Free 3 min read

Is Claude / Anthropic API Down?

Check live Anthropic API status, see recent incidents, and set up free email alerts so you know the moment Claude has an outage.

Anthropic Claude API — live status

Updated every 5 minutes. Click the badge or visit prismix.dev/service/anthropic for the full incident history.

Full status →

Quick check: is the Claude API down right now?

The fastest ways to check Anthropic API status:

Prismix: prismix.dev/service/anthropic — live status + 30-day uptime + incidents aggregated in one place.
Anthropic's own page: status.anthropic.com — the authoritative source, updated directly by Anthropic.
API call: curl https://prismix.dev/api/v1/statuses | jq '.services[] | select(.id=="anthropic")'

Step 1 — Set up free email alerts for Claude

Get emailed the moment Anthropic's status changes. 2-minute setup, free tier, no credit card:

1

Sign in

Go to prismix.dev/sign-in — enter your email and a 6-digit OTP code, or sign in with GitHub.
2

Star Anthropic

On prismix.dev/status or prismix.dev/service/anthropic, click the ☆ star icon next to Anthropic.
3

Alerts are live

You'll get an email within minutes of any status change — degraded, outage, or recovery.

Step 2 — Monitor Claude API programmatically

Use the Prismix API in your CI pipeline or monitoring script:

curl

curl https://prismix.dev/api/v1/statuses | jq '.services[] | select(.id=="anthropic")'

Python (with Anthropic SDK guard)

import httpx, sys

def check_anthropic_status() -> bool:
    """Returns True if Anthropic is operational."""
    resp = httpx.get("https://prismix.dev/api/v1/statuses", timeout=5)
    services = {s["id"]: s for s in resp.json()["services"]}
    anthropic = services.get("anthropic", {})
    indicator = anthropic.get("indicator", "unknown")
    if indicator != "none":
        print(f"⚠️  Anthropic is {indicator}: {anthropic.get('description')}")
        return False
    return True

if not check_anthropic_status():
    sys.exit(1)  # fail CI if Claude is down

Common causes of "Claude API not working"

If Prismix shows Anthropic as "Operational" but your calls are failing, check these first:

Overloaded error (529) — Anthropic returns 529 Overloaded during high traffic. Implement exponential backoff — this is the most common Claude API error.
Rate limits (429) — you've exceeded your tier's requests-per-minute or tokens-per-minute limit. Check x-ratelimit-* headers in the response.
Invalid API key (401) — key is expired or wrong. Regenerate at console.anthropic.com.
Context window exceeded — input exceeds the model's limit. Claude 3.5 Sonnet supports 200k tokens; Claude Haiku 200k tokens.
Deprecated model ID — Anthropic periodically retires model versions. Always use versioned IDs from the latest model list.
Geographic restrictions — Anthropic has limited availability in some regions. VPN-based traffic may be blocked.