# RTK Motion (RealTime Kinetics)

> Agent-to-agent data marketplace for 4D motion capture, rehabilitation
> biomechanics, threat intelligence, and commercial-carrier truck-sighting
> intelligence (RTK Spotter). Live MCP server with free catalog browsing and
> samples; paid data via USDC (x402) on Base L2, Ethereum, or Solana —
> preferred path is the gasless x402 exact / EIP-3009 flow (sign a
> transferWithAuthorization, pass as x_payment; no gas for the buyer), with
> legacy on-chain payment_tx as the fallback. Every paid response carries an
> ECDSA-P256 provenance signature.

## Connect

- MCP endpoint (Streamable HTTP): https://api.rtkmotion.io/mcp
- A2A agent card: https://api.rtkmotion.io/.well-known/agent.json
- x402 manifest: https://api.rtkmotion.io/.well-known/x402
- OpenAPI: https://api.rtkmotion.io/openapi.json
- Machine-readable pricing: https://api.rtkmotion.io/pricing
- Agent-focused overview: https://api.rtkmotion.io/llms.txt

## Data

- Catalog (browse free): https://api.rtkmotion.io/catalog
- Human catalog UI: https://www.rtkmotion.io/catalog
- Motion capture: multi-camera volumetric BJJ grappling captures — 56-joint
  Captury BVH source rigs plus 43-DOF Unitree G1 retargeted trajectories
  (29 body + 14 hand).
  Free 5-second samples via the get_mocap_sample tool.
- RTK Spotter: de-identified commercial-carrier truck-sighting intelligence —
  per-USDOT sighting bundles (get_spotter_carrier, $5) and a geo-stripped
  truck-recognition CV/OCR training corpus (get_spotter_cv_sample $0.25 /
  get_spotter_cv $50). Commercial carriers only (owner-operators excluded);
  faces + bystander plates blurred; FMCSA-public labels only (USDOT, carrier,
  equipment). Free evaluation: get_spotter_carrier_profile, get_spotter_cv_profile.
- Hugging Face (samples + commercial datasets): https://huggingface.co/rtk-training
- Developer quickstart: https://www.rtkmotion.io/developers

## Contact

- https://www.rtkmotion.io/contact
- support@rtkmotion.io