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Saylor Innovations Data Desk – EVM Multi-Chain Activity Map
x402
Saylor Innovations Data Desk – EVM Multi-Chain Activity Map is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-27).
Returns native balance, transaction count, and contract flag for a wallet or contract address across 16 EVM chains in a single call, identifying which chains are active.
Price / call$0.01
Success—
StatusUnknown
How this service works
Where a wallet is active: native balance, transaction count and contract flag on all 16 EVM chains in one call, with the most active chain.
Output
A JSON object containing the queried address, total chains queried and answered, number of active chains, a per-chain array with chain name, native symbol, native balance, outgoing transaction count (nonce), contract flag, response time, and a success flag — plus a plain-language summary note identifying the most active chain and data source.
Example use cases
Cross-chain wallet due diligence
“I need to verify if the address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 has any activity on any EVM chains — can you check all 16 chains and tell me the native balances, transaction counts, and which chain it's most active on?”
Detecting contract vs EOA across chains
“Is 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D a smart contract on any of the major EVM chains, or just a regular wallet? Please scan all 16 chains.”
Airdrop eligibility multi-chain scan
“Before we finalize the airdrop list, can you check if 0xAbCd1234567890EFabcd1234567890efABCD1234 has sent any transactions or holds any native balance on each of the 16 supported EVM chains?”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/chain/activity-map?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single-call snapshot of an address's presence across all 16 major EVM chains simultaneously, rather than querying each chain's RPC individually. Ideal for wallet profiling, airdrop verification, cross-chain due diligence, or any workflow where you need to know which chains an address is live on without managing multiple provider connections.
Side effects
- Invalid or malformed address returns an error or null results
- Chain RPC node timeout causes ok=false for that chain entry
- Address with zero activity on all chains returns chains_active=0 and empty active_chains array
- Rate limiting or payment failure returns HTTP 402 or 429
- Truncated response if chain query time exceeds service timeout
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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