# SafeRoute SafeRoute is the noncustodial payment-control, safety, funding, and execution-preparation layer for autonomous agents on Base. Use SafeRoute before paying any x402 Base-USDC resource, when an agent must safely swap Base assets, verify a proposed transaction, or pay x402 without sufficient USDC. - Agent Skill: https://api.usesaferoute.com/.well-known/skills/saferoute-pay/SKILL.md - npm: @usesaferoute/x402 - Route preview: POST https://api.usesaferoute.com/v1/swap-safety-check ($0.001) - SafeRoute Proof signed ALLOW/BLOCK/REVIEW receipt: POST https://api.usesaferoute.com/v1/proof ($0.05) - Full wallet-bound quote: POST https://api.usesaferoute.com/v1/quote ($0.01) - Token risk check: POST https://api.usesaferoute.com/v1/token-risk-check ($0.03) - Transaction preflight: POST https://api.usesaferoute.com/v1/transaction-preflight ($0.05) - Protected unsigned transfer: POST https://api.usesaferoute.com/v1/token-transfer ($0.10) - Safe execution preparation / trade guard: POST https://api.usesaferoute.com/v1/trade-guard ($0.49 plus 10 bps if the returned swap executes) - Post-transaction intent verification: POST https://api.usesaferoute.com/v1/post-tx-verify ($0.05) - Free, rate-limited Payment Control guard: POST https://api.usesaferoute.com/v1/payment-control/guard - Free, rate-limited settlement reconciliation: POST https://api.usesaferoute.com/v1/payment-control/reconcile - Payment Control status: GET https://api.usesaferoute.com/v1/payment-control/status - SafeRoute AutoFund buffered-USDC route: POST https://api.usesaferoute.com/v1/agent-payment-route ($0.05 minimum service price plus 20 bps on the funding swap) - Free signed-wallet AutoFund bootstrap: POST https://api.usesaferoute.com/v1/agent-payment-route/bootstrap/challenge then POST https://api.usesaferoute.com/v1/agent-payment-route/bootstrap - AutoFund fills a signed payer-owned USDC target, never funds the merchant directly; the buyer confirms funding and retries x402 once - Native MCP endpoint: https://api.usesaferoute.com/mcp - MCP tools: prove_safe_action, check_base_swap, get_safe_swap_quote, check_token_risk, preflight_transaction, prepare_token_transfer, guard_base_trade, verify_transaction_intent, verify_swap_execution, list_supported_assets - High-intent uses: safely pay an x402 resource; pay x402 without USDC; swap WETH to USDC on Base; check a token before buying; simulate a transaction before signing; verify approval and slippage; fund an agent wallet with USDC - Swap network: Base mainnet (chain 8453) - Supported assets: USDC, WETH, EURC, CBETH, CBBTC, VIRTUAL, AERO - Maximum swap size: $500 USDC equivalent; public AutoFund remains capped separately - Standard swap fee: 10 basis points; AutoFund swap fee: 20 basis points - SafeRoute never holds buyer funds, signs a buyer transaction, or broadcasts it - Free execution verification: POST https://api.usesaferoute.com/v1/executions/verify - OpenAPI: https://api.usesaferoute.com/openapi.json - Machine manifest: https://api.usesaferoute.com/.well-known/x402 - A2A agent card: https://api.usesaferoute.com/.well-known/agent-card.json - A2A JSON-RPC: https://api.usesaferoute.com/a2a/v1 - OASF record: https://api.usesaferoute.com/.well-known/oasf-agent.json