Cycles — Budget Authority for AI Agents

runcycles/cycles-mcp-server

Connects MCP-compatible agents (Claude Desktop, Cursor, Windsurf) to the Cycles budget authority API, giving agents runtime tools to reserve, commit, release, and check budget before expensive operations. You call cycles_reserve before an LLM invocation or tool run, cycles_commit to record actual spend, and cycles_decide to get policy decisions (allow, deny, degrade to cheaper model). The server enforces per-tenant or per-workspace spend caps without changing agent code. Use it when you need multi-tenant agents to self-regulate costs, prevent runaway spend in autonomous loops, or track usage across shared budgets. Ships with mock mode for local dev and prompts that help you design budget strategies.

tools

9

auth

Secret needed

transport

STDIO

env vars

9

last updated

Jul 27, 2026

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