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The model API for your agents

Every model.
One connection.

Connect your agent programs to 32 models from 7 providers. One API key. Choose the model for each task.

32 modelsSSE streamingPay as you go
OpenAPI proxy

Your agent

One connection

27

models

6

providers

1

API connection

Models

A model for the work.

Compare reasoning, speed, context, and cost. Pick what fits the task.

View all 27 models
Google
99.96%

Google's flagship reasoning model.

ReasoningCodingAgents

Per 1M tokens

$2.00

Latency

4.2s

Context

1.05M

Explore model
Google
99.98%

Gemini 3.8 Flash at the highest thinking level.

ReasoningCodingAgents

Per 1M tokens

$0.75

Latency

2.6s

Context

1.05M

Explore model
Google
99.99%

Gemini 3.8 Flash at its default thinking level.

BalancedCodingVision

Per 1M tokens

$0.75

Latency

1.9s

Context

1.05M

Explore model
OpenAI
99.97%

OpenAI's most capable model for the most demanding work.

ReasoningCodingTools

Per 1M tokens

$10.00

Latency

3.8s

Context

1.05M

Explore model
OpenAI
99.99%

Near-Astra performance at a lower cost.

ReasoningCodingTools

Per 1M tokens

$2.00

Latency

4.2s

Context

1.05M

Explore model
Moonshot
99.96%

Moonshot's 2.8T-parameter open-source flagship.

AgentsCodingVision

Per 1M tokens

Unknown

Latency

3.2s

Context

1M

Explore model
xAI
99.95%

xAI's most capable model.

ReasoningCodingLong context

Per 1M tokens

$2.00

Latency

2.5s

Context

500K

Explore model
GLM
99.96%

Latest GLM release.

CodingAgentsTools

Per 1M tokens

$1.4

Latency

3s

Context

Unknown

Explore model
DeepSeek
99.93%

DeepSeek's flagship reasoning model.

ReasoningMathsCoding

Per 1M tokens

$0.66

Latency

2.8s

Context

1M

Explore model
DeepSeek
99.99%

Cheapest model in the catalog.

CheapFastVision

Per 1M tokens

$0.15

Latency

0.8s

Context

1M

Explore model
Anthropic
99.92%

Anthropic's model for demanding reasoning.

ReasoningCodingAgentic

Per 1M tokens

$10.00

Latency

4.6s

Context

1M

Explore model
Anthropic
99.96%

Anthropic's flagship for agentic coding.

ReasoningCodingAgentic

Per 1M tokens

$4.00

Latency

3.1s

Context

1M

Explore model
The API

Built for agent workloads.

A shared model layer for your applications, tools, and agents.

Choose a model per request

Use a fast model for everyday work and a reasoning model for the difficult parts. Your agent keeps the same API connection.

Connect your agent programs

Give your agent access to the model catalog through one REST API. Authenticate with a workspace key and send your requests.

Keep track of usage

Review token usage, latency, and spending in one place. Set limits on keys by model, budget, or environment.

Stream responses

Receive output as it is generated through server-sent events. The same connection supports conversation and tool calls.

Test before you choose

Try the same task with different models. Compare the result and the cost before deciding what runs in your agent.

Six providers, one connection

Access OpenAI, Anthropic, Google, DeepSeek, Z.ai, and xAI without maintaining a separate integration for each provider.

Playground

Test every model before you commit a line.

Try a prompt, switch models, and compare the response. Find the right model before connecting it to your agent program.

27models
1API key
6providers
Playground
Explain vector databases to my non-technical cofounder, then give me a 30-second demo script.

Think of a vector database as a filing cabinet organized by meaning instead of file name. Hand it a messy idea and it returns the closest ideas...

312 tokens · 1.8s · $0.0003Example
Shorter. Imagine I have 20 seconds.
gpt-6-astra is thinking

Questions

A few things to know.

Need a hand? Get in touch.

What does OpenAPI do?

OpenAPI proxies requests to model providers through one API at api.openapi.shop/v1. Your agent program chooses a model for each request, and OpenAPI handles the provider connection.

Can I connect it to my agent program?

Yes. The API accepts Chat Completions requests and uses bearer-token authentication. Create a workspace key, configure your agent's API connection, and select a model ID from the catalog.

Which models can I use?

The catalog includes 27 models from OpenAI, Anthropic, Google, DeepSeek, Z.ai, and xAI. The models page lists model IDs, context windows, and available rates.

Does it support streaming and tools?

Yes. Set stream to true for server-sent events. The API also accepts tool definitions, image inputs, and structured output as described in the documentation.

What happens to my data?

Request and response bodies are not retained by default. Billing and abuse-prevention metadata is retained for 30 days. Providers process requests under their own policies; zero-retention routing is available on paid plans.

Give your agent more to work with.

Create a key and connect to the model catalog.