Skip to content

CanaryGuard 402

by ak10082247-max · remote · no sign-in to list tools · v1.0.2 · published by GitHub user ak10082247-max

Deterministic prompt-injection detection & sanitization for AI agents via x402 on Base.

Final · 2Changes · 12

28 tools: 2 do something that can't be undone, 12 change things and 14 only read.

Scanned Oct 21, 2026

4 checks matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http canaryguard-402 https://canaryguard-402.onrender.com/mcp

Findings

Matches of fixed checks, with the text they matched.

4 warn
  • The server marks "getPolymarketVerifiedOdds" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}; The name "getPolymarketVerifiedOdds" says "get": a word for reading.

    What this check looks for
  • The server marks "runFullEnterpriseRiskAudit" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}; The name "runFullEnterpriseRiskAudit" says "run": a word for a change.

    What this check looks for
  • The server marks "verifyAgentAttestation" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}; The description's first verb is "generate": a word for a change.

    What this check looks for
  • The server marks "getPolymarketOddsPulse" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}; The name "getPolymarketOddsPulse" says "get": a word for reading.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

28 tools

Can't be undone 2Claude Code: ask
  • getPolymarketOddsPulseDelivers sanitized Polymarket CLOB implied probabilities, bid-ask spreads, and 24-hour smart-money volume movers across crypto, macro, and geopolitics.1 finding

    Why it is in this group

    • The name "getPolymarketOddsPulse" says "get": a word for reading.
    • The description's first verb is "deliver": a word for sending, and what is sent cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "getPolymarketOddsPulse" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}; The name "getPolymarketOddsPulse" says "get": a word for reading.

      What this check looks for
    Description, as the server wrote it
    Delivers sanitized Polymarket CLOB implied probabilities, bid-ask spreads, and 24-hour smart-money volume movers across crypto, macro, and geopolitics. Price: 0.010 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • getPolymarketVerifiedOddsDelivers CanaryGuard-sanitized Polymarket CLOB implied probabilities, bid-ask spread depth, and smart-money orderbook skew across high-volume markets.1 finding

    Why it is in this group

    • The name "getPolymarketVerifiedOdds" says "get": a word for reading.
    • The description's first verb is "deliver": a word for sending, and what is sent cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "getPolymarketVerifiedOdds" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}; The name "getPolymarketVerifiedOdds" says "get": a word for reading.

      What this check looks for
    Description, as the server wrote it
    Delivers CanaryGuard-sanitized Polymarket CLOB implied probabilities, bid-ask spread depth, and smart-money orderbook skew across high-volume markets. Price: 0.02 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
Changes things 12Claude Code: ask
  • auditEip712SignatureAudits EIP-712 and EIP-3009 typed-data signature payloads (Permit, Permit2, transferWithAuthorization) to block malicious spender approvals and phishing domains.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Audits EIP-712 and EIP-3009 typed-data signature payloads (Permit, Permit2, transferWithAuthorization) to block malicious spender approvals and phishing domains. Price: 0.010 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • auditEip712SignaturePayloadAudits EIP-712 and EIP-3009 typed-data signature payloads (Permit, Permit2, transferWithAuthorization) to prevent unauthorized token approvals and replay attacks.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Audits EIP-712 and EIP-3009 typed-data signature payloads (Permit, Permit2, transferWithAuthorization) to prevent unauthorized token approvals and replay attacks. Price: 0.02 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • auditUrlAgentReadinessAudits any domain or URL for AI agent readiness (llms.txt, .well-known/x402, openapi.json, MCP server card) and detects hidden CSS/DOM prompt-injection traps.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Audits any domain or URL for AI agent readiness (llms.txt, .well-known/x402, openapi.json, MCP server card) and detects hidden CSS/DOM prompt-injection traps. Price: 0.010 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • calculateLlmTokenPricingCalculates exact input, cached-input, and output token costs across frontier LLMs (OpenAI, Anthropic, Gemini, DeepSeek, Meta) and recommends optimal model routing.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Calculates exact input, cached-input, and output token costs across frontier LLMs (OpenAI, Anthropic, Gemini, DeepSeek, Meta) and recommends optimal model routing. Price: 0.010 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • canary_sanitizeDeterministic prompt-injection firewall and honeypot scrubber for AI agents.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Deterministic prompt-injection firewall and honeypot scrubber for AI agents. Sanitizes untrusted text and blocks detected wallet-draining commands before context ingestion. Price: 0.010 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • checkSmartContractHoneypotAudits Base smart contracts for hidden transfer locks, owner blacklist modifiers, unverified proxy upgrades, and malicious fee-on-transfer hooks.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Audits Base smart contracts for hidden transfer locks, owner blacklist modifiers, unverified proxy upgrades, and malicious fee-on-transfer hooks. Price: 0.02 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • checkWalletDrainerAudits EVM wallet and counterparty addresses on Base for Permit2 drainer exposure, approval phishing history, and OFAC sanctions flags.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Audits EVM wallet and counterparty addresses on Base for Permit2 drainer exposure, approval phishing history, and OFAC sanctions flags. Price: 0.02 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • checkWalletSanctionsScreens EVM and Solana wallet addresses against OFAC SDN sanctions lists, Lazarus Group attributions, and known DeFi exploit/drainer blacklists.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Screens EVM and Solana wallet addresses against OFAC SDN sanctions lists, Lazarus Group attributions, and known DeFi exploit/drainer blacklists. Price: 0.010 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • guardAgentMemoryScans RAG context chunks, vector DB retrievals, and persistent agent memory payloads for delayed sleeper-agent instructions and cross-session poisoning.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Scans RAG context chunks, vector DB retrievals, and persistent agent memory payloads for delayed sleeper-agent instructions and cross-session poisoning. Price: 0.02 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • repairAndSanitizeJsonDeterministically repairs malformed or truncated LLM JSON payloads (missing quotes, trailing commas, markdown fences) while scrubbing embedded prompt-injection payloads.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Deterministically repairs malformed or truncated LLM JSON payloads (missing quotes, trailing commas, markdown fences) while scrubbing embedded prompt-injection payloads. Price: 0.010 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • runFullEnterpriseRiskAuditEnterprise 360-degree security audit bundle combining Base bytecode/proxy inspection, DEX liquidity rug-risk analysis, OFAC/Lazarus sanctions screening, EIP-712 permit verification…1 finding

    Why it is in this group

    • The name "runFullEnterpriseRiskAudit" says "run": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "runFullEnterpriseRiskAudit" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}; The name "runFullEnterpriseRiskAudit" says "run": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Enterprise 360-degree security audit bundle combining Base bytecode/proxy inspection, DEX liquidity rug-risk analysis, OFAC/Lazarus sanctions screening, EIP-712 permit verification, and deterministic prompt-injection firewalling. Price: 0.020 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • verifyAgentAttestationGenerates a cryptographic attestation report verifying an autonomous AI agent wallet, x402 EIP-3009 payment capability, counterparty reputation score, and zero-drainer history on B…1 finding

    Why it is in this group

    • The description's first verb is "generate": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "verifyAgentAttestation" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}; The description's first verb is "generate": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Generates a cryptographic attestation report verifying an autonomous AI agent wallet, x402 EIP-3009 payment capability, counterparty reputation score, and zero-drainer history on Base. Price: 0.020 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
Only reads 14Claude Code: allow
  • analyzeEvmWalletComprehensive EVM wallet security profile on Base, analyzing transaction velocity, approval exposure, drainer interaction risk, and smart-account state.No findings

    Why it is in this group

    • The name "analyzeEvmWallet" says "analyze": a word for reading.
    Description, as the server wrote it
    Comprehensive EVM wallet security profile on Base, analyzing transaction velocity, approval exposure, drainer interaction risk, and smart-account state. Price: 0.010 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • auditMcpToolPoisoningInspects Model Context Protocol (MCP) tool definitions, descriptions, and JSON schemas for hidden prompt overrides, shadowing attacks, and exfiltration sinks.No findings

    Why it is in this group

    • The description's first verb is "inspect": a word for reading.
    Description, as the server wrote it
    Inspects Model Context Protocol (MCP) tool definitions, descriptions, and JSON schemas for hidden prompt overrides, shadowing attacks, and exfiltration sinks. Price: 0.02 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • auditMcpToolSchemaInspects Model Context Protocol (MCP) tool definitions, JSON schemas, and server cards for hidden instructions, tool shadowing, and data exfiltration vectors.No findings

    Why it is in this group

    • The description's first verb is "inspect": a word for reading.
    Description, as the server wrote it
    Inspects Model Context Protocol (MCP) tool definitions, JSON schemas, and server cards for hidden instructions, tool shadowing, and data exfiltration vectors. Price: 0.010 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • decodeBaseTxStatusDecodes Base Mainnet transaction receipts, EIP-3009 transferWithAuthorization settlements, ERC-20 transfer logs, gas fees, and finality confirmations.No findings

    Why it is in this group

    • The name "decodeBaseTxStatus" says "status": a word for reading.
    Description, as the server wrote it
    Decodes Base Mainnet transaction receipts, EIP-3009 transferWithAuthorization settlements, ERC-20 transfer logs, gas fees, and finality confirmations. Price: 0.010 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • getCryptoPriceOnchainReturns tamper-resistant on-chain USD spot prices, 24h volatility, and Chainlink/TWAP oracle deviation metrics for major Base and EVM assets.No findings

    Why it is in this group

    • The name "getCryptoPriceOnchain" says "get": a word for reading.
    Description, as the server wrote it
    Returns tamper-resistant on-chain USD spot prices, 24h volatility, and Chainlink/TWAP oracle deviation metrics for major Base and EVM assets. Price: 0.010 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • getOndemandMarketSnapshotOn-demand institutional market intelligence snapshot combining Base DEX spot & TWAP prices, Aerodrome/Uniswap V3 liquidity depth, perpetual funding rates, and Polymarket whale orde…No findings

    Why it is in this group

    • The name "getOndemandMarketSnapshot" says "get": a word for reading.
    Description, as the server wrote it
    On-demand institutional market intelligence snapshot combining Base DEX spot & TWAP prices, Aerodrome/Uniswap V3 liquidity depth, perpetual funding rates, and Polymarket whale orderbook divergence. Price: 0.020 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • getSafeBaseTrendingReturns top Base Mainnet tokens by 24h DEX volume and liquidity velocity that pass CanaryGuard zero-honeypot and prompt-injection safety gates.No findings

    Why it is in this group

    • The name "getSafeBaseTrending" says "get": a word for reading.
    Description, as the server wrote it
    Returns top Base Mainnet tokens by 24h DEX volume and liquidity velocity that pass CanaryGuard zero-honeypot and prompt-injection safety gates. Price: 0.02 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • getSafeDefiYieldsCurates top risk-adjusted USDC, EURC, and WETH DeFi yield pools on Base (Morpho, Aave V3, Aerodrome, Moonwell), pre-screened for TVL depth and audit status.No findings

    Why it is in this group

    • The name "getSafeDefiYields" says "get": a word for reading.
    Description, as the server wrote it
    Curates top risk-adjusted USDC, EURC, and WETH DeFi yield pools on Base (Morpho, Aave V3, Aerodrome, Moonwell), pre-screened for TVL depth and audit status. Price: 0.010 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • getSafeYieldAllocationComputes an institutional risk-adjusted DeFi capital allocation matrix across multi-audited Base and Arbitrum liquidity vaults (Morpho Blue, Aave V3, Moonwell, Aerodrome) with smar…No findings

    Why it is in this group

    • The name "getSafeYieldAllocation" says "get": a word for reading.
    Description, as the server wrote it
    Computes an institutional risk-adjusted DeFi capital allocation matrix across multi-audited Base and Arbitrum liquidity vaults (Morpho Blue, Aave V3, Moonwell, Aerodrome) with smart-contract timelock and depeg stress scores. Price: 0.020 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • getTokenHistoryAndSpreadReturns multi-timeframe Base token price history (1h, 24h, 7d, 30d OHLCV summary), Chainlink vs.No findings

    Why it is in this group

    • The name "getTokenHistoryAndSpread" says "get": a word for reading.
    Description, as the server wrote it
    Returns multi-timeframe Base token price history (1h, 24h, 7d, 30d OHLCV summary), Chainlink vs. Uniswap V3/Aerodrome bid-ask spread in bps, and realized volatility skew. Price: 0.020 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • inspectBaseTokenAudits Base ERC-20 token contracts for honeypot risks, buy/sell transfer taxes, liquidity depth, and prompt injection traps in token metadata.No findings

    Why it is in this group

    • The name "inspectBaseToken" says "inspect": a word for reading.
    Description, as the server wrote it
    Audits Base ERC-20 token contracts for honeypot risks, buy/sell transfer taxes, liquidity depth, and prompt injection traps in token metadata. Price: 0.010 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • inspectContractInfoInspects Base EVM smart contract bytecode size, EIP-1967/UUPS proxy implementation slots, EIP-7702 delegation designators, and verified function selectors.No findings

    Why it is in this group

    • The name "inspectContractInfo" says "inspect": a word for reading.
    Description, as the server wrote it
    Inspects Base EVM smart contract bytecode size, EIP-1967/UUPS proxy implementation slots, EIP-7702 delegation designators, and verified function selectors. Price: 0.010 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • inspectPhishingUrlAudits target URLs, API endpoints, and Web3 dApp domains for IDN homograph spoofing, Angel/Pink/Inferno drainer scripts, and hidden DOM prompt injections.No findings

    Why it is in this group

    • The name "inspectPhishingUrl" says "inspect": a word for reading.
    Description, as the server wrote it
    Audits target URLs, API endpoints, and Web3 dApp domains for IDN homograph spoofing, Angel/Pink/Inferno drainer scripts, and hidden DOM prompt injections. Price: 0.02 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • inspectUniswapPoolStateAudits Uniswap V3/V4 and Aerodrome liquidity pools on Base, returning tick liquidity depth, fee tier, price impact bps, and LP concentration rug-risk scores.No findings

    Why it is in this group

    • The name "inspectUniswapPoolState" says "inspect": a word for reading.
    Description, as the server wrote it
    Audits Uniswap V3/V4 and Aerodrome liquidity pools on Base, returning tick liquidity depth, fee tier, price impact bps, and LP concentration rug-risk scores. Price: 0.010 USDC on Base.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.2. Values in angle brackets are yours to fill in.

claude mcp add --transport http canaryguard-402 https://canaryguard-402.onrender.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__canaryguard-402__inspectBaseToken",
      "mcp__canaryguard-402__auditMcpToolPoisoning",
      "mcp__canaryguard-402__inspectPhishingUrl",
      "mcp__canaryguard-402__getSafeBaseTrending",
      "mcp__canaryguard-402__getOndemandMarketSnapshot",
      "mcp__canaryguard-402__getTokenHistoryAndSpread",
      "mcp__canaryguard-402__getSafeYieldAllocation",
      "mcp__canaryguard-402__analyzeEvmWallet",
      "mcp__canaryguard-402__inspectContractInfo",
      "mcp__canaryguard-402__inspectUniswapPoolState",
      "mcp__canaryguard-402__getCryptoPriceOnchain",
      "mcp__canaryguard-402__decodeBaseTxStatus",
      "mcp__canaryguard-402__getSafeDefiYields",
      "mcp__canaryguard-402__auditMcpToolSchema"
    ],
    "ask": [
      "mcp__canaryguard-402__canary_sanitize",
      "mcp__canaryguard-402__checkWalletDrainer",
      "mcp__canaryguard-402__guardAgentMemory",
      "mcp__canaryguard-402__checkSmartContractHoneypot",
      "mcp__canaryguard-402__auditEip712SignaturePayload",
      "mcp__canaryguard-402__getPolymarketVerifiedOdds",
      "mcp__canaryguard-402__runFullEnterpriseRiskAudit",
      "mcp__canaryguard-402__verifyAgentAttestation",
      "mcp__canaryguard-402__checkWalletSanctions",
      "mcp__canaryguard-402__repairAndSanitizeJson",
      "mcp__canaryguard-402__auditUrlAgentReadiness",
      "mcp__canaryguard-402__getPolymarketOddsPulse",
      "mcp__canaryguard-402__calculateLlmTokenPricing",
      "mcp__canaryguard-402__auditEip712Signature"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as canaryguard-402. Review it before you use it.