toolgrep / APIs & backend / Astro Agents
Alternatives to Astro Agents
Astro Agents: Verifiable planetary timing data for market analysis and astrology. 8 products similar to Astro Agents, compared on pricing, free tier, API, MCP server, SDK and open source. 5 of 8 have a free tier, 8 of 8 have an API, 8 of 8 offer an MCP server.
- Vextorium
Pay-per-call data APIs for AI agents over x402
- 47620
Pay-per-call data API for AI agents with x402 USDC payments over HTTP and MCP
- Agent Margin Router
Data infrastructure for autonomous AI agents
- Agentropolis
Search engine for agent tools: MCP servers, x402/MPP paid APIs, A2A agents and kits with payment-verified trust.
- PayAPI Market
x402 marketplace for AI agents
- Realask
Verified answers from the real world, 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.
- Ausca
Pay-per-call APIs and MCP services for agents
Side by side
| Product | Pricing | Free tier | API | MCP server | SDK | Open source |
|---|---|---|---|---|---|---|
| Astro Agents | Usage-based · from $0.01 | yes | yes | yes | yes | no |
| Vextorium | Usage-based · from $0.001 | no | yes | yes | no | no |
| 47620 | Usage-based · from $0.001 per call | no | yes | yes | no | — |
| Agent Margin Router | Freemium · from $0.005 per request | yes | yes | yes | yes | — |
| Agentropolis | Free | yes | yes | yes | yes | — |
| PayAPI Market | Free | yes | yes | yes | yes | — |
| Realask | Usage-based · from from $1.00 per job (varies by job class) | yes | yes | yes | — | — |
| minia2a.uk | Usage-based | yes | yes | yes | no | — |
| Ausca | Usage-based | — | yes | yes | yes | — |
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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