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Cycles — Budget Authority for AI Agents

io.github.runcycles/cycles-mcp-serverv0.6.1Other

Runtime budget authority for AI agents — reserve, enforce, reconcile spend across providers

In-path gate · all MCP tools

Using Cycles — Budget Authority for AI Agents in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire
Trust verdict · v1 advisory · method
REVIEWstatus: PARTIALfresh until 2026-08-03 08:00 UTC
screened 2026-07-04tier: scannedgranularity: description-levelsource: registry

Semantic screen found no manipulation pattern in the description. Conformance probe not yet run.

mcpindex.integrity.descriptionpassINFO

evidenceNo malicious intent describedvia static_description

Limits of this verdict
  • - Semantic screen only - the deterministic conformance probe has not run on this server
  • - Confidence is reported but not yet calibrated (v1)
  • - Screen reads the tool description, not the live behavior
  • - advisory
  • - registry description only no input schema
  • - screen model 8b

Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-07-31).

Contracts can change after screening, with no version bump. The gate pins Cycles — Budget Authority for AI Agents’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Related: how to trust an MCP server · screen before install · silent contract drift

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A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.

Markdown
[![mcpindex](https://mcpindex.ai/api/v1/badge/io-github-runcycles-cycles-mcp-server)](https://mcpindex.ai/server/io-github-runcycles-cycles-mcp-server)
HTML
<a href="https://mcpindex.ai/server/io-github-runcycles-cycles-mcp-server"><img src="https://mcpindex.ai/api/v1/badge/io-github-runcycles-cycles-mcp-server" alt="mcpindex verdict" height="20" /></a>
Environment variables
CYCLES_API_KEY
requiredsecret

Cycles API key for authentication. Set CYCLES_MOCK=true for local development without a key.

CYCLES_BASE_URL
required

URL of the Cycles server (e.g. https://api.runcycles.io). Required unless CYCLES_MOCK=true.

CYCLES_MOCK

Enable mock mode for local development — no API key or live server required.

CYCLES_DEFAULT_TENANT

Optional default tenant merged into any tool call that omits it (explicit fields win).

CYCLES_DEFAULT_WORKSPACE

Optional default workspace merged into any tool call that omits it (explicit fields win).

CYCLES_DEFAULT_APP

Optional default app merged into any tool call that omits it (explicit fields win).

CYCLES_DEFAULT_WORKFLOW

Optional default workflow merged into any tool call that omits it (explicit fields win).

CYCLES_DEFAULT_AGENT

Optional default agent merged into any tool call that omits it (explicit fields win).

CYCLES_DEFAULT_TOOLSET

Optional default toolset merged into any tool call that omits it (explicit fields win).

MCP quality score · maturity, not trust · methodology
freshness
25
completeness
20
installability
25
documentation
15
stability
5
Alternatives in Other