> For the complete documentation index, see [llms.txt](https://quick-ai.gitbook.io/qai-x402-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://quick-ai.gitbook.io/qai-x402-docs/services/eagle-eye.md).

# Eagle Eye

**Version:** 1.0.0\
**Production:** <https://eagle.quickai.build\\>
**Purpose:** Enterprise-oriented **wallet compliance screening** for U.S.-regulated flows. Screens destination addresses against the **OFAC SDN digital currency list** and **Circle USDC `isBlacklisted`** on Base. Returns a structured verdict, risk score, human-readable memo, and **off-chain signed audit receipt** (signing does not require on-chain gas).

## Use cases

* Pre-transfer screening for agents, treasuries, and payment routers
* Batch route checks (up to 100 addresses) with a single route verdict
* Optional wallet activity profile for additional risk context

## Endpoints

| Method | Path             | Price (USDC)           | Auth |
| ------ | ---------------- | ---------------------- | ---- |
| `GET`  | `/health`        | Free                   | None |
| `POST` | `/check`         | $0.005                 | x402 |
| `POST` | `/check/profile` | $0.006                 | x402 |
| `POST` | `/check/batch`   | $0.005 × N (max $0.50) | x402 |

`/health` returns **503** until the first OFAC snapshot sync completes.

## Request bodies

### `POST /check` and `POST /check/profile`

```json
{
  "address": "0x0330070FD38Ec3bB94F58FA55D40368271E9e54A"
}
```

| Field     | Type   | Description                            |
| --------- | ------ | -------------------------------------- |
| `address` | string | EVM address (`0x` + 40 hex characters) |

### `POST /check/batch`

```json
{
  "addresses": [
    "0xabc000000000000000000000000000000000001",
    "0x0330070FD38Ec3bB94F58FA55D40368271E9e54A"
  ]
}
```

| Field       | Type      | Description                                         |
| ----------- | --------- | --------------------------------------------------- |
| `addresses` | string\[] | 1–100 addresses; ordered route; stops at first FAIL |

## Response (single check)

| Field                | Type             | Description                            |
| -------------------- | ---------------- | -------------------------------------- |
| `address`            | string           | Screened address                       |
| `verdict`            | `PASS` \| `FAIL` | Aggregate result                       |
| `is_sanctioned`      | boolean          | OFAC SDN match                         |
| `is_blacklisted`     | boolean          | USDC blacklist on Base                 |
| `risk_score`         | integer          | 0–100                                  |
| `reasons`            | string\[]        | Machine-readable hits                  |
| `memo`               | string           | Audit narrative for humans and logs    |
| `audit_timestamp`    | string           | ISO time of check                      |
| `snapshot_timestamp` | string           | OFAC snapshot used                     |
| `audit_signature`    | string           | Off-chain signature over audit payload |
| `signer_address`     | string           | Service signer address                 |
| `profile`            | object           | Present only on `/check/profile`       |

### Batch response

Includes `results[]` per address and `batch_summary` with `route_verdict` (`CLEAR` or `BLOCKED`), `blocked_at_index`, and counts.

## Architecture

* **Hot path:** In-memory OFAC + blacklist sets; sub-10ms lookups
* **Background:** OFAC JSON sync (default \~10h) + USDC `isBlacklisted` via Base RPC; double-buffered snapshot
* **Signing:** `SERVICE_PRIVATE_KEY` in environment (dedicated wallet; sign-only)
* **x402:** `ExactEvmScheme` on `eip155:8453`
* **Bazaar:** Per-route POST declarations with `method: POST`, `bodyType: json`, and JSON Schema for input/output

## Environment variables

### Required

| Variable              | Description                           |
| --------------------- | ------------------------------------- |
| `CDP_API_KEY_ID`      | Coinbase Developer Platform API key   |
| `CDP_API_KEY_SECRET`  | CDP API secret                        |
| `PAY_TO_ADDRESS`      | Base wallet receiving USDC settlement |
| `SERVICE_PRIVATE_KEY` | Key used to sign audit receipts       |

### Optional

| Variable              | Description                                |
| --------------------- | ------------------------------------------ |
| `REDIS_URL`           | Profile cache (1h TTL on `/check/profile`) |
| `OFAC_LIST_URL`       | Custom OFAC JSON source                    |
| `BASE_RPC_URL`        | Base RPC (default: public mainnet)         |
| `USDC_ADDRESS`        | USDC contract on Base                      |
| `SYNC_INTERVAL_HOURS` | OFAC refresh interval                      |
| `PORT`                | HTTP port (default `8000`)                 |

## Deploy

```bash
cd eagle-eye
cp .env.example .env
docker compose up -d --build
```

Point DNS `eagle.quickai.build` at the VPS. Caddy obtains TLS from `Caddyfile`.

## Examples

### Health

```bash
curl -s https://eagle.quickai.build/health
```

### Unpaid (402)

```bash
curl -i -X POST https://eagle.quickai.build/check \
  -H "Content-Type: application/json" \
  -d '{"address":"0x0330070FD38Ec3bB94F58FA55D40368271E9e54A"}'
```

### Paid (awal)

```bash
npx awal x402 pay https://eagle.quickai.build/check \
  -X POST \
  -d '{"address":"0x0330070FD38Ec3bB94F58FA55D40368271E9e54A"}'
```


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