io.github.SUNDRAM07/txwhy

up checked 2026-11-11T00:37:52.141Z

Unclaimed · Unverified

Publisher-provided title

TxWhy

Publisher-provided description

Failed Solana transaction in, working transaction out. Exact cause, rebuilt tx, verifiable repair.

Summary by lookupd

Diagnoses failed Solana mainnet transactions, names the error and failing instruction, and returns a simulated unsigned repaired…

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http txwhy https://txwhy.vercel.app/api/mcp

Codex, remote (streamable-http)

codex mcp add txwhy --url https://txwhy.vercel.app/api/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "txwhy": {
      "url": "https://txwhy.vercel.app/api/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Publisher-provided text

repair_transaction Give it a Solana transaction that failed, or one you are about to send. It finds the cause and returns a rebuilt UNSIGNED transaction that has been simulated ag
diagnose_transaction Explains why a transaction that landed on mainnet failed: the exact failing instruction in the call tree, the named error, its cause, and how to fix it. Read-on
explain_error Looks up what a custom program error code means for a given program, using 1,800+ named errors from major Solana programs plus the runtime's own errors. Use it

Shows this live status and links here; updates hourly.

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