x401 alternatives

Tools that do what x401 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 x401.

Read 2026-10-27

With a free plan or free to use: GitHub, Agent-Native, Cloudflare, Twilio, Hexmos, LIME, Pipedream.

10 alternativesUnlike x401

#1
GitHub Developer tools
Hosts Git repositories with pull requests, code review, issue tracking and Actions pipelines for building, testing and deploying code.
Free planAlso: Workflow automation, Code generation
42M
From $4/user/mo
2007
#2
Agent-Native Developer tools
Open-source TypeScript framework where one defined action serves the agent, a React UI, HTTP clients and integrations.
Free planMore widely used
1
Active
Free
#3
GitLab Developer tools MCP · sign-in
Hosts source repositories, CI/CD pipelines and security scanning, with AI agents running under the same merge request approvals and audit trail.
Also: Workflow automation, SecurityMore widely used
591k
Active
2011
#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 $20/mo
2009
#5
Twilio Developer tools MCP · open
Sends and receives SMS, email, and voice messages through APIs and manages customer conversations with AI.
Free planOwn MCP server
1.1M
Active
Free plan
2008
#6
Hexmos Developer tools
AI code reviewer that flags logic errors, credential leaks and bugs at commit time before reaching production.
Free planAlso: Code generation, Security
26.2k
Active
From $32/mo
2023
#7
LIME Developer tools
Issues short-lived, domain-bound identity credentials for AI agents to authenticate with MCP servers and services.
Free planAlso: Security
1
Active
Free
#8
Microsoft Developer tools
Sells Windows, Microsoft 365 and Azure cloud services, plus Surface devices and Xbox consoles.
More widely used
135M
Active
1975
#9
Truthlocks Developer tools
Signs records of credentials, documents and AI actions, then lets others check the signature, content and revocation status.
More widely used
1.8k linking domains
Active
Pay per use
#10
Pipedream Automation
Builds workflows that connect APIs through triggers, prebuilt actions and custom Node.js or Python code steps, run on hosted serverless infrastructure.
Free planAlso: Agents
22.5k
Active
From $29/mo

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How this list is made: the words x401 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.