Crypto Address Activity

WATCHER: get a signed callback the moment a crypto address transacts.

Overview

WATCHER: get a signed callback the moment a crypto address transacts. Arm once, pay once (no account, no API key) — we watch Base, Ethereum, or Bitcoin and POST your custom payload to callbackUrl when the address sends/receives native coins, ERC-20s, or ERC-721s. Filter by direction (in/out/both), asset type, and a USD minimum (minValueUsd) to skip dust. Bounded by a 30-day / 25-fire window. Deliveries are EIP-191-signed by our published key (verify offline) and retried with exponential backoff; missed pushes are recoverable via watchers.status. Returns a watcherId.

Endpoint

Method	Endpoint	Price	Description
POST	/v1/marketplace/api/crypto-address-activity	$0.0575	Invoke Crypto Address Activity (Blockchain) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i -X POST https://api.jarvisclaw.ai/v1/marketplace/api/crypto-address-activity \
  -H 'Content-Type: application/json' \
  -d '{}'

# 2. Pay it (the SDK signs and retries for you)
curl -X POST https://api.jarvisclaw.ai/v1/marketplace/api/crypto-address-activity \
  -H 'Content-Type: application/json' \
  -H 'X-PAYMENT: <signed-payload>' \
  -d '{}'

Open in the marketplace