Pay for x402 paywalls, datasets, and store checkouts on Solana, behind hard spending caps.
Connect Runs on your machine
claude mcp add mcp -e SOLINKIFY_WALLET_PATH=<SOLINKIFY_WALLET_PATH> -e SOLINKIFY_MAX_PAYMENT_USD=<SOLINKIFY_MAX_PAYMENT_USD> -e SOLINKIFY_DAILY_CAP_USD=<SOLINKIFY_DAILY_CAP_USD> -e SOLINKIFY_OWNER_WALLET=<SOLINKIFY_OWNER_WALLET> -e SOLINKIFY_NETWORK=<SOLINKIFY_NETWORK> -e SOLANA_RPC_URL=<SOLANA_RPC_URL> -- npx -y @solinkify/[email protected]{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@solinkify/[email protected]"
],
"env": {
"SOLINKIFY_WALLET_PATH": "<SOLINKIFY_WALLET_PATH>",
"SOLINKIFY_MAX_PAYMENT_USD": "<SOLINKIFY_MAX_PAYMENT_USD>",
"SOLINKIFY_DAILY_CAP_USD": "<SOLINKIFY_DAILY_CAP_USD>",
"SOLINKIFY_OWNER_WALLET": "<SOLINKIFY_OWNER_WALLET>",
"SOLINKIFY_NETWORK": "<SOLINKIFY_NETWORK>",
"SOLANA_RPC_URL": "<SOLANA_RPC_URL>"
}
}
}
}{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@solinkify/[email protected]"
],
"env": {
"SOLINKIFY_WALLET_PATH": "<SOLINKIFY_WALLET_PATH>",
"SOLINKIFY_MAX_PAYMENT_USD": "<SOLINKIFY_MAX_PAYMENT_USD>",
"SOLINKIFY_DAILY_CAP_USD": "<SOLINKIFY_DAILY_CAP_USD>",
"SOLINKIFY_OWNER_WALLET": "<SOLINKIFY_OWNER_WALLET>",
"SOLINKIFY_NETWORK": "<SOLINKIFY_NETWORK>",
"SOLANA_RPC_URL": "<SOLANA_RPC_URL>"
}
}
}
}{
"servers": {
"mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@solinkify/[email protected]"
],
"env": {
"SOLINKIFY_WALLET_PATH": "<SOLINKIFY_WALLET_PATH>",
"SOLINKIFY_MAX_PAYMENT_USD": "<SOLINKIFY_MAX_PAYMENT_USD>",
"SOLINKIFY_DAILY_CAP_USD": "<SOLINKIFY_DAILY_CAP_USD>",
"SOLINKIFY_OWNER_WALLET": "<SOLINKIFY_OWNER_WALLET>",
"SOLINKIFY_NETWORK": "<SOLINKIFY_NETWORK>",
"SOLANA_RPC_URL": "<SOLANA_RPC_URL>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
SOLINKIFY_WALLET_PATHOptional | Path to the agent's Solana JSON keypair (solana-keygen new -o agent-keypair.json). Needed by the tools that spend; discovery and search tools run without it. |
SOLINKIFY_MAX_PAYMENT_USDOptional | Hard cap for a single payment in USD (default 1) |
SOLINKIFY_DAILY_CAP_USDOptional | Hard cap for total spend per UTC day in USD (default 10) |
SOLINKIFY_OWNER_WALLETOptional | Owner mode (ADR-008): base58 address of the wallet that funds pay_checkout through its on-chain SpendAuthority. The agent signs but never holds the owner's funds; per-payment cap, daily ceiling and revoke are enforced by the Solana program. Unset means payments come from the agent wallet. |
SOLINKIFY_NETWORKOptional | devnet (default) or mainnet-beta |
SOLANA_RPC_URLOptional | Custom Solana RPC endpoint (defaults to the network's public RPC) |
Details
| Package | @solinkify/[email protected] (NPM, stdio) |
| First published | 29 Jul 2026 |
| Last updated | 29 Jul 2026 |
| Registry name | com.solinkify/mcp |
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