Source: https://cryptanio.com/docs/reference/list-watches/
Contract / release / updated: v1 / 1.0.0 62 / 2026-10-10

[API reference](https://cryptanio.com/docs.html#reference)

# List Monitoring watches

GET `/v1/watches`

Contract v1 / 1.0.0 62 / 2026-10-10

[Markdown](https://cryptanio.com/docs/reference/list-watches/index.md) [OpenAPI](https://cryptanio.com/openapi.json)

Watches of an accessible Monitoring project; project is required unless the key is project-scoped. Continue using next_before.

Key permissions: `watches` / read / `monitoring`.

## Parameters

| Parameter | In | Required | Description |
| --- | --- | --- | --- |
| `project` | query | No | Project ID. Required for listing or creating watches unless the key is project-scoped. For other operations omission uses the operation's account/project context; set it explicitly.; `string`  |
| `chain` | query | No | Network code filter.; `string`  |
| `limit` | query | No | Page size: at most 200. Invalid values use the default; values above 200 are capped.; `integer` Default: `50`; minimum: `1`; maximum: `200` |
| `before` | query | No | Cursor from next_before or the last item's ID on the previous page; newest first.; `string` minLength: `1` |

## Request examples

Examples perform a real operation in your account. Set the environment variables named in the code. Keep your key private; write requests are not retried automatically.



### Shell / cURL

```bash
#!/usr/bin/env bash
set -euo pipefail
: "${CRYPTANIO_PROJECT_ID:?Set CRYPTANIO_PROJECT_ID}"
: "${CRYPTANIO_API_KEY:?Set CRYPTANIO_API_KEY}"
response_file="$(mktemp)"
trap 'rm -f "$response_file"' EXIT
transfer_status=0
http_status="$(curl \
  --silent --show-error --max-time 30 --request GET \
  --header "Authorization: Bearer $CRYPTANIO_API_KEY" \
  --header 'Accept: application/json' \
  --get \
  --data-urlencode "project=$CRYPTANIO_PROJECT_ID" \
  --data-urlencode 'limit=50' \
  "https://api.cryptanio.com/v1/watches" \
  --output "$response_file" --write-out '%{http_code}')" || transfer_status=$?
if [[ "$http_status" == 2?? ]]; then
  cat "$response_file"
  exit "$transfer_status"
fi
printf 'HTTP %s\n' "$http_status" >&2
cat "$response_file" >&2
exit 1
```



[Download example](https://cryptanio.com/files/examples/api/list-watches.sh)



### Go

```go
// Go; standard library only. Run: go run request.go
package main

import (
    "fmt"
    "io"
    "net/http"
    "net/url"
    "os"
    "time"
)

func env(name string) string {
    value := os.Getenv(name)
    if value == "" { fmt.Fprintln(os.Stderr, "Set", name); os.Exit(1) }
    return value
}
func run() error {
    path := "/v1/watches"

    endpoint, err := url.Parse("https://api.cryptanio.com" + path)
    if err != nil { return err }
    query := endpoint.Query()
    query.Set("project", env("CRYPTANIO_PROJECT_ID"))
    query.Set("limit", "50")
    endpoint.RawQuery = query.Encode()

    request, err := http.NewRequest("GET", endpoint.String(), nil)
    if err != nil { return err }
    request.Header.Set("Authorization", "Bearer " + env("CRYPTANIO_API_KEY"))
    request.Header.Set("Accept", "application/json")
    client := &http.Client{Timeout: 30 * time.Second, CheckRedirect: func(*http.Request, []*http.Request) error { return http.ErrUseLastResponse }}
    response, err := client.Do(request)
    if err != nil { return err }
    defer response.Body.Close()
    if response.StatusCode < 200 || response.StatusCode >= 300 {
        body, err := io.ReadAll(response.Body)
        if err != nil { return err }
        return fmt.Errorf("HTTP %d: %s", response.StatusCode, body)
    }
    _, err = io.Copy(os.Stdout, response.Body)
    return err
}
func main() {
    if err := run(); err != nil { fmt.Fprintln(os.Stderr, err); os.Exit(1) }
}
```



[Download example](https://cryptanio.com/files/examples/api/list-watches.go)



### Rust

```rust
// Cargo.toml dependencies:
// reqwest = { version = "=0.12.24", features = ["blocking", "json"] }
// serde_json = "=1.0.145"
use std::{error::Error, io, time::Duration};
use reqwest::{blocking::Client, redirect::Policy, Method, Url};

fn env(name: &str) -> Result<String, Box<dyn Error>> {
    let value = std::env::var(name)?;
    if value.is_empty() { return Err(format!("Set {name}").into()); }
    Ok(value)
}
fn run() -> Result<(), Box<dyn Error>> {
    let mut url = Url::parse("https://api.cryptanio.com")?;
    {
        let mut segments = url.path_segments_mut().map_err(|_| "Invalid base URL")?;
        segments.clear();
        segments.push("v1");
        segments.push("watches");
    }
    url.query_pairs_mut()
        .append_pair("project", &env("CRYPTANIO_PROJECT_ID")?)
        .append_pair("limit", &"50".to_owned());
    let client = Client::builder().timeout(Duration::from_secs(30)).redirect(Policy::none()).build()?;
    let request = client.request(Method::GET, url)
        .header("Authorization", format!("Bearer {}", env("CRYPTANIO_API_KEY")?))
        .header("Accept", "application/json".to_owned());
    let mut response = request.send()?;
    let status = response.status();
    if !status.is_success() { return Err(format!("HTTP {}: {}", status.as_u16(), response.text()?).into()); }
    io::copy(&mut response, &mut io::stdout())?;
    Ok(())
}
fn main() {
    if let Err(error) = run() { eprintln!("{error}"); std::process::exit(1); }
}
```



[Download example](https://cryptanio.com/files/examples/api/list-watches.rs)



### PHP

```php
<?php
// PHP 8 with the cURL extension. Run this on your server.
function env(string $name): string {
    $value = getenv($name);
    if ($value === false || $value === '') throw new RuntimeException('Set ' . $name);
    return $value;
}
try {
    $path = '/v1/watches';

    $query = [
        'project' => env('CRYPTANIO_PROJECT_ID'),
        'limit' => '50',
    ];
    $url = 'https://api.cryptanio.com' . $path . ($query ? '?' . http_build_query($query, '', '&', PHP_QUERY_RFC3986) : '');
    $headers = [
        'Authorization: ' . 'Bearer ' . env('CRYPTANIO_API_KEY'),
        'Accept: ' . 'application/json',
    ];
    $curl = curl_init($url);
    curl_setopt_array($curl, [
        CURLOPT_CUSTOMREQUEST => 'GET',
        CURLOPT_HTTPHEADER => $headers,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_FOLLOWLOCATION => false,
        CURLOPT_CONNECTTIMEOUT => 10,
        CURLOPT_TIMEOUT => 30,
    ]);
    $response = curl_exec($curl);
    if ($response === false) throw new RuntimeException(curl_error($curl));
    $status = curl_getinfo($curl, CURLINFO_HTTP_CODE);
    if ($status < 200 || $status >= 300) throw new RuntimeException('HTTP ' . $status . ': ' . $response);
    echo $response;
} catch (Throwable $error) {
    fwrite(STDERR, $error->getMessage() . PHP_EOL);
    exit(1);
}
```



[Download example](https://cryptanio.com/files/examples/api/list-watches.php)



### Python

```python
# Python 3; standard library only.
import json
import os
import sys
from urllib.error import HTTPError, URLError
from urllib.parse import quote, urlencode
from urllib.request import HTTPRedirectHandler, Request, build_opener

def env(name):
    result = os.environ.get(name)
    if not result:
        raise ValueError("Set " + name)
    return result

class NoRedirect(HTTPRedirectHandler):
    def redirect_request(self, req, fp, code, msg, headers, newurl):
        return None

try:
    path = "/v1/watches"

    query = {
        "project": env("CRYPTANIO_PROJECT_ID"),
        "limit": "50",
    }
    url = "https://api.cryptanio.com" + path + ("?" + urlencode(query) if query else "")
    headers = {
        "Authorization": "Bearer " + env("CRYPTANIO_API_KEY"),
        "Accept": "application/json",
    }
    data = None
    request = Request(url, data=data, headers=headers, method="GET")
    with build_opener(NoRedirect()).open(request, timeout=30) as response:
        if not 200 <= response.status < 300:
            raise ValueError("HTTP " + str(response.status))
        sys.stdout.buffer.write(response.read())
except HTTPError as error:
    print("HTTP " + str(error.code) + ": " + error.read().decode("utf-8", errors="replace"), file=sys.stderr)
    sys.exit(1)
except (ValueError, URLError, OSError) as error:
    print(str(error), file=sys.stderr)
    sys.exit(1)
```



[Download example](https://cryptanio.com/files/examples/api/list-watches.py)



### Node.js

```javascript
// Node.js 18+. Run on your server, never in a browser.
const env = name => {
  const result = process.env[name];
  if (!result) throw new Error(`Set ${name}`);
  return result;
};
try {
  let path = "/v1/watches";

  const url = new URL(path, "https://api.cryptanio.com");
  url.searchParams.set("project", env("CRYPTANIO_PROJECT_ID"));
  url.searchParams.set("limit", "50");
  const headers = {
    "Authorization": "Bearer " + env("CRYPTANIO_API_KEY"),
    "Accept": "application/json",
  };
  const response = await fetch(url, {
    method: "GET", headers, redirect: "manual",
    signal: AbortSignal.timeout(30_000),
  });
  if (!response.ok) throw new Error(`HTTP ${response.status}: ${await response.text()}`);
  if (response.body) {
    for await (const chunk of response.body) process.stdout.write(chunk);
  }
} catch (error) {
  console.error(error.message);
  process.exitCode = 1;
}
```



[Download example](https://cryptanio.com/files/examples/api/list-watches.mjs)

## Responses and errors

### 200 Successful response.

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `data` | `object[]` | Yes |  |
| `next_before` | `string` | No | Next-page cursor; only present when more pages exist.; minLength: `1` |

### 400 Invalid request (bad_request, unsupported_asset).

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `error` | `object` | Yes |  |



### 400 application/json

```json
{
  "error": {
    "code": "forbidden",
    "message": "this API key is read-only"
  }
}
```



### 401 No valid active API key (unauthorized).

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `error` | `object` | Yes |  |



### 401 application/json

```json
{
  "error": {
    "code": "forbidden",
    "message": "this API key is read-only"
  }
}
```



### 403 Key disallows the operation, project, service or IP; email unconfirmed.

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `error` | `object` | Yes |  |



### 403 application/json

```json
{
  "error": {
    "code": "forbidden",
    "message": "this API key is read-only"
  }
}
```



### 404 Object not found within the key's scope (not_found).

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `error` | `object` | Yes |  |



### 404 application/json

```json
{
  "error": {
    "code": "forbidden",
    "message": "this API key is read-only"
  }
}
```



### 409 State conflict, conflicting retry parameters, or payment resource limit (conflict, limit_reached, service_inactive).

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `error` | `object` | Yes |  |



### 409 application/json

```json
{
  "error": {
    "code": "forbidden",
    "message": "this API key is read-only"
  }
}
```



### 429 Too many requests (rate_limited); retry after Retry-After.

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `error` | `object` | Yes |  |



### 429 application/json

```json
{
  "error": {
    "code": "forbidden",
    "message": "this API key is read-only"
  }
}
```



### 500 Internal error (internal).

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `error` | `object` | Yes |  |



### 500 application/json

```json
{
  "error": {
    "code": "forbidden",
    "message": "this API key is read-only"
  }
}
```



### 503 Temporary unavailability (unavailable); retry with backoff.

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `error` | `object` | Yes |  |



### 503 application/json

```json
{
  "error": {
    "code": "forbidden",
    "message": "this API key is read-only"
  }
}
```



[Handling errors and retrying safely](https://cryptanio.com/docs.html#errors)

## Nested objects

### `WatchList`

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `data` | `object[]` | Yes |  |
| `next_before` | `string` | No | Next-page cursor; only present when more pages exist.; minLength: `1` |

### `Watch`

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `id` | `string` | Yes | Opaque identifier; keep it as a string.; minLength: `1` |
| `project_id` | `string` | Yes | Opaque identifier; keep it as a string.; minLength: `1` |
| `service` | `string` | Yes | Project service.; `monitoring` |
| `book_address_id` | `string` | Yes | Matching address-book address ID.; minLength: `1` |
| `status` | `string` | Yes | Project-address attachment state.; `active`, `paused`, `deleted` |
| `chain` | `string` | Yes | Network code. |
| `address` | `string` | Yes | Normalized address. |
| `asset` | `string` | Yes | Assets in the response string; multiple assets are comma-separated. |
| `meta` | `object` | No | Address label and note, if configured. |
| `watched_as` | `string` | No | Additional address identifier when used by the network. |
| `sandbox` | `boolean` | No | true for a test watch; omission means false. |
| `watch_outgoing` | `boolean` | Yes | Whether outgoing operations are monitored. |
| `origin_kinds` | `string[]` | Yes | Ways the address was added to the project. |
| `created_at` | `string` | Yes | UTC date and time in RFC 3339.; `date-time` |

### `ID`

Opaque identifier. Its format is not guaranteed; do not convert to a number.

`string` Opaque identifier. Its format is not guaranteed; do not convert to a number.

### `StringMap`

`object`

### `Error`

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `error` | `object` | Yes |  |