Alpaca Trading API integration for Model Context Protocol (MCP)
Legible Check 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
On-chain RPC data for AI agents: block, gas, balance, tokens, receipts, decode. x402 USDC.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http legible-check-mcp https://legible-check.ezealfa.workers.dev/mcp
# 2 — ask your agent for something these tools do
# evm_block, evm_gas, evm_balance and 12 more
Legible Check costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
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 legible-check-mcp https://legible-check.ezealfa.workers.dev/mcpReconnect, 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.
15 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.
Block number on Base: the latest block height, timestamp, age, base fee, gas used and transaction count. Use it when an agent needs the current block number or the chain head. Price: 0.001 USDC per call over x402 on Base.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| chain | string | no | Example: base |
Gas price on Base in gwei, split into base fee and priority fee, with the block it was read at. Use it to estimate gas fees before sending a transaction. Price: 0.001 USDC per call over x402 on Base.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| chain | string | no | Example: base |
Wallet balance on Base: the native ETH balance for any address, in wei and ETH, with the block height it was read at. Use it to read a wallet balance. Price: 0.002 USDC per call over x402 on Base.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| address | string | yes | Example: 0x842448B864443e18B1A7cCc1c25a676222B72413 |
| chain | string | no | Example: base |
Token balance on Base: the ERC20 balance of an address, with raw units, decimals and the token symbol resolved on-chain. Use it to read a token balance. Price: 0.003 USDC per call over x402 on Base.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| token | string | yes | Example: 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 |
| address | string | yes | Example: 0x842448B864443e18B1A7cCc1c25a676222B72413 |
Wallet nonce on Base: the next transaction nonce for any address. Use it to build a transaction without racing the mempool. Price: 0.002 USDC per call over x402 on Base.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| address | string | yes | Example: 0x842448B864443e18B1A7cCc1c25a676222B72413 |
| chain | string | no | Example: base |
Transaction lookup on Base by hash: decoded from, to, value, nonce, gas and max fee, and whether it is mined or pending. Use it to inspect any transaction. Price: 0.002 USDC per call over x402 on Base.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| hash | string | yes | Example: 0x0000000000000000000000000000000000000000000000000000000000000000 |
Transaction receipt on Base: success or reverted, block, gas used, effective gas price, log count and created contract. Use it to confirm a transaction or read its status. Price: 0.002 USDC per call over x402 on Base.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| hash | string | yes | Example: 0x0000000000000000000000000000000000000000000000000000000000000000 |
ERC20 transfers on Base for an address over the last N blocks (default 5000), newest first, with tx hashes. Use it to list incoming token transfers. Price: 0.003 USDC per call over x402 on Base.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| token | string | no | Example: 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 |
| address | string | yes | Example: 0x842448B864443e18B1A7cCc1c25a676222B72413 |
| blocks | string | no | Example: 5000 |
Crypto price and token price in USD with 24h change and market cap for one or more CoinGecko ids (bitcoin, ethereum, solana, ...). Use it when an agent needs a current price before quoting or sizing a trade. Price: 0.001 USDC per call over x402 on Base.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| ids | string | no | Example: bitcoin,ethereum |
| vs | string | no | Example: usd |
DEX quote and liquidity: live pair quotes for a token or pair query, with price in USD, liquidity and 24h volume across chains. Use it to compare venues before a swap. Price: 0.002 USDC per call over x402 on Base.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| q | string | no | Example: USDC |
Transaction status on Base: success, reverted or pending for a given transaction hash, with block number, confirmations and gas used. Use it to check whether a transfer confirmed. Price: 0.001 USDC per call over x402 on Base.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| hash | string | yes | Example: 0x0000000000000000000000000000000000000000000000000000000000000000 |
Token metadata for an ERC20 contract on Base: name, symbol, decimals and total supply. Use it before formatting any token amount or price. Price: 0.002 USDC per call over x402 on Base.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| token | string | yes | Example: 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 |
Contract check and ABI for an address on Base: whether it is a contract, its bytecode size, whether Sourcify verified it, and the ABI when available. Price: 0.003 USDC per call over x402 on Base.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| address | string | yes | Example: 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 |
Portfolio for a wallet on Base, Polygon or Arbitrum in one call: native balance, nonce and the balance of up to ten ERC20 tokens with symbol and decimals. Use it when an agent needs a full wallet snapshot instead of many calls. Price: 0.005 USDC per call over x402 on Base.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| address | string | yes | Example: 0x842448B864443e18B1A7cCc1c25a676222B72413 |
| tokens | string | no | Example: 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 |
| chain | string | no | Example: base |
Decode an EVM transaction: given a transaction hash, or raw calldata plus a contract address, return the function selector, every known signature for it and the decoded static arguments. Use it to explain what a transaction does before signing or reporting it. Price: 0.003 USDC per call over x402 on Base.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| hash | string | yes | Example: 0x0000000000000000000000000000000000000000000000000000000000000000 |
| chain | string | no | Example: base |
- 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 Legible Check 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.
| Term | Level | What it prices | Points |
|---|---|---|---|
| capability-exposure | minimal | capability blast radius (minimal) — client exposure if the model is manipulated | −0 |
| coverage-honesty | manifest | inspection depth (manifest) — how much of the target the scan could see | −4 |
What the scan could actually read
A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.
The scan read each tool’s name, description, input schema and annotations exactly as the server listed them the last time it answered us; no code was reviewed. We ask the server again about once a month, and a list that changed is graded again.
The implementation source was not read — this reflects the declared tool metadata only.
Capability — what it could do if the model were manipulated
Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. minimal is the level these add up to.
| Tool | Capability tags | Why the tag was assigned |
|---|---|---|
| evm_block | no tags | |
| evm_gas | no tags | |
| evm_balance | no tags | |
| evm_token_balance | no tags | |
| evm_nonce | no tags | |
| evm_tx | no tags | |
| evm_receipt | no tags | |
| evm_transfers | no tags | |
| crypto_price | no tags | |
| dex_quote | no tags | |
| evm_tx_status | no tags | |
| evm_token_info | no tags | |
| evm_contract | no tags | |
| evm_portfolio | no tags | |
| evm_decode | no tags |
Toxic-flow graph
The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.
The public result for this release does not print the flow graph, so there is nothing to show here. That is not the same as "no paths were found": what the scan did read is above, under coverage.
Supply chain and provenance
This is the first scan of this surface here, so there is nothing yet to compare it against.
Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.
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 Legible Check 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.