Professor Sausages — On-chain

Connect Remote server

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

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

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

Settings > Connectors > Add custom connector
URL: https://x402.professorsausages.com/mcp/onchain

Tools 12 found in our last check

• find_data

  Describe the data you need in plain language (e.g. 'Apple risk factors 2023', 'is this token a honeypot', 'is this email deliverable', 'read this page'). Searches this server's datasets first, then the whole Professor Sausages catalog, and returns matching endpoints with method,…

• pricing

  Every endpoint this server fronts, with its exact per-call USD price (x402, USDC on Base) and a one-line summary, read live from the route table. Free.

• request_data

  The suggestion box: ask for data we don't have (a pre-2015 filing, an uncovered ticker, an unsupported chain, a whole dataset). Requests feed the nightly ingestion queue — filings are usually available within ~24h. Include contact if you want to hear back. Free.

• gas_price

  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 w…

• gas_compare

  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_paymen…

• spot_price

  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…

• token_safety

  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, the…

• address_screen

  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…

• swap_quote

  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…

• ens_resolve

  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 imag…

• chain_info

  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…

• nft_scam_check

  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 receiv…

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