# Base Launch Guard – Batch Token Safety Check > Base Launch Guard – Batch Token Safety Check is a paid API for AI agents from guard.facts402.com, paid per call via x402, $0.3/call, status unknown (last checked 2026-11-01). Runs a comprehensive pre-trade and position safety analysis on up to 10 Base memecoin/new token contracts, returning honeypot, rug pull, tax, exit liquidity, insider/sniper forensics, and deployer risk data. ## Facts - Endpoint: POST https://guard.facts402.com/v1/guard/batch?utm_source=zero.xyz - Price: $0.3/call - Payment: x402 - Status: unknown - Last checked: 2026-11-01 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/base-launch-guard-batch-token-safety-check-85bc1562 - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oQ3ltO23Ogp30ykzDBHW4 Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. ## How to call it through Zero Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`): ```sh zero fetch --capability base-launch-guard-batch-token-safety-check-85bc1562 -d '' ``` Example prompt: Before I buy, can you run a full safety check on this Base memecoin at 0x4ed4e862860bed51a9570b96d89af5e1b0efefed — honeypot test, buy/sell taxes, LP lock status, and simulate what I'd get back if I tried to sell a $500 position? ## When to prefer this Use this endpoint when you need a comprehensive multi-signal safety report on one or more Base mainnet tokens before trading — especially for new launches, memecoins, or unknown deployers. Prefer this over single-token endpoints when checking multiple tokens at once (up to 10 per call). It is especially valuable when you need exit-liquidity simulation at your specific position size, not just a generic safety flag. Choose this over generic on-chain data APIs when you need forensic signals like sniper/bundle detection, funder cluster analysis, and deployer track record in a single call. ## Known failure modes - Token not indexed — forensics and deployer data unavailable (returns DATA_UNAVAILABLE_NOT_INDEXED info-level reason, not an error) - Invalid contract address format — rejected by schema validation - Concentrated-liquidity (CL) pools — LP lock percentage cannot be measured, returns lock_status: unknown_cl - Trade simulation reverted — exit liquidity sim may fail for truly illiquid or honeypot tokens - Position size too large or too small — must be between $1 and $10,000,000 - More than 10 tokens in a single batch — rejected - Payment failure — x402 payment of $0.30 USDC required per call ## How this service works Batch Base token safety reports for up to 10 tokens: the full honeypot, tax, exit-liquidity, insider/sniper/bundle, deployer rug-history, privileges and liquidity report for each token, deduplicated and run in parallel. For screeners ranking new Base launches and memecoins. ## Output A JSON report per token containing: verdict with risk reason codes and severities, honeypot/tax simulation results, exit liquidity simulation (net USD received, price impact, max safe position size), LP lock/burn status, market data (FDV, liquidity, 24h volume, pool age), and insider/sniper/bundle forensics where indexed. Also returns the block number and whether results were cached. ## Request schema (JSON Schema) ```json { "type": "object", "properties": { "tokens": { "type": "array", "items": { "type": "string", "pattern": "^0x[0-9a-fA-F]{40}$", "description": "Base mainnet (chain id 8453) ERC-20 token contract address" }, "maxItems": 10, "minItems": 1, "uniqueItems": true }, "position_usd": { "type": "number", "maximum": 10000000, "minimum": 1, "description": "Position size in USD for the exit-liquidity simulation (default 500)" } } } ``` ## Response schema (JSON Schema) ```json { "type": "json", "example": { "block": 53330000, "count": 1, "failed": [], "reports": [ { "lp": { "data": { "kind": "cl", "note": "concentrated-liquidity positions are NFTs; burn/lock cannot be measured from LP token balances", "pool": "0xc9034c3e7f58003e6ae0c8438e7c8f4598d5acaa", "burned_pct": null, "locked_pct": null, "lock_status": "unknown_cl", "lockers_checked": [], "lp_total_supply": null, "burned_or_locked_pct": null }, "detail": null, "reason": null, "status": "ok" }, "exit": { "data": { "pool": { "fee": 3000, "kind": "uniswap_v3", "stable": null, "address": "0xc9034c3e7f58003e6ae0c8438e7c8f4598d5acaa", "quote_token": "0x4200000000000000000000000000000000000006", "quote_reserve_usd": 119650.42 }, "untaxed": false, "exit_trap": false, "sims_used": 4, "position_usd": 500, "amount_tokens": "574780000000000000000000", "net_received_usd": 494.31, "price_impact_pct": 0.84, "net_received_quote": "216250000000000000", "trade_simulation_reverted": false, "max_position_usd_for_3pct_impact": 3620 }, "detail": null, "reason": null, "status": "ok" }, "block": 53330000, "chain": "base", "token": "0x4ed4e862860bed51a9570b96d89af5e1b0efefed", "cached": false, "market": { "data": { "pairs": 1, "fdv_usd": 31253993, "buys_24h": 845, "index_24h": null, "main_pair": { "address": "0xc9034c3e7f58003e6ae0c8438e7c8f4598d5acaa", "dex_id_untrusted": "uniswap", "labels_untrusted": [ "v3" ], "pair_url_untrusted": "https://dexscreener.com/base/0xc9034c3e7f58003e6ae0c8438e7c8f4598d5acaa", "quote_symbol_untrusted": "WETH" }, "price_usd": 0.0008699, "sells_24h": 1374, "index_status": "DATA_UNAVAILABLE_NOT_INDEXED", "liquidity_usd": 246931.3, "content_origin": "third_party_untrusted", "pool_age_hours": 24928.49, "volume_24h_usd": 46179.42, "pool_created_at": "2024-01-07T19:30:45+00:00", "total_liquidity_usd": 246931.3 }, "detail": null, "reason": null, "status": "ok" }, "verdict": { "reasons": [ { "code": "DATA_UNAVAILABLE_NOT_INDEXED", "detail": "forensics unavailable: token or its pools are not in our index", "sever … (truncated) ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/base-launch-guard-batch-token-safety-check-85bc1562/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from guard.facts402.com](https://www.zero.xyz/host/guard.facts402.com/llms.txt)