Replayable autonomous tool execution.
Trust infrastructure for agent tooling — DDC-backed, verifier-readable, Ardyn-verified.
Tool Trust wraps every AI tool call in cryptographic evidence — so you can prove what happened, when, and under what authority. Every DDC is verifier-readable and replayable. Local mode is free forever. Production trust is metered through Ardyn.
AI agents call tools — search, query, execute, transfer. Every call is a liability event. Tool Trust wraps every tool call in cryptographic evidence so you can prove what happened, when, and under what authority.
- Free forever: Local DDCs, local verifier, local ATP — zero cost
- 5-minute install:
pip installornpm install, one decorator, done - Upgrade when ready: Same adapter, different client — local → relay → enterprise
- Production trust: SCU-metered certification via api.ardyn.ai
# Python
pip install tooltrust-sdk>=0.1.2
# TypeScript
npm install @ardyn/tooltrust-sdkfrom tooltrust import tool, LocalToolTrustClient
@tool(risk="read_only")
def search_docs(query: str) -> dict:
return {"results": [f"Found: {query}"]}
client = LocalToolTrustClient()
result = client.execute(search_docs, "liability verification")
ddc = client.issue_ddc()
print(f"DDC: {ddc.ddc_id}") # Free, local, verifiable| Mode | Client | DDCs | Cost | When to Use |
|---|---|---|---|---|
| Local | LocalToolTrustClient |
Local | Free | Development, testing |
| Relay | RelayToolTrustClient |
Production | Metered | Production, audit |
| Enterprise | ProductionToolTrustClient |
Production | Metered | Compliance, regulated |
Tool Trust provides drop-in adapters for popular AI frameworks:
| Adapter | Status | Install |
|---|---|---|
| MCP (Model Context Protocol) | ✅ | adapters/mcp/ |
| LangChain | ✅ | adapters/langchain/ |
| CrewAI | ✅ | adapters/crewai/ |
| HTTP | ✅ | adapters/http/ |
| Shell / Code Execution | ✅ | adapters/shell/ |
MIT — see LICENSE
Powered by Ardyn Intelligence Systems — the Liability Verification Substrate for Autonomous Systems.
Every DDC issued by Tool Trust carries Ardyn verification authority. Replay any DDC →