Plexa

Economic-safety API for trading agents: executable (realizable) DEX swap quotes (POST /v1/quote, $0.02) and pre-trade token verdicts (POST /v1/pretrade/check, $0.05). Plain HTTP+JSON endpoints paid per-call via x402 v2 (USDC on Base mainnet/Polygon PoS/Arbitrum One/Solana mainnet, no API key) — not a full A2A task server; see https://api.getplexa.com/openapi.json for the exact contract and https://api.getplexa.com/llms.txt for how to pay. Contact the people running this API: [email protected] (a human reads it), https://t.me/getplexa_bot (Telegram), https://github.com/plexa-xyz (source: reference agent, MCP package). No SLA and no support tier — this is a pay-per-call API, not a subscription. Machine-readable contact card: https://api.getplexa.com/contact.

Skills

• Executable swap quote at size
  POST https://api.getplexa.com/v1/quote ($0.02 per call, x402): REALIZABLE fill price for the full requested size — price impact (bps), depth, per-leg route, worst-case slippage, confidence — from canonical on-chain quoters on Base/Polygon/Arbitrum. Not a mid/spot price feed.
  defidexquoteliquidityx402basepolygonarbitrum
• Pre-trade economic-safety verdict
  POST https://api.getplexa.com/v1/pretrade/check ($0.05 per call, x402): verdict avoid|clear for a token on Base — "avoid" only when a listed trap (NO_EXIT_VENUE, EXIT_LIQUIDITY_DRAINED, TRADING_DISABLED) is proven at that block, "clear" otherwise, which means "no provable trap detected", not "safe". Plus risk_profile: age, holder concentration (ANY token age: top-1/top-10 share computed by us from balances + on-chain totalSupply; data age in the response; vendor outage → "unknown" with a reason, never a clean default), liquidity structure incl. the counter-asset pot a sell is paid from, oracle availability, transfer restrictions — as data, not severities. Plus confidence and an executable quote sub-result. Alias paths for /v1/pretrade/check: /v1/token-safety, /v1/rug-check — the SAME endpoint (same engine, same price, same request and response, one shared free trial), not a different product. They exist because agent catalogs index by URL path.
  defitoken-safetyhoneypotpretradex402base

How to call

https://api.getplexa.com

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