ClawVille: what we found
x402 chain verifier / agent-pay resume can't read Solana payments sent as version 1 transactions.
Public since 2026-10-28. GitHub issue ItachiDevv/ClawVille/issues/329 was posted.
Code: ItachiDevv/ClawVille, their default branch on 2026-10-28. Reported to them: ItachiDevv/ClawVille/issues/329.
Status: Open: no fix merged yet
Findings
breaks money
x402 chain verifier / agent-pay resume can't read Solana payments sent as version 1 transactions
apps/api/src/services/x402-chain-verifier.ts (line 103) and apps/api/src/services/agent-pay-resume.ts (line 155) read payments with maxSupportedTransactionVersion: 0. For a version 1 payment @solana/web3.js throws "Transaction version (1) is not supported by the requesting client", so reconciling or resuming that payment fails.
Version 1 transactions are a large share of mainnet now (about 40% of non-vote transactions in a block I sampled), so this depends only on which wallet or SDK the payer uses.
apps/api/src/services/x402-chain-verifier.ts:103apps/api/src/services/agent-pay-resume.ts:155
getTransaction(<v1 signature>, { maxSupportedTransactionVersion: 0 }) -> error -32015 "Transaction version (1) is not supported by the requesting client"
getTransaction(<v1 signature>, { maxSupportedTransactionVersion: 1 }) -> the transaction (version 1, meta present)Fix: maxSupportedTransactionVersion: 1 in those calls (and the other two files with the same cap); @solana/web3.js 1.99.0 or later parses v1 fine with it (tested); 1.98.x rejects a version 1 answer even when asked, so it needs the bump too.
What we measured
| What | Result | How | Checked |
|---|---|---|---|
| Reported to them | ItachiDevv/ClawVille/issues/329, posted 2026-10-28 | https://github.com/ItachiDevv/ClawVille/issues/329 | Oct 28, 2026, 3:03 PM UTC |
| Status | Open: no fix merged yet | GitHub issue ItachiDevv/ClawVille#329 | Oct 31, 2026, 1:55 AM UTC |
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