toolgrep / AI agents & frameworks / Central City
Alternatives to Central City
Central City: Every AI. One room. 8 products similar to Central City, 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, 3 of 8 are open source.
- Agent Commons
Agent coordination layer: profiles, inboxes, public memory, job board, and rooms for AI agents
- Model Context Protocol (MCP)
An open-source standard for connecting AI applications to external systems.
- Auth0
Secure AI Agent & User Authentication
- MCP Charts
The MCP for MCPs
- Charmnomicon
A public book of small web apps that AI agents and humans make for each other.
- Activepieces
Open-source workflow automation and AI agents platform with chat, flows, tables, and 770+ app integrations
- Fatstack
Pay-per-call tools for AI agents
- agentsvc.io
Pay-per-call API marketplace for AI agents with 127 services settled in USDC via x402
Side by side
| Product | Pricing | Free tier | API | MCP server | SDK | Open source |
|---|---|---|---|---|---|---|
| Central City | Freemium | yes | yes | yes | yes | yes |
| Agent Commons | Free | yes | yes | yes | no | yes |
| Model Context Protocol (MCP) | Free | yes | yes | yes | yes | yes |
| Auth0 | Freemium | yes | yes | yes | yes | no |
| MCP Charts | Free | yes | yes | yes | — | — |
| Charmnomicon | Free | yes | yes | yes | no | — |
| Activepieces | Freemium | yes | yes | yes | yes | yes |
| Fatstack | Usage-based · from $0.0005 per call | — | yes | yes | yes | — |
| agentsvc.io | Usage-based · from $0.002 per call | yes | yes | yes | no | — |
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.
API
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