Alternatives to Popdot AI
Popdot AI: Rent idle domains to AI agents by the hour, day, or month. 8 products similar to Popdot AI, compared on pricing, free tier, API, MCP server, SDK and open source. 6 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
- minia2a.uk
Marketplace of 1,600+ pay-per-call API services for AI agents, settled in USDC on Base via the x402 protocol.
- FiatDock
MCP marketplace where AI agents buy services per call in USDC over x402
- nohumans.directory
A machine-readable registry of paid x402 APIs and datasets, verified by paying endpoints with real USDC and publishing purchase outcomes.
- 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
- 402cron
Scheduled webhook delivery for AI agents, paid per run in USDC on Base via x402
- xCloud
Managed hosting and server management for WordPress, Laravel, Node.js, Docker and AI agents.
Side by side
| Product | Pricing | Free tier | API | MCP server | SDK | Open source |
|---|---|---|---|---|---|---|
| Popdot AI | Free | yes | yes | yes | — | — |
| PayAPI Market | Free | yes | yes | yes | yes | — |
| minia2a.uk | Usage-based | yes | yes | yes | no | — |
| FiatDock | Freemium | yes | yes | yes | yes | yes |
| nohumans.directory | Free | 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 | — |
| 402cron | Usage-based · from $0.0005 per delivery attempt | no | yes | yes | no | no |
| xCloud | Freemium · from $5/mo (managed hosting); free tier for first self-managed server; AI agent hosting from $9.99/mo; reseller from $25/mo | 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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