Claudexia vs Helicone vs Portkey: Claude API Observability and Gateway in 2026

If you ship anything serious on top of Claude in 2026, three names keep showing up in architecture diagrams: Helicone, Portkey, and Claudexia. They get lumped together in "LLM infra" slides, but they are not the same product, and choosing the wrong one costs you either money, latency, or a missing feature you only notice in production.

This is a sales comparison written by the Claudexia team, so we will be honest about where Helicone and Portkey beat us — and where they don't. The short version: Helicone and Portkey are observability and routing layers that sit in front of your Anthropic key. Claudexia is a gateway that replaces the need for an Anthropic contract entirely, and bundles billing, local payments, and an EU/RU footprint on top.

What each product actually does

Helicone — proxy with deep traces

Helicone is, at its core, a logging proxy. You change your base_url to Helicone, keep your own Anthropic API key, and every request flows through their edge. In return you get traces, sessions, prompt versioning, user-level analytics, evals, and a generous free tier. They are open-source-friendly and very popular with teams that already have an Anthropic enterprise contract and just need observability.

What Helicone does not do: pay your Anthropic bill, give you a Russian-payment rail, or sell you tokens. It is a layer on top of an existing relationship.

Portkey — gateway, guardrails, semantic cache

Portkey is more ambitious. It is a full AI gateway: routing across 200+ LLM providers, fallbacks, load balancing, semantic caching, guardrails (PII redaction, output validation), prompt management, and observability. You bring your own keys for each provider, and Portkey orchestrates them. Pricing is per-event (logged request) plus seats.

Portkey shines when you are multi-provider, regulated, or want to A/B test models across vendors. It is overkill if all you do is call Claude.

Claudexia — Claude gateway with billing built in

Claudexia is narrower on purpose. We are a Claude-only gateway: same Anthropic-compatible API surface (/v1/messages, streaming, tools, vision, prompt caching, the new April 2026 Sonnet 4.5 and Opus 4.7 IDs), but you do not need an Anthropic account at all. You top up a balance in rubles, dollars, or USDT and call our endpoint. We handle the upstream contract, the FX, the invoicing, and the fact that Anthropic does not sell directly to half the countries we serve.

We also ship logs, per-key analytics, spend caps, and team accounts — observability that is good enough for 80% of teams. It is not as deep as Helicone's session view or Portkey's guardrail engine. We are not pretending otherwise.

Feature matrix

Pricing models — this is where it gets interesting

The three products charge in fundamentally different shapes, and that determines who wins on TCO at your scale.

Helicone is seat- and volume-based. The free tier covers 100k requests/month; paid plans start around $20/seat with usage tiers above that. You still pay Anthropic separately at full retail. So your bill is Anthropic tokens + Helicone subscription.

Portkey is per-event. You pay per logged request (roughly $0.001–0.003 depending on plan), plus seats for the dashboard. Again, Anthropic is billed separately. At 10M requests/month you are looking at $10k–30k just for the gateway, on top of your Claude bill.

Claudexia charges a margin on tokens — typically 10–15% over Anthropic list price (see our Claude API pricing post). There is no separate observability subscription, no per-event fee, no seat tax. Logs, dashboards, team accounts, and spend caps are included. If you spend $0 on Claude this month, you pay $0 to Claudexia.

For a team doing $5k/month of Claude spend, the math usually shakes out:

• Anthropic direct + Helicone Pro: ~$5,000 + $200 seats ≈ $5,200
• Anthropic direct + Portkey: ~$5,000 + ~$300 events + seats ≈ $5,400
• Claudexia (everything bundled): ~$5,500–5,750

So Claudexia is slightly more expensive in pure dollars at this scale — and dramatically simpler operationally, with one invoice in your local currency and no Anthropic contract negotiation. At the low end (under $500/month) Claudexia is cheaper than either alternative because there are no fixed costs.

Can you stack them?

Yes. Claudexia exposes a standard Anthropic-compatible base URL, so Claudexia + Helicone is a common pattern: point Helicone's proxy at https://api.claudexia.tech/v1 instead of https://api.anthropic.com/v1, and you get Claudexia's billing + Helicone's traces. Claudexia + Portkey works the same way — configure a custom Anthropic provider in Portkey with our base URL.

This is genuinely useful: use Claudexia to handle the money and the upstream relationship, use Helicone or Portkey for the deep observability you actually need. We have customers doing exactly this and we encourage it.

When Helicone wins

• You already have an Anthropic enterprise contract with negotiated rates and you are not changing it.
• You want best-in-class tracing: session replay, prompt diffing, granular per-user analytics, evals.
• You are happy paying in USD via card to a US vendor.
• Your team is small enough that the free tier covers you.

If that sounds like you, use Helicone. They do this better than we do.

When Portkey wins

• You are multi-provider: Claude + GPT + Gemini + open-source, and you need real routing logic.
• You need guardrails: PII redaction, output schema validation, jailbreak detection out of the box.
• You want a semantic cache to deduplicate near-identical prompts and cut spend.
• You are in a regulated industry that needs the audit trail Portkey provides.

Portkey is the right answer for serious AI platforms with multi-vendor strategies.

When Claudexia wins

• You are Claude-only (or Claude-mostly) and don't want to pay for routing you won't use.
• You need to pay in rubles, via СБП, by Russian/CIS bank card, or in crypto (USDT, BTC) — not via international card.
• You cannot or do not want to sign an Anthropic contract directly (compliance, geography, procurement friction).
• You want one invoice for tokens + observability + support, not three vendors.
• You need EU or RU data residency options for your logs.
• You are a solo developer or small team who would rather pay 10–15% margin than juggle two SaaS subscriptions.

This is the bulk of our customer base: indie developers, Russian and EU SMBs, agencies billing clients in local currency, and teams that just want one thing to work.

Code sample — same client, different gateways

The Anthropic SDK is identical across all three. You only change base_url and the key.

from anthropic import Anthropic

# Direct to Anthropic
client = Anthropic(api_key="sk-ant-...")

# Via Helicone (you still need an Anthropic key)
client = Anthropic(
    api_key="sk-ant-...",
    base_url="https://anthropic.helicone.ai",
    default_headers={"Helicone-Auth": "Bearer sk-helicone-..."},
)

# Via Portkey
client = Anthropic(
    api_key="sk-ant-...",
    base_url="https://api.portkey.ai/v1",
    default_headers={"x-portkey-api-key": "..."},
)

# Via Claudexia (no Anthropic key needed)
client = Anthropic(
    api_key="cxa_live_...",
    base_url="https://api.claudexia.tech/v1",
)

msg = client.messages.create(
    model="claude-sonnet-4.5",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Compare gateways."}],
)
print(msg.content[0].text)

Stacking Claudexia + Helicone:

client = Anthropic(
    api_key="cxa_live_...",
    base_url="https://anthropic.helicone.ai",
    default_headers={
        "Helicone-Auth": "Bearer sk-helicone-...",
        "Helicone-Target-Url": "https://api.claudexia.tech/v1",
    },
)

You now get Claudexia's billing and Helicone's traces in one pipeline.

Bottom line

Helicone and Portkey are excellent products and we recommend them all the time. They are observability and routing layers — they assume you already have an Anthropic relationship and want to instrument it.

Claudexia solves a different problem: getting Claude in production with a single invoice, local payments, and zero contract friction, with observability good enough for most teams baked in. If you are in Russia, the CIS, or the EU, or you simply want one bill instead of three, start with us. If you need the deepest traces or multi-provider guardrails, stack Helicone or Portkey on top — we are designed to play nicely with both.

The least useful question is "which one is best." The right question is "what is actually on fire in my stack right now" — billing, observability, or routing — and pick the tool that puts out that fire.

Spin up a Claudexia key in two minutes at claudexia.tech, top up $5, and point any of these tools at our endpoint to see the difference.