Add ledgerlink

[Ixarra]

Checklist

• JSON is valid
• category matches the directory
• description is concise (under ~100 characters)
• url points to a live page
• Logo included in public/logos/ (SVG or PNG, under 50KB) and referenced in JSON as "logo": "/logos/your-project.svg"
• If adding a skill, install_command uses npx skills add format

[vercel]

@Ixarra is attempting to deploy a commit to the x402 Eco Team on Vercel.

A member of the Team first needs to authorize it.

[Ixarra]

Thanks for reviewing.

LedgerBrain’s x402 endpoints are live and publicly testable.

Project

LedgerBrain provides KYT, KYA, and KYE crypto compliance intelligence reports for AI agents and API clients using x402 pay-as-you-go payments.

Website: https://ledgerbrain.io
API portal: https://api.ledgercore.io/api/v1/portals/ledgerbrain

Live x402 endpoints

| Method | Endpoint | Description |
| GET | https://api.ledgercore.io/api/v1/x402/health | Service health check |
| GET | https://api.ledgercore.io/api/v1/x402/catalog | Discover all payable endpoints and current pricing |
| POST | https://api.ledgercore.io/api/v1/x402/kyt/report | Pay-per-report KYT transaction risk analysis |
| POST | https://api.ledgercore.io/api/v1/x402/kya/report | Pay-per-report KYA address risk analysis |
| POST | https://api.ledgercore.io/api/v1/x402/kye/report | Pay-per-report KYE entity intelligence report |

Pricing

• KYT report: $1/report
• KYA report: $1/report
• KYE report: $1/report

Protocol

• x402 v2
• Missing payment returns 402 Payment Required
• Challenge header: PAYMENT-REQUIRED
• Payment retry header: PAYMENT-SIGNATURE

Payment

• Token: USDC
• Production target: Base mainnet + USDC

Agent discovery

• LLM context: https://ledgerbrain.io/llms.txt
• Full LLM context: https://ledgerbrain.io/llms-full.txt
• Agent metadata: https://ledgerbrain.io/.well-known/agent.json
• API catalog: https://ledgerbrain.io/.well-known/api-catalog
• OpenAPI spec: https://api.ledgercore.io/openapi.json