Clear Tape
REMOTE · APP.CLEARTAPE.AI
Free trading calculators, trading-system rules, a glossary and lesson search. No market data.
Available components
Last scanned (3 hours ago)
Scores higher than 76% 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 Security69
- 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 enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- 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 Usability68
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 2182 tokens (~198/item across 11 items; 11 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 Management73
- Stability observed for 22 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 11 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 12 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (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 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.
- 2 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.
- 31 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.
- 27 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.
- 26 Oct 26 0
- The server rewrote its instructions, which are the text every model session reads security
- 25 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.
- 22 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
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://app.cleartape.ai/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=cleartape.ai | CN=YE1,O=Let's Encrypt,C=US | 10 Oct 2026 | 8 Jan 2027 | ECDSA 256 | ECDSA-SHA384 | 6d03490ae5429967722415a990b72e82120 |
| SANs: *.cleartape.ai, cleartape.ai | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of app.cleartape.ai. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| ai. | present | 1814, 3799 | 8, 8 | Verified |
| cleartape.ai. | 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; includeSubDomains |
| x-content-type-options | nosniff |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://app.cleartape.ai/mcp | Verified | 200 | |
| http (plaintext) | http://app.cleartape.ai/mcp | Inconclusive | 405 |
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 →
calculate_atr_stop ATR stop-loss calculator ~239
A volatility (ATR) stop: entry minus (long) or plus (short) a multiple of the average true range. Give atr, or at least five recent daily ranges (high minus low). Computed with the same function as Clear Tape's free atr stop-loss calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
| Name | Type | Req | Description |
|---|---|---|---|
| atr | number | – | Average true range in USD (e.g. the 14-day ATR). Give this or ranges. |
| entry | number | yes | Entry price per share in USD. |
| lang | string | – | Language of the returned text: "en" (default) or "zh" (Simplified Chinese). |
| multiple | number | yes | ATR multiple for the stop distance, commonly 1.5 to 3. |
| ranges | array | – | Alternative to atr: 5 to 500 recent daily ranges (high minus low) in USD; their average stands in for the ATR. |
| side | string | – | Trade direction: "long" (default) or "short". |
No output schema declared.
No examples provided.
calculate_drawdown_recovery Drawdown recovery calculator ~168
The gain needed to recover from a drawdown and, optionally, how many losing trades in a row at a fixed risk per trade cause it. Computed with the same function as Clear Tape's free drawdown recovery calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
| Name | Type | Req | Description |
|---|---|---|---|
| lang | string | – | Language of the returned text: "en" (default) or "zh" (Simplified Chinese). |
| loss | number | yes | Drawdown in percent of the account (20 = 20%). Above 0, below 100. |
| riskPct | number | – | Optional: risk per trade in percent of the account. Above 0, below 100. |
No output schema declared.
No examples provided.
calculate_expectancy Trading expectancy calculator ~183
Expectancy per trade, per 100 trades, payoff ratio, break-even win rate and profit factor from a win rate and average win and loss. Computed with the same function as Clear Tape's free trading expectancy calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
| Name | Type | Req | Description |
|---|---|---|---|
| avgLoss | number | yes | Average losing trade as a positive amount, in the same unit as avgWin. |
| avgWin | number | yes | Average winning trade as a positive amount, in USD or in R. |
| lang | string | – | Language of the returned text: "en" (default) or "zh" (Simplified Chinese). |
| winRate | number | yes | Win rate in percent (40 = 40%). Above 0, at most 100. |
No output schema declared.
No examples provided.
calculate_kelly_criterion Kelly criterion calculator ~202
Full and fractional Kelly risk per trade from a win rate and payoff ratio, with the edge per 1R and the break-even win rate. Computed with the same function as Clear Tape's free kelly criterion calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
| Name | Type | Req | Description |
|---|---|---|---|
| fraction | number | yes | Share of full Kelly to use, in percent: 25 = quarter Kelly, 50 = half, 100 = full. Above 0, at most 100. |
| lang | string | – | Language of the returned text: "en" (default) or "zh" (Simplified Chinese). |
| payoff | number | yes | Payoff ratio: average win divided by average loss (2 = winners twice the size of losers). |
| winRate | number | yes | Win rate in percent. Above 0, below 100. |
No output schema declared.
No examples provided.
calculate_losing_streak Losing streak calculator ~182
The exact probability of at least one losing streak of a given length over a number of independent trades, the expected longest streak and the streak 95% of sequences stay within. Computed with the same function as Clear Tape's free losing streak calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
| Name | Type | Req | Description |
|---|---|---|---|
| lang | string | – | Language of the returned text: "en" (default) or "zh" (Simplified Chinese). |
| streak | integer | yes | Losing streak length to test, a whole number no larger than trades. |
| trades | integer | yes | Number of trades, a whole number from 1 to 2000. |
| winRate | number | yes | Win rate in percent. Above 0, at most 100. |
No output schema declared.
No examples provided.
calculate_position_size Position size calculator ~197
Position size from the stop: how many shares to buy (or short) so that a stop-out loses a set percentage of the account. Computed with the same function as Clear Tape's free position size calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
| Name | Type | Req | Description |
|---|---|---|---|
| account | number | yes | Account size in USD. |
| entry | number | yes | Entry price per share in USD. |
| lang | string | – | Language of the returned text: "en" (default) or "zh" (Simplified Chinese). |
| riskPct | number | yes | Risk per trade, percent of the account (1 = 1%). Above 0, at most 100. |
| stop | number | yes | Stop price per share in USD. Below the entry for a long, above it for a short; not equal to the entry. |
No output schema declared.
No examples provided.
calculate_risk_reward Risk/reward and R-multiple calculator ~199
Risk/reward ratio of a planned trade, the win rate it needs to break even, and (optionally) an exit expressed as an R multiple. Computed with the same function as Clear Tape's free risk/reward and r-multiple calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
| Name | Type | Req | Description |
|---|---|---|---|
| entry | number | yes | Entry price per share in USD. |
| exit | number | – | Optional: an actual or planned exit price in USD, returned as an R multiple. |
| lang | string | – | Language of the returned text: "en" (default) or "zh" (Simplified Chinese). |
| stop | number | yes | Stop price per share in USD; not equal to the entry. |
| target | number | yes | Target price per share in USD, on the other side of the entry from the stop. |
No output schema declared.
No examples provided.
calculate_trading_cost Trading cost calculator ~276
The cost of one round trip (commissions, bid-ask spread, slippage) in USD, in R, as a share of the target move and of the position, and over a year of trades. Computed with the same function as Clear Tape's free trading cost calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
| Name | Type | Req | Description |
|---|---|---|---|
| commission | number | yes | Commission per order (each side) in USD; 0 if none. |
| entry | number | yes | Entry price per share in USD. |
| lang | string | – | Language of the returned text: "en" (default) or "zh" (Simplified Chinese). |
| shares | number | yes | Number of shares. |
| slippage | number | yes | Slippage per share per side in USD. |
| spread | number | yes | Bid-ask spread per share in USD (paid once per round trip, half on each side). |
| stop | number | yes | Stop price per share in USD; not equal to the entry. |
| target | number | – | Optional: target price per share in USD, on the other side of the entry from the stop. |
| trades | number | – | Optional: round trips per year, for the annual cost. |
No output schema declared.
No examples provided.
get_trading_system_rules Trading system rules ~166
Without id: lists Clear Tape's eleven preset trading systems (trend, breakout, momentum and volume) with their style, holding period and one-line entry, stop and exit. With id: one system's exact written rules (entry, stop, exit, target, parameters, the data it needs, terms, where it differs from the published method), its strengths, weaknesses, who it suits and its sources, worded exactly as on its strategy page. Rules only: no signals, no prices, no performance figures. Educational, not investment advice.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | – | The system to describe; leave out to list them all. |
| lang | string | – | Language of the returned text: "en" (default) or "zh" (Simplified Chinese). |
No output schema declared.
No examples provided.
lookup_glossary_term Trading glossary ~129
Looks up a trading term in Clear Tape's bilingual (English and Simplified Chinese) glossary of about 70 terms, such as "R multiple", "ATR", "drawdown" or "止损". Matches names, abbreviations and pinyin, and tolerates misspellings. Returns the definition, the term in the other language, close matches and links.
| Name | Type | Req | Description |
|---|---|---|---|
| lang | string | – | Language of the returned text: "en" (default) or "zh" (Simplified Chinese). |
| term | string | yes | The term to look up, in English or Chinese. |
No output schema declared.
No examples provided.
search_learning Search trading lessons ~127
Searches Clear Tape's free trading education by keyword: the Learn articles, the Academy lessons, the trading-strategy pages and the calculators, in English or Chinese. Returns titles, one-line summaries and links to read the full page. No market data.
| Name | Type | Req | Description |
|---|---|---|---|
| lang | string | – | Language of the returned text: "en" (default) or "zh" (Simplified Chinese). |
| limit | integer | – | Most results to return (1 to 20, default 8). |
| query | string | yes | Keywords, e.g. "position sizing" or "均值回归". |
No output schema declared.
No examples provided.
How do I install the Clear Tape MCP server?
Clear Tape is a hosted endpoint at https://app.cleartape.ai/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 · app.cleartape.ai
claude mcp add --transport http ai-cleartape-clear-tape 'https://app.cleartape.ai/mcp'
What is the Clear Tape MCP server?
Clear Tape is an MCP server listed in the public MCP registry as ai.cleartape/clear-tape. Free trading calculators, trading-system rules, a glossary and lesson search. No market data. This page covers its hosted endpoint (https://app.cleartape.ai/mcp).
Is the Clear Tape MCP server safe to use?
Clear Tape scores 78 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 Clear Tape MCP server expose?
Clear Tape exposes 11 tools: calculate_position_size, calculate_risk_reward, calculate_expectancy, calculate_atr_stop, calculate_drawdown_recovery, and 6 more. Their descriptions and schemas cost roughly 2,068 tokens of context every time the server is loaded.
Does the Clear Tape MCP server require authentication?
No. We connected to Clear Tape without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Clear Tape MCP server still maintained?
Clear Tape 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.