SpendPreflight

Install

Works with Claude Code, VS Code, Cursor, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install connector/spendpreflight-spendpreflight

About

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools

9 read · 1 write · 0 delete

Secrets

None asked for

Install scripts

Nothing to install (hosted)

Runs as

Hosted (remote endpoint)

Tools (10)

As the server listed them on Oct 25, 2026. Descriptions are the server’s own words; hidden characters are shown as [U+…].

• check_endpointRead an x402 endpoint's observed healthread-only

  Cached x402 endpoint observations, operated by SpendPreflight. Returns a transparent score (or unknown), its components and seven-day unpaid probe history for an already publicly listed URL. Never fetches the caller's URL or pays the endpoint. Unlisted, unavailable or stale data is not charged. This is not a paid-delivery or compliance guarantee. Provide the exact resource URL; add method when the URL has multiple advertised methods. Use for endpoint history and price context before paying. Use check_payee for wallet/name screening or preflight_payment for an allow/hold/block decision. Price $…

• check_listingListing Guard compatibility aliasread-only

  Compatibility alias of listing_guard for existing clients. Prefer listing_guard for a new detailed metadata check; these are the same operation, not two independent checks. Bazaar Listing Guard: CDP technical validation plus a bounded heuristic metadata screen for agent-directed instructions, embedded URLs, tool calls, invisible Unicode, long fields and prices above 100x a fresh Scout category median. Returns riskScore, flagged spans and rewrite suggestions. Not Coinbase policy certification or guaranteed detection. Public HTTPS only; no target payment or request bodies stored. Price $0.05 USD…

• check_payeeCheck payee before payingread-only

  Payee risk check. Screens a payee wallet address and name against the OFAC SDN sanctions list and checks the merchant domain's registration age and DNS. Returns risk low|medium|high|unknown with flags such as sanctioned_address, sanctioned_name_possible, new_domain. Call this before a USDC payment when you only have a payee name, wallet or domain. Provide at least one of domain, address, or name; inputs may be combined, and domain accepts a hostname or URL. For an x402 challenge or cart and an allow/hold/block spending-rule decision, use preflight_payment instead. Price $0.01 per call (free tr…

• check_tokenBase token / contract safety signalsread-only

  Base contract safety signals from bounded public-chain reads and OFAC. Basic: deployed bytecode and SDN match. Deep adds standard owner(), paused(), totalSupply(), decimals() and ERC-1967 storage observations, exact ERC-1167 minimal-proxy target detection, a Sourcify runtime-verification claim matched to current bytecode, and direct-deployment age when independently supported by the creation receipt. Honeypot/sellability, liquidity locks, holder concentration and scam lists are NOT assessed. Missing data is unknown; never a safe-to-buy verdict. Informational, not financial advice. Basic $0.02;…

• find_rv_stationsFillPoint archived station proximityread-only

  Nearest RV dump/water stations from FillPoint RV's dated September 17, 2026 ODbL snapshot. $0.01 for bounded straight-line proximity calculation, not live access, potable-water assurance or road routing. Snapshot age and unknown current conditions are explicit. Full underlying projection is free under ODbL.

• get_service_infoSpendPreflight: pricing, defaults, how to payread-only

  Free, read-only service reference. Use when you need prices, default spending rules, payment setup, trial allowance, or a ready-to-use example call. If you already have a payment challenge or cart, call preflight_payment directly; this reference call is optional. Takes no arguments and performs no payee screening or payment decision. Use check_payee for standalone payee risk; use preflight_payment for an x402 challenge or cart and an allow/hold/block decision.

• lint_endpointFree x402 Lint

  Free x402 Lint by SpendPreflight. Checks a public HTTPS endpoint with an unpaid GET: v1/v2 challenge shape, payTo/asset/network syntax, price, Bazaar metadata and browser CORS headers. Returns a heuristic Listing Guard riskScore (0–100 or unknown), fixes and a public seven-day report link. Positive scores include optional paid Listing Guard and monitoring links; no paid call is made. Scores are not safety or Bazaar acceptance guarantees. No payment or credentials; GET cannot validate a POST-only endpoint or paid delivery. Do not submit private URLs. CI Action: https://github.com/spendpreflight…

• listing_guardBazaar Listing Guardread-only

  Bazaar Listing Guard: CDP technical validation plus a bounded heuristic metadata screen for agent-directed instructions, embedded URLs, tool calls, invisible Unicode, long fields and prices above 100x a fresh Scout category median. Returns riskScore, flagged spans and rewrite suggestions. Not Coinbase policy certification or guaranteed detection. Public HTTPS only; no target payment or request bodies stored. Price $0.05 USDC on Base; shared trial may apply.

• preflight_paymentPreflight a payment (allow / hold / block)read-only

  Call this before any x402/USDC payment to evaluate the actual challenge or cart before signing. Spend preflight for AI agents. Send the x402 PaymentRequired body (v1 or v2) you received, or a cart, plus optional rules (per-payment max, hold threshold, daily cap, allowlists, new-domain days, endpoint category price multiple, liveness and payTo changes). Returns allow|hold|block with reasons, the cheapest acceptable payment option, and a receipt id. Read-only: never signs, settles, or holds funds. Use before every payment. It includes payee screening in its spending-rule decision. For standalone…

• size_solarWattpath solar energy-balance estimateread-only

  Off-grid PV energy-balance estimate based on Wattpath by Nomad Energy Club. Supply daily loads, peak sun hours, PV losses, and optional battery assumptions. No location/weather lookup, electrical design, surge or installation certification. $0.02 per calculation; no stored inputs.

Signals

Last release

Oct 25, 2026 (3 days ago)

Details

Registry name

io.github.spendpreflight/spendpreflight

Version

1.2.0-metadata.2

Auth

Auth not stated

License

License unknown

Website

spendpreflight.com

First seen

Oct 24, 2026

Last checked

Oct 26, 2026

Source

Official MCP Registry