Community web
Free source (opens in a new tab)
Custom
For: Evaluating or non-critical workloads
Limits
- Self-hosted
- Best-effort response
Includes
- Apache 2.0 software
- Public security advisories
1 more
- Public roadmap
CodingDocumented overviewLast checked Oct 1, 2026
Open-source runtime authority layer that enforces budgets and action limits on autonomous AI agents before they execute.
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(open full size in a new tab)Our take: Cycles fits engineering teams running autonomous agents that need a self-hosted, open-source budget and action limiter placed before each model or tool call.
Main limitation: Self-hosting required; managed cloud is not yet available
Cycles fits engineering teams running autonomous agents that need a self-hosted, open-source budget and action limiter placed before each model or tool call. Based on the vendor's documentation, not on a hands-on test.
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Headlines from US outlets, selected automatically — not endorsements. Updated Oct 2, 2026
Prices checked Oct 1, 2026 on the official US pricing page. Official pricing ↗ Prices and limits change often.

Software is free and open source under Apache 2.0; no license key or feature gating
Free source (opens in a new tab)
Custom
For: Evaluating or non-critical workloads
Limits
Includes
$1,500 source (opens in a new tab)
Monthly, annual commitment
$18,000 per year, introductory pricing
For: One production deployment
Limits
Includes
$6,000 source (opens in a new tab)
Monthly, annual commitment
From $72,000 per year
For: Mission-critical or regulated deployments
Limits
Includes
Paid plans add support and assurance only; no percentage of agent spend; self-hosting infrastructure is yours
Not stated
Cycles is an Apache 2.0 open-source, self-hosted service that checks budgets before an AI agent makes a model call or tool call. Applications reserve budget, and a rejected reservation lets the host skip the call, which the site presents as a way to stop runaway spend and risky actions. It ships SDKs and an MCP server with guides for Claude Desktop, Claude Code, Cursor and Windsurf, plus API and protocol references. Paid plans add support and assurance rather than features; a managed cloud is listed as planned.

You provide
You get back
Scenarios are worked out by our editors from the documentation; the actual result depends on your input and plan.

Reserves budget before a call and settles actual usage after Stops runaway spend before it happens
Provides client libraries to call reserve and settle Speeds integration
Exposes Cycles to MCP-capable coding tools with setup guides Add limits to coding assistants
Applies budgets by tenant, workflow or other scope Fine-grained control


Cycles has no public API in its official documentation. API and protocol references are published; 4 SDK languages listed API documentation ↗
Summarized from the vendor's current policies; this is not legal advice and a vendor's badge is not an independent audit.
Self-hosted, so data stays in your infrastructure
"Better suited" is based on documented features and pricing, not on a head-to-head test.
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Yes. The software is Apache 2.0 open source and free to self-host; paid plans add support. source (opens in a new tab)
Not yet; runcycles.ai is planned but not available. source (opens in a new tab)
$1,500 per month billed annually ($18,000 per year, introductory) for one production workload. source (opens in a new tab)
No; support pricing is flat and independent of tokens, requests or agents. source (opens in a new tab)
It returns allow or reject; your application must enforce the result. source (opens in a new tab)
Not verified: SDK language names; Managed cloud pricing; Runtime performance figures.
Every fact about Cycles above comes from the 4 official pages listed here, last compared on Oct 1, 2026; we have not run Cycles ourselves, so it has no editorial score. How we check and re-check pages.
Article updated Oct 10, 2026; prices checked Oct 1, 2026. Outbound links to vendors are plain links; we do not earn commissions. How we review · Report an error
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