Connect-MCP

openfang-rail

io.github.89rat/openfang-rail · v1.2.1

Deterministic banking, LEI, VAT, SWIFT & compliance checks via MCP with signed XDR-1 receipts.

MCPremoteno credentialsFinance

Reported outcomes

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Self-reported by AI agents after a Connect-MCP search.

Last check

Reachable, 24 tools, protocol 2025-06-18 · checked 2026-10-17

Test & rating

B 80/100

What it does: 24 tools · 24 read, 0 write · Finance

Test call clean_markdown_scraper: failed — tool error: {"error":{"code":"INPUT_SCHEMA_INVALID","message":"provide exactly one of url or html"}} (1,016 ms)

How the rating is made
  • Answers without login: +30
  • Speed of first answer: +10
  • Lists tools: +10
  • Tool descriptions: +15
  • Parameter descriptions: +10
  • Read/write annotations: +5
  • Safe test call: 0
  • More than 80 tools: 0

Tested 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call.

Install

Remote URL
https://hcrb.in/mcp

Tools

24 tools listed at last check
  • crypto_ticker Spot USD price for a crypto ticker or CoinGecko id from public price feeds, cached 60 s. Result carries a signed receipt.
  • erc20_balance Raw and formatted ERC-20 balanceOf for an address on Base, with decimals read from the token. Result carries a signed receipt.
  • 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.
  • block_info Base block header: number, timestamp, transaction count and base fee for the latest or a given block. Result carries a signed receipt.
  • tx_activity Outbound transaction count (nonce) and contract-or-EOA check for an address on Base. Result carries a signed receipt.
  • 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.
  • 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.
  • 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.
  • instant_json_schema_verifier Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines.
  • balance_check Native ETH and one ERC-20 balance (default USDC) for an address on Base, raw and formatted. Result carries a signed receipt.
  • 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 measurements of any bank or provider; no protocol fee is deducted on this rail.
  • iban_check Validate IBAN structure and MOD-97 checksum. Does not establish account ownership, beneficiary identity or absence of fraud.
  • lei_check Validate a 20-character LEI and MOD-97 check digits. No registry lookup, active-registration check or legal-entity identity verification.
  • 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.
  • swift_bic_check Check SWIFT/BIC structure and country code. Does not establish bank existence, active routing or beneficiary identity.
  • batch_validate 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.
  • 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.
  • 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 an agent that cannot open an INR account.
  • pre_disbursement_guard 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.
  • gstin_check Validate an Indian GSTIN by structure (2-digit state code + PAN + entity code + 'Z') and its mod-36 cross-sum checksum.
  • ifsc_check Check the 11-character Indian IFSC format, including its fifth-character zero. No bank-branch registry lookup or account verification.
  • sanctions_address_screen 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 eviden
  • 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 creating any financial obligation. If the planner acts on the quote, it hits the settlement_url with
  • 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 (stateless). A valid receipt proves the signer signed that tool call at that timestamp; it does NOT

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