| What it does | The verification layer for AI code change
| LLM router that recommends the lowest-cost model for each task
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| Stage | MVP
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
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| Pricing | Free plan: $0/mo with 500 verifications/mo and unlimited local CLI runs. Pro: $59/mo with 10,000 verifications/mo (early access). Scale: $300/mo with 100,000 verifications/mo (early access). Enterprise: Custom pricing (early access).
| Free: first 50 requests per month. Pay as you go: $0.002 per request, drawn from prepaid balance topped up by card in $5 multiples ($5 covers 2,500 requests). Business: $0.002 per request plus organizations and signed DPA on request. Enterprise: negotiated per-request rate with invoicing and custom
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| Key features | - Verify arbitrary diffs from agents, codemods, or humans
- Three-verdict system: SAFE, UNSAFE, UNPROVEN
- Runs test suite on isolated shadow tree copy
- Changed-line coverage attestation for Python
- Reproducible verification report with audit-grade record
- MCP server for AI agents to verify before landing
- CI gate that blocks unsafe merges
- Syntax and imports validation gates
- Runs locally with no code upload to external service
| - Decision receipt recording model, reasoning effort, cache, context, policy, and economics
- Support for Anthropic Claude, OpenAI GPT, and Google Gemini models
- OpenAI-compatible managed proxy
- Bring-your-own-keys (BYOK) on every plan
- Complexity analysis via lightweight ML model
- Per-tier fallback chain for provider availability
- Organization-level observability with Nadir Lens
- Verifier-gated cascade for optional post-generation verification
- Savings accounting and comparison against benchmark model
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| What makes it different | - Only system that proves changed lines are actually tested, not just that tests pass
- Works with any AI coding agent and integrates via MCP
- Code never leaves your machine; runs entirely locally
- Free local CLI with unlimited verifications, paid only for managed infrastructure
| - Runs beside existing gateway without replacement, preserving infrastructure
- Auditable path from shadow observation to reviewed enforcement
- No fee on model savings or percentage markup on model costs
- Decision receipt joins measured execution and customer outcomes
- Self-hosted NadirClaw available free for noncommercial use
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ● no change since last check | 25 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 12 |
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| Citation Flow (Majestic) | 15 | 31 |
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| Referring domains (Majestic) | 4 | 71 |
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Refactron™
Nadir