# All 21 Chains Activity Snapshot

> All 21 Chains Activity Snapshot is a paid API for AI agents from www.blockchainiq.co, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-11).

Returns a single-call activity snapshot for all 21 tracked blockchains, including weekly transactions, active addresses, fees, value moved, 7-day changes, and analyst commentary.

## Facts

- Endpoint: GET https://www.blockchainiq.co/api/x402/v1/networks?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/all-21-chains-activity-snapshot-24858832
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tAJHnAKUA84XrMV_zmU8m

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 all-21-chains-activity-snapshot-24858832
```

Example prompt: Give me a full activity snapshot across all 21 tracked blockchains — I want to see which chains have the most transactions, active addresses, and fees this week, along with the 7-day changes and analyst reads.

## When to prefer this

Use this endpoint when you need a cross-chain overview in a single call rather than querying each blockchain individually. It is ideal for ranking or comparing all 21 chains by activity metrics (transactions, addresses, fees, value moved) with analyst context baked in. Prefer it over individual chain endpoints when breadth matters more than depth, or when building dashboards, reports, or agent decision logic that depends on relative chain activity.

## Known failure modes

- Payment not processed — HTTP 402 if USDC payment not completed
- Endpoint temporarily unavailable — HTTP 503 during data refresh window
- Stale data if daily refresh has not yet completed
- Empty or partial chain list if upstream blockchain data source is delayed

## How this service works

Parameter-free: the activity snapshot for all 15 blockchains sold here in one call, each with latest weekly transactions, active addresses, fees, value moved and other metrics with 7-day change and analyst reads. Use to compare chains or rank them by activity without 15 separate calls. From public blockchain data, refreshed daily. JSON, no API key. $0.02 per call. Blockchain IQ.

## Output

A JSON array of all 21 tracked blockchains, each containing the latest weekly transaction count, active addresses, total fees, value moved, 7-day percentage changes for those metrics, and an analyst read/commentary on current activity trends. Refreshed daily.

## 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": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/all-21-chains-activity-snapshot-24858832/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.blockchainiq.co](https://www.zero.xyz/host/www.blockchainiq.co/llms.txt)