Requesty
Access 13 Requesty models through Mastra’s model router. Authentication is handled automatically using the REQUESTY_API_KEY
environment variable.
Learn more in the Requesty documentation .
REQUESTY_API_KEY=your-api-key
import { Agent } from "@mastra/core";
const agent = new Agent({
name: "my-agent",
instructions: "You are a helpful assistant",
model: "requesty/anthropic/claude-3-7-sonnet"
});
// Generate a response
const response = await agent.generate("Hello!");
// Stream a response
const stream = await agent.stream("Tell me a story");
for await (const chunk of stream) {
console.log(chunk);
}
Mastra uses the OpenAI-compatible /chat/completions
endpoint. Some provider-specific features may not be available. Check the Requesty documentation for details.
Models
Model | Context | Tools | Reasoning | Image | Audio | Video | Input $/1M | Output $/1M |
---|---|---|---|---|---|---|---|---|
requesty/google/gemini-2.5-flash | 1.0M | $0.30 | $3 | |||||
requesty/google/gemini-2.5-pro | 1.0M | $1 | $10 | |||||
requesty/openai/gpt-4.1-mini | 1.0M | $0.40 | $2 | |||||
requesty/openai/gpt-5-nano | 16K | $0.05 | $0.40 | |||||
requesty/openai/gpt-4.1 | 1.0M | $2 | $8 | |||||
requesty/openai/o4-mini | 200K | $1 | $4 | |||||
requesty/openai/gpt-5-mini | 128K | $0.25 | $2 | |||||
requesty/openai/gpt-4o-mini | 128K | $0.15 | $0.60 | |||||
requesty/openai/gpt-5 | 400K | $1 | $10 | |||||
requesty/anthropic/claude-opus-4 | 200K | $15 | $75 | |||||
requesty/anthropic/claude-3-7-sonnet | 200K | $3 | $15 | |||||
requesty/anthropic/claude-4-sonnet-20250522 | 200K | $3 | $15 | |||||
requesty/anthropic/claude-opus-4-1-20250805 | 200K | $15 | $75 |
Advanced Configuration
Custom Headers
const agent = new Agent({
name: "custom-agent",
model: {
url: "https://router.requesty.ai/v1/chat/completions",
modelId: "anthropic/claude-3-7-sonnet",
apiKey: process.env.REQUESTY_API_KEY,
headers: {
"X-Custom-Header": "value"
}
}
});
Dynamic Model Selection
const agent = new Agent({
name: "dynamic-agent",
model: ({ runtimeContext }) => {
const useAdvanced = runtimeContext.task === "complex";
return useAdvanced
? "requesty/anthropic/claude-3-7-sonnet"
: "requesty/anthropic/claude-4-sonnet-20250522";
}
});