Skip to main content

x402-checks

io.github.89rat/x402-checksVersion 1.3.0

Machine-payable deterministic identifier checks + signed XDR-1 receipts for agents.

Status

Responds310 msAnswered our handshake without sign-in.

Registry data may be out of date

We could not refresh it, so this page shows the last copy.
Last checked
Nov 14, 2026, 14:34 UTC
Latency
310 ms
Remotes responding
1 of 1
Sign-in
No sign-in
Hosting
Hosted outside the EU (detected)
Registry data as of
Nov 14, 2026, 21:12 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP
https://api.code402.dev/mcpResponds310 ms
No sign-in

Claude Code

claude mcp add --transport http x402-checks https://api.code402.dev/mcp

Claude Desktop and claude.ai

Settings > Connectors > Add custom connector
Name: x402-checks
Remote MCP server URL: https://api.code402.dev/mcp

Cursor

{
  "mcpServers": {
    "x402-checks": {
      "url": "https://api.code402.dev/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"x402-checks","type":"http","url":"https://api.code402.dev/mcp"}'

Built your own server? run.zero hosts MCP servers on European infrastructure.

Host your own MCP server on run.zero

Tools

58 tools

Tools of x402-checks
Read-only
Idempotent
Open world
aba_routing_checkValidate a US ABA routing number by its (3,7,1)-weight mod-10 Fedwire/ACH checksum. Catches mistyped or invalid routing numbers before payment; does NOT prevent transfer reversals or establish the recipient. Returns signed XDR-1 receipt.Not declaredYesYesYes
abn_checkValidate an Australian Business Number by its mod-89 checksum (11 digits). Required before invoice payment to Australian contractors. Returns signed XDR-1 receipt.Not declaredYesYesYes
aci_trust_lookupDeterministic agent trust scoring and non-custodial unsettled exposure advisory evaluation (ACI-1). Quantifies counterparty grade (T0-T3), historical success rate, and maximum suggested settlement exposure without uncollateralized lending or float.Not declaredYesYesYes
africa_supplier_checkOne call, one receipt: Kenya KRA PIN + settlement IBAN + SWIFT/BIC. Deterministic structural checks for East African trade corridors.Not declaredYesYesYes
balance_checkNative ETH and one ERC-20 balance (default USDC) for an address on Base, raw and formatted. Result carries a signed receipt.Not declaredYesYesYes
batch_validateValidate up to 50 tax, bank and legal-entity identifiers (IBAN, LEI, VAT, SWIFT/BIC, ABA routing, EIN, IFSC, ABN, GSTIN, ISIN, SEDOL, EAN-13, ISBN, E.164 or Luhn checks) in one batch request. Each result states its scope. Compare the current batch quote with individual quotes; savings depend on batch size.Not declaredYesYesYes
block_infoBase chain (8453) block header data: block number, timestamp, transaction count and base fee for any block. Result carries a signed receipt.Not declaredYesYesYes
calculate_fx_savingsArithmetic comparison of a USDC settlement against comparator percentages YOU supply (bank_fee_pct, custodial_fee_pct) across 14 global fiat currencies. The comparators are assumptions, not measurements of any bank or provider; no protocol fee is deducted on this rail.Not declaredYesYesYes
check_priceInstant zero-cost pricing hook for code402 tools. Returns the live price, an opaque quote_id, TTL, and the settlement URL. Free forever — feeds the price index into an agent planner's context without creating any financial obligation. If the planner acts on the quote, it hits the settlement_url with an EIP-3009 signed voucher.Not declaredYesYesYes
china_supplier_checkOne call, one receipt: USCC + settlement IBAN + SWIFT/BIC for a Chinese counterparty. Deterministic structure and checksum validation with explicit scope per identifier.Not declaredYesYesYes
clean_markdown_scraperFetch a public web page by URL (or take your HTML) and return Markdown plus headings. No JavaScript rendering. Result carries a signed receipt.Not declaredYesYesYes
cnpj_checkValidate Brazilian corporate tax ID (CNPJ) with official dual mod-11 check digits. Required for Brazilian B2B payments, PIX verification, and vendor due diligence. Returns signed XDR-1 receipt.Not declaredYesYesYes
company_number_formatCheck supported UK company-number syntax. No Companies House lookup, entity-existence check or active-registration verification.Not declaredYesYesYes
context_distillDeterministic text digest: word count, top-5 most frequent meaningful words (stop words excluded), first sentence, and a keccak-256 content hash. Pure function — no external calls, no ML.Not declaredYesYesYes
counterparty_live_dossierUnified pre-wire proof combining IBAN/BIC syntax, live registry lookup, retained exact-match sanctions snapshot, legal-name token match, country consistency, and signed receipt.Not declaredYesYesYes
counterparty_passport_verifyFree bilateral verifier checking a counterparty's XDR-1 receipt signature, published signer, live-registry SKU tier, and timestamp age, returning a signed receipt.Not declaredYesYesYes
create_b2b_invoiceCreate a merchant-direct Base token invoice. New automated payments require a durable EOA authorization journal and a configured provider. No active protocol fee; no generic bank-wire authority, independent delivery or contract-wallet guarantee.Not declaredYesYesYes
crypto_tickerSpot USD price for a crypto ticker or CoinGecko id from public price feeds, cached 60 s. Result carries a signed receipt.Not declaredYesYesYes
csp_commitment_createGenerates cryptographic commitments to commercial terms and formats ERC-5564 dual-key stealth address announcements (CSP-1) for invoice-scale B2B payments on Base L2.Not declaredYesYesYes
ein_format_checkValidate US Employer Identification Number FORMAT (NN-NNNNNNN). Use during US business counterparty KYB verification. Returns signed XDR-1 receipt.Not declaredYesYesYes
erc20_balanceRaw and formatted ERC-20 balanceOf for an address on Base, with decimals read from the token. Result carries a signed receipt.Not declaredYesYesYes
fx_spot_price_oracleReference fiat and stablecoin conversion rate from a static table, not a live feed. Returns rate and inverse; result carries a signed receipt.Not declaredYesYesYes
get_b2b_invoiceRead public recorded invoice status and held-operation next action. Private records and credentials require a separate fresh read-only signature from the durably confirmed original payer; URLs and payment vouchers grant no read authority.Not declaredYesYesYes
gstin_checkValidate an Indian GSTIN by structure (2-digit state code + PAN + entity code + 'Z') and its mod-36 cross-sum checksum.Not declaredYesYesYes
gulf_supplier_checkOne call, one receipt: UAE TRN + settlement IBAN + SWIFT/BIC. Deterministic structure validation for Gulf trade corridors, scope stated per identifier.Not declaredYesYesYes
iban_checkValidate IBAN structure and MOD-97 checksum. Does not establish account ownership, beneficiary identity or absence of fraud.Not declaredYesYesYes
ifsc_checkCheck the 11-character Indian IFSC format, including its fifth-character zero. No bank-branch registry lookup or account verification.Not declaredYesYesYes
india_supplier_checkOne call, one receipt: GSTIN + PAN + UPI VPA + IFSC for an Indian counterparty. Four deterministic structural checks, each stating its own scope. Built for cross-border procurement where the buyer is an agent that cannot open an INR account.Not declaredYesYesYes
instant_json_schema_verifierValidate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines.Not declaredYesYesYes
iso20022_cbpr_cureResolves live statutory registries (GLEIF, UK Companies House, Norway Brreg) into schema-bounded ISO 20022 Structured/Hybrid <PstlAdr> and pain.001 XML with signed receipt.Not declaredYesYesYes
iso20022_to_x402_intentTranslates validated ISO 20022 payment instructions (pain.001 / pacs.008) into deterministic EIP-712 payment-intent templates for autonomous x402 Base L2 USDC settlement (BAP-1). Zero custody, no fiat leg.Not declaredYesYesYes
iso20022_validateDeterministic validation for institutional ISO 20022 XML/JSON payment messages (pain.001 credit transfer, pacs.008 customer credit, camt.053 bank statement) with XML DOCTYPE security guards, BigInt CtrlSum decimal sums, and ISO 13616 / 9362 / 17442 checksums (BAP-1).Not declaredYesYesYes
japan_corp_checkValidate 13-digit Japanese Corporate Number assigned by the National Tax Agency using Mod-9 check digit algorithm. Required for Japanese B2B SaaS and enterprise billing. Returns signed XDR-1 receipt.Not declaredYesYesYes
japan_supplier_checkOne call, one receipt: 13-digit Corporate Number + settlement IBAN for a Japanese counterparty. Deterministic check digits, explicit scope.Not declaredYesYesYes
kra_pin_checkValidate Kenyan Revenue Authority Tax PIN structure (A/P followed by 9 digits and checksum character). Required for M-Pesa B2B disbursement and Kenyan remote agency invoicing. Returns signed XDR-1 receipt.Not declaredYesYesYes
latam_supplier_checkOne call, one receipt: Brazilian CNPJ + Mexican RFC + settlement IBAN. Deterministic checks for the two largest LatAm corridors in one paid call.Not declaredYesYesYes
lei_checkValidate a 20-character LEI and MOD-97 check digits. No registry lookup, active-registration check or legal-entity identity verification.Not declaredYesYesYes
lei_live_lookupLive GLEIF v1 API lookup returning entity status, legal address, LOU registration, direct/ultimate parent relationships, SHA-256 payload digest, and signed receipt.Not declaredYesYesYes
pre_disbursement_guardCheck supplier tax and bank identifiers (IBAN, LEI, EU VAT, UK company number), domain-age evidence and country mismatch signals before vendor payment. Requires a preceding receipt hash. An advisory result is not verified identity, fraud clearance or authorization to release funds.Not declaredYesYesYes
receipt_verifyVerifies a signed XDR-1 receipt from ANY x402 service: recomputes the canonical digest and recovers the signer, then compares it to the declared signer. Free forever — no account, no quota, no storage (stateless). A valid receipt proves the signer signed that tool call at that timestamp; it does NOT prove funds moved or any business claim.Not declaredYesYesYes
reconcileDeterministic reconciliation verdicts: pain.001/pacs.008 instructions vs camt.053 statements or NACHA ACH files, matched by end-to-end id and BigInt-exact amounts. Verdicts: SETTLED, UNPAID, AMOUNT_MISMATCH, DUPLICATE_PAYMENT, plus unmatched statement entries. Facts computed from the documents only — never inferred, never guessed. Returns signed XDR-1 receipt.Not declaredYesYesYes
rent_deposit_guardCheck deposit IBAN checksum and supplied country/viewing indicators. Rule-based risk signals only; no ownership verification, escrow protection or guarantee against theft.Not declaredYesYesYes
rental_listing_riskExplainable tenancy fraud risk score evaluated across irreversible payment demands, off-platform pressure, stolen photos, and advance wire signals. Deterministic rule engine.Not declaredYesYesYes
rental_verdictCombine deposit identifier checks with supplied country, viewing and listing indicators. Does not verify landlord identity, property ownership or safety of payment.Not declaredYesYesYes
rfc_checkValidate Mexican SAT RFC corporate (12-char) or individual (13-char) tax code and homoclave. Required for Mexican contractor invoicing and SPEI cross-border settlements. Returns signed XDR-1 receipt.Not declaredYesYesYes
sanctions_address_screenScreen an EVM wallet address or ISO country code by exact comparison against the identified sanctions address snapshot and existing operator block policy. Current legal status is unknown; is_sanctioned is null. valid=false preserves a local block; valid=null never authorizes a transaction. Names are not screened. Missing, stale or incomplete evidence is explicit; no UN/EU coverage or sanctions clearance is provided.Not declaredYesYesYes
simulate_spend_sentinelRun synthetic prompt-injection halts, malformed-delivery rejection, and bounded-spend eligibility examples under AP2 envelopes. No live escrow, refund, facilitator or chain action occurs.Not declaredYesYesYes
swift_bic_checkCheck SWIFT/BIC structure and country code. Does not establish bank existence, active routing or beneficiary identity.Not declaredYesYesYes
syntax_preflightFree offline mathematical checksum and format preflight across IBAN, BIC, LEI, EU VAT, and UK CRN, with live registry upgrade pointers and a signed receipt.Not declaredYesYesYes
token_contract_riskDeterministic Base contract facts: ERC-20 metadata, proxy slots, owner(), privileged-function selectors and flags. Not a safety verdict. Result carries a signed receipt.Not declaredYesYesYes
tx_activityOutbound transaction count (nonce) and contract-or-EOA check for an address on Base. Result carries a signed receipt.Not declaredYesYesYes
uae_trn_checkDeterministic validation of UAE 15-digit Tax Registration Number (TRN) issued by the Federal Tax Authority (FTA) for VAT purposes.Not declaredYesYesYes
uk_company_live_lookupLive UK corporate lookup returning company status, registered office structured into ISO 20022 <PstlAdr> XML, PO Box check, SHA-256 payload digest, and signed receipt.Not declaredYesYesYes
upi_vpa_checkDeterministic structural validation of an Indian UPI Virtual Payment Address (VPA / handle): local-part syntax, handle against a LOCAL list of accredited PSP handles (okhdfcbank, okaxis, paytm, ybl and others), and length rules. It is NOT a live registry lookup: no request leaves this worker, and an unlisted handle is reported as unrecognised rather than nonexistent. This does not establish that the VPA is registered, reachable or owned by anyone.Not declaredYesYesYes
uscc_checkValidate 18-character Chinese business registration and tax code using GB 32100-2015 ISO 7064 Mod-31-3 checksum. Required for B2B supply chain trade with Chinese manufacturers. Returns signed XDR-1 receipt.Not declaredYesYesYes
vat_mod97_checkCheck the supported Belgian VAT format and MOD-97 checksum. BE only; not VIES, other EU VAT formats, registration status or tax compliance.Not declaredYesYesYes
vat_vies_live_lookupLive European Commission VIES lookup for EU intra-Community transactions returning active registration status, trader name/address, requestIdentifier, SHA-256 digest, and signed receipt.Not declaredYesYesYes
vendor_onboarding_packCheck supplied IBAN, LEI, Belgian VAT and UK company-number fields in one result. Structural checks only; no ownership, registry or fraud clearance.Not declaredYesYesYes

Details

Registry status
Active
Published
Oct 6, 2026
Updated
Oct 6, 2026
Categories (suggested)
Invoicing and accountingFinance and paymentsSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR
Not declared

Are you the operator? Claim this listing