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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "openfang-rail": {
      "type": "http",
      "url": "https://hcrb.in/mcp"
    }
  }
}

claude mcp add --transport http openfang-rail https://hcrb.in/mcp

[mcp_servers.openfang-rail]
url = "https://hcrb.in/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "openfang-rail": {
      "type": "remote",
      "url": "https://hcrb.in/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "openfang-rail": {
      "type": "http",
      "url": "https://hcrb.in/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=openfang-rail&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vaGNyYi5pbi9tY3AifQ%3D%3D"
}

{
  "servers": {
    "openfang-rail": {
      "type": "http",
      "url": "https://hcrb.in/mcp"
    }
  }
}

{
  "mcpServers": {
    "openfang-rail": {
      "httpUrl": "https://hcrb.in/mcp"
    }
  }
}

extensions:
  "openfang-rail":
    enabled: true
    name: "openfang-rail"
    type: streamable_http
    uri: "https://hcrb.in/mcp"
    timeout: 300

Quality 69 / 100needs work

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene86 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations24 of 24 tools declare readOnlyHint or destructiveHint
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: token_contract_risk (destructiveHint); instant_json_schema_verifier (destructiveHint); balance_check (destructiveHint); …
pass
tools.token_costabout 6,354 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability25 · weight 15

warn
stability.changes96 tool changes in 30 days
fail
stability.rug_pull16 tools kept their name but changed most of their description in 30 days; review before trusting them

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

24 tools, about 6,354 tokens to load them all · tool set ba8757e43318 · tools last changed 2026-10-17 · checked 2026-10-19 10:20 UTC

Tool changes

2026-10-17screen_entityremoved
screen_entity=screen_sanctions_exact(entity:str!,jurisdiction:str?,wallet:str?)->XDR1SanctionsVerdict
2026-10-17verify_idremoved
verify_id=verify_identifier(kind:enum[iban|lei|vat|gstin|ein|abn|duns|bic|isin|npi|uk_crn|eu_eori|other]!,id:str!,cc:str?)->XDR1Receipt
2026-10-17reconcileremoved
reconcile=reconcile_commerce(order:obj!,payments:arr!,delivery:obj?,certify:bool?)->XDR1ExceptionReport
2026-10-17solvency_checkremoved
solvency_check=balance_check(wallet:str!,asset:enum[USDC|EURC|ETH]?,min_minor:str?)->XDR1SolvencyProof
2026-10-17receipt_verifyadded
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 prove funds moved or any business claim.
2026-10-17check_priceadded
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 an EIP-3009 signed voucher.
2026-10-17sanctions_address_screenadded
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.
2026-10-17ifsc_checkadded
Check the 11-character Indian IFSC format, including its fifth-character zero. No bank-branch registry lookup or account verification.
2026-10-17gstin_checkadded
Validate an Indian GSTIN by structure (2-digit state code + PAN + entity code + 'Z') and its mod-36 cross-sum checksum.
2026-10-17pre_disbursement_guardadded
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.

Showing the latest 10. Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 52 / 100

no-repository

provenance45

liveness17

freshness85

hygiene80

+website -unreachable(2 failures) ~updated-37d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://hcrb.in/mcp` streamable-http	none	no (2 failures)	91%	348 ms	2025-11-25	2026-10-17

Tools (24)

`balance_check`read-only	Native ETH and one ERC-20 balance (default USDC) for an address on Base, raw and formatted. Result carries a signed receipt.
`batch_validate`read-only	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.
`block_info`read-only	Base block header: number, timestamp, transaction count and base fee for the latest or a given block. Result carries a signed receipt.
`calculate_fx_savings`read-only	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.
`check_price`read-only	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 an EIP-3009 signed voucher.
`clean_markdown_scraper`read-only	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`read-only	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.
`crypto_ticker`read-only	Spot USD price for a crypto ticker or CoinGecko id from public price feeds, cached 60 s. Result carries a signed receipt.
`erc20_balance`read-only	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`read-only	Reference fiat and stablecoin conversion rate from a static table, not a live feed. Returns rate and inverse; result carries a signed receipt.
`gstin_check`read-only	Validate an Indian GSTIN by structure (2-digit state code + PAN + entity code + 'Z') and its mod-36 cross-sum checksum.
`iban_check`read-only	Validate IBAN structure and MOD-97 checksum. Does not establish account ownership, beneficiary identity or absence of fraud.
`ifsc_check`read-only	Check the 11-character Indian IFSC format, including its fifth-character zero. No bank-branch registry lookup or account verification.
`india_supplier_check`read-only	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.
`instant_json_schema_verifier`read-only	Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines.
`lei_check`read-only	Validate a 20-character LEI and MOD-97 check digits. No registry lookup, active-registration check or legal-entity identity verification.
`pre_disbursement_guard`read-only	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.
`receipt_verify`read-only	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 prove funds moved or any business claim.
`sanctions_address_screen`read-only	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.
`swift_bic_check`read-only	Check SWIFT/BIC structure and country code. Does not establish bank existence, active routing or beneficiary identity.
`token_contract_risk`read-only	Deterministic Base contract facts: ERC-20 metadata, proxy slots, owner(), privileged-function selectors and flags. Not a safety verdict. Result carries a signed receipt.
`tx_activity`read-only	Outbound transaction count (nonce) and contract-or-EOA check for an address on Base. Result carries a signed receipt.
`vat_mod97_check`read-only	Check the supported Belgian VAT format and MOD-97 checksum. BE only; not VIES, other EU VAT formats, registration status or tax compliance.
`vendor_onboarding_pack`read-only	Check supplied IBAN, LEI, Belgian VAT and UK company-number fields in one result. Structural checks only; no ownership, registry or fraud clearance.

Schemas: list_tools.

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More from io.github.89rat

Official server.json

{
  "name": "io.github.89rat/openfang-rail",
  "title": "openfang-rail",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://hcrb.in/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.2.1",
  "websiteUrl": "https://hcrb.in",
  "description": "Deterministic banking, LEI, VAT, SWIFT & compliance checks via MCP with signed XDR-1 receipts."
}