Is Claude blocked by the Iranian government (filternet)?

No — it's the opposite direction. Anthropic itself does not serve Iran for U.S. export-control / sanctions compliance (a service-side limit), not Iran's domestic DPI — so the key is to let Claude see a clean exit IP in a supported country.

Why am I still blocked in Iran after registering the account abroad?

Because Anthropic checks the source IP on every request, not just at login. A single request that exits from an Iranian IP gets blocked, so you must keep the exit stable in one supported country the whole time.

Will VLESS+Reality definitely work for Claude?

Network and Anthropic policy change, so nothing can guarantee it. Reality keeps the tunnel unfingerprinted inside Iran and the exit stable, which materially raises the success rate, but the result still depends on node quality, region stability, and account/payment compliance.

Can Univista pay for Claude Pro or provide an account?

No. We only provide a clean, stable network exit; we don't pay on your behalf or hold accounts. Payment and account compliance are yours to handle.

Claude в Иране: IP проверяется при каждом запросе

Обновлено 2026-07-06

Illustration: a stable, single-region clean exit IP is the prerequisite for Claude — because Anthropic checks the IP on every request

Why Claude doesn't work in Iran

Opening claude.ai in Iran typically shows “Claude is not available in your country”, blocked sign-up / login, or a subscription that won't take payment. First, the key point: this is not Iran's own filternet blocking you — the direction is the opposite. It is Anthropic that deliberately does not serve Iran (and Syria, Cuba, North Korea, Russia, etc.) for U.S. export-control and sanctions compliance — Iran is not on its list of ~158 supported countries/regions. In other words, the party blocking you sits across the Atlantic, not inside Iran's DPI. Like ChatGPT's regional restriction in Iran, this is a service-side compliance limit, and it's the same class of problem as other services that sanction Iran by IP.

Why Claude is harder to reach than ChatGPT

The key difference: Anthropic checks your source IP on every request, not just at login. So even if you registered the account from a supported country, the moment one request exits from Iran — or the tunnel drops and falls back to an Iranian IP — you're blocked. Anthropic also correlates time zone and usage patterns to detect “transfer-station” accounts and, at the policy level, bars companies more than 50% controlled by Iranian / Russian / Chinese / North Korean entities. The takeaway: you don't need “occasionally connects” — you need an exit that consistently lands in the same supported country and has a low abuse rate. Exit stability matters more than the protocol itself.

Solution: what you need

You typically need: a node service on VLESS + Reality so the tunnel isn't DPI-fingerprinted or throttled inside Iran and the exit region stays stable; a sing-box class client matched to your device that routes claude.ai and anthropic.com domains through the proxy; and a stable subscription with reasonable data. Pricing and terms are on the plans page; Univista offers a free quota to try first.

Step-by-step

Copy your subscription URL from the dashboard or digital card, import it from URL or QR in the sing-box client, and update the nodes.
Pick a low-latency, healthy node whose exit is in a supported country; keep the same exit region for the whole session — do not switch countries mid-way. This is the single most important point under Claude's per-request IP check.
Open claude.ai in a browser and log in; if you use the API / Claude Code, check that the proxy in your terminal and env vars matches the browser (otherwise web works but the API returns 403).
On human-verification or repeated login failures, switch to a cleaner node, clear cookies, retry, and keep the region stable.
Verify your device clock and time zone; a time zone that clearly mismatches the exit country can also raise risk-control.

The reality of paying for Claude Pro (honest note)

The network layer lets you open and use Claude, but payment is a separate hurdle: a Claude Pro subscription usually needs a non-Iranian card, and Iranian-issued cards are almost always declined under sanctions. Univista does not pay on your behalf and does not hold accounts for you — we only provide a clean, stable network exit. Whether you use a foreign card or another compliant method is your own decision and responsibility.

Stability tips

Keep the exit region stable — because Claude checks the IP on every request, country-hopping gets you blocked faster than with ChatGPT.
Exclude the client from battery optimization so the OS doesn't kill it and drop a request back to a local IP.
If only the web works but the API doesn't, the CLI / IDE probably isn't using the proxy: check HTTP(S)_PROXY or whether TUN mode covers the target process.
For the protocol primer see What is VLESS Reality; for client setup see sing-box setup for Persian users; for the overall comparison see what still works in Iran in 2026.

Follow local laws and Anthropic's terms of service: a network solution only addresses the exit IP, not account- or organization-level compliance limits (e.g. a company majority-owned by a sanctioned-region entity can still be barred even with a different IP). This is a technical tutorial and we cannot guarantee third-party availability.

Частые вопросы

Is Claude blocked by the Iranian government (filternet)?: No — it's the opposite direction. Anthropic itself does not serve Iran for U.S. export-control / sanctions compliance (a service-side limit), not Iran's domestic DPI — so the key is to let Claude see a clean exit IP in a supported country.
Why am I still blocked in Iran after registering the account abroad?: Because Anthropic checks the source IP on every request, not just at login. A single request that exits from an Iranian IP gets blocked, so you must keep the exit stable in one supported country the whole time.
Will VLESS+Reality definitely work for Claude?: Network and Anthropic policy change, so nothing can guarantee it. Reality keeps the tunnel unfingerprinted inside Iran and the exit stable, which materially raises the success rate, but the result still depends on node quality, region stability, and account/payment compliance.
Can Univista pay for Claude Pro or provide an account?: No. We only provide a clean, stable network exit; we don't pay on your behalf or hold accounts. Payment and account compliance are yours to handle.

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