One API
A unified gateway for managing and routing requests across multiple language model APIs
- Also known as
- one-api
What is One API?
An open-source system for managing and redistributing API access across multiple large language model providers—including OpenAI, Claude, Gemini, and others—through a single OpenAI-compatible API. Deploys as a self-contained binary or Docker container.
One API pricing
We don't have One API's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What One API does
The capabilities that matter for llm gateways, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Openai compatible API
- ✓
- Automatic failover
- ✓
- Routing strategy
- Load based
- Caching
- -
- Virtual key management
- ✓
- Budget spend controls
- ✓
- Rate limiting
- ✓
- Guardrails moderation
- -
- Request cost observability
- ✓
- Streaming support
- ✓
- Deployment model
- Self hosted
- Open source
- ✓
- Pricing model
- Open source self host
Platform & deployment
Independently observed- Web
- Self-hosted
Integrations (26)
Independently observed- Claude⇄•
- Gemini⇄•
- Doubao⇄•
- Ernie⇄•
- Spark⇄•
- Qwen⇄•
- 360 Smart Brain⇄•
- Hunyuan⇄•
- OpenAI
- Azure OpenAI
- Anthropic Claude
- Google Gemini
- DeepSeek
- ByteDance Douyin
- ChatGLM
- Baidu ERNIE Bot
- iFLYTEK Spark
- Alibaba Tongyi Qianwen
- 360 Brain
- Tencent Hunyuan
- Cloudflare Gateway
- Alibaba Qwen•
- Tencent Yuan•
- Baidu Wenxin•
- Byte Doubao•
- 360 AI Brain•
Security & compliance
Known vulnerabilities: 2 (1 in the last 12 months), max severity MODERATE sourcea count reflects scale & disclosure, not quality
One API FAQ
Common questions about One API, answered from independent, dated evidence.
What is One API?
An open-source system for managing and redistributing API access across multiple large language model providers—including OpenAI, Claude, Gemini, and others—through a single OpenAI-compatible API. Deploys as a self-contained binary or Docker container. It is indexed under Llm Gateways.
Source: https://github.com/pricing
Is One API free to use?
One API is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.
Source: https://github.com/pricing
What platforms does One API support?
One API supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Source: https://github.com/pricing
Can One API be self-hosted?
Yes. One API can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.
Source: https://github.com/pricing
What does One API integrate with?
We have confirmed 12 integrations for One API, including OpenAI, Anthropic Claude, Google Gemini, DeepSeek, ByteDance Douyin, ChatGLM, Baidu ERNIE Bot and iFLYTEK Spark, plus 4 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.
Source: https://github.com/pricing
Is One API open source?
Yes. One API is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.
One API alternatives
Other llm gateways we track, ranked by the same independent score.
- OpenRouterUniversal API gateway for routing across hundreds of language models with automatic provider failoverlow · 34%
- UnifyAI agents that improve their performance through continuous learning from real-world production workmedium · 73%
- Cloudflare AI GatewayRoute AI model requests through Cloudflare for monitoring, caching, cost control, and data protectionlow · 35%
- TrueFoundry AI GatewayA unified AI gateway that connects multiple models with intelligent routing, cost controls, and built-in observabilityhigh · 76%
- Keywords AIA comprehensive platform for engineering with large language modelsmedium · 68%
- Eden AIUnified API to access and route between hundreds of AI models from multiple providersmedium · 60%
Compare One API
Side by side against other llm gateways, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for One API, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Capabilities | 92 | 0.08 | 7.4 | ✓ |
| Release cadence | 89 | 0.08 | 7.2 | ✓ |
| Stars | 86 | 0.05 | 4.1 | ✓ |
| Integrations | 32 | 0.05 | 1.7 | ✓ |
| Dependent projects | 0 | 0.05 | 0.0 | ✓ |
| Development activity | 0 | 0.14 | 0.0 | ✓ |
| Security posture | 0 | 0.12 | 0.0 | - |
| Package downloads | 0 | 0.04 | 0.0 | - |
| Security score | 0 | 0.05 | 0.0 | - |
| Developer Q&A activity | 0 | 0.14 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 0 | mediumsource · 2026-10-14 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 6 items | mediumsource · 2026-09-10 · 66% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Open source: Yes · Pricing model: open-source-self-host · Rate limiting: Yes · Deployment model: self-hosted · Routing strategy: load-based · Streaming support: Yes | mediumsource · 2026-10-14 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 12 | mediumsource · 2026-10-14 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | JavaScript | highsource · 2026-10-14 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | MIT | highsource · 2026-10-14 · 95% |
Pricing
Release
Security
| Attribute | Value | Evidence |
|---|---|---|
| Vulnerabilities | Count: 2 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fsongquanpeng%2Fone-api&per_page=100 · Last 12m: 1 · Max severity: MODERATE | highsource · 2026-10-14 · 90% |
| Trust center | https://github.com/security | mediumsource · 2026-10-14 · 60% |
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