hcrb.in
hcrb.in · 46 paid endpoints · listed 2026-10-27
Native ETH and one ERC-20 balance (default USDC) for an address on Base, raw and formatted. Result carries a signed receipt.
livelast check 5 days ago
100%valid x402 answers, 72 h
$0.32USDC received on Base, 7 days
12distinct payers, 7 days
58.3score (0-100)
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| POST | hcrb.in/v1/modules/commerce/accelerate-payout Computes stateless 2/10 Net 30 early-payment discount split (165 bps to buyer, 35 bps to HCRB treasury). | $0.005 | Polygon, Base |
| POST | hcrb.in/v1/tools/aci-trust-lookup/call Deterministic agent trust scoring and non-custodial unsettled exposure advisory evaluation (ACI-1). Quantifies counterparty grade (T0-T3), historical success ra | $0.005 | Polygon, Avalanche, Base |
| POST | hcrb.in/v1/tools/balance-check/call Native ETH and one ERC-20 balance (default USDC) for an address on Base, raw and formatted. Result carries a signed receipt. | $0.005 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/v1/tools/calculate-fx-savings/call Arithmetic comparison of a USDC settlement against comparator percentages YOU supply (bank_fee_pct, custodial_fee_pct) across 14 global fiat currencies. The com | $0.005 | Polygon, Arbitrum, Avalanche, Base |
| POST | hcrb.in/v1/tools/context-distill/call Deterministic text digest: word count, top-5 most frequent meaningful words (stop words excluded), first sentence, and a keccak-256 content hash. Pure function | $0.005 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/v1/tools/create-b2b-invoice/call Create a merchant-direct Base token invoice. New automated payments require a durable EOA authorization journal and a configured provider. No active protocol fe | $0.005 | Polygon, Arbitrum, Avalanche, Base |
| POST | hcrb.in/v1/tools/ean13-check/call Validate an EAN-13 barcode by its mod-10 checksum (odd positions x1, even positions x3). | $0.005 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/v1/tools/ein-format-check/call Validate US Employer Identification Number FORMAT (NN-NNNNNNN). Use during US business counterparty KYB verification. Returns signed XDR-1 receipt. | $0.005 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/v1/tools/erc20-balance/call Raw and formatted ERC-20 balanceOf for an address on Base, with decimals read from the token. Result carries a signed receipt. | $0.005 | Base |
| POST | hcrb.in/v1/tools/gstin-check/call Validate an Indian GSTIN by structure (2-digit state code + PAN + entity code + 'Z') and its mod-36 cross-sum checksum. | $0.005 | Base |
| POST | hcrb.in/v1/tools/iban-check/call Validate IBAN structure and MOD-97 checksum. Does not establish account ownership, beneficiary identity or absence of fraud. | $0.005 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/v1/tools/iban_check/call code402 iban-check | $0.005 | Base |
| POST | hcrb.in/v1/tools/ifsc-check/call Check the 11-character Indian IFSC format, including its fifth-character zero. No bank-branch registry lookup or account verification. | $0.005 | Base |
| POST | hcrb.in/v1/tools/instant-json-schema-verifier/call Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines. | $0.005 | Base |
| POST | hcrb.in/v1/tools/isbn-check/call Validate an ISBN-10 (mod-11) or ISBN-13 (1,3-weight mod-10) checksum. | $0.005 | Base |
| POST | hcrb.in/v1/tools/isin-check/call Validate an ISIN (ISO 6166) by structure and Luhn mod-10 check digit over the A=10…Z=35 converted string. | $0.005 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/v1/tools/lei-check/call Validate a 20-character LEI and MOD-97 check digits. No registry lookup, active-registration check or legal-entity identity verification. | $0.005 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/v1/tools/luhn-check/call Validate any 12-19 digit number by the Luhn mod-10 algorithm. Never submit real payment card numbers. Returns signed XDR-1 receipt. | $0.005 | Base |
| POST | hcrb.in/v1/tools/pre-disbursement-guard/call Check supplier tax and bank identifiers (IBAN, LEI, EU VAT, UK company number), domain-age evidence and country mismatch signals before vendor payment. Requires | $0.005 | Polygon, Avalanche, Base |
| POST | hcrb.in/v1/tools/rfc-check/call Validate Mexican SAT RFC corporate (12-char) or individual (13-char) tax code and homoclave. Required for Mexican contractor invoicing and SPEI cross-border set | $0.005 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/v1/tools/sanctions-address-screen/call Exact EVM-address comparison against the identified address snapshot and existing operator block policy. Current legal status is unknown; is_sanctioned is null. | $0.005 | Polygon, Base |
| POST | hcrb.in/v1/tools/sedol-check/call Validate a UK/Ireland security identifier by its (1,3,1,7,3,9)-weight mod-10 checksum. Returns signed XDR-1 receipt. | $0.005 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/v1/tools/swift-bic-check/call Check SWIFT/BIC structure and country code. Does not establish bank existence, active routing or beneficiary identity. | $0.005 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/v1/tools/tx-activity/call Outbound transaction count (nonce) and contract-or-EOA check for an address on Base. Result carries a signed receipt. | $0.005 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/v1/tools/uscc-check/call 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 Chines | $0.005 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/v1/tools/vat-mod97-check/call Check the supported Belgian VAT format and MOD-97 checksum. BE only; not VIES, other EU VAT formats, registration status or tax compliance. | $0.005 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/fx/best-execution-quote 4-Way Base & Polygon Stablecoin FX Meta-Aggregator Race (KyberSwap, ParaSwap, OpenOcean, Relay) + Pyth Real-Time & 30-Currency ECB MiCA Best-Execution Proof | $0.01 | Polygon, Base |
| POST | hcrb.in/multimodal/verify-artifact Zero-Retention Multimodal Invoice/XML/UBL Attestor across 12 Global Registries & 30 ECB Currencies (Notional-Tiered x402 Pricing) | $0.01 | Polygon, Base |
| POST | hcrb.in/v1/modules/compliance/einvoice-transform Transforms JSON invoice payloads in-RAM into schema-valid Peppol BIS Billing 3.0 UBL 2.1 XML. | $0.01 | Polygon, Base |
| POST | hcrb.in/v1/modules/dip1/adjudicate-dispute Stateless DIP-1 dispute oracle comparing carrier delivery SHA-256 proofs with 25 bps fee instruction. | $0.01 | Polygon, Base |
| POST | hcrb.in/v1/modules/oracle/vendor-risk-score Structural IBAN (MOD-97) and LEI-format checks plus a network-wide settle count. Not an identity, credit or fraud assessment; no per-counterparty history is hel | $0.01 | Polygon, Base |
| POST | hcrb.in/v1/modules/quota/mint-x402 Mints a fast-path Bearer ck_live_x402_... quota key (<15ms KV/DO verification) via single x402 signature (tiers: micro=$0.01/3 calls, burst=$0.10/25 calls, pass | $0.01 | Polygon, Base |
| POST | hcrb.in/v1/tools/block-info/call Base block header: number, timestamp, transaction count and base fee for the latest or a given block. Result carries a signed receipt. | $0.01 | Base |
| POST | hcrb.in/v1/tools/crypto-ticker/call Spot USD price for a crypto ticker or CoinGecko id from public price feeds, cached 60 s. Result carries a signed receipt. | $0.01 | Base |
| POST | hcrb.in/v1/tools/fx-spot-price-oracle/call Reference fiat and stablecoin conversion rate from a static table, not a live feed. Returns rate and inverse; result carries a signed receipt. | $0.01 | Base |
| POST | hcrb.in/v1/tools/clean-markdown-scraper/call Fetch a public web page by URL (or take your HTML) and return Markdown plus headings. No JavaScript rendering. Result carries a signed receipt. | $0.015 | Polygon, Base |
| POST | hcrb.in/v1/tools/csp-commitment-create/call Generates cryptographic commitments to commercial terms and formats ERC-5564 dual-key stealth address announcements (CSP-1) for invoice-scale B2B payments on Ba | $0.015 | Polygon, Arbitrum, Avalanche, Base |
| POST | hcrb.in/v1/tools/gulf-supplier-check/call One call, one receipt: UAE TRN + settlement IBAN + SWIFT/BIC. Deterministic structure validation for Gulf trade corridors, scope stated per identifier. | $0.02 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/v1/tools/india-supplier-check/call One call, one receipt: GSTIN + PAN + UPI VPA + IFSC for an Indian counterparty. Four deterministic structural checks, each stating its own scope. Built for cros | $0.02 | Polygon, Base |
| POST | hcrb.in/v1/tools/latam-supplier-check/call One call, one receipt: Brazilian CNPJ + Mexican RFC + settlement IBAN. Deterministic checks for the two largest LatAm corridors in one paid call. | $0.02 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/v1/tools/rent-deposit-guard/call Check deposit IBAN checksum and supplied country/viewing indicators. Rule-based risk signals only; no ownership verification, escrow protection or guarantee aga | $0.02 | Polygon, Arbitrum, Avalanche, Base, Solana |
| POST | hcrb.in/v1/tools/rental-listing-risk/call Explainable tenancy fraud risk score evaluated across irreversible payment demands, off-platform pressure, stolen photos, and advance wire signals. Deterministi | $0.02 | Polygon, Arbitrum, Avalanche, Base |
| POST | hcrb.in/v1/tools/settlement-history-check/call ON-CHAIN COUNTERPARTY PROOF: Review USDC transfers sent and received by any EVM address over the last ~48h of Base blocks. Preflighted so you never pay during a | $0.02 | Base |
| POST | hcrb.in/v1/tools/token-contract-risk/call Deterministic Base contract facts: ERC-20 metadata, proxy slots, owner(), privileged-function selectors and flags. Not a safety verdict. Result carries a signed | $0.02 | Base |
| POST | hcrb.in/v1/tools/vendor-onboarding-pack/call Check supplied IBAN, LEI, Belgian VAT and UK company-number fields in one result. Structural checks only; no ownership, registry or fraud clearance. | $0.02 | Base |
| POST | hcrb.in/v1/tools/batch-validate/call Run up to 50 supported {tool, value} checks in one request. Each result states its scope. Compare the current batch quote with individual quotes; savings depend | $0.05 | Base |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 5 days ago | hcrb.in/fx/best-execution-quote | 402 | 1273 | valid x402 v2 terms |
Income on Base (7 days)
| Day | Transfers | USDC | |
|---|---|---|---|
| 2026-11-01 | 13 | $0.08 | |
| 2026-10-29 | 9 | $0.055 | |
| 2026-10-28 | 2 | $0.01 | |
| 2026-10-27 | 11 | $0.115 | |
| 2026-10-26 | 4 | $0.02 | |
| 2026-10-25 | 8 | $0.04 |
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x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/hcrb.in