Embedcalc MCP vs Hwcontract
A side-by-side look at the Embedcalc MCP and Hwcontract MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
E
Embedcalc MCPEmbedded System · Remote HTTP/SSEEmbedded calculators, codegen & schematic review: CRC, timing, struct, IEEE-754, KiCad.42FairAuth: no auth requiredVerdict: choose Embedcalc MCP for embedded system work over a hosted endpoint; choose Hwcontract for embedded system as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
EChoose Embedcalc MCP when
- You need dedicated capabilities in the Embedded System domain.
- You prefer a remote HTTP/SSE transport.
- Its auth model fits you: No auth required.
Choose Hwcontract when
- You need dedicated capabilities in the Embedded System domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
HWCONTRACT_ROOT, HWCONTRACT_TOKEN.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | E Embedcalc MCP | |
|---|---|---|
| Category | Embedded System | Embedded System |
| Quality signal | 42/100 · Fair | 37/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Remote HTTP/SSE | Local subprocess (stdio) |
| Auth | No auth required | Not declared |
| Pricing | Free | Not declared |
| Required env vars | None listed | HWCONTRACT_ROOTHWCONTRACT_TOKEN |
Tools & capabilities
Embedcalc MCP tools
No tool names declared yet. Check the project README from the listing page.
Hwcontract tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Embedcalc MCP
{
"mcpServers": {
"embedcalc-mcp-2": {
"url": "https://www.embedcalc.com/mcp/"
}
}
}
Hwcontract
{
"mcpServers": {
"hwcontract": {
"command": "uvx",
"args": [
"hwcontract"
],
"env": {
"HWCONTRACT_ROOT": "YOUR_HWCONTRACT_ROOT_HERE",
"HWCONTRACT_TOKEN": "YOUR_HWCONTRACT_TOKEN_HERE"
}
}
}
}
Frequently asked questions
Embedcalc MCP is categorized under Embedded System and uses a remote HTTP/SSE transport. Hwcontract belongs to Embedded System and uses a local stdio subprocess. Pick Embedcalc MCP for embedded system work and Hwcontract for embedded system.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Embedcalc MCP is listed as free. Auth: no auth required. Hwcontract has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add embedcalc-mcp-2 and hwcontract as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Embedcalc MCP has a quality signal of 42/100 (Fair) with 0 views, 0 installs and 0 GitHub stars. Hwcontract has 37/100 (Fair) with 0 views, 0 installs and 0 GitHub stars.