Morph
Access 3 Morph models through Mastra’s model router. Authentication is handled automatically using the MORPH_API_KEY
environment variable.
Learn more in the Morph documentation .
MORPH_API_KEY=your-api-key
import { Agent } from "@mastra/core";
const agent = new Agent({
name: "my-agent",
instructions: "You are a helpful assistant",
model: "morph/auto"
});
// 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 Morph documentation for details.
Models
Model | Context | Tools | Reasoning | Image | Audio | Video | Input $/1M | Output $/1M |
---|---|---|---|---|---|---|---|---|
morph/morph-v3-large | 32K | $0.90 | $2 | |||||
morph/auto | 32K | $0.85 | $2 | |||||
morph/morph-v3-fast | 16K | $0.80 | $1 |
Advanced Configuration
Custom Headers
const agent = new Agent({
name: "custom-agent",
model: {
url: "https://api.morphllm.com/v1/chat/completions",
modelId: "auto",
apiKey: process.env.MORPH_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
? "morph/auto"
: "morph/morph-v3-fast";
}
});