EasyCircuit

app.easycircuit/easycircuiteasycircuit.appstreamable-httpv1.0.0Scanned 2 hours ago

Electronics prototyping: real parts and pinouts, wiring checks, and shareable circuit designs.

7 tools: 2 change things and 5 only read.

Reads private data · 1
Reads text others write · 1
Can send data out · 0
1 finding

Anlyon alternative

2 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

7 tools

Changes things 2Creates or changes something that can be changed back.Claude Code: ask

check_designRuns EasyCircuit's wiring checks on a complete circuit design without saving it.1 finding
Why it is in this group
- The description's first verb is "run": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "check_design" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "run": a word for a change.
  What this check looks for
Description, as the server wrote it
Runs EasyCircuit's wiring checks on a complete circuit design without saving it. Returns status (passed or blocked), blockingIssues that prevent saving, designWarnings from general electrical rules (such as a part with no ground pin) that do not apply to every part, and reviewWarnings for pin facts that are not yet physically verified.
Annotations the server declares
- title: Check circuit design
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
save_designSaves a circuit design that has no blocking wiring issues and returns a link that opens it in the EasyCircuit editor, with schematic, breadboard and perfboard views, editing, and p…Reads text others writeNo findings
Why it is in this group
- The name "save_design" says "save": a word for a change.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Saves a circuit design that has no blocking wiring issues and returns a link that opens it in the EasyCircuit editor, with schematic, breadboard and perfboard views, editing, and parts ordering. Anyone with the link can open a copy. Designs with blocking issues are not saved.
Annotations the server declares
- title: Save design to EasyCircuit
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: true

Only reads 5Looks things up and changes nothing.Show 5 read-only tools

catalog_summaryCounts catalog parts by status and role.No findings
Why it is in this group
- The description's first verb is "count": a word for reading.
Description, as the server wrote it
Counts catalog parts by status and role.
Annotations the server declares
- title: Catalog summary
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
get_partReturns one catalog part by its catalog id, including its pin evidence and electrical capabilities.No findings
Why it is in this group
- The name "get_part" says "get": a word for reading.
Description, as the server wrote it
Returns one catalog part by its catalog id, including its pin evidence and electrical capabilities.
Annotations the server declares
- title: Get part details
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
get_part_capabilitiesReturns the electrical capabilities of an exact part: pin roles, drive type, voltage ranges, required terminals, protocols, and whether each fact is physically verified.Reads private dataNo findings
Why it is in this group
- The name "get_part_capabilities" says "get": a word for reading.
What it can reach
- private-dataThe description's first sentence says "return" and "drive": it reads files.
Description, as the server wrote it
Returns the electrical capabilities of an exact part: pin roles, drive type, voltage ranges, required terminals, protocols, and whether each fact is physically verified.
Annotations the server declares
- title: Get part capabilities
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
get_part_pinsReturns the pinout of an exact part: each pin's function, voltage, direction and polarity, with the source of each fact and any conflicting sources.No findings
Why it is in this group
- The name "get_part_pins" says "get": a word for reading.
Description, as the server wrote it
Returns the pinout of an exact part: each pin's function, voltage, direction and polarity, with the source of each fact and any conflicting sources. Long pinouts are paged; next_offset is the offset of the next page.
Annotations the server declares
- title: Get part pinout
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
search_partsSearches EasyCircuit's electronics parts catalog by name, function or role (for example 'OLED display', 'temperature sensor', 'ESP32 board').No findings
Why it is in this group
- The name "search_parts" says "search": a word for reading.
Description, as the server wrote it
Searches EasyCircuit's electronics parts catalog by name, function or role (for example 'OLED display', 'temperature sensor', 'ESP32 board'). Returns matching parts with their catalog ids, interfaces, pin roles, and whether each can be ordered in a kit.
Annotations the server declares
- title: Search parts catalog
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged outbound.

Reads private data1: Reads files, mail, messages, databases, secrets, calendars or repositories.; get_part_capabilities
Reads text others write1: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.; save_design
Can send data out0: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Findings

Matches of fixed checks, with the text they matched.

1 warn

Warncheck_design
The server marks "check_design" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "run": a word for a change.
What this check looks for

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http easycircuit https://easycircuit.app/mcp

claude mcp add --transport http easycircuit https://easycircuit.app/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__easycircuit__search_parts",
      "mcp__easycircuit__get_part",
      "mcp__easycircuit__get_part_pins",
      "mcp__easycircuit__get_part_capabilities",
      "mcp__easycircuit__catalog_summary"
    ],
    "ask": [
      "mcp__easycircuit__check_design",
      "mcp__easycircuit__save_design"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as easycircuit. Review it before you use it.

Capability tags behind 2 rules

mcp__easycircuit__get_part_capabilities private-data
mcp__easycircuit__save_design untrusted-input

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/app.easycircuit/easycircuit/verify?hash=b3ef2bf363a2e57d22138cf8353bc7a698d9192432038b00b4bddc99ad6f8be4" | jq -e '.changed == false'

Pinned hash b3ef2bf363a2, from Oct 29, 2026, 22:19 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/app.easycircuit/easycircuit/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Badge

[![anlyon.dev](https://anlyon.dev/badge/app.easycircuit/easycircuit.svg)](https://anlyon.dev/servers/app.easycircuit/easycircuit)

Source: MCP Registry. Synced Oct 29, 2026, 22:17 UTC.