x402-checks
mcp remote · streamable-http · v1.3.0 · source: crawl
https://api.code402.dev/mcp
https://github.com/89rat/m2m-exchange
Machine-payable deterministic identifier checks + signed XDR-1 receipts for agents.
Works
100
Verified Oct 31, 2026 · p50 516 ms · p95 553 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'code402' |
| tools_listed | 15 | pass | 57 tools |
| schema_complete | 15 | pass | 57 of 57 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 516 ms |
| latency_p95 | 5 | pass | p95 553 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (57)
| Name | Description | Schema |
|---|---|---|
vat_mod97_check | Check the supported Belgian VAT format and MOD-97 checksum. BE only; not VIES, other EU VAT formats, registration status or tax compliance. | typed |
swift_bic_check | Check SWIFT/BIC structure and country code. Does not establish bank existence, active routing or beneficiary identity. | typed |
e164_check | Validate a phone number's E.164 structure (+CC, 8-15 digits, no leading zero) before dispatching SMS alerts or OTPs. Returns signed XDR-1 receipt. | typed |
sedol_check | Validate a UK/Ireland security identifier by its (1,3,1,7,3,9)-weight mod-10 checksum. Returns signed XDR-1 receipt. | typed |
isin_check | Validate an ISIN (ISO 6166) by structure and Luhn mod-10 check digit over the A=10…Z=35 converted string. | typed |
crypto_ticker | Spot USD price for a crypto ticker or CoinGecko id from public price feeds, cached 60 s. Result carries a signed receipt. | typed |
erc20_balance | Raw and formatted ERC-20 balanceOf for an address on Base, with decimals read from the token. Result carries a signed receipt. | typed |
fx_spot_price_oracle | Reference fiat and stablecoin conversion rate from a static table, not a live feed. Returns rate and inverse; result carries a signed receipt. | typed |
block_info | Base chain (8453) block header data: block number, timestamp, transaction count and base fee for any block. Result carries a signed receipt. | typed |
tx_activity | Outbound transaction count (nonce) and contract-or-EOA check for an address on Base. Result carries a signed receipt. | typed |
token_contract_risk | Deterministic Base contract facts: ERC-20 metadata, proxy slots, owner(), privileged-function selectors and flags. Not a safety verdict. Result carries a signed receipt. | typed |
clean_markdown_scraper | Fetch a public web page by URL (or take your HTML) and return Markdown plus headings. No JavaScript rendering. Result carries a signed receipt. | typed |
context_distill | Deterministic 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. | typed |
instant_json_schema_verifier | Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines. | typed |
balance_check | Native ETH and one ERC-20 balance (default USDC) for an address on Base, raw and formatted. Result carries a signed receipt. | typed |
calculate_fx_savings | Arithmetic 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 measuremen | typed |
iban_check | Validate IBAN structure and MOD-97 checksum. Does not establish account ownership, beneficiary identity or absence of fraud. | typed |
lei_check | Validate a 20-character LEI and MOD-97 check digits. No registry lookup, active-registration check or legal-entity identity verification. | typed |
ean13_check | Validate an EAN-13 barcode by its mod-10 checksum (odd positions x1, even positions x3). | typed |
batch_validate | Validate 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 res | typed |
vendor_onboarding_pack | Check supplied IBAN, LEI, Belgian VAT and UK company-number fields in one result. Structural checks only; no ownership, registry or fraud clearance. | typed |
india_supplier_check | One 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 | typed |
pre_disbursement_guard | Check 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 r | typed |
gstin_check | Validate an Indian GSTIN by structure (2-digit state code + PAN + entity code + 'Z') and its mod-36 cross-sum checksum. | typed |
ifsc_check | Check the 11-character Indian IFSC format, including its fifth-character zero. No bank-branch registry lookup or account verification. | typed |
sanctions_address_screen | Screen 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_sanctione | typed |
company_number_format | Check supported UK company-number syntax. No Companies House lookup, entity-existence check or active-registration verification. | typed |
aba_routing_check | Validate 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 rec | typed |
ein_format_check | Validate US Employer Identification Number FORMAT (NN-NNNNNNN). Use during US business counterparty KYB verification. Returns signed XDR-1 receipt. | typed |
abn_check | Validate an Australian Business Number by its mod-89 checksum (11 digits). Required before invoice payment to Australian contractors. Returns signed XDR-1 receipt. | typed |
cnpj_check | Validate 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. | typed |
uscc_check | Validate 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 re | typed |
japan_corp_check | Validate 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. | typed |
kra_pin_check | Validate 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 rec | typed |
rfc_check | Validate 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. | typed |
iso4217_currency_check | Validate 3-letter alpha or 3-digit numeric currency codes against ISO 4217 standard. Returns minor unit decimals, symbol, official name, countries, and onchain Base L2 settlement token mapping (USDC/E | typed |
upi_vpa_check | Deterministic 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 an | typed |
pan_format_check | Deterministic validation of Indian Permanent Account Number (PAN) issued by CBDT / Income Tax Department with 4th-character entity type classification (Individual, Company, Firm, Trust, HUF). | typed |
uae_trn_check | Deterministic validation of UAE 15-digit Tax Registration Number (TRN) issued by the Federal Tax Authority (FTA) for VAT purposes. | typed |
china_supplier_check | One call, one receipt: USCC + settlement IBAN + SWIFT/BIC for a Chinese counterparty. Deterministic structure and checksum validation with explicit scope per identifier. | typed |
japan_supplier_check | One call, one receipt: 13-digit Corporate Number + settlement IBAN for a Japanese counterparty. Deterministic check digits, explicit scope. | typed |
latam_supplier_check | One call, one receipt: Brazilian CNPJ + Mexican RFC + settlement IBAN. Deterministic checks for the two largest LatAm corridors in one paid call. | typed |
gulf_supplier_check | One call, one receipt: UAE TRN + settlement IBAN + SWIFT/BIC. Deterministic structure validation for Gulf trade corridors, scope stated per identifier. | typed |
africa_supplier_check | One call, one receipt: Kenya KRA PIN + settlement IBAN + SWIFT/BIC. Deterministic structural checks for East African trade corridors. | typed |
rent_deposit_guard | Check deposit IBAN checksum and supplied country/viewing indicators. Rule-based risk signals only; no ownership verification, escrow protection or guarantee against theft. | typed |
rental_listing_risk | Explainable tenancy fraud risk score evaluated across irreversible payment demands, off-platform pressure, stolen photos, and advance wire signals. Deterministic rule engine. | typed |
rental_verdict | Combine deposit identifier checks with supplied country, viewing and listing indicators. Does not verify landlord identity, property ownership or safety of payment. | typed |
reconcile | Deterministic 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_MI | typed |
create_b2b_invoice | Create 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, indep | typed |
get_b2b_invoice | Read 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 pay | typed |
simulate_spend_sentinel | Run synthetic prompt-injection halts, malformed-delivery rejection, and bounded-spend eligibility examples under AP2 envelopes. No live escrow, refund, facilitator or chain action occurs. | typed |
aci_trust_lookup | Deterministic agent trust scoring and non-custodial unsettled exposure advisory evaluation (ACI-1). Quantifies counterparty grade (T0-T3), historical success rate, and maximum suggested settlement exp | typed |
csp_commitment_create | Generates cryptographic commitments to commercial terms and formats ERC-5564 dual-key stealth address announcements (CSP-1) for invoice-scale B2B payments on Base L2. | typed |
iso20022_validate | Deterministic 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 Ct | typed |
iso20022_to_x402_intent | Translates 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 | typed |
check_price | Instant 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 | typed |
receipt_verify | Verifies 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 | typed |
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