# Frederick & Sons

> Trust infrastructure for tokenized assets and autonomous agents. Self-hostable software
> modules, decision-support tools, and APIs, sold as one-time perpetual licenses. BYOC — you
> hold your own keys and funds. Software and decision-support only: not a securities offering,
> not investment, legal, or tax advice, and we never custody or transfer customer funds.

## Flagship products

- [Fifty50](https://frederickandsons.xyz/fifty50/): fair, explainable equity-split engine plus a co-founder marketplace. Agent-first — usable over a REST API. OpenAPI spec: https://frederickandsons.xyz/fifty50/v1/openapi.json
- [Sentinel](https://frederickandsons.xyz/sentinel/): fail-closed compliant mint and trustless agent settlement on XRPL and Coreum.
- [Preacher Wallet](https://frederickandsons.xyz/wallet.html): AI-native, non-custodial wallet you speak to. Balances, charts, and history in plain language across XRPL, Solana, and Coreum. Windows early access.
- [SMB Automations](https://frederickandsons.xyz/smb/): done-for-you inbox triage, voice answering, and invoice chasing for small businesses.

## Store (self-hostable modules — one-time license)

- [Storefront](https://frederickandsons.xyz/store/): full catalog, live in-browser demos (no signup), and checkout.
- [Verified Toolkit — $190](https://frederickandsons.xyz/store/module-the-verified-toolkit.html): 20+ independently-tested building blocks for agent and settlement systems.
- [Tokenized Partnerships — $12,000](https://frederickandsons.xyz/store/module-tokenized-partnerships.html): turn a deal into a compliant on-chain partnership.
- Suites (licensed individually or in the stack): Compliance Stack ($15,000), Settlement Suite ($16,000), Capital Markets ($18,000), Oracle Suite ($12,000), Dispute Resolution ($9,000).
- [Own It — Complete Stack — $24,900](https://frederickandsons.xyz/store/checkout.html?slug=stack): every suite and primitive, perpetual, self-hosted.

## For developers and agents

- Fifty50 OpenAPI 3.1 spec: https://frederickandsons.xyz/fifty50/v1/openapi.json
- Developer API reference: https://frederickandsons.xyz/fifty50/developers
- Fifty50 MCP server (live): https://frederickandsons.xyz/fifty50/mcp — Streamable HTTP transport, MCP protocol 2025-06-18. Agents can `initialize` and call tools directly.
- Self-serve API key (no human, no signup): `POST https://frederickandsons.xyz/fifty50/v1/keys` returns a free-tier key instantly. Send it as the `X-API-Key` header for higher rate limits. Revoke via `POST /fifty50/v1/keys/revoke` with the key.
- Checkout is on-chain in XRP or RLUSD (crypto today; card coming). Licenses are delivered on payment.
- Verify us (no trust required): https://frederickandsons.xyz/.well-known/attestations.json — signed ed25519 attestations you can check yourself against the XRPL checkout account's on-ledger key.

## Legal

- Terms of service: https://frederickandsons.xyz/terms
- Privacy policy: https://frederickandsons.xyz/privacy
- Refund & recovery: https://frederickandsons.xyz/refund

## Contact

- Founder-led. Email: FrederickFinancial@proton.me