OpenRouter for Claude or a focused gateway: 2026 choice

If you are building something serious on Claude, the gateway question has already come up. Call Anthropic directly, or put a proxy in front for billing, observability and fallbacks, or simply because finance wants one invoice instead of seven. Two names usually land on the shortlist for Claude workloads: OpenRouter and codexkey. From a distance they look alike. Both expose an OpenAI-compatible endpoint, both let you pay without a US card, both forward requests to Anthropic. Up close, they were built for different customers. Here is an honest side-by-side.

Who actually needs a Claude gateway

First, a reality check. You do not need a gateway if you are a US startup with a corporate Amex, you only use Sonnet, and your traffic is small enough that a single Anthropic invoice is fine. Go to Anthropic directly and skip the abstraction tax.

You do want a gateway if at least one of these holds:

• You cannot pay Anthropic directly: no US or EU card, a sanctioned region, or procurement that accepts only local rails.
• You want named keys and usage statistics without building a dashboard of your own.
• You want to swap models, non-Claude ones included, behind one base URL.
• You want a single consolidated invoice in your local currency.

OpenRouter and codexkey both cover the "I cannot or will not call Anthropic directly" case. The open question is which one fits your stack.

What OpenRouter does well

Credit where it is due: OpenRouter is the best gateway on the market for a wide range of models. The pitch is simple, and it delivers on it cleanly:

• Hundreds of models behind one API: Claude, GPT, Gemini, Llama, Mistral, DeepSeek, Qwen and a long tail of open-weights hosts.
• Automatic routing and fallbacks. When a provider degrades or hits rate limits, OpenRouter quietly moves the request to another host of the same model, or, if you allow it, to a different model.
• One OpenAI-compatible endpoint, /v1/chat/completions, so any OpenAI SDK works after a base URL change.
• Card and crypto top-ups. Handy if your accounting is fine with prepaid credits.
• New models on day one. When a new frontier model ships, OpenRouter usually has it within hours.

If your roadmap really involves A/B testing Claude, GPT-5 and Gemini, or you want a fallback chain that survives a full Anthropic outage by switching to a non-Claude model, OpenRouter is the right tool. We will say that again at the end.

How codexkey differs

codexkey is not trying to be OpenRouter. It is a Claude-focused gateway with first-class support for non-Western payment rails and an EU point of presence. The product surface is narrow on purpose, so the trade-offs land in different places.

1. Pricing model

OpenRouter publishes per-model prices that include its margin on top of the upstream provider. The margin is usually small, but it is opaque and varies with the model and the route. You never quite know if you paid Anthropic's rate or a slightly marked-up version of it.

codexkey matches Anthropic's published rates 1:1 for input, output and cached tokens, and adds a transparent flat platform markup. It is the same number for every Claude SKU and is shown on the pricing page. There are no per-model surprises. If Anthropic cuts Sonnet prices tomorrow, your codexkey bill drops the same day by the same percentage. That predictability matters when you model the unit economics of a growing product.

2. Payment options

This is where the customer profiles split sharply.

For a team in Russia, the CIS or another non-Western region, this is not a nice-to-have. It decides if you can pay at all. SBP settles in seconds. YooKassa, a Russian payment service, produces proper ruble invoices your accountant can file. Crypto covers the unusual cases. The card-plus-crypto combination at OpenRouter works for many teams, but it does not satisfy local-rail compliance.

3. Latency and point of presence

Both services are, in the end, proxies to Anthropic, so the latency floor is Anthropic's own. The variable is the extra hop before your request reaches it.

• OpenRouter leans toward the US. Its routing layer mostly sits in North America, which adds round-trip time for European and Eurasian traffic.
• codexkey runs a point of presence in the EU, so clients in Europe, Russia, the Middle East and Central Asia typically get a lower TTFB on streaming responses. In our measurements the gain against a US-routed proxy is tens of milliseconds, and in places hundreds. The exact figure depends on where the request starts.

For chat interfaces, where TTFB sets how fast a reply feels, that hop is noticeable.

4. API surface: OpenAI and Anthropic native

OpenRouter serves the OpenAI-compatible /v1/chat/completions endpoint, and that is its supported surface. It works, but you lose Anthropic-native features that do not map cleanly onto the OpenAI format: extended thinking blocks, the full tool-use schema, prompt caching headers, and the streaming event shape the official Anthropic SDK expects.

codexkey serves both surfaces:

• /v1/chat/completions: drop-in OpenAI compatibility for any existing SDK.
• /v1/messages: the Anthropic-native surface. The official @anthropic-ai/sdk and the anthropic Python SDK run unmodified, and prompt caching, tool use and extended thinking behave exactly as Anthropic documents them.

If you started on Anthropic directly and want a gateway in front without rewriting client code, this matters a great deal.

5. Observability and governance

Both gateways show usage dashboards, but the granularity differs.

codexkey includes:

• Named keys with Premium or Cheap channels.
• Optional Premium fallback for Cheap, and optional expiry.
• Usage statistics for each key.

The dashboard key API does not expose per-key budgets, RPM/TPM, concurrency, model allowlists, IP filters or IDE restrictions. Enforce spending and model policy in your own service.

6. Routing philosophy

Here is the honest core of it. OpenRouter's main strength is multi-provider routing across many models. That is the whole product, and it is genuinely good. If you want one base URL that reaches Claude, GPT, Gemini and a fine-tuned Llama, OpenRouter is built for it.

codexkey is Claude-focused by design. We tune everything for a single model family: caching behaviour, retry logic, preservation of prompt-cache headers, Anthropic-native streaming events. On top of that sits the payment and invoicing layer without which non-Western teams cannot use Claude at all. If your stack is Claude all the way down and your constraints are payment rails or EU presence, that focus is a feature, not a limitation.

Migration: a one-line change

The point of an OpenAI-compatible endpoint is that switching is trivial. A typical migration from OpenRouter (or from Anthropic directly, or from OpenAI) to codexkey with the OpenAI SDK looks like this:

from openai import OpenAI

client = OpenAI(
    base_url="https://api.codexkey.online/v1",
    api_key="cxa_live_...",
)

resp = client.chat.completions.create(
    model="claude-sonnet-5",
    messages=[
        {"role": "system", "content": "You are a concise assistant."},
        {"role": "user", "content": "Summarise the quarterly report."},
    ],
    max_tokens=800,
)
print(resp.choices[0].message.content)

If you prefer the Anthropic-native surface and the official SDK:

import anthropic

client = anthropic.Anthropic(
    base_url="https://api.codexkey.online",
    api_key="cxa_live_...",
)

resp = client.messages.create(
    model="claude-sonnet-5",
    max_tokens=800,
    system="You are a concise assistant.",
    messages=[{"role": "user", "content": "Summarise the quarterly report."}],
)
print(resp.content[0].text)

Same key. Same billing. Two surfaces, your pick.

When OpenRouter wins

We promised an honest section, so here it is. Pick OpenRouter over codexkey if:

• You need real multi-provider routing. Claude, GPT, Gemini and open-weights under one key, with automatic failover.
• You want a fallback chain that survives an Anthropic outage by switching to a non-Claude model. codexkey cannot do that: if Anthropic is down, codexkey is down for that model too.
• You run model bake-offs, where easy provider swaps matter more than depth on Claude.
• You need day-one access to every new open-weights model the community releases.

These are real, legitimate use cases, and we will not pretend otherwise.

When codexkey wins

Pick codexkey over OpenRouter if:

• Your stack is Claude-only or mostly Claude, and you want a gateway that treats that as the main case.
• SBP, YooKassa or local ruble invoicing are the only ways you can pay.
• You want transparent 1:1 Anthropic pricing with one flat platform markup and no per-model margin games.
• You want the Anthropic-native /v1/messages surface, so the official SDK runs untouched and prompt caching is preserved.
• Your users are in Europe, Russia, the Middle East or Central Asia, and a US-routed proxy adds visible TTFB.
• You need named keys, channel selection, expiry and usage statistics.

Bottom line

OpenRouter is the right answer if your problem reads "I want every model behind one URL." codexkey is the right answer if it reads "I want Claude done properly, with payment rails and EU presence that actually work for my team." Strictly speaking, they are not chasing the same customer. They are chasing the same line in a procurement budget, which is not the same thing.

Choose by your constraints. If payments or Anthropic-native depth decide it, you already know which one we recommend.