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Hcrb

LIVE ON-CHAINBase

ON-CHAIN COUNTERPARTY PROOF: Audit USDC transfers sent and received by any EVM address over the last ~48h of Base blocks. Preflighted so you never pay during an RPC outage.

hcrb.in
Website
92
Trust
100%
Uptime
274 ms
Latency
$9.59*
Volume (30d)

Overview

Protocolx402
Provider—
Payment assetUSD Coin
Networkbase
Categoryonchain-data
Sourcebazaar

Health

StatusOperational
Uptime (window)100%
Success rate—
Confidence100%
Quotes (14d)17
Last checked10/17/2026, 6:10:10 PM
Latency (quote)73ms
Price / call10000
Uptime (daily)100%

Metrics by window

WindowTrustUptimeSuccessp50p95PriceData
Last hour92100%———$0.0075Low
Last 24h92100%———$0.0075Low
Last 7 days87100%———$0.015Low

Endpoints (26)

Schema API (all endpoints) ↗

Trust score is global for the provider. Latency, price and uptime are measured per endpoint (last 24h). Click a column to sort.

Endpoint
POST/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 on batch size.
——$0.05
POST/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 cross-border procurement where the buyer is an agent that cannot open an INR account.
——$0.02
POST/v1/tools/settlement-history-check/call
ON-CHAIN COUNTERPARTY PROOF: Audit USDC transfers sent and received by any EVM address over the last ~48h of Base blocks. Preflighted so you never pay during an RPC outage.
——$0.02
POST/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 receipt.
——$0.02
POST/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
POST/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
POST/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.
—73 ms$0.01
POST/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
POST/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
POST/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.
—311 ms$0.005
POST/v1/tools/iban_check/call
code402 iban-check
—511 ms$0.005
POST/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 comparators are assumptions, not measurements of any bank or provider; no protocol fee is deducted on this rail.
——$0.005
POST/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 — no external calls, no ML.
——$0.005
POST/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
POST/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
POST/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
POST/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
POST/v1/tools/instant-json-schema-verifier/call
Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines.
——$0.005
POST/v1/tools/isbn-check/call
Validate an ISBN-10 (mod-11) or ISBN-13 (1,3-weight mod-10) checksum.
——$0.005
POST/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
POST/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
POST/v1/tools/pre-disbursement-guard/call
Evaluate supplied identifiers, domain-age evidence and mismatch signals. Requires a preceding receipt hash. An advisory result is not verified identity, fraud clearance or authorization to release funds.
——$0.005
POST/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. 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.
——$0.005
POST/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
POST/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
POST/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

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