CipherHUB Cryptography Toolkit

Name: CipherHUB Cryptography Toolkit
Author: bowenerchen

by bowenerchenversion 1.9.4i★ 0iRuns in the cloud

Registry nameio.github.bowenerchen/cipherhub

How to install

What it does

Production-grade cryptography toolkit with 31 MCP tools for classical, PQC, and KMS workflows.

Connects Runs in the cloud
Account or key No key needed
Category Other

Install

Pick the AI app you use, then copy the settings.

Passed 2/4 checks · What you ask goes through the maker’s server (tools.cipherhub.cloud)

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude · about 2 min

No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it

Open Claude’s Connectors page
CustomizeConnectors
Done
Click “+ Add” → “Add custom connector” and fill in these 2 fields
Copy each value into the field with the same name in Claude, then click Continue
Name · NameCipherHUB Cryptography Toolkit
Remote MCP server URL · Addresshttps://tools.cipherhub.cloud/cipherhub/mcp
Leave Authentication as Claude detected it, then click Add
Done
Turn it on in a chat
+ConnectorsCipherHUB Cryptography Toolkit
Done
Try it
Use CipherHUB Cryptography Toolkit and tell me what you can do for me, then show me one thing
✓ If Claude says it is using CipherHUB Cryptography Toolkit or shows a CipherHUB Cryptography Toolkit tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with ChatGPT on business plans only

ChatGPT Business, Enterprise or Edu on the web, added by a workspace admin or owner · On Free, Plus or Pro: your ChatGPT plan cannot connect MCP yet

Open ChatGPT’s add-MCP page on the web
Plugins+Add custom MCP server
Done
Fill in the name and address
Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin
Name · NameCipherHUB Cryptography Toolkit
Connection · Addresshttps://tools.cipherhub.cloud/cipherhub/mcp
Done
Pick CipherHUB Cryptography Toolkit in a chat
Start a new chat and pick CipherHUB Cryptography Toolkit from your plugins before typing
Done
Try it
Use CipherHUB Cryptography Toolkit and tell me what you can do for me, then show me one thing
✓ If ChatGPT says it is using CipherHUB Cryptography Toolkit or shows a CipherHUB Cryptography Toolkit tool in the answer, you are connected

Menu names checked against OpenAI’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Claude Code · about 2 min

No key, nothing to install

Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done

Paste this command and press Enter

claude mcp add --transport http --scope user cipherhub https://tools.cipherhub.cloud/cipherhub/mcp

Done

Type /mcp in Claude Code
You should see CipherHUB Cryptography Toolkit listed as connected
Done
Try it
Use CipherHUB Cryptography Toolkit and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using CipherHUB Cryptography Toolkit or shows a CipherHUB Cryptography Toolkit tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor · about 2 min

No key, nothing to install

Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use CipherHUB Cryptography Toolkit and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using CipherHUB Cryptography Toolkit or shows a CipherHUB Cryptography Toolkit tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code · about 2 min

No key, nothing to install

Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use CipherHUB Cryptography Toolkit and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using CipherHUB Cryptography Toolkit or shows a CipherHUB Cryptography Toolkit tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

Address for apps that connect over the web

Addresshttps://tools.cipherhub.cloud/cipherhub/mcp

JSON settings are under “For developers” below

Stuck? Ask people who use CipherHUB Cryptography Toolkit💬 Discussion →

For developers: Terminal commands and JSON settings

Over the web

Claude Code

claude mcp add --transport http --scope user cipherhub https://tools.cipherhub.cloud/cipherhub/mcp

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "cipherhub": {
      "url": "https://tools.cipherhub.cloud/cipherhub/mcp"
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "cipherhub": {
      "type": "http",
      "url": "https://tools.cipherhub.cloud/cipherhub/mcp"
    }
  }
}

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

GitHub stars i: 0
Downloads per weeki: Not on npm/PyPI
Licence i: No licence stated
Connection: Runs in the cloud
Transport: streamable-http
Latest versioni: 1.9.4
Categoryi: Other
Published to registryi: Apr 30, 2026
Code last changedi: Nov 8, 2026
Maker: bowenerchen
Repo: bowenerchen/CipherHUB-MCP-Server
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

Claude ChatGPT Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Open WebUI Raycast

All apps, with pros and cons →

What it can do

The server did not answer when we last checked, so we could not read its tools.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 12, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account bowenerchen, which owns the repo
✓ Pass
Still maintained
Code last changed 4 days ago
✕ Fail
Has a licence
No licence file found in the repo
✕ Fail
Endpoint responds
Did not respond within 6 seconds when we checked
– Not applicable
Sign-in with OAuth
Did not respond within 6 seconds when we checked
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Otheri

More stars than 0% of the other 19320 servers in this category
Published to the registry more recently than 6% of the other 19320 servers in this category
Basic checks equal to or better than 10% of the other 19320 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is CipherHUB Cryptography Toolkit safe?

It passed 2 of 4 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed 4 days ago, and the latest version (1.9.4) reached the registry 7 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT Business and above.

What can I use instead?

In the same category: World Monitor, Claude Flow, Windmill

Others in the same category

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

World Monitor

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by koala73Widely used★ 90.5KUpdated today

Runs in the cloud✓ service owner · worldmonitor.app

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Claude Flow

AI orchestration with hive-mind swarms, neural networks, and 87 MCP tools for enterprise dev.

by ruvnetWidely used↓ 13.5K/wk★ 81.5KUpdated 14 months ago

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Windmill

Run Windmill scripts and flows and manage jobs, schedules, resources and variables.

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

CipherHUB MCP Server

Production-grade cryptography toolkit exposing 55 cryptographic operations via MCP (Model Context Protocol). Built and operated by Yang X. CHEN — the engineering decisions behind this service are written up on the blog at cipherhub.cloud.

Overview

CipherHUB enables AI agents to perform cryptographic operations without implementing algorithms themselves. It covers:

Classical Algorithms: AES (CBC/GCM/CTR/XTS), ChaCha20-Poly1305, RSA, ECC (SECP256R1/384R1/521R1, X25519, Ed25519), SHA-2 family, SHAKE
Chinese National Standards (国密): SM2, SM3, SM4, ZUC-128, SM9 identity-based cryptography (GM/T 0044)
Post-Quantum Cryptography: ML-KEM (FIPS 203), ML-DSA (FIPS 204), X25519+ML-KEM-768 Hybrid KEX
Certificates & Structured Crypto Messages: X.509 parsing and verification, CMS SignedData and EnvelopedData (RFC 5652), COSE_Sign1 (RFC 9052), CBOR (RFC 8949), ASN.1/DER dissection
Interoperability, verified against three independent stacks: AWS KMS (70/70), Tencent Cloud KMS (39/39), OpenSSL 3.6 (148/154 — 6 skipped, 0 failed)

Quick Start

MCP Endpoint

https://tools.cipherhub.cloud/cipherhub/mcp

Protocol

Type: Streamable HTTP (MCP protocol revision 2025-03-26)
Format: JSON-RPC 2.0
Stateless: No session, no handshake, no API key — every request is a standalone POST
Deployed version: 1.11.0

Example: Call a Tool

curl -X POST https://tools.cipherhub.cloud/cipherhub/mcp \

-H "Content-Type: application/json" \ -H "Accept: application/json, text/event-stream" \ -d '{ "jsonrpc": "2.0", "method": "tools/call", "params": { "name": "hash_sum", "arguments": { "plain_in_hex": "48656c6c6f", "required_hash_modes": ["Sha384"] } }, "id": 1 }'

The tool payload is a JSON string inside result.content[0].text:

"code": "success", "Results": { "Sha384": { "hash_sum_in_hex": "3519fe5ad2c596efe3e276a6f351b8fc0b03db861782490d45f7598ebd0ab5fd5520ed102f38c4a5ec834e98668035fc", "hash_length": 48 } } }

Note the conventions: binary input and output travel as hex strings (*_in_hex fields), and algorithm names use TitleCase enum values (Sha384, Sm3) — SHA-384 is rejected by the schema.

More runnable examples: examples/curl_examples.sh and examples/quickstart.py (Python stdlib only).

Tools

Hash & MAC

Tool	Description
`hash_sum`	Batch digests: SHA-1/224/256/384/512, SM3, SHAKE128/256
`hmac_sum`	HMAC over the same hash family (SHAKE excluded)

Key Derivation

Tool	Description
`key_derivation`	HKDF (RFC 5869), SM3-KDF (GB/T 32918), PBKDF2-SM3 (RFC 8018)

Random & Utility

Tool	Description
`hello`	Connectivity check; echoes `client_msg` back
`generate_random_data`	CSPRNG bytes (1–128 per call)
`data_padding`	PKCS#7 pad / unpad

Symmetric Encryption

Tool	Description
`block_cipher`	AES-128/256-CBC, SM4-CBC
`stream_cipher`	AEAD: AES-256-GCM, ChaCha20-Poly1305, SM4-GCM
`ctr_cipher`	AES-256-CTR, SM4-CTR counter mode
`xts_cipher`	AES-XTS (IEEE 1619 / NIST SP 800-38E)
`zuc_cipher`	ZUC-128 stream cipher (3GPP, 4G/5G mobile communications)

RSA

Tool	Description
`generate_rsa`	Generate RSA key pair (2048/3072/4096 bits)
`rsa_encryption` / `rsa_decryption`	RSA public-key encryption, private-key decryption
`rsa_sign` / `rsa_verify`	RSA signatures

ECC

Tool	Description
`generate_ecc`	Generate ECC key pair (SECP256R1/384R1/521R1, X25519, Ed25519)
`ecc_key_exchange`	ECDH + HKDF key agreement
`ecc_key_sign` / `ecc_key_verify`	ECDSA (SECP*) and EdDSA (ED25519) signatures

SM2 — Chinese National Standard Curve

Tool	Description
`generate_sm2`	Generate SM2 (SM2P256V1) key pair
`sm2_encryption` / `sm2_decryption`	SM2 public-key encryption
`sm2_sign` / `sm2_verify`	SM2 signatures
`sm2_private_key_structure_parse`	ASN.1 view of an encrypted SM2 private key
`sm2_public_key_to_hex`	PEM public key → raw uncompressed point (04‖X‖Y)

SM9 — Identity-Based Cryptography (GM/T 0044)

Tool	Description
`generate_sm9`	Generate KGC master key pair (Sign or Enc)
`sm9_extract_key`	KGC issues a user private key for an identity
`sm9_encryption` / `sm9_decryption`	Encrypt to an identity, decrypt with user key
`sm9_sign` / `sm9_verify`	Identity-based signatures

Post-Quantum Cryptography

Tool	Description
`ml_kem_keygen`	ML-KEM key generation (FIPS 203)
`ml_kem_encap` / `ml_kem_decap`	ML-KEM encapsulation / decapsulation
`ml_dsa_keygen`	ML-DSA key generation (FIPS 204)
`ml_dsa_sign` / `ml_dsa_verify`	ML-DSA signatures
`ml_dsa_compute_mu`	Standalone 64-byte mu computation (FIPS 204 §6.2)
`hybrid_kex`	X25519 + ML-KEM-768 hybrid key exchange walkthrough

X.509 Certificates

Tool	Description
`cert_parse`	Parse PEM certificates (X.509 and GM SM2 dual paths)
`cert_verify`	Verify an end-entity certificate against its CA

Structured Data

Tool	Description
`cbor_encode` / `cbor_decode`	JSON ↔ CBOR (RFC 8949), decode gives a per-field tree
`asn1_parse`	TLV dissection of any ASN.1/BER bytes, with DER verdict (X.690)
`der_encode`	JSON node DSL → DER bytes (X.690)

COSE & CMS

Tool	Description
`cose_sign1_sign` / `cose_sign1_verify` / `cose_sign1_parse`	COSE_Sign1 build, verify, dissect (RFC 9052/9053)
`cms_signed_sign` / `cms_signed_verify`	CMS SignedData sign and verify (RFC 5652 §5)
`cms_enveloped_encrypt` / `cms_enveloped_decrypt` / `cms_enveloped_parse`	CMS EnvelopedData / authEnvelopedData (RFC 5652 §6, RFC 5083)

Prompts

Six ready-made agent workflows served via prompts/list:

Prompt	Purpose
`pqc_migration_assessment`	Assess post-quantum migration readiness
`algorithm_recommendation`	Algorithm choices by use case
`e2e_encryption_flow`	Full end-to-end encryption walkthrough
`sign_verify_workflow`	Generate key pair, sign, then verify
`verify_key_pair`	Check that a key pair matches (RSA, ECC, SM2)
`hybrid_kex_demo`	X25519 + ML-KEM-768 hybrid exchange demo

Resources

URI	Description
`cipherhub://algorithms`	Complete algorithm catalog
`cipherhub://tool-categories`	Tool categorization
`cipherhub://mcp-usage-guide`	Complete guide for AI agents using these MCP tools
`cipherhub://interop/aws-kms`	AWS KMS interoperability report (70/70 passed)
`cipherhub://interop/tencent-kms`	Tencent Cloud KMS interoperability report (39/39 passed)
`cipherhub://interop/openssl36`	OpenSSL 3.6 interoperability report (148/154 passed)
`cipherhub://benchmark-report`	Performance benchmarks for all operations
`cipherhub://channel-implementation`	SDK channel protocol reference implementation

Agent Skill

A ready-to-use Agent Skills package lives in skills/cipherhub-crypto/. It teaches any SKILL.md-compatible agent (Claude Code and others) when to reach for CipherHUB and how to call it — either by registering the MCP server or with plain HTTP. Install:

cp -r skills/cipherhub-crypto ~/.claude/skills/

Client Configuration

Claude Code

claude mcp add --scope user --transport http cipherhub https://tools.cipherhub.cloud/cipherhub/mcp

Claude Desktop

Add to your Claude Desktop config:

"mcpServers": { "cipherhub": { "url": "https://tools.cipherhub.cloud/cipherhub/mcp" } } }

Custom Client

Use any MCP-compatible client with the endpoint URL.

API Documentation

OpenAPI: https://tools.cipherhub.cloud/.well-known/openapi.yaml
llms.txt: https://tools.cipherhub.cloud/llms.txt

Web Interface

Interactive web UI available at: https://tools.cipherhub.cloud

Author

Yang X. CHEN

Blog: https://cipherhub.cloud — the engineering story behind this toolkit: algorithm choices, GmSSL integration, interoperability testing, and post-quantum migration notes
GitHub: @bowenerchen

License

MIT License

CipherHUB Cryptography Toolkit

What it does

Install

Open Claude’s Connectors page

Click “+ Add” → “Add custom connector” and fill in these 2 fields

Turn it on in a chat

Try it

Open ChatGPT’s add-MCP page on the web

Fill in the name and address

Pick CipherHUB Cryptography Toolkit in a chat

Try it

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Click this button to open Cursor

Open the AI chat in Cursor in Agent mode

Try it

Click this button to open VS Code

Open the AI chat in VS Code in Agent mode

Try it

Over the web

At a glance

Which apps can use it

Related guides

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Discussion

User reviews

Compared with others in Otheri

Common questions

Others in the same category

World Monitor

Claude Flow

Windmill

README from the maker

CipherHUB MCP Server

Overview

Quick Start

MCP Endpoint

Protocol

Example: Call a Tool

Tools

Hash & MAC

Key Derivation

Random & Utility

Symmetric Encryption

RSA

ECC

SM2 — Chinese National Standard Curve

SM9 — Identity-Based Cryptography (GM/T 0044)

Post-Quantum Cryptography

X.509 Certificates

Structured Data

COSE & CMS

Prompts

Resources

Agent Skill

Client Configuration

Claude Code

Claude Desktop

Custom Client

API Documentation

Web Interface

Author

License