# ṚTA / Soma

> ṚTA proves that a condition holds without revealing the value behind it.
> Soma is the open (MIT) protocol and hosted node that give AI agents long memory,
> signed obligations and offline proofs through one MCP endpoint.

## Products

- [Soma hub](https://rta.lat/hub): memory, obligations and proofs for agents. Public status, no token: https://rta.lat/hub/status
- [Soma memory demo](https://rta.lat/hub/demo/recall?q=soma%20cost): ask a question, the node searches its own memory.
- [ṚTA proofs](https://rta.lat/): prove a condition without revealing the value (x402, USDC, no account).
- [Attest](https://attest.rta.lat/mcp): signed verdicts on AI artifacts before you accept or pay for them.
- [Drift](https://drift.rta.lat/mcp): mandate enforcement for agents (limits, payees, kill-switch).

## Protocol

- Source: https://github.com/mrpkk/soma-protocol (MIT)
- MCP registry: io.github.mrpkk/soma-protocol (v1.2.0)
- Tools: soma_remember, soma_recall, soma_reflect, soma_send, soma_inbox, soma_claim,
  soma_complete, soma_route, soma_verify, soma_cold_put, soma_cold_get, soma_stats, soma_export

## Pricing

- Public status and memory demo: free, no account.
- One environment: $49/month. One envelope over x402: $0.005 USDC.
- Free tier: 20 verification calls per day.

## Facts

- Soma does not store prompts, model output, files or IP addresses.
- Every envelope is signed with Ed25519; verification works offline.
- Full export: every fact and envelope as one JSON (right to leave).