GET Read the website favicon
/api/v1/devices/{id}/favicon
Return the public favicon of this HTTP or browser monitor as an image. Requires the same workspace read access as the monitor. If no icon is available, the response is empty.
On this page
Access and permissions
Return the public favicon of this HTTP or browser monitor as an image. Requires the same workspace read access as the monitor. If no icon is available, the response is empty.
Browser session: __Host-mb_session cookie.
Machine management credentials in Authorization: Bearer. Check the permissions (scopes) required by the operation.
Parameters and headers
| Field | Location | Type and limits | Required | Meaning |
|---|---|---|---|---|
| id | Path | string; {"format":"uuid"} | Yes | UUID of an owned resource |
| workspace_id | URL query | string; {"format":"uuid"} | No | UUID of an owned resource |
| v | URL query | string; {"pattern":"^[a-f0-9]{64}$"} | No | Website origin version from the favicon URL in the monitor summary. A changed website invalidates the old URL. |
Request body
No request body.
Responses
image/png
| Field | Type and limits | Required | Meaning |
|---|---|---|---|
| $ | string | Yes | — |
image/svg+xml
| Field | Type and limits | Required | Meaning |
|---|---|---|---|
| $ | string | Yes | — |
| Stable error codes |
|---|
| invalid_credential |
| unauthorized |
| Header | Type and limits | Meaning |
|---|---|---|
| Cache-Control | string; {"pattern":"(?:^|,\\s*)no-store(?:,|$)"} | Private API responses prohibit storage. Public OAuth metadata is cached for 300 seconds; live streams additionally prohibit transformation. |
| Content-Language | string; {"enum":["en","de"]} | Language of human-readable response text, resolved from Accept-Language or the documented browser preference. Technical codes and identifiers remain stable. |
| Referrer-Policy | JSON; {"enum":["strict-origin-when-cross-origin","no-referrer"]} | The default referrer policy is strict-origin-when-cross-origin. Provider-login responses use no-referrer to protect login parameters. |
| Vary | string | Responses vary by Accept-Language; browser-rendered responses can also vary by the preference cookie. |
| X-Content-Type-Options | JSON; {"const":"nosniff"} | The browser must use the declared content type. |
| X-Frame-Options | JSON; {"const":"DENY"} | The response must not be embedded in a frame. |
| X-Request-ID | string | Server-generated request identifier. Include this when reporting an error; inbound values are not trusted. |
application/problem+json
| Field | Type and limits | Required | Meaning |
|---|---|---|---|
| $ | Problem | Yes | — |
| $.code | string | Yes | Stable machine-readable error code |
| $.detail | string | Yes | Short localized explanation without internal error details |
| $.instance | string | Yes | Unique relative identifier /api/v1/requests/{request_id}; not a retrievable resource |
| $.message | string | Yes | Temporarily identical to detail for existing clients |
| $.message_key | string | Yes | Stable translation key for changing the displayed language without another request |
| $.message_params | object; {"additionalProperties":true} | Yes | Named, safely rendered message parameters; never arbitrary HTML |
| $.request_id | string; {"pattern":"^[0-9a-f]{32}$"} | Yes | Server-generated diagnostic identifier. It contains no login token or credential. |
| $.status | integer; {"maximum":599,"minimum":400} | Yes | — |
| $.title | string | Yes | Localized HTTP status title |
| $.type | string; {"const":"about:blank"} | Yes | — |
{
"code": "demo",
"detail": "Demo error detail; inspect the documented code.",
"instance": "demo",
"message": "Demo error detail; inspect the documented code.",
"message_key": "errors.requestFailed",
"message_params": {},
"request_id": "00000000000000000000000000000000",
"status": 401,
"title": "Demo error",
"type": "about:blank"
}| Stable error codes |
|---|
| not_found |
| Header | Type and limits | Meaning |
|---|---|---|
| Cache-Control | string; {"pattern":"(?:^|,\\s*)no-store(?:,|$)"} | Private API responses prohibit storage. Public OAuth metadata is cached for 300 seconds; live streams additionally prohibit transformation. |
| Content-Language | string; {"enum":["en","de"]} | Language of human-readable response text, resolved from Accept-Language or the documented browser preference. Technical codes and identifiers remain stable. |
| Referrer-Policy | JSON; {"enum":["strict-origin-when-cross-origin","no-referrer"]} | The default referrer policy is strict-origin-when-cross-origin. Provider-login responses use no-referrer to protect login parameters. |
| Vary | string | Responses vary by Accept-Language; browser-rendered responses can also vary by the preference cookie. |
| X-Content-Type-Options | JSON; {"const":"nosniff"} | The browser must use the declared content type. |
| X-Frame-Options | JSON; {"const":"DENY"} | The response must not be embedded in a frame. |
| X-Request-ID | string | Server-generated request identifier. Include this when reporting an error; inbound values are not trusted. |
application/problem+json
| Field | Type and limits | Required | Meaning |
|---|---|---|---|
| $ | Problem | Yes | — |
| $.code | string | Yes | Stable machine-readable error code |
| $.detail | string | Yes | Short localized explanation without internal error details |
| $.instance | string | Yes | Unique relative identifier /api/v1/requests/{request_id}; not a retrievable resource |
| $.message | string | Yes | Temporarily identical to detail for existing clients |
| $.message_key | string | Yes | Stable translation key for changing the displayed language without another request |
| $.message_params | object; {"additionalProperties":true} | Yes | Named, safely rendered message parameters; never arbitrary HTML |
| $.request_id | string; {"pattern":"^[0-9a-f]{32}$"} | Yes | Server-generated diagnostic identifier. It contains no login token or credential. |
| $.status | integer; {"maximum":599,"minimum":400} | Yes | — |
| $.title | string | Yes | Localized HTTP status title |
| $.type | string; {"const":"about:blank"} | Yes | — |
{
"code": "demo",
"detail": "Demo error detail; inspect the documented code.",
"instance": "demo",
"message": "Demo error detail; inspect the documented code.",
"message_key": "errors.requestFailed",
"message_params": {},
"request_id": "00000000000000000000000000000000",
"status": 404,
"title": "Demo error",
"type": "about:blank"
}| Stable error codes |
|---|
| invalid_request |
| Header | Type and limits | Meaning |
|---|---|---|
| Cache-Control | string; {"pattern":"(?:^|,\\s*)no-store(?:,|$)"} | Private API responses prohibit storage. Public OAuth metadata is cached for 300 seconds; live streams additionally prohibit transformation. |
| Content-Language | string; {"enum":["en","de"]} | Language of human-readable response text, resolved from Accept-Language or the documented browser preference. Technical codes and identifiers remain stable. |
| Referrer-Policy | JSON; {"enum":["strict-origin-when-cross-origin","no-referrer"]} | The default referrer policy is strict-origin-when-cross-origin. Provider-login responses use no-referrer to protect login parameters. |
| Vary | string | Responses vary by Accept-Language; browser-rendered responses can also vary by the preference cookie. |
| X-Content-Type-Options | JSON; {"const":"nosniff"} | The browser must use the declared content type. |
| X-Frame-Options | JSON; {"const":"DENY"} | The response must not be embedded in a frame. |
| X-Request-ID | string | Server-generated request identifier. Include this when reporting an error; inbound values are not trusted. |
application/problem+json
| Field | Type and limits | Required | Meaning |
|---|---|---|---|
| $ | Problem | Yes | — |
| $.code | string | Yes | Stable machine-readable error code |
| $.detail | string | Yes | Short localized explanation without internal error details |
| $.instance | string | Yes | Unique relative identifier /api/v1/requests/{request_id}; not a retrievable resource |
| $.message | string | Yes | Temporarily identical to detail for existing clients |
| $.message_key | string | Yes | Stable translation key for changing the displayed language without another request |
| $.message_params | object; {"additionalProperties":true} | Yes | Named, safely rendered message parameters; never arbitrary HTML |
| $.request_id | string; {"pattern":"^[0-9a-f]{32}$"} | Yes | Server-generated diagnostic identifier. It contains no login token or credential. |
| $.status | integer; {"maximum":599,"minimum":400} | Yes | — |
| $.title | string | Yes | Localized HTTP status title |
| $.type | string; {"const":"about:blank"} | Yes | — |
{
"code": "demo",
"detail": "Demo error detail; inspect the documented code.",
"instance": "demo",
"message": "Demo error detail; inspect the documented code.",
"message_key": "errors.requestFailed",
"message_params": {},
"request_id": "00000000000000000000000000000000",
"status": 422,
"title": "Demo error",
"type": "about:blank"
}| Stable error codes |
|---|
| unavailable |
| Header | Type and limits | Meaning |
|---|---|---|
| Cache-Control | string; {"pattern":"(?:^|,\\s*)no-store(?:,|$)"} | Private API responses prohibit storage. Public OAuth metadata is cached for 300 seconds; live streams additionally prohibit transformation. |
| Content-Language | string; {"enum":["en","de"]} | Language of human-readable response text, resolved from Accept-Language or the documented browser preference. Technical codes and identifiers remain stable. |
| Referrer-Policy | JSON; {"enum":["strict-origin-when-cross-origin","no-referrer"]} | The default referrer policy is strict-origin-when-cross-origin. Provider-login responses use no-referrer to protect login parameters. |
| Retry-After | string; {"pattern":"^[0-9]+$"} | Seconds before retry. Preserve supported idempotency identifiers and respect the operation’s mutation semantics. |
| Vary | string | Responses vary by Accept-Language; browser-rendered responses can also vary by the preference cookie. |
| X-Content-Type-Options | JSON; {"const":"nosniff"} | The browser must use the declared content type. |
| X-Frame-Options | JSON; {"const":"DENY"} | The response must not be embedded in a frame. |
| X-Request-ID | string | Server-generated request identifier. Include this when reporting an error; inbound values are not trusted. |
application/problem+json
| Field | Type and limits | Required | Meaning |
|---|---|---|---|
| $ | Problem | Yes | — |
| $.code | string | Yes | Stable machine-readable error code |
| $.detail | string | Yes | Short localized explanation without internal error details |
| $.instance | string | Yes | Unique relative identifier /api/v1/requests/{request_id}; not a retrievable resource |
| $.message | string | Yes | Temporarily identical to detail for existing clients |
| $.message_key | string | Yes | Stable translation key for changing the displayed language without another request |
| $.message_params | object; {"additionalProperties":true} | Yes | Named, safely rendered message parameters; never arbitrary HTML |
| $.request_id | string; {"pattern":"^[0-9a-f]{32}$"} | Yes | Server-generated diagnostic identifier. It contains no login token or credential. |
| $.status | integer; {"maximum":599,"minimum":400} | Yes | — |
| $.title | string | Yes | Localized HTTP status title |
| $.type | string; {"const":"about:blank"} | Yes | — |
{
"code": "demo",
"detail": "Demo error detail; inspect the documented code.",
"instance": "demo",
"message": "Demo error detail; inspect the documented code.",
"message_key": "errors.requestFailed",
"message_params": {},
"request_id": "00000000000000000000000000000000",
"status": 503,
"title": "Demo error",
"type": "about:blank"
}| Stable error codes |
|---|
| csrf |
| insufficient_scope |
| invalid_origin |
| Header | Type and limits | Meaning |
|---|---|---|
| Cache-Control | string; {"pattern":"(?:^|,\\s*)no-store(?:,|$)"} | Private API responses prohibit storage. Public OAuth metadata is cached for 300 seconds; live streams additionally prohibit transformation. |
| Content-Language | string; {"enum":["en","de"]} | Language of human-readable response text, resolved from Accept-Language or the documented browser preference. Technical codes and identifiers remain stable. |
| Referrer-Policy | JSON; {"enum":["strict-origin-when-cross-origin","no-referrer"]} | The default referrer policy is strict-origin-when-cross-origin. Provider-login responses use no-referrer to protect login parameters. |
| Vary | string | Responses vary by Accept-Language; browser-rendered responses can also vary by the preference cookie. |
| X-Content-Type-Options | JSON; {"const":"nosniff"} | The browser must use the declared content type. |
| X-Frame-Options | JSON; {"const":"DENY"} | The response must not be embedded in a frame. |
| X-Request-ID | string | Server-generated request identifier. Include this when reporting an error; inbound values are not trusted. |
application/problem+json
| Field | Type and limits | Required | Meaning |
|---|---|---|---|
| $ | Problem | Yes | — |
| $.code | string | Yes | Stable machine-readable error code |
| $.detail | string | Yes | Short localized explanation without internal error details |
| $.instance | string | Yes | Unique relative identifier /api/v1/requests/{request_id}; not a retrievable resource |
| $.message | string | Yes | Temporarily identical to detail for existing clients |
| $.message_key | string | Yes | Stable translation key for changing the displayed language without another request |
| $.message_params | object; {"additionalProperties":true} | Yes | Named, safely rendered message parameters; never arbitrary HTML |
| $.request_id | string; {"pattern":"^[0-9a-f]{32}$"} | Yes | Server-generated diagnostic identifier. It contains no login token or credential. |
| $.status | integer; {"maximum":599,"minimum":400} | Yes | — |
| $.title | string | Yes | Localized HTTP status title |
| $.type | string; {"const":"about:blank"} | Yes | — |
{
"code": "demo",
"detail": "Demo error detail; inspect the documented code.",
"instance": "demo",
"message": "Demo error detail; inspect the documented code.",
"message_key": "errors.requestFailed",
"message_params": {},
"request_id": "00000000000000000000000000000000",
"status": 403,
"title": "Demo error",
"type": "about:blank"
}Retries and asynchronous work
This operation reads or validates without applying a resource mutation. Respect rate limits and credential lifetime.
Request examples
Replace demo IDs, timestamps and placeholders with your own values. For a retry, keep the same IDs, time and content. These examples do not run requests on this page.
Keep login links, codes, cookies and keys private. Do not print them in logs or share them in support requests.
curl --silent --show-error --output /dev/null --write-out "%{http_code}\n" \
--request GET \
--header @"$HOME/.config/metribeacon/headers.txt" \
"https://metribeacon.com/api/v1/devices/00000000-0000-4000-8000-000000000001/favicon"
import json
from pathlib import Path
from urllib.request import Request, HTTPRedirectHandler, build_opener
from urllib.error import HTTPError
headers = json.loads((Path.home() / ".config/metribeacon/headers.json").read_text())
request = Request("https://metribeacon.com/api/v1/devices/00000000-0000-4000-8000-000000000001/favicon", data=None, headers=headers, method="GET")
class NoRedirect(HTTPRedirectHandler):
def redirect_request(self, request, fp, code, message, headers, target):
return None
opener = build_opener(NoRedirect())
try:
with opener.open(request, timeout=10) as response:
print(response.status)
except HTTPError as error:
print(error.code)
error.close()
import { readFile } from "node:fs/promises";
import { homedir } from "node:os";
import { join } from "node:path";
const headers = JSON.parse(await readFile(join(homedir(), ".config/metribeacon/headers.json"), "utf8"));
const response = await fetch("https://metribeacon.com/api/v1/devices/00000000-0000-4000-8000-000000000001/favicon", {
method: "GET", headers, redirect: "manual",
signal: AbortSignal.timeout(10000),
});
console.log(response.status);
await response.body?.cancel();
package main
import (
"fmt"
"net/http"
"time"
"encoding/json"
"os"
"path/filepath"
)
func main() {
home, err := os.UserHomeDir(); if err != nil { panic("request failed; credentials and response omitted") }
raw, err := os.ReadFile(filepath.Join(home, ".config/metribeacon/headers.json")); if err != nil { panic("request failed; credentials and response omitted") }
var headers map[string]string
if json.Unmarshal(raw, &headers) != nil { panic("invalid local headers") }
request, err := http.NewRequest("GET", "https://metribeacon.com/api/v1/devices/00000000-0000-4000-8000-000000000001/favicon", nil)
if err != nil { panic("request failed; credentials and response omitted") }
for name, value := range headers { request.Header.Set(name, value) }
client := &http.Client{Timeout: 10*time.Second, CheckRedirect: func(*http.Request, []*http.Request) error { return http.ErrUseLastResponse }}
response, err := client.Do(request)
if err != nil { panic("request failed; credentials and response omitted") }
defer response.Body.Close()
fmt.Println(response.StatusCode)
}
Related guides
- HTTP API, OAuth and MCP
Find the user API endpoints, their permissions, fields, examples and response formats.
- GET Read your active device
Read your active device.
- PATCH Update your device
Update your device.
- DELETE Reset shared device charts
Restore automatic charts and their original arrangement using the latest revision. Series and stored measurements remain unchanged.