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plagtech/spraay-x402-mcp

by · github.com/plagtech/spraay-x402-mcp

MCP server for Spraay x402 Gateway —33 paid tools for onchain data, AI models & batch payments on Base

Unclaimed MIT last commit 6 months ago ai-agentsfinancedefibasepaymentsmcp-servermcpcryptousdc
InstallView source
67Good

Scored 4 months ago · breakdown

About plagtech/spraay-x402-mcp

plagtech/spraay-x402-mcp is an MCP server published by plagtech in the Developer Tools category: mCP server for Spraay x402 Gateway —33 paid tools for onchain data, AI models & batch payments on Base. It has been installed 1 times through Conduid.

Six months or more without a commit doesn't mean the server is broken, but check the open issues (0) before depending on it in production.

Install

Install
npx spraay-x402-mcp

This server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.

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  • ·No dynamic code executionNot checked yet.
  • !Scoped permissionsDoesn't declare a permission scope. Assume it can do anything its process can.

README

Spraay x402 MCP Server

smithery badge Version Tools

Full-stack DeFi infrastructure for AI agents — 57 pay-per-use tools (56 active) on Base with persistent Supabase storage.

Connect Claude, Cursor, or any MCP-compatible AI to onchain payments, token swaps, bridge, payroll, invoicing, escrow, oracle data, analytics, AI inference, email, XMTP messaging, webhooks, cron scheduling, IPFS storage, multi-chain RPC, KYC, auth, audit trail, tax & 200+ AI models.

AI agents pay USDC per request via x402 protocol. No API keys. No accounts. Just plug in and go.

Quick Start

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "spraay": {
      "command": "npx",
      "args": ["-y", "spraay-x402-mcp"],
      "env": {
        "EVM_PRIVATE_KEY": "0xYOUR_PRIVATE_KEY"
      }
    }
  }
}

Cursor

Add to .cursor/mcp.json:

{
  "mcpServers": {
    "spraay": {
      "command": "npx",
      "args": ["-y", "spraay-x402-mcp"],
      "env": {
        "EVM_PRIVATE_KEY": "0xYOUR_PRIVATE_KEY"
      }
    }
  }
}

Smithery

smithery mcp add Plagtech/Spraay-x402-mcp

From Source

git clone https://github.com/plagtech/spraay-x402-mcp
cd spraay-x402-mcp
npm install
echo "EVM_PRIVATE_KEY=0xYOUR_KEY" > .env
npm start

57 Tools — 15 Categories

AI ($0.001–$0.005)

Tool Description Cost
spraay_chat Chat with 200+ AI models (GPT-4, Claude, Llama, Gemini) $0.005
spraay_models List all available models $0.001

Payments ($0.001–$0.01)

Tool Description Cost
spraay_batch_execute Batch pay up to 200 recipients in one tx $0.01
spraay_batch_estimate Estimate gas for batch payment $0.001

DeFi — Swap ($0.001–$0.01)

Tool Description Cost
spraay_swap_quote Get Uniswap V3 swap quote $0.002
spraay_swap_tokens List supported swap tokens $0.001
spraay_swap_execute Execute swap (unsigned tx) $0.01

Oracle ($0.001–$0.003)

Tool Description Cost
spraay_oracle_prices On-chain token prices with confidence scores $0.003
spraay_oracle_gas Gas prices on Base $0.001
spraay_oracle_fx Stablecoin FX rates with depeg detection $0.002

Bridge ($0.001–$0.005)

Tool Description Cost
spraay_bridge_quote Cross-chain bridge quote (8+ chains) $0.005
spraay_bridge_chains Supported bridge chains $0.001

Payroll ($0.001–$0.02)

Tool Description Cost
spraay_payroll_execute Pay up to 200 employees in stablecoins $0.02
spraay_payroll_estimate Estimate payroll gas and fees $0.002
spraay_payroll_tokens List payroll stablecoins $0.001

Invoice ($0.001–$0.005) — persistent

Tool Description Cost
spraay_invoice_create Create invoice with payment tx $0.005
spraay_invoice_list List invoices by address $0.002
spraay_invoice_get Look up invoice by ID $0.001

Analytics ($0.003–$0.005)

Tool Description Cost
spraay_analytics_wallet Wallet profile: balances, age, classification $0.005
spraay_analytics_txhistory Transaction history with decoded types $0.003

Escrow ($0.001–$0.008) — persistent

Tool Description Cost
spraay_escrow_create Create conditional escrow with milestones $0.008
spraay_escrow_list List escrows by address $0.002
spraay_escrow_get Escrow status and details $0.001
spraay_escrow_fund Mark escrow as funded $0.002
spraay_escrow_release Release funds to beneficiary $0.005
spraay_escrow_cancel Cancel escrow $0.002

AI Inference ($0.008–$0.01)

Tool Description Cost
spraay_classify_address AI wallet classification with risk scoring $0.008
spraay_classify_tx AI transaction classification and risk analysis $0.008
spraay_explain_contract AI smart contract analysis and explanation $0.01
spraay_summarize AI intelligence briefing for any address or tx $0.008

Communication ($0.001–$0.005)

Tool Description Cost Status
spraay_notify_email Send email notifications (AgentMail) $0.003 ✅ Live
spraay_notify_sms Send SMS notifications $0.005 ⏳ Simulated
spraay_notify_status Check notification delivery status $0.001 ✅ Live
spraay_webhook_register Register webhook endpoint $0.003 ✅ Persistent
spraay_webhook_test Test webhook delivery $0.002 ✅ Persistent
spraay_webhook_list List registered webhooks $0.001 ✅ Persistent
spraay_webhook_delete Delete webhook $0.001 ✅ Persistent
spraay_xmtp_send Send encrypted XMTP message $0.003 ✅ Live
spraay_xmtp_inbox Read XMTP inbox $0.002 ✅ Live

Infrastructure ($0.001–$0.005)

Tool Description Cost Status
spraay_rpc_call Multi-chain JSON-RPC via Alchemy $0.001 ✅ Live
spraay_rpc_chains List supported RPC chains $0.001 ✅ Live
spraay_storage_pin Pin to IPFS via Pinata $0.005 ✅ Live
spraay_storage_get Retrieve pinned content $0.002 ✅ Live
spraay_storage_status Check pin status $0.001 ✅ Live
spraay_cron_create Create scheduled job $0.005 ✅ Persistent
spraay_cron_list List scheduled jobs $0.001 ✅ Persistent
spraay_cron_cancel Cancel scheduled job $0.001 ✅ Persistent
spraay_logs_ingest Ingest structured logs $0.001 ✅ Persistent
spraay_logs_query Query logs $0.003 ✅ Persistent

Identity & Access ($0.001–$0.05) — persistent

Tool Description Cost
spraay_kyc_verify Initiate KYC/KYB verification $0.05
spraay_kyc_status Check KYC status $0.005
spraay_auth_session Create scoped auth session $0.005
spraay_auth_verify Verify session token $0.001

Compliance ($0.001–$0.02) — persistent

Tool Description Cost
spraay_audit_log Record audit trail entry $0.001
spraay_audit_query Query audit trail $0.005
spraay_tax_calculate Calculate crypto tax (FIFO) $0.01
spraay_tax_report Retrieve tax report $0.02

Data ($0.001–$0.002)

Tool Description Cost
spraay_prices Live token prices on Base $0.002
spraay_balances ETH + ERC-20 balances for any wallet $0.002
spraay_resolve ENS / Basename resolution $0.001

How It Works

  1. AI agent calls a tool (e.g. spraay_batch_execute)
  2. MCP server hits the Spraay x402 Gateway
  3. Gateway returns 402 Payment Required with USDC amount
  4. @x402/axios auto-signs a USDC micropayment from your wallet
  5. Gateway validates payment and returns data
  6. Agent gets the response

All payments are micro-transactions ($0.001–$0.05) in USDC on Base mainnet.

Requirements

  • Wallet: EVM private key with USDC on Base (even $1 covers thousands of calls)
  • Node.js: 18+
  • MCP Client: Claude Desktop, Cursor, or any MCP-compatible client

Environment Variables

Variable Required Default Description
EVM_PRIVATE_KEY Yes — Wallet private key for USDC payments
SPRAAY_GATEWAY_URL No https://gateway.spraay.app Override gateway URL

Links

License

MIT

README mirrored from the source repository 4 months ago. The original is authoritative.

Questions

About plagtech/spraay-x402-mcp

How do I install plagtech/spraay-x402-mcp?

Run npx spraay-x402-mcp, then add the server to your MCP client's configuration. Conduid has recorded 1 installs, so the command is known to work with current clients.

Is plagtech/spraay-x402-mcp safe to use with an AI agent?

Its trust score is 67 out of 100 (good). It passes 0 of 1 static security checks; the failures are listed above. It has no ConduID identity yet, so agent calls to it are not receipted.

Is plagtech/spraay-x402-mcp still maintained?

The last commit was 6 months ago, with 0 open issues. That's long enough that you should check whether the maintainer is responding to issues before depending on it.