Task

Eip 1967

4 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

Oblique Markets x402 REST usage

Use when an agent needs base block number. Returns Fetch the current Base mainnet block number from redundant public RPCs and return structured JSON with source and freshness metadata. $0.002.

api.oblique.markets Other services 62 calls / 30d checked 2026-10-26

0.002 USDC per call per call

Proxy x402 REST usage

Detect whether a contract is an upgradeable proxy and resolve its implementation: reads the standard EIP-1967 implementation/admin/beacon slots, EIP-1822 (UUPS), the OpenZeppelin legacy slot, and EIP-1167 minimal-proxy b...

chain.openverbs.com Geo & Maps 3 calls / 30d checked 2026-10-26

0.004 USDC per call per call

Evm contract x402 REST usage

EVM contract introspection — is it a contract, is it a proxy, is it a token. Use it before you send funds to or call an address, to see whether it is a contract, a proxy or a token.

twin.unykorn.org Data & Finance 2 calls / 30d checked 2026-10-26

0.005 USDC per call per call

base-proxy x402 REST usage

Is this Base contract an upgradeable proxy? Proxy contract detection for EIP-1967 (transparent/UUPS), beacon, or EIP-1822 patterns, returning the implementation address.

x402.agentindex.world Geo & Maps 2 calls / 30d checked 2026-10-26

0.005 USDC per call per call

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