Brük — verified XRP Ledger answers
https://bruk-agent-api.fly.dev/v1/payment-checkVerified XRP Ledger answers with proof: payment, send, and issuer checks. Pay per call via x402.
Paid verification
How it worksNo sponsored paid call yet.
Pay this endpoint once from your own wallet (Base USDC, up to $1.00) and we call it and record what came back. Your wallet pays the listed recipient directly; Agent Tools never holds funds. Sponsored checks prove delivery; they do not count as demand.
Quality grade
How grading works- ✓ Answers a real HTTP 402 challenge
- ✓ Publishes a /.well-known/x402 descriptor
- ✓ Payment address on record
- ✓ Settlement network declared
- ✓ Price declared
x402 readiness
Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here B+, 67.0/100), which weighs availability, payability and on-chain demand. How the two differ
| Valid payment requirements | 10/10 | Payment requirements carry a payee, a mainnet network and a price. |
| Live 402 challenge | 20/25 | Endpoint reachable; its 402 challenge was seen earlier (85 ms). |
| x402 version | n/a | x402 version not observed yet. |
| Signed descriptor | n/a | No x402 standard defines a signed descriptor. |
| Uptime (30 days) | 14.42/15 | 25/26 probes succeeded over 30 days (96%). |
| Resource declaration | 10/10 | Declares 9 paid resource(s). |
| Verified identity | 5/10 | Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control. |
| Freshness + modern flags | 5/5 | seen in a source within 7 days; declares x402. |
| Security declaration | n/a | Payment is the access control for an x402 resource. |
Compared with peers
Against 10,082 reachable x402 APIs in our daily snapshot (2026-11-12 06:46 UTC). Display only; it does not change search order.
- Readiness
- Higher than 73% of peers
- This listing 86 · peer median 78
- Latency
- Faster than 93% of peers
- This listing 85 ms · peer median 205 ms
Where it loses the most points, and how to win them back
- Live 402 challenge −5
— Answer the paid path with a valid 402 challenge.
Now: Endpoint reachable; its 402 challenge was seen earlier (85 ms).
- Verified identity −5
— Claim the listing and prove control of its domain.
Now: Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
- Uptime (30 days) −0.6
— Stay reachable in our daily probes.
Now: 25/26 probes succeeded over 30 days (96%).
Paid endpoints
9 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.
https://bruk-agent-api.fly.dev/v1/pulse
$0.0010 / call
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.
https://bruk-agent-api.fly.dev/v1/payment-check
$0.0100 / call
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.
https://bruk-agent-api.fly.dev/v1/issuer-check
$0.0100 / call
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 toke
https://bruk-agent-api.fly.dev/v1/token-check
$0.0100 / call
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 quote
https://bruk-agent-api.fly.dev/v1/large-payments
$0.0200 / call
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.
https://bruk-agent-api.fly.dev/v1/send-check
$0.0050 / call
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_iss
https://bruk-agent-api.fly.dev/v1/receipt-card
$0.0200 / call
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
https://bruk-agent-api.fly.dev/v1/ledger-moment
$0.0200 / call
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
https://bruk-agent-api.fly.dev/v1/payment-watch
$0.0500 / call
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
How to call
curl -sS -i -X GET https://bruk-agent-api.fly.dev/v1/payment-check # expect HTTP 402 Payment Required (about 0.001 USDC/call)https://bruk-agent-api.fly.dev/mcpListed in
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