@agent-inc/ai-sdk-provider

Vercel AI SDK provider for Agent Inc. — access Claude, GPT, Gemini, DeepSeek, Grok and 30+ models through a single provider. Pay with an API key or trustless per-request SOL micropayments via the x402 protocol on Solana.

Installation

npm install @agent-inc/ai-sdk-provider
# or
pnpm add @agent-inc/ai-sdk-provider
# or
bun add @agent-inc/ai-sdk-provider

For x402 SOL payment mode (optional):

npm install @agent-inc/ai-sdk-provider @solana/kit

Quick Start

API Key Mode

The simplest way to get started. Pass your API key directly or set the AGENTINC_API_KEY environment variable.

import { createAgentInc } from "@agent-inc/ai-sdk-provider";
import { generateText } from "ai";

const agentinc = createAgentInc({
  apiKey: process.env.AGENTINC_API_KEY,
});

const { text } = await generateText({
  model: agentinc("anthropic/claude-sonnet-4"),
  prompt: "What is Agent Inc.?",
});

Or use the default instance which reads from the AGENTINC_API_KEY env var:

import { agentinc } from "@agent-inc/ai-sdk-provider";
import { streamText } from "ai";

const result = streamText({
  model: agentinc("anthropic/claude-sonnet-4"),
  prompt: "Explain the x402 payment protocol",
});

for await (const chunk of result.textStream) {
  process.stdout.write(chunk);
}

x402 SOL Payment Mode

Trustless, per-request micropayments on Solana. No API key needed — pay directly from your wallet for each inference call.

import { createAgentInc } from "@agent-inc/ai-sdk-provider";
import { generateText } from "ai";
import { readFileSync } from "fs";
import { homedir } from "os";
import { join } from "path";

// Load your Solana keypair (64 bytes: 32 private + 32 public)
const keypair = new Uint8Array(
  JSON.parse(readFileSync(join(homedir(), ".config/solana/id.json"), "utf-8")),
);

const agentinc = createAgentInc({
  solanaSecretKey: keypair,
  solanaNetwork: "solana-devnet", // Use "solana" for mainnet
});

const { text } = await generateText({
  model: agentinc("openai/gpt-5-mini"),
  prompt: "How do Solana micropayments work?",
});

How x402 works under the hood:

1. The provider sends your request to the AgentInc API
2. The server responds with HTTP 402 and SOL payment requirements
3. The provider automatically builds a SOL transfer transaction, signs it with your keypair, and retries with the payment attached
4. The server verifies and settles the payment on-chain, then streams the AI response

Supported Models

All models on the Vercel AI Gateway are supported. Popular picks:

| Model ID | Price (in / out per 1M tokens) | | ----------------------------- | ------------------------------ | | anthropic/claude-haiku-4.6 | Fast, cost-efficient (default) | | anthropic/claude-sonnet-4.6 | Balanced | | anthropic/claude-opus-4.6 | Highest capability | | openai/gpt-5-nano | $0.05 / $0.40 | | openai/gpt-5-mini | $0.25 / $2.00 | | openai/gpt-5.4 | $2.50 / $15.00 | | google/gemini-2.5-flash | $0.30 / $2.50 | | google/gemini-2.5-pro | $1.25 / $10.00 | | deepseek/deepseek-v3.2 | $0.28 / $0.42 | | xai/grok-4-fast-reasoning | $0.20 / $0.50 |

Any provider/model string is accepted — the type hints provide autocomplete, not restrictions.

Embedding models:

| Model ID | Description | | ------------------------------- | ------------------- | | openai/text-embedding-3-large | 1536-dim embeddings | | openai/text-embedding-3-small | 512-dim embeddings |

Configuration

import { createAgentInc } from "@agent-inc/ai-sdk-provider";

const agentinc = createAgentInc({
  // API key auth (reads AGENTINC_API_KEY env var if omitted)
  apiKey: "sk-...",

  // Custom API base URL
  baseURL: "https://agentinc.fun/api/v1",

  // Extra headers for all requests
  headers: { "X-Custom": "value" },

  // x402 SOL payment options (alternative to apiKey)
  solanaSecretKey: keypairBytes, // 64-byte Uint8Array
  solanaNetwork: "solana", // "solana" | "solana-devnet"
  solanaRpcUrl: "https://my-rpc.com", // Custom RPC endpoint
});

Embeddings

import { createAgentInc } from "@agent-inc/ai-sdk-provider";
import { embed } from "ai";

const agentinc = createAgentInc();

const { embedding } = await embed({
  model: agentinc.embeddingModel("openai/text-embedding-3-large"),
  value: "What is the meaning of life?",
});

Environment Variables

| Variable | Description | | ------------------ | -------------------------------------------------------- | | AGENTINC_API_KEY | API key for bearer token auth (used by default instance) |

Links

• Agent Inc.
• x402 Protocol
• Vercel AI SDK
• Solana Kit

License

MIT