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Zerion API - Transaction Subscriptions List
x402
Zerion API - Transaction Subscriptions List is a paid API for AI agents from api.zerion.io, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-24).
Lists active transaction subscriptions for a wallet across 40+ chains, filterable by chain ID.
Price / call$0.01
Success—
StatusUnknown
How this service works
Interpreted wallet data for more than 40 chains and Solana: portfolios, DeFi positions, PnL, transactions and NFTs. REST for apps, x402 pay-per-call for agents.
Output
Returns a JSON:API-formatted array of transaction subscription resource objects, each with an ID, type, and attributes describing the subscription. Also includes pagination links (self, next) to navigate large result sets. Can be filtered by comma-separated chain IDs.
Example use cases
Monitor cross-chain transaction alerts
“List all my active transaction subscriptions across all chains on Zerion so I can see what I'm currently monitoring.”
Audit chain-specific tx subscriptions
“Pull my transaction subscriptions from Zerion filtered to only Ethereum mainnet and Arbitrum — I want to audit what alerts are set up there.”
DeFi agent subscription check
“Before setting up a new transaction alert, check what transaction subscriptions I already have active on Zerion so I don't create duplicates.”
Technical details
Endpoint
GEThttps://api.zerion.io/v1/tx-subscriptions?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to enumerate existing transaction subscriptions for a wallet, particularly when auditing active monitoring setups or checking before creating new subscriptions. Prefer this over general portfolio endpoints when your goal is specifically about subscription management rather than balances or positions. Choose this when you need to filter monitoring setups by specific chain IDs across Zerion's 40+ supported chains.
Side effects
- Invalid or malformed chain ID filter returns 400 Bad Request
- Unauthorized request (missing or invalid API key / x402 payment) returns 401 or 402
- No subscriptions found returns empty data array (not an error)
- Rate limiting returns 429 Too Many Requests
- Unsupported chain ID silently excluded or returns 404
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"id": "<resource id>",
"type": "<resource type>",
"attributes": {}
},
"links": {
"self": "https://api.zerion.io/v1/..."
}
}
}Tags
x402
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