x402-discovery (rplryan/ouroboros) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 17 tools. No publisher has claimed this listing.

C
Emerging
74/100
10 days ago

x402-discovery

Discovers and queries x402-payable APIs at runtime — enables autonomous agents to find, evaluate, and pay for services via USDC micropayments on Base without API keys or subscriptions.

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

rplryan

Source: Glama

Is this your MCP?

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Install from

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
🚨
Secret credentials may flow to a network call
4 flows detected: GITHUB_TOKEN, OPENROUTER_API_KEY. We can’t prove the destination matches the brand the credential belongs to.
🔐
You'll be asked for 5 credentials: GITHUB_TOKEN, OPENROUTER_API_KEY, OPENAI_API_KEY, ANTHROPIC_API_KEY, TELEGRAM_BOT_TOKEN
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.
configWALLET_ADDRESS
configNETWORK
configQUERY_PRICE_USDC_UNITS
configHEALTH_CHECK_PRICE_USDC_UNITS
configX402_DEV_MODE
configOUROBOROS_MODEL_LIGHTModel for lightweight tasks (dedup, compaction)
configOUROBOROS_REPO_DIR
🔐 secretGITHUB_TOKEN[github.com/settings/tokens](https://github.com/settings/tokens) -- Generate a classic token with repo scope
configGITHUB_USERGitHub username
configGITHUB_REPOGitHub repository name
configGITHUB_BRANCH
configOUROBOROS_PRE_PUSH_TESTS
configDRIVE_ROOT
🔐 secretOPENROUTER_API_KEY[openrouter.ai/keys](https://openrouter.ai/keys) -- Create an account, add credits, generate a key
🔐 secretOPENAI_API_KEY[platform.openai.com/api-keys](https://platform.openai.com/api-keys) -- Enables web search tool
configOUROBOROS_WEBSEARCH_MODELModel for web search (OpenAI Responses API)
configOUROBOROS_CLAUDE_CODE_PERMISSION_MODE
🔐 secretANTHROPIC_API_KEY[console.anthropic.com/settings/keys](https://console.anthropic.com/settings/keys) -- Enables Claude Code CLI
configOUROBOROS_MODELPrimary LLM model (via OpenRouter)
configOUROBOROS_BOOT_BRANCH
configOUROBOROS_WORKER_START_METHOD
configOUROBOROS_DIAG_HEARTBEAT_SEC
configOUROBOROS_MODEL_CODEModel for code editing tasks
configOUROBOROS_DIAG_SLOW_CYCLE_SEC
🔐 secretTELEGRAM_BOT_TOKEN4. You will use this token as in the next step.
configTOTAL_BUDGETYour spending limit in USD (e.g. 50)
configOUROBOROS_BG_BUDGET_PCTPercentage of total budget allocated to background consciousness
configOUROBOROS_MAX_ROUNDSMaximum LLM rounds per task
Deployment configuration, supplied by whoever hosts the server. Users are not asked for these.
deployPORT
// 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

17/17 tools missing one or more hints — x402_discover (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); x402_browse (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); x402_health (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +14 more. 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.

Tool test coverage

Only 0/17 tools referenced in tests (0%)

Write tests that reference each tool by name so every tool has at least one test.

Secrets never reach shell commands

2 secret values passed to a subprocess as an argument — no shell is invoked, so there is nothing to inject into

Never pass secrets through shell commands. Use library APIs that accept credentials as arguments.

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 4 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/rplryan/ouroboros)](https://m8ven.ai/mcp/rplryan/ouroboros)
Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.
commit: 9b6d3802cd4ae77c956351fa4a77406f932018c5
code hash: b06f5a995d954134e5007165d3e5435bd624636fa2e841bd3a53b2ed0b7b13e3
verified: 9/3/2026, 2:31:40 PM
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