How much does a call cost?

$0.03 USDC on Base, paid with x402 before the operation runs.

POST JSON to /api/v1/defi-intelligence/chains/tvl. An unpaid request returns 402. Pay the exact USDC amount on Base, then retry with payment-signature and Idempotency-Key.

Get TVL by blockchain API

Retrieve Total Value Locked (TVL) across blockchains from DeFiLlama public API v2. TVL is a delayed reference value.

The Get TVL by blockchain operation is part of the DeFi Intelligence API on BRAINIAC.software. Retrieve Total Value Locked (TVL) across blockchains from DeFiLlama public API v2. TVL is a delayed reference value. It is exposed as POST /api/v1/defi-intelligence/chains/tvl and priced at $0.03 USDC on Base. Payment uses the x402 exact scheme: an unpaid call returns HTTP 402 with payment requirements; after paying the exact USDC amount, retry the same request with a payment-signature header and Idempotency-Key. No account and no API key are required. Data sources for this product: DeFiLlama public API for protocol and TVL data (api.llama.fi). Limitations: DeFiLlama public API is rate-limited and may have delays. TVL data is a delayed reference value, not real-time. Protocol search filtering is performed client-side. Not all protocols may be available in the public API. Outputs are compliance prechecks, drafts, or data lookups for human review. They are not official determinations, legal advice, identity confirmation, or certified filings. Related operations in this group include Search DeFi protocols, Get protocol information, Get current protocol TVL. Open the group documentation for the full request schema, field notes, and response examples before integrating.

POST$0.03 USDC

/api/v1/defi-intelligence/chains/tvl

Example request

curl -i -X POST "https://www.brainiac.software/api/v1/defi-intelligence/chains/tvl" \
  -H 'content-type: application/json' \
  -H 'Idempotency-Key: <fresh-64-character-random-hex-key>' \
  --data-binary @- <<'JSON'
{
  "chain": "Ethereum"
}
JSON

An unpaid probe returns HTTP 402 with x402 payment requirements. After paying the exact USDC amount on Base, retry the identical request with a payment-signature header.

FAQ

Do I need an API key? No. Pay the listed USDC amount with x402.
What network? Base (eip155:8453), USDC.
Is this an official determination? No. Results are for human review against the cited sources.

Search DeFi protocols — $0.05 USDC
Get protocol information — $0.02 USDC
Get current protocol TVL — $0.01 USDC

Get TVL by blockchain API

Example request

FAQ

Related operations

Related APIs