MCP server

Plumb Data Exchange

io.github.Mlcharle518/plumb-data-exchange

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Verified table jobs and RPC-free payment verification (Base/Ethereum). Pay per call via x402.

Website

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

14

Token cost

About 3,880 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http plumb-data-exchange https://numba2witcheese.tail7d8d44.ts.net:10000/pde-mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.plumb-data-exchange]
url = "https://numba2witcheese.tail7d8d44.ts.net:10000/pde-mcp"

Gemini CLI

{"mcpServers":{"plumb-data-exchange":{"httpUrl":"https://numba2witcheese.tail7d8d44.ts.net:10000/pde-mcp"}}}

Cursor

{"mcpServers":{"plumb-data-exchange":{"url":"https://numba2witcheese.tail7d8d44.ts.net:10000/pde-mcp"}}}

VS Code

{"servers":{"plumb-data-exchange":{"type":"http","url":"https://numba2witcheese.tail7d8d44.ts.net:10000/pde-mcp"}}}

Antigravity

agy mcp add plumb-data-exchange https://numba2witcheese.tail7d8d44.ts.net:10000/pde-mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"plumb-data-exchange","server_url":"https://numba2witcheese.tail7d8d44.ts.net:10000/pde-mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"plumb-data-exchange","server_url":"https://numba2witcheese.tail7d8d44.ts.net:10000/pde-mcp"}

Tools

• check_x402_receipt ~228 tokens
  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. P
• convert_to_csv ~220 tokens
  Convert a table to CSV without changing any value; verified by round-trip. Costs $0.05 USDC (x402).
• credential_status ~166 tokens
  Free. The exchange's on-ledger ProvenPayer credential (XLS-70): issued to an XRPL account after 2 settled, Plumb-proven payments to the house; readable by any seller with ledger_entry. Returns the account's standing, the issued credential (with the CredentialCreate hash, provable with plumb-xrpl), h
• deduplicate ~300 tokens
  Remove duplicate rows by exact key, keeping the first or last, and report conflicting columns per group. Costs $0.05 USDC (x402).
• get_job ~112 tokens
  Free. Status and (once verified) the result of a paid job, using the accessToken its paid call returned.
• get_verification ~184 tokens
  Free. Current state of a verification by checkId; re-checks it once its retry or challenge time has passed.
• get_verifications ~213 tokens
  Free. Up to 50 checks at once (re-checked when due), as rows; format "csv" adds a reconciliation CSV.
• prove_xrpl_transaction ~153 tokens
  Prove any XRP Ledger transaction without trusting a server: validator-list quorum, hash links, rebuilt tx tree. Returns full fields, metadata (balances, escrows, channels, credentials as of the tx), quorum evidence and a signed receipt. Unvalidated tx keeps your payment.
• reconcile ~284 tokens
  Compare two versions of a table by key: rows added, removed and changed (with the changed columns). Costs $0.05 USDC (x402).
• try_verify_payment ~611 tokens
  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). Holders of the exchange's on-ledger ProvenPayer credential get more: pass xrplProof (see credential_status).
• verify_payment ~734 tokens
  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:
• verify_payments_batch ~298 tokens
  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
• watch_verification ~233 tokens
  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.
• what_should_i_build ~144 tokens
  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 s

Browse

• GitHub tools
• Website monitoring
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