universal x402 & A2A endpoint
- Is it safe? We have not read the data policy of universal x402 & A2A endpoint yet. Read it on the official site before you upload anything.x402helper.xyz ↗
- Is it free? We have not read the prices of universal x402 & A2A endpoint yet; they are next in our queue. Until then, the official site has them.x402helper.xyz ↗
- What else does this?
Cloudflarefree
Sonarfree
AlchemyfreeSee ↓
not read yet
Use
- For
- API owners and developers monetizing endpoints for AI agents via x402 micropayments
- How it runs
- API
- Used for
- register API endpoints with per-request USDC prices
- let AI agents pay per request for structured data
- accept USDC micropayments across multiple blockchain networks
- Has an MCP server (1 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantsx402helper.xyz ↗
- MCP serverxyz.x402helper/mcpverified in the MCP registry
- Stateanswers, 2 toolschecked 2026-10-29
- Address to connectx402helper.xyz/mcp
This card as JSON, for your agent →
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
Figure and bar: visits/mo, estimate · year: online since
- #1
CloudflareMCP · 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.
4.9MActiveFrom $7/user/mo2009 - #2
Sonar
Analyzes source code statically in IDEs, CI pipelines and pull requests, reporting bugs, code smells, vulnerabilities and coverage against quality gates.
72.4kActiveFrom $34/mo2007 - #3
AlchemyMCP · sign-in
Provides node RPC endpoints, indexed blockchain data APIs, and wallet and transaction APIs across about 100 chains.
174kActiveFrom $0.52 per use2017 - #4
BrowserbaseMCP · open
Provides browser automation and web interaction APIs for agents to navigate, extract data, and complete tasks on websites.
318kActiveFrom $20/mo - #5
CROO
Decentralized infrastructure for building, discovering, and trading autonomous AI agents with on-chain identity and verifiable service contracts.
18.4kActive
Not it? Say what you need
betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
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Sign in to leave a noteWhat is universal x402 & A2A endpoint?
Gates registered API endpoints behind per-request USDC micropayments over the x402 protocol across several chains. It is listed in the Atlas under Developer tools, AI agent payments.
Who is universal x402 & A2A endpoint for?
API owners and developers monetizing endpoints for AI agents via x402 micropayments
What are alternatives to universal x402 & A2A endpoint?
In Developer tools, by use: Cloudflare, Sonar, Alchemy, Browserbase, CROO.
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