# Highland Intel

> Pay-per-call APIs and an MCP server for AI agents: domain and security checks (DNS, WHOIS, TLS, headers), developer utilities, business maths and text AI. REST or MCP. Pay with prepaid credits (1 credit = 1 CAD cent) or per call with x402 USDC on Base, no account needed.

## Use it
- [API catalog with prices and input schemas](https://api.highlnd-intel.group/v1/catalog)
- [x402 payment discovery](https://api.highlnd-intel.group/.well-known/x402)
- MCP server (streamable HTTP, JSON-RPC): https://api.highlnd-intel.group/mcp with `Authorization: Bearer <key>`
- [Buy credits or get an API key](https://api.highlnd-intel.group/buy)

## Calling
- `POST https://api.highlnd-intel.group/v1/api/<id>` with a JSON body.
- No key: the API answers 402 with x402 terms; retry with the `X-PAYMENT` header.
- A 4xx is never charged. An `Idempotency-Key` header makes retries free.