided.
list_categories Categories ~34
Rows per category at each stars level, plus the page's chip counts. <=800 B.
| Name | Type | Req | Description |
|---|---|---|---|
| format | string | – | – |
No output schema declared.
No examples provided.
How do I install the Chameleons MCP server?
Chameleons is a hosted endpoint at https://chameleons.markets/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · chameleons.markets
claude mcp add --transport http markets-chameleons-polymarket 'https://chameleons.markets/mcp'
What is the Chameleons MCP server?
Chameleons is an MCP server listed in the public MCP registry as markets.chameleons/polymarket. Polymarket traders checked for copy trading: 1–5★ or Can't copy. 90 d · modelled · not advice. This page covers its hosted endpoint (https://chameleons.markets/mcp).
Is the Chameleons MCP server safe to use?
Chameleons scores 72 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Chameleons MCP server expose?
Chameleons exposes 6 tools: find_traders, get_trader, list_categories, explain_rating, get_copy_recipe, get_bot_guide. Their descriptions and schemas cost roughly 712 tokens of context every time the server is loaded.
Does the Chameleons MCP server require authentication?
No. We connected to Chameleons without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Chameleons MCP server still maintained?
Chameleons is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.