Franklin

Enables agents to autonomously spend USDC stablecoins from an embedded wallet to pay for external services, API calls, and computational resources. The agent evaluates task requirements, estimates costs, and executes blockchain transactions without human approval for each payment. Implements a trust-bounded spending model where the agent operates within pre-configured budget limits and payment thresholds per transaction type.

Routes tasks to different LLM providers (OpenAI, Anthropic, local Ollama, etc.) based on cost, latency, and capability requirements. The agent evaluates task complexity and selects the optimal model provider, potentially splitting work across multiple models. Integrates with the payment system to select models based on budget constraints and expected output quality.

Uses the agent's blockchain wallet address as its persistent identity and reputation anchor. The wallet serves as both a payment instrument and an identity credential, enabling agents to build on-chain reputation, receive payments, and participate in economic protocols. Agent actions are cryptographically signed using the wallet's private key, creating an auditable transaction history.

Implements HTTP 402 Payment Required protocol for service negotiation and cost signaling. When an API returns a 402 status with pricing information, the agent automatically evaluates the cost, executes payment via its wallet, and retries the request with proof of payment. Enables seamless integration with X.402-compliant services without manual payment handling.

Estimates the cost of tasks before execution by analyzing task complexity, required model capabilities, and external service calls. The agent compares estimated cost against remaining budget and either executes the task, requests approval, or defers to a cheaper alternative. Maintains a budget ledger tracking cumulative spending and remaining allocation per time period.

Executes arbitrary code (JavaScript/TypeScript) in a sandboxed runtime while integrating payment execution for external service calls. When code invokes paid services (e.g., API calls, model inference), the agent automatically handles payment negotiation and execution. Provides a code execution environment where payment is a first-class primitive alongside standard I/O.

Enables agents to pay other agents (identified by wallet address) to perform subtasks or delegate work. One agent can transfer USDC to another agent's wallet with a task specification, and the receiving agent executes the work and returns results. Implements a marketplace-like protocol where agents negotiate fees and service levels.

Enforces configurable spending policies that limit agent autonomy based on rules like maximum per-transaction amount, daily spending caps, blacklisted recipients, and approval thresholds. Policies are evaluated before each payment execution, and violations either block the transaction or escalate to human review. Supports policy versioning and audit logging of all policy decisions.