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legible-check.ezealfa.workers.dev

https://legible-check.ezealfa.workers.dev/check
● healthy x402
Category
x402
Chains
base, solana, eip155:42220
Price
$0.0010–$1.0000 USDC

Quality grade

How grading works
B+ 69.0 / 100
Availability 20.0 / 20
Endpoint responded (HTTP 402)
Payability 15.0 / 15
  • ✓ Answers a real HTTP 402 challenge
  • ✓ Publishes a /.well-known/x402 descriptor
  • ✓ Payment address on record
  • ✓ Settlement network declared
  • ✓ Price declared
Demand 10.4 / 35
6 distinct payers, 20 USDC transfers in the last 30 days
Performance 10.0 / 10
Last probe answered in 99 ms (full marks at 200 ms or less)
Readiness 13.6 / 15
Agent readiness 91/100
Owner verified 0.0 / 5
Nobody has claimed this listing yet
Endpoint last checked 19 h ago. On-chain activity last read 3 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass. This grade sets search order and leaderboards; the readiness score below is shown for reference only.

x402 readiness

A · 91/100

Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here B+, 69.0/100), which weighs availability, payability and on-chain demand. How the two differ

Valid payment requirements 10/10 Payment requirements carry a payee, a mainnet network and a price.
Live 402 challenge 25/25 Paid endpoint answers with an HTTP 402 challenge (99 ms).
x402 version n/a x402 version not observed yet.
Signed descriptor n/a No x402 standard defines a signed descriptor.
Uptime (30 days) 15/15 19/19 probes succeeded over 30 days (100%).
Resource declaration 10/10 Declares 26 paid resource(s).
Verified identity 5/10 Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
Freshness + modern flags 3/5 seen within 30 days; declares x402.
Security declaration n/a Payment is the access control for an x402 resource.
Applicable criteria total 75 points, scaled to 100.
Responsiveness: Responsive (99 ms; bands ≤2.5 s, ≤5 s, ≤8 s, slower; penalty only).
Payment evidence: x402_challenge — We sent a request and got a live HTTP 402 challenge. Also: x402_manifest, catalog_listing. Qualifies the payment claim; adds no points.
Measured 2026-11-11.
Nine criteria, the same as the A2A readiness score, read from our daily probe of the paid endpoint, its payment requirements and 30-day probe history. Signed descriptor and security declaration are n/a for x402 (payment is the access control), as is an x402 version we have not observed; the remaining points are scaled to 100. Grades: A>=90, B>=75, C>=60, D>=40, F<40. It also feeds 15 points of the x402 quality grade.

Compared with peers

Against 10,082 reachable x402 APIs in our daily snapshot (2026-11-12 06:46 UTC). Display only; it does not change search order.

Readiness
Higher than 90% of peers
This listing 91 · peer median 78
Latency
Faster than 88% of peers
This listing 99 ms · peer median 205 ms

Where it loses the most points, and how to win them back

  • Verified identity −5 — Claim the listing and prove control of its domain.
    Now: Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
  • Freshness + modern flags −2 — Keep the listing current in the registry or source it comes from.
    Now: seen within 30 days; declares x402.

How many agent tools actually work · All statistics

Paid endpoints

26 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.

GET https://legible-check.ezealfa.workers.dev/check $0.0200 / call

Legibility report for one hashn store listing: the price a stranger can act on, placement, whether it is in the forest, a PASS|FAIL verdict and the exact header line to add.

GET https://legible-check.ezealfa.workers.dev/fix $0.0200 / call

The exact `price:` header line for every hashn listing of one workspace that falls outside the forest, ready to paste, with the reason hashn gives and the market median behind each amount.

GET https://legible-check.ezealfa.workers.dev/store $0.0100 / call

Query the live hashn store index: who is in the forest, active prices, and current compliance status against current forest rules.

GET https://legible-check.ezealfa.workers.dev/x402check $0.0050 / call

Read-only preflight of another x402 seller endpoint: live 402 findings plus CDP validate and PayAI listing status. Never pays the target.

GET https://legible-check.ezealfa.workers.dev/risk/token $0.0200 / call

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

GET https://legible-check.ezealfa.workers.dev/x402/seller $0.0100 / call

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.

GET https://legible-check.ezealfa.workers.dev/x402/feed $0.0100 / call

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.

GET https://legible-check.ezealfa.workers.dev/security/app-check $0.2500 / call

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-c

GET https://legible-check.ezealfa.workers.dev/risk/portfolio $1.0000 / call

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.

GET https://legible-check.ezealfa.workers.dev/evm/block $0.0010 / call

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.

GET https://legible-check.ezealfa.workers.dev/evm/gas $0.0010 / call

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.

GET https://legible-check.ezealfa.workers.dev/evm/balance $0.0020 / call

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.

GET https://legible-check.ezealfa.workers.dev/evm/token-balance $0.0030 / call

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.

GET https://legible-check.ezealfa.workers.dev/evm/nonce $0.0020 / call

Wallet nonce on Base: the next transaction nonce for any address. Use it to build a transaction without racing the mempool.

GET https://legible-check.ezealfa.workers.dev/evm/tx $0.0020 / call

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.

GET https://legible-check.ezealfa.workers.dev/evm/receipt $0.0020 / call

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.

GET https://legible-check.ezealfa.workers.dev/evm/transfers $0.0030 / call

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.

GET https://legible-check.ezealfa.workers.dev/crypto/price $0.0010 / call

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.

GET https://legible-check.ezealfa.workers.dev/dex/quote $0.0020 / call

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.

GET https://legible-check.ezealfa.workers.dev/evm/tx-status $0.0010 / call

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.

GET https://legible-check.ezealfa.workers.dev/evm/token-info $0.0020 / call

Token metadata for an ERC20 contract on Base: name, symbol, decimals and total supply. Use it before formatting any token amount or price.

GET https://legible-check.ezealfa.workers.dev/evm/contract $0.0030 / call

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.

GET https://legible-check.ezealfa.workers.dev/evm/portfolio $0.0050 / call

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.

GET https://legible-check.ezealfa.workers.dev/evm/decode $0.0030 / call

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.

GET https://legible-check.ezealfa.workers.dev/evm/recipient-check $0.0020 / call

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.

GET https://legible-check.ezealfa.workers.dev/quant/risk $0.0010 / call

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.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -sS -i -X GET https://legible-check.ezealfa.workers.dev/check  # expect HTTP 402 Payment Required (about 0.001 USDC/call)
/.well-known/x402.json
https://legible-check.ezealfa.workers.dev/.well-known/x402

Listed in

Directories this entry was found in.

aegis since 2026-10-23 x402 since 2026-10-24 a2a since 2026-10-26 x402scan since 2026-11-02 mcp since 2026-11-04