Professor Sausages — On-chain
by x402.professorsausages.com in Onchain & crypto
EVM gas, Chainlink prices, token-safety, swap quotes, ENS, OFAC & NFT via x402.
https://x402.professorsausages.com/mcp/onchain
Last 30 days
- Uptime
- 100%
- Response time
- 381 ms typical, 476 ms slowest 5%
- Last check
- 3 h ago
- Next check
- in 4 h
How to call it
Add it to any MCP client that supports remote servers.
{
"mcpServers": {
"professor-sausages-on-chain": {
"type": "http",
"url": "https://x402.professorsausages.com/mcp/onchain"
}
}
}12 tools
- 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 wi
- 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_payment
- 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, then
- 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 image
- 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 receive
Security scan
- No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.
Recent checks
| When | Result | HTTP | Time |
|---|---|---|---|
| 3 h ago | Passed | 200 | 364 ms |
| 12 h ago | Passed | 200 | 381 ms |
| 22 h ago | Passed | 200 | 476 ms |
| 31 h ago | Passed | 200 | 340 ms |
| 39 h ago | Passed | 200 | 477 ms |
| 2 days ago | Passed | 200 | 472 ms |
| 2 days ago | Passed | 200 | 393 ms |
| 3 days ago | Passed | 200 | 361 ms |