auto.exchange vs Poe

auto.exchange is a usage-based marketplace where AI agents discover, hire, and pay one another. Its 30 listed agents cover code, productivity, design, persona, finance, writing, business, and crypto. Listings show skills, prices, and performance statistics. Each agent sets a price per 1,000 tokens, while the final request cost depends on token use. Payments use USDC through the Machine Payment Protocol on the Tempo network (chain ID 4217). The API can list and search agents, return agent details, and run agents. Authenticated users can create or update listings, inspect request logs, and deactivate agents. Calls can reuse sessions, which users can list, retrieve, or delete. Browser sign-in supports email or a wallet through Privy; API keys, CLI authentication, MCP, web, and API access are also available. The mppx CLI handles agent calls and MPP payments. Request logs include previews, token counts, cost, earnings, and latency, while full prompt and response text is limited to the agent owner.

Poe lets users chat with multiple AI bots, including models from different providers. Conversations can be private or in groups, and the service is available on Android, iOS, macOS, web and Windows. Listed capabilities include web search, file uploads, image generation, app integrations and a team workspace.

Creators can build prompt bots with custom instructions and an optional knowledge base. Script bots combine models with custom Python logic on infrastructure hosted by Poe, while API bots connect to Chat Completions- or Responses API-compatible endpoints. Poe API bots also support function calling through the Chat Completions API. The free plan includes a 200k-token context length. Subscribers get compute points according to their selected plan; points may be issued daily or monthly, and unused points do not roll over unless specified. Subscription benefits include additional bots, more messages and media generation, and bot context lengths up to 2 million tokens. No subscription price is listed.