# A Helicone alternative with access and billing built in

> Markdown mirror of https://router.one/helicone-alternative for AI assistants and crawlers. Router One is an OpenAI-compatible LLM API gateway.

Helicone is a strong open-source LLM observability platform, and it also ships a self-hostable AI gateway. Router One approaches the problem from the other side: a fully managed, OpenAI-compatible gateway where upstream access, billing, smart routing, and per-request cost traces come built in — one key and one wallet for 25+ supported models, reachable globally and from Mainland China.

## Two different starting points

| Feature | Router One | Helicone |
| --- | --- | --- |
| Product focus | Managed gateway: access, billing, routing, traces in one | Observability platform plus a self-hostable AI gateway |
| Smart routing & fallback | EWMA latency + posted cost + 5xx rate, managed | Routing and load balancing in the gateway you operate |
| Per-request observability | Traces: model, tokens, cost, latency, route decision | Deep request logging, sessions, prompts, and evals |
| OpenAI-compatible API | Yes — Chat Completions, drop-in base URL | Yes — proxy or gateway integration |
| Provider access & billing | Upstream access included through one key and wallet | Bring your own provider keys and billing |
| Accessible from Mainland China | China-reachable endpoint with published latency benchmark | Depends on your deployment and provider routes |
| Payment methods | WeChat Pay, Alipay, Stripe, USDT/USDC; RMB top-up | Card billing for the managed platform |

## Where the managed gateway helps

### No provider keys to manage

Helicone's bring-your-own-keys model keeps you on every provider's billing. Router One includes upstream access through one key and one prepaid wallet — no per-provider invoices to reconcile.

### China access without VPN

Observability layers don't change where your traffic can reach. Based on the China latency benchmark last updated 2026-05-15, Router One measured 110-130ms p50 across Beijing, Shanghai, and Shenzhen; individual networks may vary.

### Local payment built in

Top up in RMB with WeChat Pay or Alipay, by card through Stripe, or with USDT/USDC on six chains — one wallet flow, no foreign credit card required.

## Switch with one base URL change

Router One speaks the OpenAI Chat Completions API, so anything pointed at an OpenAI-compatible proxy or gateway moves over with a base URL and key change — and stops needing per-provider keys at all.

```bash
# Point your client at Router One
export OPENAI_BASE_URL=https://api.router.one/v1
export OPENAI_API_KEY=sk-your-router-one-key
```

## FAQ

### Is Helicone open source?

Yes. Helicone is a popular open-source LLM observability platform with a managed cloud, and it also ships a self-hostable AI gateway. It is a strong choice when deep request analytics, prompt management, and evals are your primary need.

### When is Helicone the better fit?

If you already have provider accounts you want to keep, need prompt-level analytics, sessions, and evals, or want to self-host your gateway and observability stack, Helicone's tooling goes deeper on analysis than a gateway's built-in traces.

### Can I migrate from a Helicone-proxied setup?

Yes. Both speak the OpenAI-compatible Chat Completions shape, so most integrations move with a base URL and API key change. After the switch you no longer need per-provider keys — upstream access is included.

### Can I use Router One together with an observability suite?

Yes. Router One's built-in traces cover model, tokens, cost, latency, and route per request. Teams that want deeper prompt analytics or evals can keep a dedicated observability product in their application layer on top of the gateway.

## See also

- Canonical page: https://router.one/helicone-alternative
- Models and per-model token rates: https://router.one/models (markdown: https://router.one/models.md)
- Pricing: https://router.one/pricing
- API docs (markdown): https://router.one/docs.md
- Company facts: https://router.one/facts/company.md