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.

C
Emerging
74/100
25 days ago

ag402-mcp

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

Code Verified⚡ Live Monitored: not connected

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

Is this your MCP?

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 →

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// key findings
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
🔐
You'll be asked for 6 credentials: SOLANA_PRIVATE_KEY, AG402_PREPAID_SIGNING_KEY, X402_FALLBACK_API_KEY, AG402_UNLOCK_PASSWORD, AG402_API_KEY, STRIPE_SECRET_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configJEST_WORKER_ID
🔐 secretSOLANA_PRIVATE_KEY
configVITEST
configX402_MODE
🔐 secretAG402_PREPAID_SIGNING_KEYsecret-key> ag402 serve --target http://localhost:8000 --price 0.01 --address <Addr>
configX402_NETWORK
configSOLANA_RPC_BACKUP_URL
configUSDC_MINT_ADDRESS
configX402_HOST
configX402_WALLET_DB
🔐 secretX402_FALLBACK_API_KEY
configX402_REGISTRY_URL
🔐 secretAG402_UNLOCK_PASSWORDIncorrect wallet password Mistyped password Set =yourpass to skip the prompt
configAG402_DEBUGIf ag402 doctor passes but you still see errors, enable verbose mode: =1 ag402 run -- python my_agent.py
configNO_COLOR
configFORCE_COLOR
configANSICON
🔐 secretAG402_API_KEY
🔐 secretSTRIPE_SECRET_KEY
// quality suggestions

Tool 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.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 3 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/aethercore-dev/ag402)](https://m8ven.ai/mcp/aethercore-dev/ag402)
Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.
commit: f2f4c5948dcfeb4e0b8002939230f1115be4a380
code hash: 37d831302d04377160fba9668731d7a932b0f5237c747591f50e2a02ffd6d696
verified: 8/16/2026, 1:07:09 PM
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