MCP server

Professor Sausages — On-chain Official

com.professorsausages/sausage-onchain

Checked 28 Oct 2026, 09:03 UTC · Connected to it and listed its tools

EVM gas, Chainlink prices, token-safety, swap quotes, ENS, OFAC & NFT via x402.

Website

At a glance

Type

MCP server

Publisher

professorsausages.com (verified by the MCP Registry)

Status

Working at last check

Tools

12

Token cost

About 3,573 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

28 Oct 2026, 09:03 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http sausage-onchain https://x402.professorsausages.com/mcp/onchain

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.sausage-onchain]
url = "https://x402.professorsausages.com/mcp/onchain"

Gemini CLI

{"mcpServers":{"sausage-onchain":{"httpUrl":"https://x402.professorsausages.com/mcp/onchain"}}}

Cursor

{"mcpServers":{"sausage-onchain":{"url":"https://x402.professorsausages.com/mcp/onchain"}}}

VS Code

{"servers":{"sausage-onchain":{"type":"http","url":"https://x402.professorsausages.com/mcp/onchain"}}}

Antigravity

agy mcp add sausage-onchain https://x402.professorsausages.com/mcp/onchain

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"sausage-onchain","server_url":"https://x402.professorsausages.com/mcp/onchain","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"sausage-onchain","server_url":"https://x402.professorsausages.com/mcp/onchain"}

Tools

• address_screen ~324 tokens
  Screen a crypto address against the full live OFAC SDN list, segmented by chain. Returns a verdict with the matching SDN entries as evidence — never a silent all-clear. Paid: call without x_payment to receive this call's exact terms (amount, asset, network), sign them, then call again with x_payment
• chain_info ~391 tokens
  Canonical record for an EVM chain — name, native currency, explorers, liveness-scored public RPCs. view='rpcs' returns only the ranked, eth_chainId-probed RPC list; view='wallet_config' returns a ready-to-submit EIP-3085 wallet_addEthereumChain object; view='search' finds chains by name or symbol; v
• ens_resolve ~358 tokens
  Resolve an ENS name to an address, or an address to its forward-verified primary name — direction is detected from the input. view='profile' returns the full identity card (multichain addresses, text records, contenthash, avatar); view='avatar' dereferences the avatar to an image URL. Paid: call wit
• gas_compare ~314 tokens
  Rank every supported chain by all-in USD transaction cost — the 'where should I send this' routing decision, with the OP-stack L1 data fee included. Paid: call without x_payment to receive this call's exact terms (amount, asset, network), sign them, then call again with x_payment. The free `pricing`
• gas_price ~410 tokens
  Bid-ready EIP-1559 fees (slow/standard/fast maxFeePerGas + maxPriorityFeePerGas, tx-ready wei) for one chain, read live from public RPCs. Pass tx_type to get the USD cost of that specific transaction instead, including the OP-stack L1 data fee naive estimators miss. Paid: call without x_payment to r
• nft_scam_check ~349 tokens
  Deterministic scam checklist with a verdict and evidence (spam flags, copymint collisions, holder concentration). Pass a collection contract to check the collection, or a wallet to check that wallet's whole scam exposure holding by holding. Paid: call without x_payment to receive this call's exact t
• spot_price ~350 tokens
  Live Chainlink on-chain spot price for an asset (latestRoundData, with round metadata). Pass `to` as well to cross-convert two assets via their USD feeds, with both legs reported. Paid: call without x_payment to receive this call's exact terms (amount, asset, network), sign them, then call again wit
• swap_quote ~349 tokens
  Indicative UniswapV2 swap quote from live on-chain reserves: amount out, execution price, and price impact — what the trade will actually cost before you sign it. Paid: call without x_payment to receive this call's exact terms (amount, asset, network), sign them, then call again with x_payment. The
• token_safety ~286 tokens
  Heuristic token safety check: follows the proxy and scans the bytecode that actually runs, plus ownership and transfer restrictions. Returns a verdict with per-rule evidence. Paid: call without x_payment to receive this call's exact terms (amount, asset, network), sign them, then call again with x_p

Browse

• Crypto and blockchains

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Badge for your README

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