ag402-mcp (AetherCore-Dev/ag402) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 3 tools. No publisher has claimed this listing.
Ag402 is the payment layer for Coinbase's x402 protocol. Wrap any API or MCP server with a paywall in one command (ag402 serve), or let your AI agent auto-pay for paid APIs (ag402 run). Zero code changes for both buyers and sellers. Solana USDC, ~0.5s settlement, non-custodial, 648+ tests, MIT licensed. Works with Claude Code, Cursor, OpenClaw, LangChain, AutoGen, CrewAI out of the box.
Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
How we verified
Verified is a snapshot. Live keeps it current, and builds your track record.
⚡ Connect GitHub → continuous verification on every pushwhy connect →Who stands behind it
AetherCore-Dev
Source: Glama
Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →
Install from
M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.
JEST_WORKER_IDSOLANA_PRIVATE_KEYVITESTX402_MODEAG402_PREPAID_SIGNING_KEYsecret-key> ag402 serve --target http://localhost:8000 --price 0.01 --address <Addr>X402_NETWORKSOLANA_RPC_BACKUP_URLUSDC_MINT_ADDRESSX402_HOSTX402_WALLET_DBX402_FALLBACK_API_KEYX402_REGISTRY_URLAG402_UNLOCK_PASSWORDIncorrect wallet password Mistyped password Set =yourpass to skip the promptAG402_DEBUGIf ag402 doctor passes but you still see errors, enable verbose mode: =1 ag402 run -- python my_agent.pyNO_COLORFORCE_COLORANSICONAG402_API_KEYSTRIPE_SECRET_KEYTool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
3/3 tools missing one or more hints — fetch_with_autopay (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); wallet_status (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); transaction_history (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint). OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Domain consistency
npm scope @ag402 doesn't match GitHub owner aethercore-dev
Use the same org name across GitHub, npm, and your homepage so users can verify the publisher.
Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.
[](https://m8ven.ai/mcp/aethercore-dev/ag402)?variant=verified to the badge URL.Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.
https://m8ven.ai/api/mcp/tool-check