Summary
This is a blockchain development toolkit that connects Claude to an 8-agent AI system for smart contract work. It handles security audits, contract generation, and compilation across 8 different blockchain networks. You'd reach for this when you need to quickly prototype or audit contracts without manually juggling multiple chain-specific toolchains and security checkers. The multi-agent approach means you get several AI perspectives on potential vulnerabilities rather than a single pass. Based on the naming, it likely supports major EVM chains plus a few others, though the specific networks aren't listed in the available details. Most useful when you're doing cross-chain development or want automated security reviews before deployment.
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Tools
Public tool metadata for what this MCP can expose to an agent.
7 tools
pentagonal_lookupOne-stop token intelligence. Returns price, market cap, ATH, 24h volume, transactions, holders, liquidity, LP lock status, security flags (honeypot, mintable, pausable, taxes), socials, and verified source code for any token by contract address. Supports Ethereum, Solana, Poly...3 params
One-stop token intelligence. Returns price, market cap, ATH, 24h volume, transactions, holders, liquidity, LP lock status, security flags (honeypot, mintable, pausable, taxes), socials, and verified source code for any token by contract address. Supports Ethereum, Solana, Poly...
Parameters* required
chainstringone of
ethereum · polygon · arbitrum · base · optimism · bscdefault: ethereumfieldsarrayWhich sections to return. Use specific fields for faster queries.
addressstringContract address (EVM 0x... or Solana base58)
pentagonal_auditRun a full 8-agent security pen test on a smart contract. Agents specialize in reentrancy, flash loans, access control, gas griefing, oracle manipulation, MEV/front-running, integer overflow, and economic exploits. Returns findings grouped by severity (Critical → High → Medium...3 params
Run a full 8-agent security pen test on a smart contract. Agents specialize in reentrancy, flash loans, access control, gas griefing, oracle manipulation, MEV/front-running, integer overflow, and economic exploits. Returns findings grouped by severity (Critical → High → Medium...
Parameters* required
codestringSolidity or Anchor/Rust smart contract source code
chainstringone of
ethereum · polygon · arbitrum · base · optimism · bscdefault: ethereumuse_learned_rulesbooleanApply accumulated security rules from past auditsdefault: true
pentagonal_generateGenerate a production-quality smart contract from a natural language description. Supports EVM (Solidity/OpenZeppelin) and Solana (Anchor/Rust programs or SPL token configs). Uses self-learning security rules from past audits.4 params
Generate a production-quality smart contract from a natural language description. Supports EVM (Solidity/OpenZeppelin) and Solana (Anchor/Rust programs or SPL token configs). Uses self-learning security rules from past audits.
Parameters* required
chainstringone of
ethereum · polygon · arbitrum · base · optimism · bscdefault: ethereumpromptstringNatural language description of the contract
solana_typestringSolana only: program (Anchor/Rust) or token (SPL config)one of
program · tokenuse_learned_rulesbooleandefault: true
pentagonal_fixFix a specific vulnerability in a smart contract while preserving all existing functionality. Call once per finding, starting with critical severity.3 params
Fix a specific vulnerability in a smart contract while preserving all existing functionality. Call once per finding, starting with critical severity.
Parameters* required
codestringSmart contract source code containing the vulnerability
finding_titlestringTitle of the finding from the audit report
finding_descriptionstringDescription of the vulnerability and its impact
pentagonal_compileCompile Solidity source code to ABI, bytecode, constructor arguments, and gas estimates. Returns everything needed for deployment with Foundry, Hardhat, or cast.2 params
Compile Solidity source code to ABI, bytecode, constructor arguments, and gas estimates. Returns everything needed for deployment with Foundry, Hardhat, or cast.
Parameters* required
codestringSolidity source code to compile
contract_namestringSpecific contract name to extract (defaults to first found)
pentagonal_rulesView the accumulated security rules knowledge base. Pentagonal learns from every audit and extracts generalizable rules. Check this to see the current state of the self-learning system.
View the accumulated security rules knowledge base. Pentagonal learns from every audit and extracts generalizable rules. Check this to see the current state of the self-learning system.
No parameter schema in public metadata yet.
pentagonal_chainsList all supported blockchains with chain IDs, explorer URLs, and deployment details.
List all supported blockchains with chain IDs, explorer URLs, and deployment details.
No parameter schema in public metadata yet.
Pentagonal
AI-powered smart contract forge with an 8-agent adversarial security audit system.
Generate, audit, fix, and compile Solidity and Anchor/Rust contracts across 8 chains including Ethereum, Base, Polygon, Arbitrum, Optimism, BSC, Avalanche, and Solana. Includes token intelligence lookups with market data, holder analysis, and honeypot detection. Self-learning security rules engine that improves with every audit.
MCP Server
Install via npm:
npx pentagonal-mcp
Claude Desktop
Add to claude_desktop_config.json:
{
"mcpServers": {
"pentagonal": {
"command": "npx",
"args": ["-y", "pentagonal-mcp"],
"env": {
"PENTAGONAL_KEY": "your-api-key"
}
}
}
}
HTTP (Claude Code / Cursor / Windsurf)
{
"mcpServers": {
"pentagonal": {
"type": "http",
"url": "https://www.pentagonal.ai/api/mcp",
"headers": {
"x-pentagonal-api-key": "your-api-key"
}
}
}
}
Tools
| Tool | Description | Auth |
|---|---|---|
pentagonal_lookup | Token intelligence — price, holders, LP lock, honeypot, source code | Free (rate limited) |
pentagonal_audit | 8-agent security pen test with severity grouping and PoC exploits | $5 (credit or x402) |
pentagonal_generate | Generate contracts from natural language (Solidity + Anchor/Rust) | $5 (credit or x402) |
pentagonal_fix | Fix a specific vulnerability while preserving functionality | Free (rate limited) |
pentagonal_compile | Compile Solidity to ABI + bytecode + gas estimates | Free (rate limited) |
pentagonal_rules | View accumulated self-learning security rules | Free |
pentagonal_chains | List all supported blockchains | Free |
Payment
- Credits — $5 per audit or generate, buy via the web app (EVM or Solana)
- x402 — agents pay per-use with USDC on Base (no account needed)
- API key — use your credit balance programmatically
- Free tools — fix, compile, lookup, rules, chains work for everyone
Links
License
MIT
Featured
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →Configuration
PENTAGONAL_API_KEYsecretPentagonal API key (optional — free tools work without it, paid tools accept x402 USDC on Base)
Categories
Registryactive
Packagepentagonal-mcp
TransportSTDIO
AuthRequired
UpdatedApr 12, 2026
