# Zerion API - Transaction Subscriptions List

> 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.

## Facts

- Endpoint: GET https://api.zerion.io/v1/tx-subscriptions?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/zerion-api-transaction-subscriptions-list-2ae38962
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7Ni2vS2j9pc5RP2chHm-2

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability zerion-api-transaction-subscriptions-list-2ae38962
```

Example prompt: Show me all my active transaction subscriptions on Zerion — filter to just Ethereum and Polygon chains.

## When to prefer this

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.

## Known failure modes

- 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

## 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.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "filter[chain_ids]": {
       "type": "string",
       "description": "Comma-separated chain IDs to filter by"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "data"
     ],
     "properties": {
      "data": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "id": {
          "type": "string",
          "description": "Resource ID."
         },
         "type": {
          "type": "string",
          "description": "Resource type."
         },
         "attributes": {
          "type": "object",
          "description": "Resource attributes; see https://developers.zerion.io"
         }
        }
       },
       "description": "Array of JSON:API resource objects."
      },
      "links": {
       "type": "object",
       "description": "Self and pagination links."
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "id": "<resource id>",
   "type": "<resource type>",
   "attributes": {}
  },
  "links": {
   "self": "https://api.zerion.io/v1/..."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/zerion-api-transaction-subscriptions-list-2ae38962/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.zerion.io](https://www.zero.xyz/host/api.zerion.io/llms.txt)