Discover / kr-x402-mvp.kgy5612.workers.dev

Crypto Microdata for Agents

■ Live

ERC-20 approval check on Base: how much can spender move from owner? owner=0x..&spender=0x..[&token=0x.., default USDC][&amount=] -> allowance, unlimited flag, owner balance, exposure (min of allowance and balance), known spender label (Permit2, Uniswap, 1inch, 0x, Odos, Aerodrome), risk class, revoke_recommended + ready approve(spender,0) calldata, can_spend when amount= given. Use before transferFrom/swap, or to audit a wallet's dangerous approvals.

Listed price
$0.002
Live
1 of the last check
Median response
64 ms
Last checked
30 Oct, 12:25 UTC
In our index since
30 Oct 2026

Endpoint

curl -i https://kr-x402-mvp.kgy5612.workers.dev/crypto/allowance
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.
29 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://kr-x402-mvp.kgy5612.workers.dev/crypto

  • GET/erc20-balance$0.003Live ERC-20 balance on Base: token=0x..&wallet=0x.. -> balance (decimals applied), raw, symbol, block.
  • GET/market-risk$0.002Is anything breaking in crypto right now? One composite 0-100 market-stress score (low|moderate|elevated|high) with a per-leg breakdown: stablecoins (worst USDC/USDT/DAI peg deviation in bps + 7d supply flow), price & breadth (BTC 24h move + share of ~140 liquid Hyperliquid perps that are up), leverage (BTC funding APR + share of perps at extreme funding), volatility (BTC 1h ATR14 as % of price) and sentiment (Fear & Greed).
  • GET/ping$0.001Paid heartbeat: cheapest way to test your x402 client end-to-end on Base USDC. Returns {ok:true,t,next}.
  • GET/x-search$0.003Live X (Twitter) search for agents that cannot read X: q=keyword|$TICKER|from:handle (X search operators ok), limit=1-20 (default 10), lang=en|ko|.., sort=recency|relevancy. Returns posts [{id,url,text,author{handle,name,followers,verified},metrics{likes,reposts,replies,quotes},created_at,lang}] plus signal {top_claim (most-engaged post: the tip/claim), sentiment bullish|bearish|neutral with score, top_terms, cashtags, notable_handles, engagement}. Last 7 days, no retweets. 4xx/5xx not charged.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 4 of 29 listed endpoints. First endpoints

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/kr-x402-mvp.kgy5612.workers.dev

Recent checks

30 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean the endpoint was not live. “Live” means it answered with HTTP 402 or another detected payment-challenge signal.30 Oct 2026
All 1 checks
When (UTC)ResultHTTPResponse
30 Oct, 12:25 UTCLive40264ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 30 Oct, 12:25 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for Crypto Microdata for Agents?

Its listed price is $0.002.

What payment terms does Crypto Microdata for Agents advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is Crypto Microdata for Agents listed?

In x402 Bazaar. Superstables first indexed it on 30 Oct 2026.

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