MCP Identity vs POPCORN MCP
A side-by-side look at the MCP Identity and POPCORN MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose MCP Identity for cryptography work as a local process; choose POPCORN MCP for cryptography as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose MCP Identity when
- You need dedicated capabilities in the Cryptography domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
LNBITS_INVOICE_KEY.
Choose POPCORN MCP when
- You need dedicated capabilities in the Cryptography domain.
- You prefer a local stdio subprocess transport.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Cryptography | Cryptography |
| Quality signal | 37/100 · Fair | 40/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | LNBITS_INVOICE_KEY | None listed |
| Verified owner |
Tools & capabilities
MCP Identity tools
No tool names declared yet. Check the project README from the listing page.
POPCORN MCP 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.
MCP Identity
{
"mcpServers": {
"mcp-identity": {
"command": "npx",
"args": [
"-y",
"@powforge/mcp-identity"
],
"env": {
"LNBITS_INVOICE_KEY": "YOUR_LNBITS_INVOICE_KEY_HERE"
}
}
}
}
POPCORN MCP
{
"mcpServers": {
"popcorn-mcp": {
"command": "npx",
"args": [
"-y",
"@violetclaire/popcorn-mcp@0.1.3"
]
}
}
}
Frequently asked questions
MCP Identity is categorized under Cryptography and uses a local stdio subprocess. POPCORN MCP belongs to Cryptography and uses a local stdio subprocess. Pick MCP Identity for cryptography work and POPCORN MCP for cryptography.
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.
MCP Identity has no declared pricing — check the project's own site. POPCORN MCP 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 mcp-identity and popcorn-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, MCP Identity has a quality signal of 37/100 (Fair) with 1 views, 0 installs and 0 GitHub stars. POPCORN MCP has 40/100 (Fair) with 0 views, 0 installs and 0 GitHub stars.