Brük — verified XRP Ledger answers

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Verified XRP Ledger answers with proof: payment, send, and issuer checks. Pay per call via x402.

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Copy this into your MCP client config:

{
  "mcpServers": {
    "Brük — verified XRP Ledger answers": {
      "url": "https://bruk-agent-api.fly.dev/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (14)

• ledger_pulse read-only

  XRP Ledger network health right now: latest validated ledger, close time, transactions and payments in it, fee levels, load, and rolling averages cross-checked against a direct ledger read. Useful before submitting XRP Ledger transactions or when reporting current network conditions. The first call each day returns the real answer without payment. After that, about $0.001 via x402 (USDC on Base, or XRP / RLUSD on the XRP Ledger). A payment watch is paid from the first call. Bad input and ledger outages are never charged.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• payment_check read-only

  Verifies that an XRP Ledger payment settled as expected: validation, result code, destination, destination tag, currency, issuer, and the amount actually delivered, which exposes partial-payment tricks. Useful when confirming that a customer or counterparty really paid. The first call each day returns the real answer without payment. After that, about $0.01 via x402 (USDC on Base, or XRP / RLUSD on the XRP Ledger). A payment watch is paid from the first call. Bad input and ledger outages are never charged.

  Parameters:

  • tx (required) — string — 64-character transaction hash
  • amount — string
  • issuer — string — XRP Ledger r-address
  • network — string — Default mainnet
  • currency — string
  • destination — string — XRP Ledger r-address
  • destination_tag — integer

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• issuer_check read-only

  Checks whether an XRP Ledger token issuer is who it claims to be: two-way domain verification (on-ledger Domain field against the domain's xrp-ledger.toml), tokens issued and outstanding, and control flags such as freeze, clawback, blackholed, and multisign. Useful before accepting or holding a token. The first call each day returns the real answer without payment. After that, about $0.01 via x402 (USDC on Base, or XRP / RLUSD on the XRP Ledger). A payment watch is paid from the first call. Bad input and ledger outages are never charged.

  Parameters:

  • account (required) — string — XRP Ledger r-address

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• token_check read-only

  Identifies one XRP Ledger token from the validated ledger: a trust-line token (currency code plus issuer) or a multi-purpose token (48-hex issuance id). Reports the type, issuer domain check, supply, and controls that can freeze, lock, claw back, or restrict holders. Issuer-written metadata is quoted and is not treated as fact; a missing asset class is reported missing. Does not check other chains, and does not rate legal backing or solvency. Useful before accepting an MPT or any other token. The first call each day returns the real answer without payment. After that, about $0.01 via x402 (USDC on Base, or XRP / RLUSD on the XRP Ledger). A payment watch is paid from the first call. Bad input and ledger outages are never charged.

  Parameters:

  • issuer — string — XRP Ledger r-address
  • currency — string — Trust-line token code, with issuer. Not XRP.
  • mpt_issuance_id — string — 48-hex multi-purpose token issuance id. Use this or currency plus issuer, not both.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• large_payments read-only

  Lists large XRP Ledger payments (50,000+ XRP or major stablecoins) in a recent window of up to 120 minutes, each independently re-checked on the ledger, with an explicit note when the window is not fully covered. Useful for market and liquidity monitoring. The first call each day returns the real answer without payment. After that, about $0.02 via x402 (USDC on Base, or XRP / RLUSD on the XRP Ledger). A payment watch is paid from the first call. Bad input and ledger outages are never charged.

  Parameters:

  • limit — integer
  • minutes — integer
  • min_value — string — At least 50000

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• send_check read-only

  Pre-send check for an XRP Ledger payment: whether the destination is activated, requires a destination tag, blocks or pre-approves senders, can hold the token (trust line, or MPT opt-in and issuer approval), is blackholed, and whether the source can afford it. For a multi-purpose token, pass mpt_issuance_id instead of currency and issuer. Returns ok_to_send, send_with_caution, or will_fail with reasons. Useful before any irreversible XRP Ledger payment. The first call each day returns the real answer without payment. After that, about $0.005 via x402 (USDC on Base, or XRP / RLUSD on the XRP Ledger). A payment watch is paid from the first call. Bad input and ledger outages are never charged.

  Parameters:

  • destination (required) — string — XRP Ledger r-address
  • amount — string
  • issuer — string — XRP Ledger r-address
  • source — string — XRP Ledger r-address
  • network — string — Default mainnet
  • currency — string
  • destination_tag — integer
  • mpt_issuance_id — string — 48-hex MPT issuance id. Use instead of currency and issuer.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• payment_watch

  Payment arrival alert: watches an XRP Ledger address for up to 24 hours and POSTs a signed webhook when a matching payment is final (validated, tesSUCCESS, delivered amount checked), or a watch.expired event if none arrives. Payments that land during restarts are still caught. Useful when waiting on an incoming payment without polling. The first call each day returns the real answer without payment. After that, about $0.05 via x402 (USDC on Base, or XRP / RLUSD on the XRP Ledger). A payment watch is paid from the first call. Bad input and ledger outages are never charged.

  Parameters:

  • address (required) — string — XRP Ledger r-address
  • webhook (required) — string — Public https URL for signed events
  • hours — integer
  • issuer — string — XRP Ledger r-address
  • network — string — Default mainnet
  • currency — string
  • min_amount — string
  • destination_tag — integer

  Hints: read-only no · destructive not declared · idempotent not declared · open-world yes

• receipt_card read-only

  Verified payment receipt image (1200x675 PNG) for an XRP Ledger payment, drawn only from the validated ledger: delivered amount, sender, recipient, destination tag, ledger, close time, result, optional expectation checks, and a QR code to the public explorer. Only final outcomes are drawn; not-found or unvalidated transactions are not charged. Useful for showing a person proof that a payment arrived. The first call each day returns the real answer without payment. After that, about $0.02 via x402 (USDC on Base, or XRP / RLUSD on the XRP Ledger). A payment watch is paid from the first call. Bad input and ledger outages are never charged.

  Parameters:

  • tx (required) — string — 64-character transaction hash
  • amount — string
  • issuer — string — XRP Ledger r-address
  • network — string — Default mainnet
  • currency — string
  • destination — string — XRP Ledger r-address
  • destination_tag — integer

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• ledger_moment read-only

  Ledger moment image (1200x675 PNG): one validated XRP Ledger ledger drawn as one tile per transaction in ledger order, colored by type (payments, DEX offers, trust lines, AMM, NFTs, other), failed transactions hollow, with counts, fees burned, XRP supply, and the ledger hash. Latest validated ledger by default. Useful for posts, reports, and newsletters about network activity. The first call each day returns the real answer without payment. After that, about $0.02 via x402 (USDC on Base, or XRP / RLUSD on the XRP Ledger). A payment watch is paid from the first call. Bad input and ledger outages are never charged.

  Parameters:

  • network — string — Default mainnet
  • ledger_index — integer

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• list_services read-only

  Free. Lists every Brük service with price, inputs, and its HTTP endpoint.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world not declared

• get_sample read-only

  Free. Returns a recent real answer from a Brük service (cached up to 5 minutes) so you can see the format before paying.

  Parameters:

  • service (required) — string

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• free_send_check read-only

  Free, one per user per day. Before sending XRP or a token on the XRP Ledger: will the payment fail (missing destination tag, unfunded or deleted account, no trust line, wrong issuer) and what should you double-check? Returns the verdict, blockers, and cautions from a validated ledger. The paid send_check adds the full evidence and has no daily limit.

  Parameters:

  • destination (required) — string — XRP Ledger r-address
  • amount — string
  • issuer — string — XRP Ledger r-address
  • source — string — XRP Ledger r-address
  • network — string — Default mainnet
  • currency — string
  • destination_tag — integer

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

• token_types read-only

  Free guide, not a live check. Which XRP Ledger token types Brük can identify, how to pass an MPT issuance id, and which other chains Brük does not read.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world not declared

• learn_about_bruk read-only

  Free. Brük's site, its short film about the XRP Ledger (chapters, transcript, captions), and the credit line for quoting it.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world not declared

Publisher website

Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.