Discover / chain.openverbs.com

Contract bytecode and code hash

■ Challenge detected

Fetch deployed EVM contract runtime bytecode and its Keccak-256 code hash to fingerprint or compare contracts, or feed a disassembler. Supports Ethereum, Base, Arbitrum, Optimism and Polygon, with optional historical block reads. Returns full hex code, byte size and isContract; an empty-code address returns 0x and a null hash. Key-free RPC with endpoint fallback; code capped at 256 KiB.

Listed price
$0.006
Challenge detected
1 of the last check
Median response
213 ms
Last checked
14 Oct, 21:21 UTC
In our index since
14 Oct 2026

Endpoint

curl -i https://chain.openverbs.com/v1/bytecode
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/chain.openverbs.com

Recent checks

14 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 no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.14 Oct 2026
All 1 checks
When (UTC)ResultHTTPResponse
14 Oct, 21:21 UTCChallenge detected402213ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 14 Oct, 21:21 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 Contract bytecode and code hash?

Its listed price is $0.006.

What payment terms does Contract bytecode and code hash 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 Contract bytecode and code hash listed?

In x402 Bazaar. Superstables first indexed it on 14 Oct 2026.

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