# io.github.EzeAlfaro/legible-check

> On-chain RPC data for AI agents: block, gas, balance, tokens, receipts, decode. x402 USDC.

- name: io.github.EzeAlfaro/legible-check
- version: 1.0.1
- connection class: R0 (autonomous)
- trust: 93/100
- quality: 73/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.EzeAlfaro%2Flegible-check
- tools: https://api.protogrid.dev/v1/servers/io.github.EzeAlfaro%2Flegible-check/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "legible-check": {
      "type": "http",
      "url": "https://legible-check.ezealfa.workers.dev/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 98
- freshness: 100
- provenance: 80
- drivers: +repository +namespace-matches-repo +reachable +uptime-95% +updated-5d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 73/100 (new)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2024-11-05; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 71 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: x402_feed (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); crypto_price (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); evm_recipient_check (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 2,523 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 4 of the 7 days needed

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 22, about 2,523 tokens to load them all
- tool set hash: 830b12e616d5336e7a510fa38c3b7677
- tools last changed: 2026-11-06T04:17:50.413Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.EzeAlfaro/legible-check.svg)](https://protogrid.dev/servers/io.github.EzeAlfaro/legible-check)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-11-06 `quant_risk` added
  - Quantitative trading risk and liquidation calculator for perp/margin DEX agents: calculates exact liquidation price, stop-loss price, margin buffer and risk rating for long or short positions with fee and maintenance margin awareness. Price: 0.001 USDC per call over x402 on Base or Solana.
- 2026-11-06 `evm_recipient_check` added
  - Recipient pre-flight check before transfers or payouts: verifies whether an address is an EOA or contract, code size, tx count, native balance, and detects burn/zero addresses. Use it to prevent burning funds. Price: 0.002 USDC per call over x402 on Base or Solana.
- 2026-11-06 `evm_decode` changed (inputSchema)
- 2026-11-06 `evm_tx_status` changed (inputSchema)
- 2026-11-06 `evm_receipt` changed (inputSchema)
- 2026-11-06 `evm_tx` changed (inputSchema)
- 2026-11-06 `x402_feed` added
  - Live x402 ecosystem intelligence feed in one zero-parameter call: top verified stable sellers from 17,000+ tracked endpoints, flagged bait-and-switch origins (wallet or price swaps), recent change alerts, and current Base gas. Price: 0.010 USDC per call over x402 on Base or Solana.
- 2026-11-06 `x402_seller` changed (inputSchema)
- 2026-11-05 `risk_portfolio` added
  - Portfolio risk report for treasuries and large wallets: up to 25 tokens checked in one call, with balance, USD value, a verdict per position, value held in flagged tokens and the largest concentration. Pass the wallet and its tokens. A failed read is not charged. Price: 1.000 USDC per call over x402 on Base or Solana.
- 2026-11-05 `security_app_check` added
  - Security check of a web app built with AI: exposed secrets in the browser bundle, Supabase tables readable without login, open Firebase databases, published .env or .git files, and missing headers. Each finding has a fix. The app owner must publish a verification token first; get it with POST /app-check/token. An unverified app is not charged. Price: 0.250 USDC per call over x402 on Base or Solana.

Full history: https://api.protogrid.dev/v1/servers/io.github.EzeAlfaro%2Flegible-check/changes

## Remotes

- https://legible-check.ezealfa.workers.dev/mcp (streamable-http, auth none, reachable true, uptime30d 0.94736844)

## Packages

_none_

## Tools (22)

- `crypto_price`: 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 or Solana.
- `dex_quote`: 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 or Solana.
- `evm_balance`: 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 or Solana.
- `evm_block`: 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 or Solana.
- `evm_contract`: 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 or Solana.
- `evm_decode`: 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 or Solana.
- `evm_gas`: 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 or Solana.
- `evm_nonce`: 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 or Solana.
- `evm_portfolio`: 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 or Solana.
- `evm_receipt`: 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 or Solana.
- `evm_recipient_check`: Recipient pre-flight check before transfers or payouts: verifies whether an address is an EOA or contract, code size, tx count, native balance, and detects burn/zero addresses. Use it to prevent burning funds. Price: 0.002 USDC per call over x402 on Base or Solana.
- `evm_token_balance`: 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 or Solana.
- `evm_token_info`: 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 or Solana.
- `evm_transfers`: 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 or Solana.
- `evm_tx`: 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 or Solana.
- `evm_tx_status`: 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 or Solana.
- `quant_risk`: Quantitative trading risk and liquidation calculator for perp/margin DEX agents: calculates exact liquidation price, stop-loss price, margin buffer and risk rating for long or short positions with fee and maintenance margin awareness. Price: 0.001 USDC per call over x402 on Base or Solana.
- `risk_portfolio`: Portfolio risk report for treasuries and large wallets: up to 25 tokens checked in one call, with balance, USD value, a verdict per position, value held in flagged tokens and the largest concentration. Pass the wallet and its tokens. A failed read is not charged. Price: 1.000 USDC per call over x402 on Base or Solana.
- `risk_token`: Token verdict before you buy, hold or accept a token: an A-F grade and a plain-language summary, with every signal behind it (mint, pause, blacklist and fee powers, upgradeable proxy, owner, DEX liquidity, market age, volume) and a list of what was not checked. Send back the fingerprint as since to learn whether anything changed. Base, Polygon, Arbitrum or Celo. Price: 0.020 USDC per call over x402 on Base or Solana.
- `security_app_check`: Security check of a web app built with AI: exposed secrets in the browser bundle, Supabase tables readable without login, open Firebase databases, published .env or .git files, and missing headers. Each finding has a fix. The app owner must publish a verification token first; get it with POST /app-check/token. An unverified app is not charged. Price: 0.250 USDC per call over x402 on Base or Solana.
- `x402_feed`: Live x402 ecosystem intelligence feed in one zero-parameter call: top verified stable sellers from 17,000+ tracked endpoints, flagged bait-and-switch origins (wallet or price swaps), recent change alerts, and current Base gas. Price: 0.010 USDC per call over x402 on Base or Solana.
- `x402_seller`: History of an x402 seller before your agent pays it: how long the resource has been tracked, whether its recipient wallet or price changed, and how often it answers. A change of recipient is the signal to stop and look. Untracked resources are not charged. Price: 0.010 USDC per call over x402 on Base or Solana.