Tool detail

VAPE

Returns the top protocols on a blockchain, Base by default, ranked by TVL, each with logo, category and 24h/7d change.

Categories: Defi

Use when

show top DeFi protocols on Base by TVL
compare protocol TVL changes over 24h or 7d on a chain
list the leading protocols on a given blockchain

Not for

not per-protocol deep dives, summary ranking only
not wallet or token-level data

Inputs

GET query params: chain (string, optional, default Base); limit (number, optional, default 20)

Admitted input schema

{
  "type": "object",
  "properties": {
    "chain": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "description": "chain display name, default 'Base'"
    },
    "limit": {
      "type": "number",
      "minimum": -9007199254740991,
      "maximum": 9007199254740991,
      "description": "how many protocols, default 20"
    }
  },
  "required": [],
  "additionalProperties": false
}

Endpoint

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

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_protocols
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z