block0
x402 pricing

Five APIs. $0.03 per signal.
Pay only when data lands.

Smart wallets and DNA cost $0.03. Activity, netflow, and token exposure cost $0.05. Paid with USDC over x402 — no subscription, no minimum.

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Smart Wallet
$0.03
USDC / call

Discover smart wallets and inspect six-dimensional WalletDNA.

Smart Money Flow
$0.05
USDC / call

15m activity and 1h netflow from smart-wallet cohorts.

Token Exposure
$0.05
USDC / call

One token's smart holders, flow, buyer quality, state, and signals.

Payment flow

Request → endpoint-specific 402 → paid retry

01

Call without a key

Agent calls any paid endpoint with no block0 credentials.

02

Receive HTTP 402

block0 returns amount, asset, network, payTo, timeout, and protected resource.

03

Retry with payment

Agent signs locally and retries with PAYMENT-SIGNATURE.

API pricing

Small surface area, clear value.

Typical response in ~200ms on 99.9% uptime. The same table is machine-readable at /v1/catalog.

Smart Wallets
GET /v1/smart-walletsSmart Wallet~250ms$0.03
GET /v1/wallet/dnaSmart Wallet~250ms$0.03
Smart Money
GET /v1/smart-money/activitySmart Flow~200ms$0.05
GET /v1/smart-money/netflowSmart Flow~200ms$0.05
Token Exposure
GET /v1/token/smart-exposureToken Exposure~200ms$0.05

Not charged until data is returned

The initial 402 quote, invalid parameters, rate-limit responses, failed payment attempts, and upstream errors do not count as successful data calls.