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Professor Sausages — On-chain

com.professorsausages/sausage-onchain
Cripto y Web3 Finanzas e inversión Seguridad Público y accesible MCP 2026-07-28

Qué hace este MCP

Provides EVM chain and gas data, Chainlink prices, swap quotes, ENS resolution, token and NFT safety checks, and OFAC screening for crypto addresses.

Capacidades

Herramientas

12 herramientas
address_screen
Screen a crypto address against OFAC
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. The free `pricing` tool lists every price at once.
Esquema de entrada 
{'type': 'object', 'required': ['address'], 'properties': {'chain': {'enum': ['base', 'ethereum', 'bitcoin', 'tron', 'litecoin', 'monero', 'dash', 'zcash', 'bitcoin-cash', 'dogecoin', 'bitcoin-gold', 'verge', 'solana'], 'type': 'string', 'default': 'base', 'examples': ['base'], 'description': 'Which chain the address belongs to.'}, 'address': {'type': 'string', 'examples': ['0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913'], 'description': "The address to screen, in that chain's native format."}, 'x_payment': {'type': 'string', 'description': 'Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and get the data.'}}}
chain_info
EVM chain registry
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; view='l2s' lists a parent chain's L2s. 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` tool lists every price at once.
Esquema de entrada 
{'type': 'object', 'properties': {'q': {'type': 'string', 'examples': ['scroll'], 'description': "Name/symbol fragment (view='search')."}, 'view': {'enum': ['record', 'rpcs', 'wallet_config', 'search', 'l2s'], 'type': 'string', 'default': 'record', 'examples': ['rpcs'], 'description': 'Which shape of chain data to return.'}, 'parent': {'type': 'string', 'default': '1', 'examples': ['1'], 'description': "Parent chain id for view='l2s'."}, 'chain_id': {'type': 'string', 'examples': ['8453'], 'description': 'Numeric chain id (required for record/rpcs/wallet_config).'}, 'x_payment': {'type': 'string', 'description': 'Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and get the data.'}}}
ens_resolve
Resolve ENS names and addresses
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 without x_payment to receive this call's exact terms (amount, asset, network), sign them, then call again with x_payment. The free `pricing` tool lists every price at once.
Esquema de entrada 
{'type': 'object', 'required': ['query'], 'properties': {'keys': {'type': 'string', 'examples': ['avatar,url'], 'description': "Comma-separated ENS text-record keys (view='text')."}, 'view': {'enum': ['resolve', 'profile', 'avatar', 'text'], 'type': 'string', 'default': 'resolve', 'examples': ['profile'], 'description': 'resolve = name↔address; profile/avatar/text need a name.'}, 'query': {'type': 'string', 'examples': ['ens.eth'], 'description': 'An ENS name (ends in .eth) or a 0x address.'}, 'x_payment': {'type': 'string', 'description': 'Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and get the data.'}}}
find_data
Find the right data source
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, URL, price, and how to call them. Free.
Esquema de entrada 
{'type': 'object', 'required': ['task'], 'properties': {'task': {'type': 'string', 'examples': ['Apple risk factors 2023'], 'description': "What you're trying to find or do, in your own words"}}}
gas_compare
Cheapest chain right now
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` tool lists every price at once.
Esquema de entrada 
{'type': 'object', 'properties': {'gas': {'type': 'integer', 'examples': [21000], 'description': 'Optional gas limit override.'}, 'speed': {'enum': ['slow', 'standard', 'fast'], 'type': 'string', 'default': 'standard', 'examples': ['standard'], 'description': 'Fee tier to compare at.'}, 'tx_type': {'enum': ['transfer', 'erc20', 'swap', 'nftMint', 'deploy'], 'type': 'string', 'default': 'transfer', 'examples': ['erc20'], 'description': 'Transaction shape to price on every chain.'}, 'x_payment': {'type': 'string', 'description': 'Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and get the data.'}}}
gas_price
Current gas market for a chain
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 receive this call's exact terms (amount, asset, network), sign them, then call again with x_payment. The free `pricing` tool lists every price at once.
Esquema de entrada 
{'type': 'object', 'properties': {'gas': {'type': 'integer', 'examples': [21000], 'description': 'Optional gas limit override when tx_type is set.'}, 'chain': {'enum': ['ethereum', 'base', 'arbitrum', 'optimism', 'polygon', 'bsc'], 'type': 'string', 'default': 'base', 'examples': ['base'], 'description': "Which chain's gas market to read."}, 'speed': {'enum': ['slow', 'standard', 'fast'], 'type': 'string', 'default': 'standard', 'examples': ['fast'], 'description': 'Which fee tier to price the estimate at.'}, 'tx_type': {'enum': ['transfer', 'erc20', 'swap', 'nftMint', 'deploy'], 'type': 'string', 'examples': ['erc20'], 'description': 'Optional: cost a specific transaction shape rather than returning raw fees.'}, 'x_payment': {'type': 'string', 'description': 'Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and get the data.'}}}
nft_scam_check
NFT scam / copymint 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 receive this call's exact terms (amount, asset, network), sign them, then call again with x_payment. The free `pricing` tool lists every price at once.
Esquema de entrada 
{'type': 'object', 'properties': {'chain': {'enum': ['eth'], 'type': 'string', 'default': 'eth', 'examples': ['eth'], 'description': 'Which chain to read (Ethereum mainnet today).'}, 'wallet': {'type': 'string', 'examples': ['0xFe89cc7aBB2C4183683ab71653C4cdc9B02D44b7'], 'description': 'Wallet address — checks scam exposure across its holdings instead.'}, 'contract': {'type': 'string', 'examples': ['0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D'], 'description': 'Collection contract address to check.'}, 'x_payment': {'type': 'string', 'description': 'Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and get the data.'}}}
pricing
Price list
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.
Esquema de entrada 
{'type': 'object', 'properties': {}}
request_data
Request missing 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.
Esquema de entrada 
{'type': 'object', 'required': ['description'], 'properties': {'contact': {'type': 'string', 'examples': ['https://example.com/contact'], 'description': 'Optional: URL/email/handle for follow-up'}, 'use_case': {'type': 'string', 'examples': ['a risk-factor diffing agent'], 'description': "Optional: what you're building"}, 'description': {'type': 'string', 'examples': ['Tesla 10-K for fiscal 2014'], 'description': 'What data you need, in your own words'}}}
spot_price
Oracle 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, then call again with x_payment. The free `pricing` tool lists every price at once.
Esquema de entrada 
{'type': 'object', 'required': ['asset'], 'properties': {'to': {'type': 'string', 'examples': ['USDC'], 'description': 'Optional second asset — converts `asset` into it instead of quoting USD.'}, 'asset': {'type': 'string', 'examples': ['ETH'], 'description': 'Asset symbol with a Chainlink feed (call /prices/feeds free to list them).'}, 'chain': {'enum': ['ethereum', 'base'], 'type': 'string', 'default': 'base', 'examples': ['base'], 'description': "Which chain's oracle to read."}, 'amount': {'type': 'number', 'examples': [1], 'description': 'Amount to convert (with `to`).'}, 'x_payment': {'type': 'string', 'description': 'Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and get the data.'}}}
swap_quote
DEX 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 with x_payment. The free `pricing` tool lists every price at once.
Esquema de entrada 
{'type': 'object', 'required': ['token_in', 'token_out'], 'properties': {'chain': {'enum': ['base', 'ethereum'], 'type': 'string', 'default': 'base', 'examples': ['base'], 'description': 'Which chain to quote on.'}, 'amount': {'type': 'number', 'examples': [1], 'description': 'Amount of token_in to sell.'}, 'token_in': {'type': 'string', 'examples': ['0x4200000000000000000000000000000000000006'], 'description': 'Address of the token being sold.'}, 'token_out': {'type': 'string', 'examples': ['0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913'], 'description': 'Address of the token being bought.'}, 'x_payment': {'type': 'string', 'description': 'Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and get the data.'}}}
token_safety
Token rug-pull / honeypot check
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_payment. The free `pricing` tool lists every price at once.
Esquema de entrada 
{'type': 'object', 'required': ['address'], 'properties': {'chain': {'enum': ['base', 'ethereum'], 'type': 'string', 'default': 'base', 'examples': ['base'], 'description': 'Which chain the token contract is on.'}, 'address': {'type': 'string', 'examples': ['0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913'], 'description': 'Token contract address.'}, 'x_payment': {'type': 'string', 'description': 'Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and get the data.'}}}
Historial

Cambios recientes en herramientas

Añadido
nft_scam_check
17 de September de 2026 a las 12:36
Añadido
chain_info
17 de September de 2026 a las 12:36
Añadido
ens_resolve
17 de September de 2026 a las 12:36
Añadido
swap_quote
17 de September de 2026 a las 12:36
Añadido
address_screen
17 de September de 2026 a las 12:36
Añadido
token_safety
17 de September de 2026 a las 12:36
Añadido
spot_price
17 de September de 2026 a las 12:36
Añadido
gas_compare
17 de September de 2026 a las 12:36
Añadido
gas_price
17 de September de 2026 a las 12:36
Añadido
request_data
17 de September de 2026 a las 12:36
Añadido
pricing
17 de September de 2026 a las 12:36
Añadido
find_data
17 de September de 2026 a las 12:36
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