SpendPreflight

Use when you need cached public endpoint evidence. 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 $0.005 per cached lookup (shared free trial first). An unknown score means missing evidence; repeated paid calls may incur another charge. Price: 0.005 USDC. Minimal input example: {"url":"https://api.spendpreflight.com/v1/check","method":"GET"}. Illustrative output excerpt: {"score":null,"components":{},"history":[],"disclaimer":"An unknown score is missing evidence, not an endpoint failure."}. Illustrative output excerpt, not a live result, signature, approval or guarantee. Freshness/data/availability checks still apply. How to pay (MCP): First use the existing shared allowance of 3 eligible calls per IP per UTC day, without payment metadata. This is shared with eligible HTTP trials, not a new allowance. Use an x402-capable MCP client. A generic MCP connector without payment support cannot complete a paid continuation. On payment required, STOP. Inspect the exact accepts amount, asset, network and payTo; obtain explicit wallet/budget approval before continuing. Only after approval, let the configured x402 MCP client attach its signed payload in _meta["x402/payment"] and retry the same tools/call arguments. Never send a separate USDC transfer or paste keys into tool arguments. Never silently fall back from free access to payment. If a signed attempt has an unknown outcome, inspect that authorization/transaction; do not create another automatically.

Use when an existing integration calls the listing_guard compatibility alias. 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 USDC on Base; shared trial may apply. Price: 0.05 USDC. Minimal input example: {"url":"https://api.spendpreflight.com/v1/check","method":"GET"}. Illustrative output excerpt: {"cdpPreflight":{"valid":true,"preflight":[],"index":null},"riskScore":0,"flags":[],"suggestedRewrite":[],"screenComplete":true,"priceCompared":false,"indexActive":null,"example_note":"Illustrative response only; not a live result or safety guarantee."}. Illustrative output excerpt, not a live result, signature, approval or guarantee. Freshness/data/availability checks still apply. How to pay (MCP): First use the existing shared allowance of 3 eligible calls per IP per UTC day, without payment metadata. This is shared with eligible HTTP trials, not a new allowance. Use an x402-capable MCP client. A generic MCP connector without payment support cannot complete a paid continuation. On payment required, STOP. Inspect the exact accepts amount, asset, network and payTo; obtain explicit wallet/budget approval before continuing. Only after approval, let the configured x402 MCP client attach its signed payload in _meta["x402/payment"] and retry the same tools/call arguments. Never send a separate USDC transfer or paste keys into tool arguments. Never silently fall back from free access to payment. If a signed attempt has an unknown outcome, inspect that authorization/transaction; do not create another automatically.

Use when you need standalone payee screening without a payment decision. 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 trial first). Price: 0.01 USDC. Minimal input example: {"name":"Example Shop LLC"}. Illustrative output excerpt: {"risk":"low","flags":[],"sanctions":{"address_match":null,"name_matches":[]},"domain":null,"data_as_of":"2026-10-30T00:00:00Z","disclaimer":"Illustrative non-match, not sanctions clearance."}. Illustrative output excerpt, not a live result, signature, approval or guarantee. Freshness/data/availability checks still apply. How to pay (MCP): First use the existing shared allowance of 3 eligible calls per IP per UTC day, without payment metadata. This is shared with eligible HTTP trials, not a new allowance. Use an x402-capable MCP client. A generic MCP connector without payment support cannot complete a paid continuation. On payment required, STOP. Inspect the exact accepts amount, asset, network and payTo; obtain explicit wallet/budget approval before continuing. Only after approval, let the configured x402 MCP client attach its signed payload in _meta["x402/payment"] and retry the same tools/call arguments. Never send a separate USDC transfer or paste keys into tool arguments. Never silently fall back from free access to payment. If a signed attempt has an unknown outcome, inspect that authorization/transaction; do not create another automatically.

Use when you need a bounded Base token assessment with explicit unassessed areas. 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; deep $0.05. Shared trial first. Price: 0.02 basic; 0.05 deep USDC. Minimal input example: {"address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","chain":"eip155:8453","tier":"basic"}. Illustrative output excerpt: {"verdict":"unknown","assessment_complete":false,"unassessed":["honeypot_and_sellability","mint_and_blacklist_privileges","liquidity_lock_or_removability","holder_concentration","non_OFAC_scam_lists","complete_owner_privilege_and_proxy_analysis"]}. Illustrative output excerpt, not a live result, signature, approval or guarantee. Freshness/data/availability checks still apply. How to pay (MCP): First use the existing shared allowance of 3 eligible calls per IP per UTC day, without payment metadata. This is shared with eligible HTTP trials, not a new allowance. Use an x402-capable MCP client. A generic MCP connector without payment support cannot complete a paid continuation. On payment required, STOP. Inspect the exact accepts amount, asset, network and payTo; obtain explicit wallet/budget approval before continuing. Only after approval, let the configured x402 MCP client attach its signed payload in _meta["x402/payment"] and retry the same tools/call arguments. Never send a separate USDC transfer or paste keys into tool arguments. Never silently fall back from free access to payment. If a signed attempt has an unknown outcome, inspect that authorization/transaction; do not create another automatically.

Use when you need public DNS email-authentication observations for a domain. Observe a public domain’s MX, SPF, direct DMARC record, supplied DKIM selectors and resolver-reported DNSSEC evidence.0.005 USDC per usable report, no shared trial. Fixed public Cloudflare DoH only, at most7 queries/shared8s/128KiB, no SMTP, sender authentication test, DNS changes or query storage. Missing selectors and inherited DMARC policy stay unknown. Published records and resolver AD are not proof of inbox delivery, alignment, DNSSEC validation by this service or a secure domain. Price: 0.005 USDC. Minimal input example: {"domain":"example.org","selectors":["selector1"]}. Illustrative output excerpt: {"spf":{"status":"unknown"},"dmarc":{"status":"unknown","alignment_verified":false},"mx":{"status":"unknown","smtp_reachability":"untested"}}. Illustrative output excerpt, not a live result, signature, approval or guarantee. Freshness/data/availability checks still apply. How to pay (MCP): No shared free trial for this tool. Use an x402-capable MCP client. A generic MCP connector without payment support cannot complete a paid continuation. On payment required, STOP. Inspect the exact accepts amount, asset, network and payTo; obtain explicit wallet/budget approval before continuing. Only after approval, let the configured x402 MCP client attach its signed payload in _meta["x402/payment"] and retry the same tools/call arguments. Never send a separate USDC transfer or paste keys into tool arguments. Never silently fall back from free access to payment. If a signed attempt has an unknown outcome, inspect that authorization/transaction; do not create another automatically.

Use when you need nearby RV stations from the dated FillPoint snapshot; see Data APIs. 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. Price: 0.01 USDC. Minimal input example: {"latitude":42.07,"longitude":-88.36,"radius_km":50,"limit":10,"service":"dump"}. Illustrative output excerpt: {"results":[],"distance_method":"great_circle_not_road_distance"}. Illustrative output excerpt, not a live result, signature, approval or guarantee. Freshness/data/availability checks still apply. How to pay (MCP): First use the existing shared allowance of 3 eligible calls per IP per UTC day, without payment metadata. This is shared with eligible HTTP trials, not a new allowance. Use an x402-capable MCP client. A generic MCP connector without payment support cannot complete a paid continuation. On payment required, STOP. Inspect the exact accepts amount, asset, network and payTo; obtain explicit wallet/budget approval before continuing. Only after approval, let the configured x402 MCP client attach its signed payload in _meta["x402/payment"] and retry the same tools/call arguments. Never send a separate USDC transfer or paste keys into tool arguments. Never silently fall back from free access to payment. If a signed attempt has an unknown outcome, inspect that authorization/transaction; do not create another automatically.

Use when you need more tools: browse Buyers, Sellers, Books and Data APIs, prices, rules and examples. If you have a payment challenge, call preflight_payment directly. 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.

Use when you sell via x402 and want a free check of your public payment challenge. Free x402 Lint by SpendPreflight. Includes a free passive Security Check summary; optional full report with fixes is $0.10, no automatic payment. 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/x402-lint-action; report badge: /v1/lint/reports/{id}/badge.svg reads only the existing seven-day snapshot, never runs a check.

Use when you need a detailed public listing metadata check. 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. Price: 0.05 USDC. Minimal input example: {"url":"https://api.spendpreflight.com/v1/check","method":"GET"}. Illustrative output excerpt: {"cdpPreflight":{"valid":true,"preflight":[],"index":null},"riskScore":0,"flags":[],"suggestedRewrite":[],"screenComplete":true,"priceCompared":false,"indexActive":null,"example_note":"Illustrative response only; not a live result or safety guarantee."}. Illustrative output excerpt, not a live result, signature, approval or guarantee. Freshness/data/availability checks still apply. How to pay (MCP): First use the existing shared allowance of 3 eligible calls per IP per UTC day, without payment metadata. This is shared with eligible HTTP trials, not a new allowance. Use an x402-capable MCP client. A generic MCP connector without payment support cannot complete a paid continuation. On payment required, STOP. Inspect the exact accepts amount, asset, network and payTo; obtain explicit wallet/budget approval before continuing. Only after approval, let the configured x402 MCP client attach its signed payload in _meta["x402/payment"] and retry the same tools/call arguments. Never send a separate USDC transfer or paste keys into tool arguments. Never silently fall back from free access to payment. If a signed attempt has an unknown outcome, inspect that authorization/transaction; do not create another automatically.

Use when you need a signed observation of an existing Base USDC transfer. Verify a native Base USDC transfer by tx_hash (optional log_index), or exact pay_to + decimal amount + past start/end (max 90 days). Ambiguous matches fail without charge. Signed observation, OFAC flags, confirmations and printable HTML. Not invoice ownership or finality proof. Price $0.01 USDC on Base. No free trial. Price: 0.01 USDC. Minimal input example: {"tx_hash":"0x9ede68ce1d33fd5d49d402d11de3127710102235ac5bdf020344345dfeb8ce4f"}. Illustrative output excerpt: {"result":{"kind":"payment_receipt","receipt":{"amount":"0.050000","time":"2026-10-22T22:07:07.000Z"}},"jws":"illustrative-not-a-live-signature"}. Illustrative output excerpt, not a live result, signature, approval or guarantee. Freshness/data/availability checks still apply. How to pay (MCP): No shared free trial for this tool. Use an x402-capable MCP client. A generic MCP connector without payment support cannot complete a paid continuation. On payment required, STOP. Inspect the exact accepts amount, asset, network and payTo; obtain explicit wallet/budget approval before continuing. Only after approval, let the configured x402 MCP client attach its signed payload in _meta["x402/payment"] and retry the same tools/call arguments. Never send a separate USDC transfer or paste keys into tool arguments. Never silently fall back from free access to payment. If a signed attempt has an unknown outcome, inspect that authorization/transaction; do not create another automatically.

Use when you are about to sign an x402 payment for allow, hold or block, reasons and a signed decision receipt. Covers payee sanctions screening, spending rules and cached price/recipient evidence where available. For separate evidence, use lint_endpoint/listing_guard for technical seller-metadata checks, verify_payee_binding for ERC-8478 registry-to-wallet binding, and payment_receipt for a native Base USDC transfer observation after payment. These tools have separate scopes and may have separate charges; Preflight does not execute them automatically or verify delivered API content. A transfer receipt is not delivery proof, wallet binding is not seller-safety proof, and an allow decision does not grant payment authority. 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 wallet, name, or domain screening without a payment, use check_payee instead. Each repeat call creates a new receipt and may consume another trial or paid call. Price $0.02 per call (free trial first). Price: 0.02 USDC. Minimal input example: {"cart":{"merchant_name":"Example Shop LLC","total_usd":0.01},"rules":{"max_per_payment_usd":1},"spent_today_usd":0}. Illustrative output excerpt: {"decision":"hold","reasons":["hold: missing fresh index evidence"],"chosen_option":null,"options_evaluated":0,"payee":null,"index_evidence":{"status":"unknown","observed_at":null,"note":"Missing evidence remains unknown."},"receipt":{"id":"illustration","ts":"2026-10-30T00:00:00Z","input_sha256":"0000000000000000000000000000000000000000000000000000000000000000","decision":"hold","jws":"illustrative-not-a-live-signature"}}. Illustrative output excerpt, not a live result, signature, approval or guarantee. Freshness/data/availability checks still apply. How to pay (MCP): First use the existing shared allowance of 3 eligible calls per IP per UTC day, without payment metadata. This is shared with eligible HTTP trials, not a new allowance. Use an x402-capable MCP client. A generic MCP connector without payment support cannot complete a paid continuation. On payment required, STOP. Inspect the exact accepts amount, asset, network and payTo; obtain explicit wallet/budget approval before continuing. Only after approval, let the configured x402 MCP client attach its signed payload in _meta["x402/payment"] and retry the same tools/call arguments. Never send a separate USDC transfer or paste keys into tool arguments. Never silently fall back from free access to payment. If a signed attempt has an unknown outcome, inspect that authorization/transaction; do not create another automatically.

Use when you need an exact quote compared with cached public price and recipient evidence. Compare a supplied x402 quote with the latest comparable cached public unpaid quote and disclosed retained history. Scout keeps only the latest probe; the separate public index can retain seven days. $0.001 USDC on Base for a usable comparison, no trial. Missing/stale/ambiguous evidence returns unknown without charge. Never fetches or pays the target. Informational historical comparison, not payment approval or loss prevention. Price: 0.001 USDC. Minimal input example: {"url":"https://api.example.com/data","amount":"10000","payTo":"0x1111111111111111111111111111111111111111","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","network":"eip155:8453"}. Illustrative output excerpt: {"status":"unknown","baseline":null,"multiple":null,"suggested_max_amount_per_payment":null,"not_charged":true}. Illustrative output excerpt, not a live result, signature, approval or guarantee. Freshness/data/availability checks still apply. How to pay (MCP): Unknown evidence returns without charge; a usable comparison requires payment. No shared trial. Use an x402-capable MCP client. A generic MCP connector without payment support cannot complete a paid continuation. On payment required, STOP. Inspect the exact accepts amount, asset, network and payTo; obtain explicit wallet/budget approval before continuing. Only after approval, let the configured x402 MCP client attach its signed payload in _meta["x402/payment"] and retry the same tools/call arguments. Never send a separate USDC transfer or paste keys into tool arguments. Never silently fall back from free access to payment. If a signed attempt has an unknown outcome, inspect that authorization/transaction; do not create another automatically.

Use when you need the full passive evidence from a current complete saved Lint report. x402 Security Check (Lint Pro). Detailed passive findings and source-linked fixes from an existing, unexpired free Lint report. $0.10 USDC on Base, no trial or automatic payment. No new target request. Resource binding is advertised only; paid-response caching, replay/idempotency, header parser behavior and settlement-before-delivery remain unknown. Not an audit or safety guarantee. Price: 0.10 USDC. Minimal input example: {"report_id":"00000000-0000-4000-8000-000000000000"}. Illustrative output excerpt: {"mode":"passive_unpaid","assessment_complete":false,"unknown_count":5,"methodology":{"target_requests_added":0,"payment_tests":0}}. Illustrative output excerpt, not a live result, signature, approval or guarantee. Freshness/data/availability checks still apply. How to pay (MCP): Inspect the free Lint security summary first; a current complete report_id is required for the paid detail. No automatic refresh or shared trial. Use an x402-capable MCP client. A generic MCP connector without payment support cannot complete a paid continuation. On payment required, STOP. Inspect the exact accepts amount, asset, network and payTo; obtain explicit wallet/budget approval before continuing. Only after approval, let the configured x402 MCP client attach its signed payload in _meta["x402/payment"] and retry the same tools/call arguments. Never send a separate USDC transfer or paste keys into tool arguments. Never silently fall back from free access to payment. If a signed attempt has an unknown outcome, inspect that authorization/transaction; do not create another automatically.

Use when you need sellers from the existing cached public catalog. Search cached public x402 sellers. First three matches free; up to12 cost0.01 USDC only with extra matches. Bounded unpaid availability, 402, quote history and public Lint evidence; missing evidence unknown. Partial Base USDC wash-activity heuristic: low/elevated/unknown, coverage and reasons. Elevated subtracts10 ordering points without excluding sellers. No target request, safety or paid-delivery guarantee. Price: 0.01 USDC. Minimal input example: {"capability":"weather forecast","limit":3}. Illustrative output excerpt: {"results":[],"free_top":3,"paid_available":false,"not_charged":true}. Illustrative output excerpt, not a live result, signature, approval or guarantee. Freshness/data/availability checks still apply. How to pay (MCP): Top three cached matches are free; extended results cost the quoted fee only when extra matches exist. No shared trial. Use an x402-capable MCP client. A generic MCP connector without payment support cannot complete a paid continuation. On payment required, STOP. Inspect the exact accepts amount, asset, network and payTo; obtain explicit wallet/budget approval before continuing. Only after approval, let the configured x402 MCP client attach its signed payload in _meta["x402/payment"] and retry the same tools/call arguments. Never send a separate USDC transfer or paste keys into tool arguments. Never silently fall back from free access to payment. If a signed attempt has an unknown outcome, inspect that authorization/transaction; do not create another automatically.

Use when you need solar energy arithmetic from supplied assumptions; see Data APIs. 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. Price: 0.02 USDC. Minimal input example: {"loads":[{"watts":100,"hours_per_day":5,"quantity":1,"kind":"dc"}],"peak_sun_hours":4,"pv_loss_fraction":0.2,"panel_watts":200,"battery":{"voltage":12,"usable_fraction":0.8,"autonomy_days":2}}. Illustrative output excerpt: {"daily_energy_wh":{"battery_side":400},"pv":{"minimum_nameplate_watts":125,"rounded_up_watts":125},"assumptions":{"energy_balance_only":true,"weather_or_location_lookup":false}}. Illustrative output excerpt, not a live result, signature, approval or guarantee. Freshness/data/availability checks still apply. How to pay (MCP): First use the existing shared allowance of 3 eligible calls per IP per UTC day, without payment metadata. This is shared with eligible HTTP trials, not a new allowance. Use an x402-capable MCP client. A generic MCP connector without payment support cannot complete a paid continuation. On payment required, STOP. Inspect the exact accepts amount, asset, network and payTo; obtain explicit wallet/budget approval before continuing. Only after approval, let the configured x402 MCP client attach its signed payload in _meta["x402/payment"] and retry the same tools/call arguments. Never send a separate USDC transfer or paste keys into tool arguments. Never silently fall back from free access to payment. If a signed attempt has an unknown outcome, inspect that authorization/transaction; do not create another automatically.

Use when a seller advertises an ERC-8004 identity and you need an ERC-8478 Draft wallet-binding observation. ERC-8478 Draft payee verification: endpoint origin and ERC-8004 agent wallet or EIP-712 delegation at one pinned registry block. Nine explicit outcomes; not-read is uncharged. Signed JSON observation, not payment approval or a safety guarantee. Shared trial may apply. Price: 0.01 USDC. Minimal input example: {"requirement":{"scheme":"exact","network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"10000","payTo":"0xBf4164e07552e4c1b1B1597E72C7acAA3F0a1c58"},"resource_url":"https://api.spendpreflight.com/v1/check"}. Illustrative output excerpt: {"result":{"kind":"payee_binding","outcome":"no-identity","block_number":null,"block_timestamp":null},"jws":"illustrative-not-a-live-signature"}. Illustrative output excerpt, not a live result, signature, approval or guarantee. Freshness/data/availability checks still apply. How to pay (MCP): First use the existing shared allowance of 3 eligible calls per IP per UTC day, without payment metadata. This is shared with eligible HTTP trials, not a new allowance. Use an x402-capable MCP client. A generic MCP connector without payment support cannot complete a paid continuation. On payment required, STOP. Inspect the exact accepts amount, asset, network and payTo; obtain explicit wallet/budget approval before continuing. Only after approval, let the configured x402 MCP client attach its signed payload in _meta["x402/payment"] and retry the same tools/call arguments. Never send a separate USDC transfer or paste keys into tool arguments. Never silently fall back from free access to payment. If a signed attempt has an unknown outcome, inspect that authorization/transaction; do not create another automatically.

Use when you need a reconciled Base USDC statement for a bounded UTC window. Export native Base USDC wallet transfers as JSON or CSV for a past range up to 90 days, start inclusive/end exclusive. Exact decimal running balances, counterparties and OFAC flags. Up to 1000 transfers/128 RPC calls/25 seconds; oversized or unavailable historical data fails without charge. Informational, not tax advice. Price $0.05 USDC on Base. No free trial. Price: 0.05 USDC. Minimal input example: {"address":"0xBf4164e07552e4c1b1B1597E72C7acAA3F0a1c58","start":"2026-10-22T22:07:00Z","end":"2026-10-22T22:08:00Z","format":"json"}. Illustrative output excerpt: {"kind":"wallet_statement","opening_balance":"4.188374","closing_balance":"4.238374","complete":true,"rows":[{"direction":"in","amount":"0.050000","running_balance":"4.238374"}]}. Illustrative output excerpt, not a live result, signature, approval or guarantee. Freshness/data/availability checks still apply. How to pay (MCP): No shared free trial for this tool. Use an x402-capable MCP client. A generic MCP connector without payment support cannot complete a paid continuation. On payment required, STOP. Inspect the exact accepts amount, asset, network and payTo; obtain explicit wallet/budget approval before continuing. Only after approval, let the configured x402 MCP client attach its signed payload in _meta["x402/payment"] and retry the same tools/call arguments. Never send a separate USDC transfer or paste keys into tool arguments. Never silently fall back from free access to payment. If a signed attempt has an unknown outcome, inspect that authorization/transaction; do not create another automatically.