Grey Ridge x402 MCP (rezearcher/x402-data-api) is an MCP server listed on the M8ven Trust Index. It scores 56 out of 100, grade D. It declares 22 tools. No publisher has claimed this listing.

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D
Caution
56/100

Grey Ridge x402 MCP

Enables AI agents to access crypto prices, DeFi yields, Polymarket data, Base chain info, and security scans with pay-per-call via USDC on Base mainnet.

→ rezearcher/x402-data-api· listed on glama

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

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Who stands behind it

rezearcher

Source: Glama

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Glamanot scored here

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
⚠️
Known vulnerabilities in dependencies: 5 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
✅
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.
// tools this server exposes22 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

enrich_tech_risk

Security enrichment: tech-stack fingerprint + CVE mapping + EPSS + CISA KEV + verdict (clear/review/block) for a domain. Cost: $0.05 USDC per call (x402 micropayment).

enrich_domain

Firmographic + tech-stack enrichment: RDAP registrant/registrar, DNS records, full subdomain enumeration + certificate-transparency history, tech-stack fingerprint, verdict (clear/review/block, based on domain age) for a domain. Cost: $0.05 USDC per call via the shared MCP payment gate (the direct H…

scan_mcp_server

Security-audit a target MCP server for prompt-injection / tool-poisoning. Fetches the server's advertised tools and statically analyzes each for hidden instructions, data-exfiltration hints, dangerous capabilities, cross-tool shadowing, and invisible-unicode payloads (OWASP LLM01/LLM08). Returns fin…

scan_mcp_preview

FREE preview scan of a target MCP server for tool-poisoning / prompt-injection. Returns issue count, severity breakdown, risk score, and verdict (clear/review/block) — but NOT which tools or the evidence. Use this to check any MCP server (including your own) at no cost; if issues are found, call the…

crypto_prices

Live spot token prices (price, change_24h, symbol, confidence, timestamp) for CoinGecko ids, sourced from DefiLlama. Cost: $0.005 USDC per call via x402.

crypto_funding

Live cross-venue perpetual-futures funding rates from Hyperliquid+OKX+dYdX (per-venue rate, arb spread in bps, cheapest-long/richest-short venue, premium/basis, annualized_hl, annualized_okx, LONGS_PAY/SHORTS_PAY/NEUTRAL signal, next_funding_ts, mark/oracle price, open interest, day volume), ranked …

defi_yields

Live DeFi lending/LP yield pools (project, chain, symbol, pool id, APY breakdown incl. 1d/7d/30d trend + apyBase7d/apyMean30d, IL risk incl. il7d, exposure, reward/underlying tokens, outlier flag, mu/sigma, DefiLlama stability forecast, TVL, stablecoin flag) from DefiLlama, ranked by TVL (or risk-ad…

pm_markets

Live Polymarket prediction-market data — question, outcomes, outcome prices, bestBid/bestAsk/spread, volume24hr/volume1wk, oneDayPriceChange, clobTokenIds, conditionId, category tags, liquidity, end date — ranked by volume24hr. Cost: $0.005 USDC per call via x402.

crypto_prices_preview

FREE 1-item sample of live token prices. No payment required.

crypto_funding_preview

FREE 1-item sample of live cross-venue funding rates. No payment required.

defi_yields_preview

FREE 1-item sample of live DeFi yield pools. No payment required.

pm_markets_preview

FREE top-1 sample of live Polymarket prediction markets, ranked by volume24hr. No payment required.

chain_block_number

Current Base mainnet block number via multi-provider JSON-RPC (automatic failover across 4 providers, never fails on one provider's rate limit). Cost: $0.005 USDC per call via x402.

chain_gas_price

Current Base mainnet gas price (wei/gwei), EIP-1559 base_fee_gwei/priority_fee_gwei, and gas_price_usd (ETH price cross-call — no price oracle on ETH-only competitors) via multi-provider JSON-RPC. Cost: $0.005 USDC per call via x402.

chain_balance

Native ETH balance of a Base mainnet address, incl. balance_usd (ETH price cross-call — no price oracle on ETH-only competitors), via multi-provider JSON-RPC. Cost: $0.005 USDC per call via x402.

chain_token_balance

ERC-20 token balance of a Base mainnet address via multi-provider JSON-RPC, incl. symbol/decimals/balance_formatted (per-token-contract cached in-isolate). Cost: $0.005 USDC per call via x402.

chain_tx

Transaction details by hash on Base mainnet via multi-provider JSON-RPC. Cost: $0.005 USDC per call via x402.

chain_wallet

Wallet bundle: ETH balance + balance_usd (ETH price cross-call) + tx count + contract-code check (EIP-7702 delegated-EOA aware) for a Base mainnet address, in one call. Cost: $0.005 USDC per call via x402.

chain_token_security

Token security / honeypot detector for a Base mainnet ERC-20: EIP-1967/1822 proxy + upgradeability detection, bytecode dispatcher scan for mint/pause/blacklist/fee-setter/ownership selectors, owner() renouncement check, and a live eth_call state-override simulation testing whether a synthetic wallet…

chain_block_number_preview

FREE live sample of the current Base mainnet block number — identical data to the paid chain_block_number tool. No payment required.

chain_gas_price_preview

FREE live sample of the current Base mainnet gas price — identical data to the paid chain_gas_price tool. No payment required.

chain_token_security_preview

FREE full real analysis of a fixed well-known token (Base WETH) via the token security / honeypot detector — same depth as the paid chain_token_security tool, so you can see the real product before paying. To analyze an arbitrary token, use the paid chain_token_security tool. No payment required.

// known CVEs in dependencies5 high25 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

highhono@4.7.11GHSA-3vhc-576x-3qv4

Hono JWK Auth Middleware has JWT algorithm confusion when JWK lacks "alg" (untrusted header.alg fallback)

highhono@4.7.11GHSA-88fw-hqm2-52qc

hono: CORS Middleware reflects any Origin with credentials when `origin` defaults to the wildcard

highhono@4.7.11GHSA-f67f-6cw9-8mq4

Hono JWT Middleware's JWT Algorithm Confusion via Unsafe Default (HS256) Allows Token Forgery and Auth Bypass

highhono@4.7.11GHSA-m732-5p4w-x69g

Hono Improper Authorization vulnerability

highhono@4.7.11GHSA-q5qw-h33p-qvwr

Hono vulnerable to arbitrary file access via serveStatic vulnerability

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// 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

22/22 tools missing one or more hints — enrich_tech_risk (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); enrich_domain (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); scan_mcp_server (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +19 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 inputs are validated

13/22 tool handlers declare input schemas (59%)

Declare an inputSchema with zod/joi/yup on every tool definition.

Tests exist

No test files found

Add tests that exercise each declared tool.

Production dependencies are patched

0 critical, 5 high severity in production deps — hono@4.7.11 (high), hono@4.7.11 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

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 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
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commit: ffbf3fc88ecb1bb4e6830da8d223497eb91e8416
code hash: 40b545cf5f5e363bbabf02f794effb684a1b15f5277d05e018cb7f8335eebb89
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