| What it does | An engine for long-running agents that rebuilds its prompt under a cap and runs on your budget
| Spend controls, budgets and approvals for AI agents
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| Stage | MVP
| MVP
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
| Freemium
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| Pricing | Prototype: free during beta, then from December 16, 2026 it costs $1 per 1,000 agent calls after 1,000 monthly included calls. Production: $20 a month with 20,000 agent calls included, then $1 per 1,000 calls after that. Top-ups: $1 per 1,000 calls, from $10 to $500 at a time, never expiring.
| Free plan: $0 during early access with 2 seats and 3 agents. Planned paid plans: Builder at $49/month with 5 seats and 25 agents; Scale at $199/month with 25 seats and 250 agents. Self-hosting is free.
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| Key features | - Prompt rebuilt from journal under token cap at each step to keep it bounded as history grows
- Spending limits checked before each model call at token prices you declare
- Resume after crash without repeating finished actions
- Tool calls returned as actions for your code to carry out
- Proof of what ran: check prompts, re-run engine, download hash-chained journal
- Integrations with Vercel AI SDK, OpenAI Agents SDK, LangGraph, Mastra, Pydantic AI
- MCP server for Claude Code, Claude Projects and Codex
- Works with any model via bring-your-own-key
- TypeScript and Python clients for HTTP API access
| - Onchain allowances and epoch budgets
- Escalation through reporting tree
- Session keys with automatic expiration
- Constitutional governance with veto windows
- Declared flows and human gates
- Slack and Telegram supervision
- Visual org builder and workspace
- Apache-2.0 open source contracts and SDK
- Inference budgets for model and API calls
- Integration with Coinbase AgentKit and Safe
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| What makes it different | - Bounded prompt under a fixed cap while history grows, so costs per call stop climbing on long sessions
- Every run recorded with cryptographic proof: rebuilable prompts, hash-chained journal, re-runnable engine
- Resumes from crash without repeating finished actions using stable idempotency keys
- Budget enforcement before each model call, not reactive overage billing
- No model key storage or logging; your provider bills you directly
| - Bounded blast radius: compromised agents can only spend remaining epoch allowance on whitelisted targets
- Passkey root stays on user's device; cloud holds only scoped, expiring session keys
- Fully self-hostable open protocol with Apache-2.0 licensing
- Approval workflows follow real organizational structure, not smart contract code
- No token or cryptocurrency knowledge required to use the cloud platform
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 9 | 0 |
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| Referring domains (Majestic) | 4 | 0 |
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Argentic
LaCrew