x402 Doctor - Preflight

x402 Doctor - Preflight

Paid

Live

Pricing

< $0.01

USDC

Calls (7d)

23

Callers (7d)

11

Volume (7d)

$0.02

Parameter	Type	Description
type*	string
method*	string
queryParams	object	Fields: url, method, max_usd, network

Parameter	Type	Description
type*	string
example	object	Fields: url, cached, method, options, reasons, signals, summary, verdict, checked_at, safe_to_pay, recommended_option

Tool ID

5825541975491465748

Chain

Base

Last Checked

Created

Updated

Registry

x402 bazaar

Endpoint

https://x402-doctor.fizzl.eu/api/v1/preflight

< $0.01 USDC

x402 Doctor - Preflightx402-doctor.onrender.com

Is this x402 endpoint safe to pay? Check it before your AI agent pays: go / caution / no_go, the recommended payment option, and why (payment would fail, over your budget, price above advertised, not HTTPS, unknown token). Never pays the endpoint. Cached 10 min.

presign-guard - Check explainpresign-guard.onrender.com

Pre-sign risk verdict plus a plain-language explanation in Dutch or English

presign-guard - Check explainpresign-guard.fizzl.eu

Is this transaction, approval or signature safe to sign, explained for a person? The same pre-sign verdict as /v1/check (green/orange/red + reason codes) plus a short plain-language explanation in English or Dutch, for an agent to show its user before asking for approval. Bulk: 100 checks for $0.80 via /v1/credits.

presign-guard - Checkpresign-guard.onrender.com

Is this transaction, approval or signature safe to sign? Check it before your AI agent or wallet signs it: pre-sign verdict (green/orange/red + reason codes) for EVM transactions, token approvals and Permit/Permit2/EIP-3009/Seaport signatures. Screens the spender or recipient wallet for OFAC sanctions and scam, phishing or theft reports, and flags unlimited allowances, plain-wallet spenders and risky tokens. Bulk: 100 checks for $0.80 via /v1/credits.

Ichimoku Signal - Setupsichimoku-signal.onrender.com

Which crypto coins have a trade setup right now? For 148 top-200 coins: the six-indicator confluence signal (Ichimoku, RSI, MACD, EMA 50/200, Bollinger, OBV) plus a trade plan in that direction (entry, stop, two take profit targets, risk/reward), ranked best first. Filters: long/short, minimum risk/reward, top N. Levels from price history, not trade advice.

presign-guard - Checkpresign-guard.fizzl.eu

Is this transaction, approval or signature safe to sign? Check it before your AI agent or wallet signs it: pre-sign verdict (green/orange/red + reason codes) for EVM transactions, token approvals and Permit/Permit2/EIP-3009/Seaport signatures. Screens the spender or recipient wallet for OFAC sanctions and scam, phishing or theft reports, and flags unlimited allowances, plain-wallet spenders and risky tokens. Bulk: 100 checks for $0.80 via /v1/credits.

presign-guard - Tokenpresign-guard.onrender.com

Is this token safe to buy, or a honeypot or rug pull? Checks a Solana or EVM token before you buy, hold or accept it (mint or freeze authority still active, LP not locked, buy/sell tax, low liquidity, brand-new token, concentrated holders) and answers green/orange/red with a grade (SAFE/CAUTION/RISKY/AVOID), the reasons, a one-line summary and market data

PlainText - Check walletsmartcontractexplainer.onrender.com

Check an EVM wallet's live token/NFT approvals and get a plain-language verdict (SAFE, CAUTION or RISK) with an explanation

presign-guard - Tokenpresign-guard.fizzl.eu

Is this token safe to buy, or a honeypot or rug pull? Checks a Solana or EVM token before you buy, hold or accept it (mint or freeze authority still active, LP not locked, buy/sell tax, low liquidity, brand-new token, concentrated holders) and answers green/orange/red with a grade (SAFE/CAUTION/RISKY/AVOID), the reasons, a one-line summary and market data. Bulk: 100 checks for $0.80 via /v1/credits.

x402 Doctor - Diagnosex402-doctor.onrender.com

Why is my x402 endpoint broken? Diagnose and debug an x402 payment endpoint (or MCP server) when payments fail: checks the 402 challenge, accepts[] (network, payTo, amount, asset), resource URL, Solana settlement readiness, which wallets and agents can pay, Bazaar/OpenAPI discovery and the browser paywall. Returns every check with a fix hint. Read-only: never pays.

PlainText - Check walletplaintext.fizzl.eu

Check an EVM wallet's live token/NFT approvals and get a plain-language verdict (SAFE, CAUTION or RISK) with an explanation

x402 Doctor - Diagnosex402-doctor.fizzl.eu

Why is my x402 endpoint broken? Diagnose and debug an x402 payment endpoint (or MCP server) when payments fail: checks the 402 challenge, accepts[] (network, payTo, amount, asset), resource URL, Solana settlement readiness, which wallets and agents can pay, Bazaar/OpenAPI discovery and the browser paywall. Returns every check with a fix hint. Read-only: never pays. Bulk: 1000 credits for $0.80 via /api/v1/credits.