PromptFleet Agents

Rust crates for AI agents, LLM apps, and agentic workflows. WASM-native. Independently usable. Composable.

What you can build

LLM Integration

Provider-agnostic client for OpenAI, Anthropic, Azure. Tool calling, context window management. Works standalone — no SDK required.

Agent-to-Agent (A2A)

Full Google A2A v1.0. JSON-RPC, SSE streaming, agent discovery. Build agents that find and delegate tasks to each other. WASM + native.

AG-UI Streaming

Stream agent execution to user interfaces via SSE. Run status, IO events, enrichers. Serve alongside A2A on one router.

MCP Tools

Connect to any MCP server. Tool discovery, execution, OAuth 2.1. FastMCP compatible. WASM + native.

Production Observability

Structured logging, OpenTelemetry, Prometheus — all WASM-safe. Use in any Rust project, not just agents.

Use What You Need

Every crate works standalone. Import just the LLM client, or just observability, or just MCP. Compose them when you’re ready for the full stack.

WASM + Native

Same codebase compiles to Fermyon Spin (WASM) and Axum (native). No rewrites, no feature-flag gymnastics.

Standards-First

Google A2A v1.0, AG-UI, MCP, JSON-RPC 2.0, OpenTelemetry. Built on open protocols — not locked into a proprietary runtime.

Feature-Flag Composition

Only pay for what you use. Every capability is behind an opt-in feature flag. Zero hidden dependencies.