io.github.zvmzaretsky/crypto-safety MCP Server

This MCP server provides a read-only “crypto safety” toolkit. It focuses on automated token honeypot checks, decoding EIP-712 signatures, and scanning approval-related patterns to help assess common risks in token interactions.

🛠️ Key Features

Token honeypot checks
EIP-712 signature decode
Approval scans

🚀 Use Cases

Reviewing tokens for potential honeypot behavior
Inspecting EIP-712 signatures by decoding their contents
Checking approval flows for safety-relevant patterns

⚡ Developer Benefits

Read-only workflow (no modifications)
Targeted analysis focused on honeypots, EIP-712 decoding, and approvals

⚠️ Limitations

Scope is limited to crypto safety checks described above

FabTally Safe — MCP server

Read-only crypto safety + "what am I signing" verification for AI agents and wallets. Fronts the FabTally Safe HTTP API (https://safe.fabtally.com).

Read-only. Never holds, moves, signs for, or broadcasts funds. No private key. Outputs are descriptive facts from public sources — not financial advice.
8 tools: 4 free teasers + 4 paid (x402, USDC on Base).

Tools

Tool	Tier	What it does
`token_safety`	paid $0.02	Multi-chain token honeypot/rug check — aggregates GoPlus + honeypot.is into a 0-100 risk score with explainable reasons.
`decode_signature`	paid $0.01	"What am I signing" — decode EIP-712 / Permit / Permit2 / Seaport typed-data into plain English + risk flags (unlimited approval, malicious spender, expiry, NFT-drain).
`approvals`	paid $0.01	Wallet approval-risk scan ranked by exposure + address-poisoning "revoke bait" detection + the revoke calldata you execute yourself.
`simulate`	paid $0.02	Keyless pre-sign transaction analysis: eth_call revert check + static delta prediction + risk flags.
`token_safety_free` · `decode_signature_free` · `approvals_free` · `simulate_free`	free	Real teaser results, no wallet.

Chains: ethereum, base, bsc, polygon, arbitrum, optimism (honeypot.is signals on ethereum/base/bsc).

Payment

Paid tools use x402 (USDC on Base, eip155:8453). Call a paid tool with no x_payment to receive the decoded 402 challenge (price, network, asset, payTo); build an x402 authorization and call again with the token in x_payment. Humans can instead prepay by card and use an X-FabTally-Key credit header on the HTTP API.

Transports

stdio (default): node index.js — for Claude Desktop and local MCP clients.
streamable-http: MCP_HTTP_PORT=8113 node http.js — hosted at https://safe.fabtally.com/mcp.

Config

FABTALLY_SAFE_BASE — API base (default https://safe.fabtally.com).

Operator: Sunstone Soft · https://fabtally.com · Not financial advice · read-only.

address	string	required	0x token contract address.
chain	string	required	Chain: ethereum \| base \| bsc \| polygon \| arbitrum \| optimism.
x_payment	string	optional	x402 payment payload (base64) for this PAID tool. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first.

address	string	required	0x token contract address.
chain	string	required	Chain: ethereum \| base \| bsc \| polygon \| arbitrum \| optimism.

typed_data	object	required	EIP-712 typed data object: {domain, types, primaryType, message}.
chain	string	optional	Optional chain override (else read from domain.chainId).
x_payment	string	optional	x402 payment payload (base64) for this PAID tool. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first.

typed_data	object	required	EIP-712 typed data object: {domain, types, primaryType, message}.
chain	string	optional	Optional chain override (else read from domain.chainId).

address	string	required	0x wallet address to scan.
chain	string	required	Chain: ethereum \| base \| bsc \| polygon \| arbitrum \| optimism.
x_payment	string	optional	x402 payment payload (base64) for this PAID tool. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first.

FabTally Safe

io.github.zvmzaretsky/crypto-safety MCP Server

🛠️ Key Features

🚀 Use Cases

⚡ Developer Benefits

⚠️ Limitations

token_safety

token_safety_free

decode_signature

decode_signature_free

approvals

approvals_free

simulate

simulate_free

FabTally Safe — MCP server

Tools

Payment

Transports

Config

Install

Remote endpoint