AI Agent Products & x402 APIs alternatives

Tools that do what AI Agent Products & x402 APIs does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from AI Agent Products & x402 APIs.

Read 2026-11-04 · AI Agent Products & x402 APIs itself: From $19.99/mo

With a free plan or free to use: Alchemy, PubFi, Cloudflare, mcp-revenue-empire, World Monitor, United States Postal Service.

10 alternativesUnlike AI Agent Products & x402 APIs

#1
Alchemy Developer tools MCP · sign-in
Provides node RPC endpoints, indexed blockchain data APIs, and wallet and transaction APIs across about 100 chains.
Free planMore widely used
174k
Active
From $0.52 per use
2017
#2
Agentropolis Developer tools MCP · open
Indexes MCP servers, paid HTTP APIs and agent kits so agents can search for them and pay per call.
Also: Search
Little sign of use
Active
From $0.01 per use
#3
PubFi Developer tools MCP · open
Serves governance and chain data as callable APIs for AI agents, plus an index for finding crypto data sources.
Free plan
3
Active
From $1 once
#4
Cloudflare Security MCP · open
Proxies website traffic through a global network for CDN caching, DNS, DDoS protection and a web firewall, plus Workers serverless code and zero-trust access.
Free planAlso: Agents
4.9M
Active
From $7/user/mo
2009
#5
Egnyte Developer tools MCP · sign-in
Stores and syncs company files in a cloud repository with co-editing, permission controls, and AI search and agents that run over those files.
Also: Agents, SearchMore widely used
227k
Active
From $22/user/mo
2007
#6
Microsoft Developer tools
Sells Windows, Microsoft 365 and Azure cloud services, plus Surface devices and Xbox consoles.
More widely used
135M
Active
1975
#7
mcp-revenue-empire Developer tools MCP · open
Hosts MCP servers and pay-per-call x402 APIs for agents, plus hash-chained ledgers of Japanese government notices and registers.
Free planCheaper
Little sign of use
From $9/mo
#8
World Monitor Developer tools MCP · sign-in
Streams geopolitical, shipping, market and infrastructure signals onto a live map with correlation alerts.
Free planCosts more
15.8k
Active
From $39.99/mo
2026
#9
United States Postal Service Developer tools MCP · open
Serves U.S. and Canadian postal code data, address validation and radius search through an API or downloadable databases.
Free planCosts more
11.3M
Active
From $49/mo
2003
#10
Qt Group Developer tools MCP · open
Builds cross-platform GUI applications with C++ and QML libraries, plus an IDE, a UI design tool and code analysis and GUI test suites.
Also: ComplianceMore widely used
464k
Maintained
1995

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How this list is made: the words AI Agent Products & x402 APIs is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.