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Token swaps and honeypot/rug checks for AI agents on 8 chains, paid per-call in USDC via x402.
About
Token swaps and honeypot/rug checks for AI agents on 8 chains, paid per-call in USDC via x402.
Security Report
Valid MCP server (2 strong, 3 medium validity signals). No known CVEs in dependencies. ⚠️ Package registry links to a different repository than scanned source. Imported from the Official MCP Registry. 1 finding(s) downgraded by scanner intelligence.
3 files analyzed · 1 issue 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:
Environment variable: TOLLBOOTH_PAYER_KEY
Environment variable: TOLLBOOTH_URL
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"xyz-tollboothswap-api-tollbooth": {
"env": {
"TOLLBOOTH_URL": "your-tollbooth-url-here",
"TOLLBOOTH_PAYER_KEY": "your-tollbooth-payer-key-here"
},
"args": [
"-y",
"tollboothswap-mcp"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
tollboothswap-mcp — Token Swaps & Honeypot Checks for AI Agents (MCP Server)
MCP server for Tollbooth: non-custodial token swap execution and token safety screening on 8 chains — Solana, Base, Ethereum, Arbitrum, Polygon, Optimism, BSC, Avalanche. Quotes and symbol resolution are free; swap builds (~$0.005) and safety checks ($0.01) are paid per-call in USDC via the x402 protocol — no API keys, no accounts, no subscriptions.
Quick start
npx tollboothswap-mcp
Claude Desktop / Cursor / any MCP client
{
"mcpServers": {
"tollbooth": {
"command": "npx",
"args": ["-y", "tollboothswap-mcp"],
"env": {
"TOLLBOOTH_PAYER_KEY": "0x<EVM private key holding USDC on Base>"
}
}
}
}
TOLLBOOTH_PAYER_KEY is optional: without it the free tools
(resolve_token, get_quote, get_service_info, get_receipt) work fully,
and paid tools return x402 payment instructions instead of results. With it,
tolls are paid automatically and gaslessly (EIP-3009 — the key never spends
gas, only USDC).
Tools
| Tool | Cost | What it does |
|---|---|---|
resolve_token | free | Ticker symbol → contract addresses, ranked by DEX liquidity |
get_quote | free | Fee-inclusive indicative swap quote |
check_token | $0.01 | Honeypot / rug-pull / freeze-authority / sell-tax screening with verdict + findings |
build_swap | ~$0.005 | Unsigned, ready-to-sign swap transaction + HMAC-signed receipt (safeMode screens both tokens first) |
get_receipt | free | Verify a past build receipt by id |
get_service_info | free | Service manifest: chains, fees, pricing |
Trust model
Tollbooth is non-custodial: it builds transactions but never holds keys or funds. Your agent signs and submits everything with its own wallet. Every paid build returns a signed receipt for audit trails.
Links
- Full tutorial: https://api.tollboothswap.xyz/guides/agent-swaps.md
- Agent usage guide: https://api.tollboothswap.xyz/skill.md
- Runnable HTTP examples: https://github.com/soundsparkaudiolab/tollbooth-examples
License
MIT
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