Metaplex Agent Registry MCP Server
by nirholasio.github.nirholas/metaplex-agentv0.2.0
Deploy AI agents on-chain on Solana with an EIP-8004 identity. Deploy fee funds $THREE buybacks.
context tax
queued
security
queued
cold start
queued
freshness
Active2d ago
Install Metaplex Agent Registry MCP server
Install in Claude Code
claude mcp add metaplex-agent -e SOLANA_SECRET_KEY='<solana-secret-key>' -- npx -y @three-ws/metaplex-agent-mcpInstall in Cursor
{
"mcpServers": {
"metaplex-agent": {
"command": "npx",
"args": [
"-y",
"@three-ws/metaplex-agent-mcp"
],
"env": {
"SOLANA_SECRET_KEY": "<solana-secret-key>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"metaplex-agent": {
"command": "npx",
"args": [
"-y",
"@three-ws/metaplex-agent-mcp"
],
"env": {
"SOLANA_SECRET_KEY": "<solana-secret-key>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"metaplex-agent": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@three-ws/metaplex-agent-mcp"
],
"env": {
"SOLANA_SECRET_KEY": "<solana-secret-key>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"metaplex-agent": {
"command": "npx",
"args": [
"-y",
"@three-ws/metaplex-agent-mcp"
],
"env": {
"SOLANA_SECRET_KEY": "<solana-secret-key>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| SOLANA_SECRET_KEY | — | yes | Base58 secret key (or JSON byte array) for the minting wallet. Optional: read tools and the Phantom/Solflare prepare/send flow work without it. |
| SOLANA_RPC_URL | — | — | HTTPS Solana RPC endpoint. Defaults to the public endpoint for the configured network; bring your own (Helius / Quicknode / Triton) for production. |
| METAPLEX_AGENT_NETWORK | — | — | Default cluster: mainnet or devnet. Defaults to mainnet; every tool also takes a per-call network. |
| REQUIRE_CONFIRM | — | — | Refuse to broadcast a mint or registration until the call is re-issued with confirm=true. Default true. |
| DEPLOY_FEE_SOL | — | — | Mainnet deploy fee, in SOL, paid to DEPLOY_FEE_WALLET in the same transaction as the mint. Default 0.02. |
| DEPLOY_FEE_WALLET | — | — | Wallet the deploy fee is paid to. Defaults to the three.ws $THREE buyback wallet; override only when self-hosting a fork. |
| DEPLOY_FEE_ENABLED | — | — | Set false to build a fork that charges no deploy fee. Default true. |
| THREE_HALF_PRICE_AT | — | — | $THREE balance in the paying wallet that halves the deploy fee. Default 50000. |
| THREE_FREE_AT | — | — | $THREE balance in the paying wallet that waives the deploy fee entirely. Default 250000. |
Freshness
Active — last maintenance signal 2d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-10-08 · 2d ago · GitHub
Latest release
2026-09-30 · 10d ago · GitHub · v1.5.2
Package published
no data · npm/PyPI
Registry entry updated
2026-08-19 · 51d ago · official registry · v0.2.0
FAQ
›How do I install the Metaplex Agent Registry MCP server in Claude Code?
Run: claude mcp add metaplex-agent -e SOLANA_SECRET_KEY='<solana-secret-key>' -- npx -y @three-ws/metaplex-agent-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Metaplex Agent Registry require an API key?
Yes. It expects SOLANA_SECRET_KEY, of which 1 is a secret.
›Can I use Metaplex Agent Registry as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Metaplex Agent Registry in the official MCP registry?
Yes, as io.github.nirholas/metaplex-agent.