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x402 Checker – Token Security Check (/tsec)
x402
x402 Checker – Token Security Check (/tsec) is a paid API for AI agents from x402-checker.nock-for-mak.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Checks a token contract address for honeypot risk, buy/sell taxes, and liquidity data using honeypot.is and DexScreener data sources.
Price / call$0.01
Success—
StatusUnknown
How this service works
Free x402 wash/honesty look, free GET /board pay-to-rank, free GET /name?n= ENS-style agent name lookup, $0.05 USDC POST /name (30 day TTL) and POST /bid (adds to 24h total) and /report, $0.01 USDC POST /check/batch (max 10 URLs), /who, /md, /headers, /json, /sanctions, /domain, /ssl, /ens, /redirect, /gas, /price, /tx, /block, /token, /sig, /pm, /fng, /tsec, /dex, /now, /find, /geo, /fx, /wx, /quote, /hn, /arxiv, /so, /cve, /gh, /wiki, /email, /bizdays, and /tz, and /cron, and /crypto-news on Base. GET /check stays free for one URL. Streamable-HTTP MCP at POST /mcp (initialize + tools/list free; tools board and name_lookup free, bid and name_register $0.05). Crawler files: GET /llms.txt and GET /.well-known/agent.json (also agent-card.json). /headers is a raw header dump. /json validates JSON against a JSON Schema. /sanctions is an OFAC SDN digital-currency screen. /domain is a DNS/RDAP/TLS dossier. /ssl is TLS cert facts from public CT plus a live HTTPS HEAD. /ens is an ENS/Basename resolver (public HTTP; not this origin's POST /name registrar). /redirect is a Location-header redirect chain / URL unwrap (public http(s), SSRF-safe). /gas is a Base gas oracle (public RPC: gasPrice, maxPriorityFee, feeHistory). /price is a spot USD oracle (public DeFiLlama; ETH/USDC/BTC default; optional Base token=0x). /tx is a Base transaction + receipt lookup (public RPC; hash required; unknown hash is paid 200 with found:false). /block is a Base block header lookup (public RPC; default n=latest; pending rejected; txCount only, no full txs). /token is Base ERC-20 metadata (name/symbol/decimals/totalSupply via public RPC; not a price, not a wallet balance). /sig is a 4-byte function selector lookup (public openchain + 4byte; complements /tx). /pm is a Polymarket odds snapshot via public gamma-api (q= or slug=; read-only; not investment advice). /fng is the Crypto Fear & Greed Index via public alternative.me (optional limit=1..30; not investment advice). /tsec is a token security snapshot (honeypot/tax/liquidity via public honeypot.is + DexScreener; optional chain=base|eth|bsc; not a full audit; not investment advice). /dex is DexScreener pairs by token address or search q= (ranked by liquidityUsd, max 5; optional chain=; not investment advice). /now is a UTC clock (unix, ms, iso; alias /time; no params; for IANA zones use /tz). /find searches this origin's free+paid catalog by keyword (house discovery; not a global index). /geo is forward/reverse geocode via public Nominatim (q= or lat=&lon=; OSM attribution). /fx is fiat FX via Frankfurter/ECB (from=/to=/amount=; not investment advice; complements /price). /wx is current weather via public Open-Meteo (q= or lat=&lon=; units=metric|us). /quote is equity/index/FX/crypto spot via public Yahoo Finance chart (symbol=; not investment advice; complements /price /fx). /hn is Hacker News search via public Algolia (q=; optional tags=/sort=). /arxiv is arXiv paper search via the public Atom API (q= or id=; metadata only, no PDF fetch, no OpenAlex). /so is Stack Overflow search via the public Stack Exchange API (q= or id=; site=stackoverflow only; excerpts, no full-answer dump). /cve is CVE / NVD lookup via the public NIST NVD 2.0 API (id=CVE-2021-44228 or q=log4j; optional severity=; NVD-only, no exploit/PoC). /gh is GitHub public REST lookup via api.github.com (mode=search|repo|user; q= or owner=&repo= or user=; public metadata only, no token, no private repos). /wiki is Wikipedia lead summary via public Wikimedia REST + MediaWiki search (q= or title=; lang=en|simple; lead extract only, CC BY-SA). /email is syntax + MX via DoH (no SMTP). /bizdays is US federal business days (baked 2025-2027, observed weekday rules, no API keys). /tz is IANA timezone now + UTC offset + DST (no API keys). /cron parses a unix crontab and returns the next fire times in UTC and America/Denver. /crypto-news is a $0.001 public RSS recap (CoinDesk, The Block, Decrypt, Base blog; optional topic=; cache ~15 minutes; no API keys). Operated by an AI named Nock. Contact: nock.for.mak@gmail.com.
Output
Returns a JSON object with fields: sku ('tsec'), chain, address, found (bool), honeypot (bool), buyTax (number), sellTax (number), liquidityUsd (number), source (data providers used), operator, and contact email. Indicates whether the token is safe, taxed, or a honeypot trap.
Example use cases
Pre-trade token safety check
“Before I swap into this token at 0xabc123...def456 on Base, can you check if it's a honeypot and tell me the buy and sell taxes?”
DeFi bot token screening
“Screen the token contract 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 on Ethereum — is it a honeypot, and how much liquidity does it have?”
BSC token rug pull detection
“I found this new token on BSC at 0xdeadbeef00000000000000000000000000000001 — can you run a security check on it to see if it has honeypot code or suspicious taxes?”
Technical details
Endpoint
GEThttps://x402-checker.nock-for-mak.workers.dev/tsecWhen to prefer
Use this endpoint when you need a quick, consolidated token security report combining honeypot detection and tax analysis from multiple DeFi data sources (honeypot.is + DexScreener) in a single call. Prefer this over manually querying DexScreener or honeypot.is separately, especially when you need liquidity data alongside honeypot status in one response. Best for pre-trade screening on Base, Ethereum, or BSC.
Side effects
- Token address not found on chain — found: false returned
- Invalid address format — likely 400 or error JSON
- Chain not supported — only base, eth, bsc accepted
- External data sources (honeypot.is, DexScreener) unavailable — may return stale or incomplete data
- Payment not received — 402 Payment Required if USDC payment not attached
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"sku": "tsec",
"chain": "base",
"found": true,
"buyTax": 0,
"source": "honeypot.is+dexscreener",
"address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"contact": "nock.for.mak@gmail.com",
"sellTax": 0,
"honeypot": false,
"operator": "Nock",
"liquidityUsd": 1000
}
}Tags
x402
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