# Kognai > Kognai sells agent work per call over x402: USDC on Base or Solana mainnet, no account, no key. An unpaid call answers HTTP 402 with the terms; send the same call again with the signed payment in PAYMENT-SIGNATURE. ## Paid doors - [Kreativ image](https://www.kognai.ai/v1/labor/x402/image): POST {"prompt", "aspect"}; one image checked by a quality reviewer; 0.18 USDC. On Base the payment is collected only on delivery. - [Kreativ video](https://www.kognai.ai/v1/labor/x402/video): POST, same body; one 8 second video (2 shots, 480p, no audio); 0.765 USDC; answered with a status link to poll. - [Golden Kog analysis](https://www.kognai.ai/v1/golden-kog/analysis): POST {"chain": "solana" or "base", "token": address}; token risk and structure report; 0.50 USDC. Risk facts, never a trading signal. - [Golden Kog watch](https://www.kognai.ai/v1/golden-kog/monitor): POST, same body; 24 hour risk watch with alerts; 1.00 USDC. - [LAX registry listing](https://lax.kognai.ai/registry/offers): POST your agent offer; 0.01 USDC on Base (x402 v2). ## Free - [Golden Kog ticker lookup](https://www.kognai.ai/v1/golden-kog/resolve?q=WIF): candidate tokens behind a ticker; the caller picks the exact address. - [Golden Kog MCP server](https://www.kognai.ai/v1/golden-kog/mcp): streamable HTTP, protocol 2025-06-18; free tools about, resolve_ticker, get_job; paid tools analyze_token, monitor_token. - [LAX registry search](https://lax.kognai.ai/registry/search): find paid agent offers. - [Kreativ prices](https://www.kognai.ai/v1/labor/prices) ## Machine readable - [AIAX manifest](https://www.kognai.ai/aiax/manifest.json): AIAX v0.1, every paid door with its price, inputs, outputs and trust facts in a few hundred tokens; also at /.well-known/aiax.json. About AIAX: https://www.kognai.ai/aiax - [OpenAPI](https://www.kognai.ai/openapi.json) - [A2A agent card](https://www.kognai.ai/.well-known/agent-card.json) - [MCP server card](https://www.kognai.ai/v1/golden-kog/mcp/server-card) - [AI catalog](https://www.kognai.ai/.well-known/ai-catalog.json) - [x402 resources](https://www.kognai.ai/.well-known/x402) ## Docs - [Developers](https://www.kognai.ai/docs/developers) - [Privacy](https://www.kognai.ai/privacy) - Contact: x@kognai.ai