Circuit Sim Lab (電路模擬實驗室)
REMOTE · CIRCUIT-SIM.ENSCON.AI
PCB calculators: trace impedance, crosstalk, diff skew, crystal load cap, Vout tolerance, inrush.
Available components
Last scanned (23 hours ago)
Scores higher than 54% of remote servers
Reachable. Last reached 4 Nov 2026.
Category Developer Tools
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 Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 6 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- 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 Usability52
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 1903 tokens (~317/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 Management77
- Stability observed for 23 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 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
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
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.
- 3 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 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 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.
- 27 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.
- 25 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.
- 23 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.
- 21 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.
- 19 Oct 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.
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 4 Nov 2026 · Probed https://circuit-sim.enscon.ai/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=circuit-sim.enscon.ai | CN=WE1,O=Google Trust Services,C=US | 9 Oct 2026 | 7 Jan 2027 | ECDSA 256 | ECDSA-SHA256 | 232d40587c36fd390e13f31cf88dae1a |
| SANs: circuit-sim.enscon.ai | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of circuit-sim.enscon.ai. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| ai. | present | 1814, 3799 | 8, 8 | Verified |
| enscon.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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://circuit-sim.enscon.ai/mcp | Verified | 200 | |
| http (plaintext) | http://circuit-sim.enscon.ai/mcp | HTTPS enforced | 301 | https://circuit-sim.enscon.ai/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 →
crosstalk 串音（解析式：近端／遠端係數） ~314
兩條耦合線的串音：偶／奇模阻抗用 2D 電場數值解，再算近端串音係數 kb、飽和比例、遠端串音係數。只回傳解析式的部分（不含工具頁的 ngspice 時域波形）。
| Name | Type | Req | Description |
|---|---|---|---|
| er | number | – | 板材介電常數 εr（帶狀線上下用同一個） |
| h | number | – | 微帶線：線到參考層的介質厚度（kind=ms）（mm） |
| ha | number | – | 帶狀線：線頂到上參考層（kind=sl）（mm） |
| hb | number | – | 帶狀線：線底到下參考層（kind=sl）（mm） |
| kind | string | – | ms＝微帶線（外層）、sl＝帶狀線（內層，上下都有參考層） |
| len | number | – | 並行長度（mm） |
| s | number | – | 差動對的線間距（單線 single 模式不用）（mm） |
| t | number | – | 銅厚（35 µm＝1 oz）（mm） |
| tr | number | – | 攻擊線的上升時間（10–90%）（ps） |
| w | number | – | 線寬（mm） |
No output schema declared.
No examples provided.
diff_skew 差動對對內 skew ~258
兩條線的長度差換成時間差（ps），對照介面的上限：USB3／PCIe 用業界經驗值 5 mil（非規範原文，出處見適用範圍）；DisplayPort／HDMI 沒有預設，請用 lim 填晶片廠或規範給的值。
| Name | Type | Req | Description |
|---|---|---|---|
| ee | number | – | 有效介電常數 εeff |
| iface | string | – | 介面：none／usb3／pcie／dp／hdmi |
| lim | number | – | 對內長度差上限（ps）。0 或不帶＝用介面預設（USB3／PCIe 業界經驗值 5 mil）；DP／HDMI 沒有預設，請填晶片廠或規範給的值，沒帶時 limit_ps 回 null（ps） |
| ln | number | – | N 線長度（mm） |
| lp | number | – | P 線長度（mm） |
| rate | number | – | 資料速率（UI＝1000÷速率 ps）（Gbps） |
No output schema declared.
No examples provided.
impedance 差動／單端阻抗（微帶線、帶狀線） ~282
用 2D 電場數值解算微帶線或帶狀線的差動阻抗（Zdiff、Zcomm、奇／偶模）或單端阻抗（Z0），含銅厚。回傳附適用範圍。
| Name | Type | Req | Description |
|---|---|---|---|
| er | number | – | 板材介電常數 εr（帶狀線上下用同一個） |
| h | number | – | 微帶線：線到參考層的介質厚度（kind=ms）（mm） |
| ha | number | – | 帶狀線：線頂到上參考層（kind=sl）（mm） |
| hb | number | – | 帶狀線：線底到下參考層（kind=sl）（mm） |
| kind | string | – | ms＝微帶線（外層）、sl＝帶狀線（內層，上下都有參考層） |
| mode | string | – | diff＝差動對、single＝單線 |
| s | number | – | 差動對的線間距（單線 single 模式不用）（mm） |
| t | number | – | 銅厚（35 µm＝1 oz）（mm） |
| w | number | – | 線寬（mm） |
No output schema declared.
No examples provided.
inrush_current 湧入電流（負載開關控速／直接接電容） ~273
負載開關控速上升時的充電電流、峰值電流、能量與脈衝 I²t（mode=slew），或電容直接接電源時的串聯 R-L-C 步階電流（mode=direct）。
| Name | Type | Req | Description |
|---|---|---|---|
| cout | number | – | 輸出電容（µF） |
| ct | number | – | CT 腳電容（ctsel≠none 時用）（pF） |
| ctsel | string | – | 用 CT 腳電容決定上升時間：none／t918／t965 |
| esr | number | – | 電容 ESR（direct）（mΩ） |
| lh | number | – | 線路電感（direct）（nH） |
| mode | string | – | slew＝負載開關控速、direct＝直接接電容 |
| rl | number | – | 負載電阻（0＝不接）（Ω） |
| rs | number | – | 線路＋電源內阻（direct）（mΩ） |
| tr | number | – | 輸出上升時間（10–90%，ctsel=none 時用）（µs） |
| vin | number | – | 輸入電壓（V） |
No output schema declared.
No examples provided.
output_voltage_tolerance 輸出電壓公差（回授分壓） ~326
回授電阻分壓的輸出電壓：最壞情況（每項取上下限的所有組合）、RSS 統計；可選蒙地卡羅超規比例。
| Name | Type | Req | Description |
|---|---|---|---|
| dist | string | – | 蒙地卡羅的誤差分布 |
| dt | number | – | 溫差（°C） |
| ifb | number | – | 回授腳偏壓電流（典型）（nA） |
| monte_carlo | boolean | – | true＝多跑蒙地卡羅（固定亂數種子，可重現） |
| n | integer | – | 蒙地卡羅次數 |
| r1 | number | – | 上電阻 R1（kΩ） |
| r2 | number | – | 下電阻 R2（kΩ） |
| tc | number | – | 電阻溫漂（ppm/°C） |
| tifb | number | – | 回授腳偏壓電流（最大偏離）（nA） |
| tr | number | – | 電阻公差 ±（%） |
| track | integer | – | 1＝兩顆電阻溫漂同向（互相抵消） |
| tref | number | – | VREF 精度 ±（%） |
| vmax | number | – | 允許的輸出上限（V） |
| vmin | number | – | 允許的輸出下限（V） |
| vref | number | – | 參考電壓 VREF（V） |
No output schema declared.
No examples provided.
xtal_load_cap 晶振負載電容與增益餘裕 ~375
外掛電容 C1、C2 與雜散電容算出實際負載電容 CL、頻率偏移 ppm、振盪增益餘裕、驅動功率，並給出剛好對上規格 CL 的電容值。
| Name | Type | Req | Description |
|---|---|---|---|
| c0 | number | – | 並聯電容 C0（pF） |
| c1 | number | – | 外掛電容 C1。2026-10-12 起預設 26 pF（原 30 pF），配合 cs 預設 5 pF 讓 CL＝18 pF（pF） |
| c2 | number | – | 外掛電容 C2。2026-10-12 起預設 26 pF（原 30 pF），配合 cs 預設 5 pF 讓 CL＝18 pF（pF） |
| cls | number | – | 晶振規格的負載電容 CL（pF） |
| cm | number | – | 動態電容 Cm（fF） |
| cs | number | – | 雜散電容（腳位＋走線）。2026-10-12 起預設 5 pF（原 3 pF），出處 ST AN2867／TI SLLA122（pF） |
| esr | number | – | 等效串聯電阻 ESR（最大值）（Ω） |
| f | number | – | 晶振頻率（MHz） |
| gm | number | – | 晶片振盪器跨導 gm（mA/V） |
| vpp | number | – | C1 那端的峰對峰電壓（算驅動功率用）（V） |
No output schema declared.
No examples provided.
How do I install the Circuit Sim Lab (電路模擬實驗室) MCP server?
Circuit Sim Lab (電路模擬實驗室) is a hosted endpoint at https://circuit-sim.enscon.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 · circuit-sim.enscon.ai
claude mcp add --transport http ai-enscon-circuit-sim 'https://circuit-sim.enscon.ai/mcp'
What is the Circuit Sim Lab (電路模擬實驗室) MCP server?
Circuit Sim Lab (電路模擬實驗室) is an MCP server listed in the public MCP registry as ai.enscon/circuit-sim. PCB calculators: trace impedance, crosstalk, diff skew, crystal load cap, Vout tolerance, inrush. This page covers its hosted endpoint (https://circuit-sim.enscon.ai/mcp).
Is the Circuit Sim Lab (電路模擬實驗室) MCP server safe to use?
Circuit Sim Lab (電路模擬實驗室) scores 69 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 Circuit Sim Lab (電路模擬實驗室) MCP server expose?
Circuit Sim Lab (電路模擬實驗室) exposes 6 tools: impedance, crosstalk, diff_skew, xtal_load_cap, output_voltage_tolerance, inrush_current. Their descriptions and schemas cost roughly 1,828 tokens of context every time the server is loaded.
Does the Circuit Sim Lab (電路模擬實驗室) MCP server require authentication?
No. We connected to Circuit Sim Lab (電路模擬實驗室) without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Circuit Sim Lab (電路模擬實驗室) MCP server still maintained?
Circuit Sim Lab (電路模擬實驗室) is still listed as active in the MCP registry. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.