| What it does | Pay-per-crawl infrastructure for AI agents across ten web stacks
| Full-stack Model Context Protocol platform for building, testing, and deploying MCP servers and agentic AI applications
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| Stage | Not given
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| Founded | Not given
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| Based in | US
| US
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| Pricing model | Paid
| Freemium
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| Pricing | API services priced from $0.005 per call in USDC. Pro plan $4.99 per month for up to 5 sites. x402 Starter Kit from $49.
| Hobby: free forever with 30k requests/mo; Pro: $30/org/mo with 300k requests/mo included and $0.10 per 1k extra requests beyond 300k; Enterprise: custom pricing starting at $250/mo with dedicated infrastructure and custom SLAs.
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| Key features | - HTTP 402 payment gating across ten web stacks
- Direct wallet payments with no custody or intermediaries
- Support for WordPress, Drupal, Laravel, Next.js, Node, Cloudflare, nginx, Caddy, Traefik and Python
- Shared crawler catalog with 85 agents
- USDC payments on Base mainnet
- Pro dashboard with paywall monitoring and crawler intel
- Discovery files including /.well-known/x402.json, llms.txt and agents.txt
- PayAI default facilitator with support for custom facilitators
- Published to npm, PyPI, Packagist and drupal.org
| - Open-source TypeScript SDK with declarative decorators and Zod validation
- NitroStudio desktop IDE for visual tool testing and AI reasoning visualization
- NitroCloud serverless hosting with auto-scaling and custom domains
- GitHub integration for one-click deployment
- Enterprise authentication modules
- White-label NitroChat AI interface
- 99.99% uptime SLA on NitroCloud
- API to MCP conversion tools
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| What makes it different | - Single identical payment gate that works across ten different web stacks without requiring accounts or API keys
- 100% of payments go directly to site owners' wallets with no custody or intermediaries
- Runs by one person with nineteen live paid services and no outside capital
- All services self-serve and automated by design with on-chain settlement
| - Designed for teams building custom MCP tools from their own APIs, not a catalog of prebuilt connectors
- Complete full-stack platform combining SDK, IDE, and cloud hosting in one suite
- Open-source core with npm-installable packages for SDK, CLI, and UI widgets
- 80,000 deployments and 13 million requests already in production
- Enterprise-grade security with AES-256 encryption and JWT authentication
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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) | 26 ▼ −1 (down) since last check | 15 ▼ −1 (down) since last check |
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| Trust Flow (Majestic) | 6 | 7 |
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| Citation Flow (Majestic) | 34 | 28 |
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| Referring domains (Majestic) | 168 | 125 |
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NitroStack