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Zcash shielded operations for AI agents. Memo decoding, attestation, proof verification.
About
Zcash shielded operations for AI agents. Memo decoding, attestation, proof verification.
Security Report
7.0
Moderate7.0Low RiskValid MCP server (10 strong, 8 medium validity signals). 3 known CVEs in dependencies (0 critical, 3 high severity) Package registry verified. Imported from the Official MCP Registry.
12 files analyzed · 4 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
What You'll Need
Set these up before or after installing:
ZAP1 API key for write operationsRequired
Environment variable: ZAP1_API_KEY
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-zk-nd3r-zcash-mcp": {
"env": {
"ZAP1_API_KEY": "your-zap1-api-key-here"
},
"args": [
"-y",
"@frontiercompute/zcash-mcp"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
zcash-mcp
Zcash MCP server. Connects AI agents to shielded Zcash operations. Published on the MCP registry.
MCP (Model Context Protocol) is the standard way for AI models to call external tools. This server exposes 12 Zcash tools that any MCP client can use - Claude Desktop, ChatGPT, OpenClaw, or anything that speaks the protocol.
Tools
| Tool | What it does |
|---|---|
get_balance | ZAP1 attestation history and anchor status for a wallet hash |
send_shielded | Generate a zcash: payment URI (ZIP 321) |
decode_memo | Decode shielded memos - ZAP1 typed, ZIP 302, text, binary |
attest_event | Write a ZAP1 attestation to the Zcash blockchain |
verify_proof | Verify a ZAP1 Merkle proof |
get_stats | ZAP1 protocol stats (leaves, anchors, types) |
get_block_height | Current chain height from Zebra |
lookup_transaction | Raw transaction data by txid |
get_anchor_history | All ZAP1 Merkle root anchors with txids and block heights |
get_anchor_status | Current Merkle tree state: root, unanchored leaves, recommendation |
get_events | Recent ZAP1 attestation events with type, wallet hash, leaf hash |
get_agent_status | Attestation summary for a ZAP1 agent ID |
zcash_create_invoice | Create a ZAP1 payment invoice, returns address, amount, zcash: URI, expiry |
zcash_watch_payment | Poll an invoice until paid or timeout, returns txid, height, amount |
zcash_prove_payment | Fetch the full Merkle proof bundle for a leaf hash |
zcash_identity_register | Register an agent identity via AGENT_REGISTER attestation |
zcash_reputation_score | Fetch agent bond data and policy compliance as a reputation object |
zcash_crosschain_swap | Cross-chain swap intent: ZEC transparent to BTC, USDC, USDT via Ika or NEAR |
zcash_create_wallet | Create a split-key wallet via Ika 2PC-MPC (secp256k1 signs for ZEC, BTC, ETH) |
zcash_sign_mpc | Sign a message hash through Ika 2PC-MPC (neither party sees the full key) |
zcash_shield | Move ZEC from transparent MPC custody to shielded Orchard pool |
zcash_verify_evm | Verify a ZAP1 Merkle proof on-chain via EVM contract (Sepolia, Base, Arbitrum) |
Install
npx @frontiercompute/zcash-mcp
Or install globally:
npm install -g @frontiercompute/zcash-mcp
Configuration
Environment variables:
| Variable | Default | Description |
|---|---|---|
ZEBRA_RPC_URL | http://127.0.0.1:8232 | Zebra node JSON-RPC endpoint |
ZAP1_API_URL | https://pay.frontiercompute.io | ZAP1 attestation API |
ZAP1_API_KEY | none | API key for attest_event |
Claude Desktop
Add to ~/Library/Application Support/Claude/claude_desktop_config.json:
{
"mcpServers": {
"zcash": {
"command": "npx",
"args": ["@frontiercompute/zcash-mcp"],
"env": {
"ZEBRA_RPC_URL": "http://127.0.0.1:8232",
"ZAP1_API_KEY": "your-key-here"
}
}
}
}
Any MCP client
The server communicates over stdio using JSON-RPC. Point your MCP client at the zcash-mcp binary.
Build from source
git clone https://github.com/Frontier-Compute/zcash-mcp.git
cd zcash-mcp
npm ci
npm run build
node dist/index.js
Testing
Offline verification covers the built stdio server and a clean-room install from the packed npm tarball:
npm run test:offline
Live verification hits a real Zebra RPC and ZAP1 API:
ZEBRA_RPC_URL=http://127.0.0.1:8232 \
ZAP1_API_URL=http://127.0.0.1:3080 \
ZAP1_API_KEY=your-key-here \
npm run test:live
test:live drives the MCP server over stdio and exercises the live tool surface, not just the underlying HTTP endpoints. Set ZAP1_AGENT_ID if you want the get_agent_status check to target a specific deployed agent.
GitHub Actions mirrors that split:
.github/workflows/offline-ci.ymlruns deterministic packaging and MCP handshake checks on every push and pull request..github/workflows/live-e2e.ymlruns secret-backed live checks onmain, on a schedule, and by manual dispatch.
Dependencies
- A running Zebra node for chain queries (get_block_height, lookup_transaction)
- The ZAP1 API at pay.frontiercompute.io for attestation tools (get_balance, attest_event, verify_proof, get_stats, get_anchor_history, get_anchor_status, get_events, get_agent_status)
- Memo decoding works locally with no external dependencies
Related Packages
| Package | What it does |
|---|---|
| @frontiercompute/zcash-ika | Zcash + Bitcoin signing via Ika 2PC-MPC |
| @frontiercompute/openclaw-zap1 | OpenClaw skill for ZAP1 attestation |
| @frontiercompute/zap1 | ZAP1 attestation client |
| @frontiercompute/silo-zap1 | Silo agent attestation via ZAP1 |
Links
- Dashboard - live ZAP1 attestation dashboard
- MCP Registry - published MCP server listing
- Frontier Compute - project homepage
License
MIT
quickstart (5 minutes)
add to your MCP config:
{
"mcpServers": {
"zcash": {
"command": "npx",
"args": ["@frontiercompute/zcash-mcp"]
}
}
}
restart your client. ask: "what is the current zcash block height?"
done. 22 tools available. no API key needed for read operations.
get a trial key for write operations:
curl -s -X POST https://frontiercompute.cash/api/trial-key
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