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Reported issues for x402-mcp

Pod holds 9 of 9 problems reported by people outside the maintainer team. Issues filed by the project's own owners, members and collaborators are excluded entirely — a maintainer's release checklist is not a warning to a prospective user.

Back to x402-mcp.

Most discussed

[content] Hands-on tutorial: calling a live x402 micropayment API from an AI agent

Write our own tutorial (900-1500 words, code included) walking through paying for and consuming the live Pulse endpoint ($0.05) from an AI agent — 402 challenge, USDC payment, final data. Publish free on our own channel (README, blog, dev.to).

Why hot: x402/agentic payments are widely discussed right now; beginner-friendly, code-verified walkthroughs are scarce. Distribution payoff: evergreen SEO/collateral pointing at our own Pulse endpoint as the worked example. Source: drafted by

Read the thread · 2026-07-25 · open · 3 comments

bounty: $0.01 USDC — live x402 verification call to payTo

Settlement

  • Amount: $0.01 USDC (10_000 atomic) via the already-live machine cashier
  • Network: Base eip155:8453
  • Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
  • payTo: 0xAB745e5F576667037696e78ba7dA28E193E4423D

This issue does not need a new code file. Paying the live endpoint is the delivery.

Public spec

  1. Unpaid GET https://x402-mcp.onrender.com/us/mn/property-check?address=1700+Penn+Ave+N → HTTP 402.
  2. Free control GET `https://x402-mcp.onrender.com/m

Read the thread · 2026-08-26 · closed · 2 comments

bounty: $25 USDC — add-only docs/LIVE_LEDGER.md

Settlement

  • Amount: $25 USDC (25_000_000 atomic)
  • Network: Base eip155:8453
  • Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
  • payTo: 0xAB745e5F576667037696e78ba7dA28E193E4423D
  • Pay: USDC on Base to payTo, comment FUNDED + BaseScan URL

Protocol: https://github.com/kwizzlesurp10-ctrl/x402-mcp/blob/master/docs/BOUNTIES.md

Public spec (add-only)

Create new file docs/LIVE_LEDGER.md. Honest numbers including zeros and bad weeks. Do not rewrite dashboard code.

Minimu

Read the thread · 2026-08-26 · open · 1 comment

bounty: $15 USDC — add-only docs/BAZAAR_AUDIT.md

Settlement

  • Amount: $15 USDC (15_000_000 atomic)
  • Network: Base eip155:8453
  • Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
  • payTo: 0xAB745e5F576667037696e78ba7dA28E193E4423D
  • Pay: USDC on Base to payTo, comment FUNDED + BaseScan URL

Protocol: https://github.com/kwizzlesurp10-ctrl/x402-mcp/blob/master/docs/BOUNTIES.md

Public spec (add-only)

Create new file docs/BAZAAR_AUDIT.md. Do not change discovery code.

For each discoverable paid/free resource (city catal

Read the thread · 2026-08-26 · open · 1 comment

[demo] Wire /base/tx-decision into a Base trading-bot submission loop (reference wrapper)

Write a small reference wrapper (Python/TS) around https://x402-mcp.onrender.com/base/tx-decision ($0.01/call) that a Base bot calls before submitting each tx to decide submit-now-vs-wait + EIP-1559 sizing. Include a minimal (can be stubbed/simulated) example bot loop calling it at least 3x against real current Base gas conditions, logging the decision + fee params.

Why hot: direct code-level integration of a paid decision API into an agent's tx loop is the frontier use case for x402 right

Read the thread · 2026-07-25 · closed · 1 comment

💰 External sale: $0.0100 USDC from 0xc22c17fc… [evt:23eeb7eb2b]

A wallet that is not ours paid the storefront.

This is a real external purchase — the first-ever was 0xadacdfdd on 2026-07-22 (old $0.25 Pulse). Cross-check /ledger/revenue and /demand to see which product and client class. C

Read the thread · 2026-08-26 · open · external user · 0 comments

Live third-party x402 seller (MCP in-band, PayAI facilitator) available for buyer-side testing

Disclosure: base-tx-explain is our own service. Filing this because your buyer side may want an unaffiliated live seller to test against.

We run a paid MCP server at https://base-tx-explain.fly.dev/mcp. One tool, explain_transaction(tx_hash): deterministic decode of a Base mainnet transaction to strict JSON. 10 free calls per client, then $0.02 USDC on Base via x402 v2. The difference from your storefront: payment is in-band at the MCP layer. tools/call returns the challenge, the retry carr

Read the thread · 2026-08-20 · open · external user · 0 comments

[demo] Minimal MCP client (<200 lines) that pays for a tool call via x402

A small standalone Python or TS script: connect to x402-mcp, discover the paid tool, handle the 402 challenge, settle on Base mainnet, print the result + tx hash. Publish with a README + demo log.

Why hot: very few open reference implementations wire MCP discovery to an x402 payment handshake. Distribution payoff: a forkable reference client other agent developers can point at our endpoints directly — the same 'direct integration' lever as the BankrBot/ClawRouter outreach. Source: d

Read the thread · 2026-07-25 · open · 0 comments

Most recent

[demo] Minimal open-source demo: pay our MCP server for a tool call via x402

Build a small OSS demo connecting an MCP client to io.github.kwizzlesurp10-ctrl/x402-mcp, discovering its tools, and completing one real paid call end-to-end on Base mainnet. Publish as a public repo.

Why hot: MCP + x402 wired together end-to-end is barely documented anywhere. Distribution payoff: concrete proof-of-integration collateral for outreach/registry visitors. Note: reading the source first matters here — the public host is seller-only (no EVM_PRIVATE_KEY), so the buyer-sid

Read the thread · 2026-07-25 · open · 0 comments

The remaining reports are on the project's issue tracker.