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ActOnce Spend Gateway vs Nimbalyst

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

ActOnce Spend Gateway compared with Nimbalyst
DetailActOnce Spend Gateway logo ActOnce Spend GatewayNimbalyst logo Nimbalyst
What it doesPolicy-driven spending controls for AI agents Agent wiki and visual workspace for Claude Code, Codex and other AI coding agents
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Freemium
PricingFree: $0/month (open source, self-hosted). Pro: $24/month with hosted dashboard, 3 agents, 1,000 spend checks/month. Team: $99/month with 10 agents, 10,000 checks/month, team approvals. Business: $299/month with unlimited agents and checks. Free: Nimbalyst app and personal wiki. Wiki Teams: $20 per user per month or $200 per user per year (currently free during beta).
Key features
  • Policy Engine with YAML configuration for amount limits, merchant allowlists, category blocks, business hours, and duplicate windows
  • Duplicate Detection using SQLite to prevent the same purchase twice within a configurable time window
  • Human-in-the-Loop approval with Telegram alerts and dashboard queue for purchases exceeding threshold
  • MCP-Native integration for OpenClaw, Hermes, and any MCP-compatible agent
  • Zero Credential Exposure with no access to cards, tokens, or Stripe credentials
  • Local-first architecture with all policy files, logs, and databases stored on your machine
  • Dry-run and simulation mode for testing policies before deployment
  • WYSIWYG markdown editor with AI-assisted editing
  • Red/green inline diffs for AI changes approval
  • Visual editors for mockups, diagrams, and drawings
  • Parallel agent session management
  • File and session linking
  • Persistent searchable session history
  • Pull request review in Developer Mode
  • MCP server support
What makes it different
  • Policy-driven rules that the agent cannot override, unlike prompt-based guardrails
  • Zero credential exposure means the gateway never sees payment cards or API keys
  • Duplicate detection with SQLite prevents duplicate purchases within a configurable time window
  • Native MCP integration works out of the box with OpenClaw, Hermes, Claude Code, and Cursor
  • Agents write the wiki as they work, eliminating manual documentation
  • Open source and local-first: your data stays on your machine
  • Built by Evergage founders who scaled to $250M ARR
  • One unified workspace instead of multiple disconnected tools
Community votes00
DR (Domain Rating by Ahrefs)23 +1 (up) since last check47 +2 (up) since last check
Trust Flow (Majestic)615
Citation Flow (Majestic)1940
Referring domains (Majestic)12709

5 details filled in for both companies.

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