Marketplace · API · x402

keyronne.com/api/chain-block

Fetch a block header by number, hash, or "latest" on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain: timestamp, miner, gas used/limit, base fee, transaction count, size. Public JSON-RPC, no API keys. POST a JSON body like: {"chain":"base","block":"latest"}

Endpoint	`https://keyronne.com/api/chain-block`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~143 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0xB86F95EF5FA904318Ea9Df3b59AdCe099b478fC4
method	POST
last updated	2026-11-01T23:29:51.153Z

Use it

Call it (an x402 client pays automatically)

curl -i https://keyronne.com/api/chain-block
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-c2a306850f959c2e

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}

Gas prices across chains (AIPayGen)
API$0.001/call

keyronne.com/api/chain-block

Use it

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