Alpaca Trading API integration for Model Context Protocol (MCP)
Professor Sausages — On-chain is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
What it does
EVM gas, Chainlink prices, token-safety, swap quotes, ENS, OFAC & NFT via x402.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http professor-sausages-on-chain-mcp https://x402.professorsausages.com/mcp/onchain
# 2 — ask your agent for something these tools do
# find_data, pricing, request_data and 9 more
Professor Sausages — On-chain costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. Nothing here runs on your machine and nothing runs on ours: this server answers at its publisher’s own address, and what you install is the connection straight to it.
This is a public server: it answers at its publisher’s own address and this marketplace is not in the path. Claude Code registers it in one command; --scope user makes it available in every project. The transport below is http, as the publisher's own manifest declares it.
claude mcp add --scope user --transport http professor-sausages-on-chain-mcp https://x402.professorsausages.com/mcp/onchainReconnect, or start a new session, and the tools appear in the model’s tool list.
One config entry pointing straight at the publisher’s own address — this marketplace is not in the path, and nothing from this listing executes on your machine.
12 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| task | string | yes | What you're trying to find or do, in your own words |
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.
No parameter schema on file.
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| description | string | yes | What data you need, in your own words |
| use_case | string | no | Optional: what you're building |
| contact | string | no | Optional: URL/email/handle for follow-up |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| chain | string | no | Which chain's gas market to read. |
| tx_type | string | no | Optional: cost a specific transaction shape rather than returning raw fees. |
| gas | integer | no | Optional gas limit override when tx_type is set. |
| speed | string | no | Which fee tier to price the estimate at. |
| x_payment | string | no | 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 |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| tx_type | string | no | Transaction shape to price on every chain. |
| gas | integer | no | Optional gas limit override. |
| speed | string | no | Fee tier to compare at. |
| x_payment | string | no | 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 |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| asset | string | yes | Asset symbol with a Chainlink feed (call /prices/feeds free to list them). |
| to | string | no | Optional second asset — converts asset into it instead of quoting USD. |
| amount | number | no | Amount to convert (with to). |
| chain | string | no | Which chain's oracle to read. |
| x_payment | string | no | 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 |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| chain | string | no | Which chain the token contract is on. |
| address | string | yes | Token contract address. |
| x_payment | string | no | 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 |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| chain | string | no | Which chain the address belongs to. |
| address | string | yes | The address to screen, in that chain's native format. |
| x_payment | string | no | 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 |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| chain | string | no | Which chain to quote on. |
| token_in | string | yes | Address of the token being sold. |
| token_out | string | yes | Address of the token being bought. |
| amount | number | no | Amount of token_in to sell. |
| x_payment | string | no | 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 |
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 aga
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | string | yes | An ENS name (ends in .eth) or a 0x address. |
| view | string | no | resolve = name↔address; profile/avatar/text need a name. |
| keys | string | no | Comma-separated ENS text-record keys (view='text'). |
| x_payment | string | no | 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 |
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 term
| Parameter | Type | Required | Notes |
|---|---|---|---|
| chain_id | string | no | Numeric chain id (required for record/rpcs/wallet_config). |
| view | string | no | Which shape of chain data to return. |
| q | string | no | Name/symbol fragment (view='search'). |
| parent | string | no | Parent chain id for view='l2s'. |
| x_payment | string | no | 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 |
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 li
| Parameter | Type | Required | Notes |
|---|---|---|---|
| contract | string | no | Collection contract address to check. |
| wallet | string | no | Wallet address — checks scam exposure across its holdings instead. |
| chain | string | no | Which chain to read (Ethereum mainnet today). |
| x_payment | string | no | 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 |
- Every tool — any call limit is its publisher’s, not ours
- No card, and mcprush charges nothing for it
- Runs at its publisher’s own address — this marketplace is not in the path
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install Professor Sausages — On-chain or to call it, at any volume.
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
This listing is an address its publisher runs, and you connect to it directly — this marketplace is not in the path. The scanner reads packages and public source, and an address is neither. So there is no grade — not a withheld one, an unmeasured one.
Release history
This is an address its publisher runs: which release it serves is theirs to choose, so there is nothing here to pin. The history below is for reading; the current release on file is 1.0.1.
No release note was published with this version.
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Any signed-in account that does not publish Professor Sausages — On-chain can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.