io.github.Mlcharle518/plumb-data-exchange

Tools

• check_x402_receipt

  Free. Cross-check a seller's signed x402 offer + receipt (offer-and-receipt extension): verifies the signatures (official x402 functions; pin the seller with sellerAddress for EIP-712 or sellerJwk for JWS), checks offer and receipt agree, and returns the exact `claim` to prove with verify_payment. Pass that verification's checkId to learn which side failed.

  shallow
• convert_to_csv

  Convert a table to CSV without changing any value; verified by round-trip. Costs $0.05 USDC (x402).

  shallow
• deduplicate

  Remove duplicate rows by exact key, keeping the first or last, and report conflicting columns per group. Costs $0.05 USDC (x402).

  shallow
• get_job

  Free. Status and (once verified) the result of a paid job, using the accessToken its paid call returned.

  shallow
• get_verification

  Free. Current state of a verification by checkId; re-checks it once its retry or challenge time has passed.

  shallow
• get_verifications

  Free. Up to 50 checks at once (re-checked when due), as rows; format "csv" adds a reconciliation CSV.

  shallow
• reconcile

  Compare two versions of a table by key: rows added, removed and changed (with the changed columns). Costs $0.05 USDC (x402).

  shallow
• try_verify_payment

  Free: the same verification as verify_payment, limited to 3 NEW claims per client per day (asking again about a claim already checked is always free).

  shallow
• verify_payment

  Verify an on-chain payment without trusting any RPC: did this tx transfer at least this amount of a token (default USDC) to this payee, optionally from this payer? Proven by Plumb (Base via proof-backed L1 checkpoints, Ethereum via a light client, XRP Ledger via a quorum of Ripple's validator list: RLUSD, XRP or any issued currency). Bound to the exact transfer (log index); returns the proof level, how long a Base checkpoint can still be challenged, the evidence to re-check, and an Ed25519-signed receipt. Never answers not_paid while a payment is still pending; abstains (unverifiable) whenever the proof is incomplete. Costs $0.02 USDC (x402) ($0.002 for an XRP Ledger payment); asking again about the same claim costs nothing. Optional requiredLevel (releasable or not) and callbackUrl (signed events when the level is reached, the answer changes, or checking gives up).

  shallow
• verify_payments_batch

  Verify up to 25 payments in one call for $0.25 ($0.05 when every claim is on the XRP Ledger) USDC (x402): give `claims` (same fields as verify_payment) or `csv` (header: chain,txHash,payee,token,minAmountRaw,payer,logIndex,invoiceId). Claims already checked cost nothing; if all of them were, nothing is charged. Returns one row per claim (format "csv" adds a reconciliation CSV).

  shallow
• watch_verification

  Free for a PAID check: add a callback (https) that receives signed events when requiredLevel is reached, when the answer changes, when it becomes final, or when checking gives up. The service re-checks on its own.

  shallow
• what_should_i_build

  What should I build? x402 agent demand by category from public chain data (Base USDC + XRPL), with fake demand removed (testers, sellers paying themselves, loops; wallet fleets counted as one buyer) and gaps ranked (repeat buyers per seller). Rolling 7 days, refreshed every 2 h. Signed answer with sample transactions you can check, plus a dashboard link.

  shallow

Embed this server’s score

Tool count and median score across every tool in this server’s corpus — honest in a way a single cherry-picked tool’s badge wouldn’t be.

[![Vouch score](https://vouch.tools/api/servers/6cd90e10-a922-4ef3-9658-a52eeac09b3c/badge.svg)](https://vouch.tools/servers/6cd90e10-a922-4ef3-9658-a52eeac09b3c)