Tool detail

VAPE

Returns a blockchain's headline TVL and its rank among tracked chains, defaulting to Base.

Categories: Market prices, Onchain data

Use when

check a chain's total value locked and rank versus other chains
get a quick TVL snapshot for Base or another chain

Not for

not a per-protocol breakdown on that chain (see /data/chain_protocols)
not fee data (see /data/chain_fees)

Inputs

GET query param: chain (string, optional, default 'Base').

Admitted input schema

{
  "type": "object",
  "properties": {
    "chain": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "description": "chain display name, default 'Base'"
    }
  },
  "required": [],
  "additionalProperties": false
}

Endpoint

Method: GET
URL: https://vape-x402.vapex402.workers.dev/data/chain_overview

Payment

Protocol: x402
Listed price: 0.01 USDC per call on Base
Payment method: exact
Network: eip155:8453
Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Directory: Coinbase x402 Bazaar
Record: GET https://vape-x402.vapex402.workers.dev/data/chain_overview
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z