MCP Cryptography vs Next Devtools MCP
A side-by-side look at the MCP Cryptography and Next Devtools 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 Cryptography for cryptography work as a local process; choose Next Devtools MCP for developer tools as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose MCP Cryptography when
- You need dedicated capabilities in the Cryptography domain.
- You prefer a local stdio subprocess transport.
- You want tools like
generate_symmetric_key, generate_rsa_key, generate_x25519_key.
Choose Next Devtools MCP when
- You need dedicated capabilities in the Developer Tools domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You want tools like
nextjs_index, nextjs_call, nextjs_docs.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Cryptography | Developer Tools |
| Quality signal | 47/100 · Fair | 86/100 · Excellent |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | No auth required |
| Pricing | Not declared | Free |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Verified |
| GitHub stars | 0 | 832 |
| Directory activity | 0 views 0 installs 0 upvotes | 9 views 0 installs 1 upvotes |
| Tools | 14 | 4 |
| Full listing | View MCP Cryptography | View Next Devtools MCP |
Tools & capabilities
MCP Cryptography tools 14
generate_symmetric_keyGenerate a Fernet symmetric keygenerate_rsa_keyGenerate an RSA key pairgenerate_x25519_keyGenerate an X25519 key pairhash_sha256SHA-256 hashhash_sha512SHA-512 hashhash_sha1SHA-1 hashhmac_signGenerate HMAChmac_verifyVerify HMACpbkdf2_derivePBKDF2 key derivationscrypt_deriveScrypt key derivationgenerate_self_signed_certGenerate self-signed certificateparse_certificateParse X.509 certificate- +2 more on the listing page
Next Devtools MCP tools 4
nextjs_indexDiscover running Next.js dev servers and list each one's runtime MCP tools.nextjs_callCall a runtime tool on a discovered server (errors, routes, logs, Server Actions).nextjs_docsGateway.** Point the agent at version-accurate docs in `node_modules/next/dist/docs/`.browser_evalGateway.** Point the agent at the [`agent-browser`](https://github.com/vercel-labs/agent-browser) CLI for browser automation.
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 Cryptography
{
"mcpServers": {
"mcp-cryptography": {
"command": "uvx",
"args": [
"mcp-cryptography"
]
}
}
}
Next Devtools MCP
{
"mcpServers": {
"vercel-next-devtools-mcp": {
"command": "npx",
"args": [
"-y",
"next-devtools-mcp@latest"
]
}
}
}
Frequently asked questions
MCP Cryptography is categorized under Cryptography and uses a local stdio subprocess. Next Devtools MCP belongs to Developer Tools and uses a local stdio subprocess. Pick MCP Cryptography for cryptography work and Next Devtools MCP for developer tools.
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 Cryptography has no declared pricing — check the project's own site. Next Devtools MCP is listed as free. Auth: no auth required. 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-cryptography and vercel-next-devtools-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, MCP Cryptography has a quality signal of 47/100 (Fair) with 0 views, 0 installs and 0 GitHub stars. Next Devtools MCP has 86/100 (Excellent) with 9 views, 0 installs and 832 GitHub stars.