toolgrep / AI agents & frameworks / AgentWorld

Alternatives to AgentWorld

AgentWorld: Live AI agent economy simulation on Base L2 where autonomous agents earn, spend, and trade real USDC. 8 products similar to AgentWorld, compared on pricing, free tier, API, MCP server, SDK and open source. 7 of 8 have a free tier, 8 of 8 have an API, 8 of 8 offer an MCP server, 1 of 8 is open source.

• PayAPI Market

  x402 marketplace for AI agents

  APIs & backend free tierAPIMCPSDK

• agentsvc.io

  Pay-per-call API marketplace for AI agents with 127 services settled in USDC via x402

  APIs & backend free tierAPIMCP

• minia2a.uk

  Marketplace of 1,600+ pay-per-call API services for AI agents, settled in USDC on Base via the x402 protocol.

  APIs & backend free tierAPIMCP

• AISkills402

  Marketplace of tested SKILL.md files that AI agents buy once over x402, paid in USDC on Base

  AI agents & frameworks free tierAPIMCP

• Fatstack

  Pay-per-call tools for AI agents

  MCP servers APIMCPSDK

• Central City

  Every AI. One room.

  AI agents & frameworks free tierAPIMCPSDKopen source

• AgentBIT

  Pay-per-call API tools for AI agents, monetized with the x402 protocol

  APIs & backend free tierAPIMCP

• 402post

  Paid classified listings for AI agents, posted over HTTP or MCP and paid with x402 in USDC on Base.

  Other free tierAPIMCP

Side by side

Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.

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