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Directory / Kellian

Kellian

Q: Is Kellian MCP server safe?

QAmcp's test on 31 Oct 2026: None of the hidden-instruction wordings we know were found in its tool descriptions. Its error messages showed no secrets or internal details. All 38 of its tools are labeled read-only. Overall it scored 77/100 on 31 Oct 2026. A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

by kellian.app · https://mcp.kellian.app

Smart money on every Polymarket market: top traders' positions and fresh moves, research, news.

38 tools✓ all read-only✓ no account neededPricing: not listed

Visit website

77 /100

FAIL

13 of 13 checks · 31 Oct 2026

Is Kellian MCP server safe?

None of the hidden-instruction wordings we know were found in its tool descriptions.
Its error messages showed no secrets or internal details.
All 38 of its tools are labeled read-only.
Overall it scored 77/100 on 31 Oct 2026.

A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

What it can do

38 tools, in the server's own words.

kellian_get_market_researchread-only

Read dated research, sources and published AI analyst takes for a binary market.

kellian_get_forecaster_recordread-only

Read a forecaster's public record: its score against the price, open and settled forecasts.

kellian_get_market_newsread-only

Read a market's recent news headlines (last 7 days, newest first): title, link to the publisher, outlet, label (official, wire, local) and the market terms eac…

kellian_get_perp_index_barsread-only

Read the Kellian Perps index (the underlying stock, index, commodity or coin price, recorded every minute Kellian saw whole) as bars for a window: open, high, …

kellian_get_contextread-only

Every market's research in one call, one compact record per market: the market (question, rules, chance, 24h move, close, Polymarket link), the newest headline…

kellian_get_context_changesread-only

Only what changed since your last call, newest first: new headlines, AI analyst views that moved, big price moves, new and closing markets, and (API Pro) top-t…

kellian_get_smart_moneyread-only

Smart money on a Polymarket question (its slug or event id) or one option (condition id): per open option, how many Tier 1-3 traders hold each side (Tier 1 = t…

kellian_get_server_timeread-only

Return the protocol server wall-clock time as Unix epoch milliseconds.

kellian_list_capabilitiesread-only

List protocol capabilities available at the authenticated agent tier (endpoint catalog for the current key).

kellian_list_chainsread-only

List all supported blockchain networks

kellian_get_token_releaseread-only

Return the active versioned participation-token profile, deployment evidence, test/production stage, and distributor release IDs.

kellian_list_collateralread-only

List public launch collateral tokens (symbol, address, decimals, chainId).

kellian_get_contractsread-only

Canonical per-chain collateral capabilities and addresses (per-collateral MarketRouter proxies, the shared OutcomeToken1155, and factories) plus the exact one-…

kellian_get_feesread-only

Canonical two-lane fee schedule read from live factory defaults: LMSR (buy 0% / sell+claim exit) and ORDERBOOK (place 0% / taker fee charged to the economic ta…

kellian_get_rulesread-only

Canonical public protocol facts: resolution timing, final review, bonds, fund flows and actor conditions.

kellian_list_leaderboardread-only

Ranked public leaderboard, the same data people see.

kellian_get_market_stateread-only

Get marketState, lifecycleStage, stageDeadline, tradingEndsAt and outcome.

kellian_discover_renderersread-only

List the built-in market surface renderer types with data schemas and examples.

kellian_list_marketsread-only

List prediction markets on Kellian.

kellian_get_marketread-only

Get detailed information about a specific prediction market

kellian_list_market_commentsread-only

Read human comments on a market (newest first, read-only): comment body + timestamps, the commenter wallet, their black-box reputation tier, and the position t…

kellian_get_market_depthread-only

5-level market depth for a market: a simulated LMSR buy ladder (kind: 'amm') or a live aggregated order-book snapshot (kind: 'orderbook'), discriminated by `ki…

kellian_get_market_chartread-only

Get price history + latest for a market.

kellian_get_market_tradesread-only

Recent trades for a market (newest first): buy/sell side, size (wei), post-trade price (0..1), and the trader wallet.

and 14 more

Test results

Safe mode: only tools labeled read-only were run. How the test works

✕
Resources and prompts work
2 failed, 2 warnings (7 resources)
- !7 of 7 resources have no description, so people can't tell what they contain.
- ✕problee://markets/{address}: Listed, but opening it is refused: MCP error -32602: Resource problee://markets/%7Baddress%7D not found
- ✕problee://markets/{address}/content: Listed, but opening it is refused: MCP error -32602: Resource problee://markets/%7Baddress%7D/content not found
- !Opened 5 of 7 resources
- and 1 more
fail
!
Ready for the newest MCP version
1 warning
- !Uses an older MCP version (2025-11-25). It works today, but it isn't on the July 2026 version (2026-07-28) yet.
note
!
Every tool is described
12 warnings
- !kellian_get_market_research: Inputs with no description: chainId
- !kellian_get_market_news: Inputs with no description: chainId
- !kellian_get_perp_index_bars: Inputs with no description: symbol
- !kellian_get_context_changes: Inputs with no description: types, ids, cursor
- !kellian_list_leaderboard: Inputs with no description: limit, offset
- !kellian_get_market_state: Inputs with no description: marketAddress, chainId
- !kellian_list_markets: Inputs with no description: category, pageSize, chainId
- !kellian_get_market: Inputs with no description: address, chainId
- and 4 more
note
!
Tools work with good inputs
2 warnings
- !kellian_list_markets: Answered with about 155 KB of text. Many AI apps cut off tool answers this big, so the AI may never see the end of it.
- !kellian_list_pending_resolution_markets: Answered with about 552 KB of text. Many AI apps cut off tool answers this big, so the AI may never see the end of it.
- and 36 more
note
!
Follows MCP best practices (not scored yet)
1 tip (not scored)
- !The tool list is about 234 KB (roughly 59k tokens). AI apps send it with every message, so it takes that much of the AI's memory before any work starts.
note
✓
ConnectsConnected in 525 ms
pass
✓
Lists its toolsFound 38 tools
pass
✓
Tools are labeled safe or dangerousEvery tool has a safety label
pass
✓
No known hidden instructionsNone of the hidden-instruction wordings we know were found in tool descriptions. New wordings can get past this check.
pass
✓
Bad inputs give a clean error
All good
- ✓kellian_get_market_research: Refused missing required input "address" with a clear error
- ✓kellian_get_market_research: Refused wrong type for "address" with a clear error
- ✓kellian_get_forecaster_record: Refused missing required input "address" with a clear error
- ✓kellian_get_forecaster_record: Refused wrong type for "openCursor" with a clear error
- ✓kellian_get_market_news: Refused missing required input "address" with a clear error
- ✓kellian_get_market_news: Refused wrong type for "address" with a clear error
- ✓kellian_get_perp_index_bars: Refused missing required input "symbol" with a clear error
- ✓kellian_get_perp_index_bars: Refused wrong type for "symbol" with a clear error
- and 32 more
pass
✓
Tools work together
5 chains working
- ✓kellian_get_context → kellian_list_collateral: kellian_list_collateral found what kellian_get_context returned (chainId = "8453")
- ✓kellian_get_context → kellian_get_contracts: kellian_get_contracts found what kellian_get_context returned (chainId = "8453")
- ✓kellian_get_context → kellian_list_markets: kellian_list_markets found what kellian_get_context returned (chainId = "8453")
- ✓kellian_get_context → kellian_get_trade_status: kellian_get_trade_status found what kellian_get_context returned (chainId = "8453")
- ✓kellian_list_chains → kellian_list_collateral: kellian_list_collateral found what kellian_list_chains returned (chainId = "8453")
pass
✓
Fast enough
All good
- ✓Connecting took 525 ms
- ✓Listing tools took 81 ms
- ✓Average tool answer: 115 ms
- ✓kellian_get_market_research: Slowest tool: kellian_get_market_research (636 ms)
pass
✓
No secrets leakedChecked 66 error messages: no secrets or internal details
pass

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Score over time

31 Oct 202677

One test so far. New tests will show here.

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