# Council of AI — Wrapper Changes Delta Feed

> Council of AI — Wrapper Changes Delta Feed is a paid API for AI agents from councilof.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Returns the latest escrow and wrapped-supply deltas for a specific USDC-collateralized wrapper asset tracked by the Council of AI measurement platform.

## Facts

- Endpoint: GET https://councilof.ai/api/wrapper/changes?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/council-of-ai-wrapper-changes-delta-feed-d79e89e1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mmQAzp18kOejLHdAyU3GQ

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 council-of-ai-wrapper-changes-delta-feed-d79e89e1
```

Example prompt: Can you check the latest escrow and wrapped supply delta for usdc.e on Arbitrum from the Council of AI wrapper changes feed?

## When to prefer this

Use this endpoint when you need near-real-time delta snapshots of escrow and wrapped supply changes for a USDC-collateralized wrapper asset tracked by Council of AI, particularly when you require checkable, schema-versioned evidence rather than raw chain data. Prefer this over direct chain queries when you need the Council of AI's signed, auditable data format.

## Known failure modes

- Invalid or unrecognized asset identifier returns an error or empty response
- Payment not included or insufficient USDC causes 402 Payment Required
- Network or chain-specific data unavailability may return stale or null deltas
- Malformed request missing required parameters returns a 400 error

## How this service works

We measure how AI systems behave against frozen, published tests and publish checkable evidence. Issued measurement cards are signed; unsigned supporting runs are labelled. Read the live board and corrections ledger.

## Output

A JSON object containing the asset id (e.g. 'usdc.e:arbitrum'), the current state label (e.g. 'DELTA_READ'), the schema version, and decimal values for escrow_delta and wrapped_supply_delta, reflecting the most recent change snapshot for that wrapper asset.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "id": "usdc.e:arbitrum",
  "state": "DELTA_READ",
  "schema": "csoai.wrapper.changes/0.1",
  "escrow_delta": "<decimal>",
  "wrapped_supply_delta": "<decimal>"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/council-of-ai-wrapper-changes-delta-feed-d79e89e1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from councilof.ai](https://www.zero.xyz/host/councilof.ai/llms.txt)