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Pay-per-call USDC tools via x402/Base: company and wallet enrichment, web content reading, and repository scanning.
Do not connect
A critical issue was found. Do not connect this server as-is.
Scanned 29 days ago Due for re-check
A server can change after it's graded. Re-run the automated scan to refresh this report.
This grade is deterministic and reproducible: the same server surface always yields the same grade under a given algorithm version. It is a real automated assessment computed by the MCPGrade engine from what the probe actually observed — not a fabricated or opinion score. It is not a manual human pentest, so it can miss context-specific risks.
Every signal below was measured directly by the automated probe. The grade is derived only from evidence like this — nothing is assumed.
The x402-data-gateway MCP server exposes 22 tools, focused primarily on database capabilities. Its published description reads: "Pay-per-call USDC tools via x402/Base: company and wallet enrichment, web content reading, and repository scanning". It communicates over Streamable HTTP using the 2025-06-18 protocol revision, and does not require authorization to connect. MCPGrade currently rates x402-data-gateway F — a critical issue was found and the server should not be connected as-is. Its most notable findings include "Data-exfiltration parameters" and "Cross-tool shadowing". This report is a deterministic, reproducible automated assessment: the same observed surface always yields the same grade under a given algorithm version, and it is refreshed as new scans arrive and free to read — but it is not a substitute for a manual human security review. Always re-check x402-data-gateway's advertised tools, transport security, and authorization posture before connecting an autonomous agent or sharing sensitive context with it.
Add x402-data-gateway to an MCP client using the endpoint below. Review the grade and findings above before granting an autonomous agent access.
MCP endpoint
https://x402-url-extractor-production.up.railway.app/mcpStreamable HTTP transport. This is the MCP endpoint, not a website — paste it into your MCP client server list rather than a browser.
Captured passively during the read-only scan. Click any value to find servers that match it.
The tools this server advertises via tools/list — names, purposes, and the parameters each accepts, exactly as enumerated read-only.
Fetch a public HTTP(S) page and return compact extraction signals for programmatic inspection: title, meta description, Open Graph/Twitter metadata, JSON-LD, headings, links, text excerpt, and AI-read
Fetch a public HTTP(S) page and return its readable body as cleaned Markdown for LLM context, preserving headings, links, and lists while dropping navigation, ads, scripts, headers, footers, asides, a
Static supply-chain security scan of a public GitHub repo before an agent installs/runs it. Flags exfil sinks, obfuscation, credential reads, install-time curl|bash. risk=clean|suspicious|dangerous.
Analyze a public business site and return a deterministic, paste-ready JSON-LD template plus the live structured-data gap diff and ranked fixes. Use `deep_audit` instead when the same call must also r
Sorted worst-first. Each finding shows its severity, what it means, its OWASP MCP Top-10 mapping, and a recommended fix — the check id links to the exact methodology row that produced it.
tool: extract
A tool exposes a free-text/webhook/feedback parameter with no honest purpose — a classic exfil channel.
parameter "url"RecommendationRemove side-channel parameters; constrain tool inputs.
tool: extract
A tool description tries to alter the model’s use of another tool.
ess flags. Use `read` instead when you need the page body as LLM-reaRecommendationDescriptions must describe only their own tool.
tool: read
A tool exposes a free-text/webhook/feedback parameter with no honest purpose — a classic exfil channel.
parameter "url"RecommendationRemove side-channel parameters; constrain tool inputs.
tool: read
A tool description tries to alter the model’s use of another tool.
and forms. Use `extract` instead when you need metadata, JSON-LD, OpenRecommendationDescriptions must describe only their own tool.
tool: scan
Tools that execute commands / write files / make arbitrary requests are exposed without annotations or guards.
stall-time curl|bash. risk=clean|suspicious|dangerous. {"type":"objeRecommendationAnnotate destructive tools and require human approval.
tool: schemaforge
A tool description tries to alter the model’s use of another tool.
ked fixes. Use `deep_audit` instead when the same call must also return coRecommendationDescriptions must describe only their own tool.
tool: enrich
A tool description tries to alter the model’s use of another tool.
evidence. Use `schemaforge` instead for a paste-ready JSON-LD template andRecommendationDescriptions must describe only their own tool.
tool: wallet_enrich
A tool description tries to alter the model’s use of another tool.
erent evidence. Read-only public chain data; no wallet action or cusRecommendationDescriptions must describe only their own tool.
tool: deep_audit
A tool description tries to alter the model’s use of another tool.
Run one read-only AI-search-readiness audit for a public busRecommendationDescriptions must describe only their own tool.
tool: morpho_position
A tool description tries to alter the model’s use of another tool.
storical event. Read-only; no wallet, signing, broadcast, or custodyRecommendationDescriptions must describe only their own tool.
tool: morpho_protection
A tool description tries to alter the model’s use of another tool.
storical event. Read-only; no wallet, signing, broadcast, or custodyRecommendationDescriptions must describe only their own tool.
tool: morpho_market_underwrite
A tool description tries to alter the model’s use of another tool.
storical event. Read-only evidence with explicit disagreements; no oRecommendationDescriptions must describe only their own tool.
tool: morpho_preliquidation_replay
A tool description tries to alter the model’s use of another tool.
lan. Historical read-only evidence; no transaction simulation, walleRecommendationDescriptions must describe only their own tool.
tool: payment_offer_preflight
A tool exposes a free-text/webhook/feedback parameter with no honest purpose — a classic exfil channel.
parameter "url"RecommendationRemove side-channel parameters; constrain tool inputs.
tool: payment_offer_preflight
A tool description tries to alter the model’s use of another tool.
evidence. Use `agent_discoverability_audit` instead when you need to know whether catalogsRecommendationDescriptions must describe only their own tool.
tool: seller_integrity_audit
A tool exposes a free-text/webhook/feedback parameter with no honest purpose — a classic exfil channel.
nstructible non-secret input, exact request binding, live x402 and MPPRecommendationRemove side-channel parameters; constrain tool inputs.
tool: seller_integrity_audit
A tool description tries to alter the model’s use of another tool.
horization, or `agent_discoverability_audit` for catalog rank and identity. Uses no targetRecommendationDescriptions must describe only their own tool.
tool: contract_qualified_search
A tool exposes a free-text/webhook/feedback parameter with no honest purpose — a classic exfil channel.
audit, uses no credential or wallet, sends no seller POST or target paymeRecommendationRemove side-channel parameters; constrain tool inputs.
tool: contract_qualified_search
A tool description tries to alter the model’s use of another tool.
nse paths. Use `agent_discoverability_audit` when you are measuring one known seller's cataRecommendationDescriptions must describe only their own tool.
tool: agent_surface_budget_audit
A tool exposes a free-text/webhook/feedback parameter with no honest purpose — a classic exfil channel.
ublic service's credential-free MCP tools/list, OpenAPI, or both declaredRecommendationRemove side-channel parameters; constrain tool inputs.
tool: agent_surface_budget_audit
A tool description tries to alter the model’s use of another tool.
t payment. Use `agent_discoverability_audit` for catalog reach and rank, `seller_integrity_RecommendationDescriptions must describe only their own tool.
tool: agent_surface_budget_audit
The text tells the model WHEN to call this tool relative to others ("always call first", "before any other tool", "chain to X tool") — a toxic-flow injection that hijacks the agent’s orchestration rather than describing the tool.
covery surfaces before any tool call or target payment. Use `agent_discoverabilRecommendationTool metadata must describe only the tool, never sequence the agent’s calls.
tool: settlement_proof
A tool description tries to alter the model’s use of another tool.
nal payer. Use `payment_offer_preflight` before authorization when you need to inspectRecommendationDescriptions must describe only their own tool.
tool: transaction_receipt
A tool description tries to alter the model’s use of another tool.
transfers. Use `settlement_proof` instead when you must verify an exact canonicaRecommendationDescriptions must describe only their own tool.
tool: solana_transaction_receipt
A tool description tries to alter the model’s use of another tool.
verified; use `transaction_receipt` for Base or Ethereum. Raw instructions and logRecommendationDescriptions must describe only their own tool.
tool: stateful_wallet_policy_conformance
A tool description tries to alter the model’s use of another tool.
requests. Use `wallet_policy_conformance` instead for one-request action shape, method,RecommendationDescriptions must describe only their own tool.
The server accepts tool enumeration (and likely invocation) with no authentication.
RecommendationRequire OAuth 2.1 authorization for any server exposing non-public tools.
tool: extract
The server advertises open-world / broadly-scoped capabilities.
no annotations on write-capable tool "extract"RecommendationScope tools to the minimum needed.
tool: agent_discoverability_audit
The server advertises open-world / broadly-scoped capabilities.
no annotations on write-capable tool "agent_discoverability_audit"RecommendationScope tools to the minimum needed.
tool: seller_integrity_audit
The server advertises open-world / broadly-scoped capabilities.
no annotations on write-capable tool "seller_integrity_audit"RecommendationScope tools to the minimum needed.
tool: contract_qualified_search
The server advertises open-world / broadly-scoped capabilities.
no annotations on write-capable tool "contract_qualified_search"RecommendationScope tools to the minimum needed.
tool: agent_surface_budget_audit
The server advertises open-world / broadly-scoped capabilities.
no annotations on write-capable tool "agent_surface_budget_audit"RecommendationScope tools to the minimum needed.
Vantaj uptime monitoring via MCP — manage monitors, heartbeats, incidents, and status pages.
Unified gateway to Algeria's TKAWEN ecosystem: commerce, certification, and AI tools.
Provides access to the Cohereon Doctrine AI safety framework with governance components, tiered access, and agent onboarding.
Agentic rails for complex workflows with receipts, fees, and MCP tool access.
Structural TC39 spec lookup for ECMA-262 and ECMA-402 in AI agents, SHA-pinned and offline-first.
Structural TC39 spec lookup for ECMA-262 and ECMA-402 in AI agents, SHA-pinned and offline-first.
Inspect a public company domain and return structured identity, technology, social, contact, DNS, email-infrastructure, and AI-readiness evidence. Use `schemaforge` instead for a paste-ready JSON-LD t
Inspect a public Base or EVM address and return an agent-ready on-chain profile: EOA or contract type, native and curated token holdings, token/NFT metadata, proxy evidence, activity, and a derived pr
Run one read-only AI-search-readiness audit for a public business domain: company, technology, contact, and DNS/email evidence from `enrich`, plus the live structured-data gap analysis and paste-ready
Inspect one Base borrower across Morpho markets and return position balances, LTV, health factor, liquidation headroom, direct-RPC verification, and caller-selected collateral-price stress scenarios.
Calculate two alternative protection plans for one Base Morpho borrower under a selected collateral-price shock and target health factor: partial repayment or added collateral. Each plan includes the
Underwrite one Base Morpho market with independent GraphQL, REST, and direct-RPC evidence for configuration integrity, liquidity, utilization, concentration, borrower health bands, recent history, bad
Reconstruct one successful Base Morpho PreLiquidation transaction from its receipt and the exact block state, returning repaid and seized assets, protocol-oracle valuation, gross incentive, configured
Agent work opportunity -> deterministic attempt, verify-first, or abandon preflight using caller-supplied cost and selection assumptions plus dated platform evidence. Returns break-even probability, e
Measure one service's brand-blind rank, source-family coverage, expected-route presence, canonical-vs-alias listing identity, duplicate records, competitors, and exact-price drift across ten public ma
Compare x402 and MPP payment challenges, terms, and seller-declared JSON success-response readiness for one exact public HTTPS GET route before buyer authorization, including URL and realm binding, ex
Audit one exact paid GET or POST seller route against buyer-required JSON success paths. GET verifies constructible non-secret input, exact request binding, live x402 and MPP economics, and optional B
Search Agent402 and the official MPP catalog for paid machine services that both match a capability intent and guarantee buyer-required JSON response paths. Use `agent_discoverability_audit` when you
Measure one public service's credential-free MCP tools/list, OpenAPI, or both declared discovery surfaces before any tool call or target payment. Use `agent_discoverability_audit` for catalog reach an
Verify one claimed canonical Base USDC settlement after execution by matching a successful transaction receipt to the exact recipient, atomic amount, and optional payer. Use `payment_offer_preflight`
Inspect one Base or Ethereum transaction hash and return normalized success or revert status, block time, gas and fee fields, decoded ERC-20 Transfer events, and canonical USDC transfers. Use `settlem
Inspect one finalized Solana mainnet transaction signature and return normalized success or failure status, slot, block time, fee, SPL-token owner deltas, and canonical USDC deltas. Supply recipient,
Evaluate safe standardized allow, deny, and error observations from an agent wallet or delegated signer. Use this after running a bounded provider policy test matrix to distinguish explicit provider-p
Evaluate safe standardized observations from wallet policies that track prior or concurrent requests. Use `wallet_policy_conformance` instead for one-request action shape, method, chain, token, recipi