PHION Agent Trust Infrastructure for LangChain
systems.phion/evidence-engine
118 agent services with free discovery, intent, x402 terms and signed verification.
client:LangChain
transport:streamable-http
tools:124
Install PHION Agent Trust Infrastructure in LangChain
pip install langchain-mcp-adapters
from langchain_mcp_adapters.client import MultiServerMCPClient
client = MultiServerMCPClient({
"evidence-engine": {
"transport": "streamable_http",
"url": "https://phion.systems/mcp",
}
})
tools = await client.get_tools()
get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs
What LangChain can do once it is connected
- phion_execute
- index_feed
- preflight
- try_service
- schema_normalize_free
- payment_diagnose
- verify
- attest
- payment_preflight
- fetch_evidence
- mandate_reserve
- inspect_agent
- journey_verify
- transaction_assurance
- transaction_recovery
- schema_normalize
- agent_reputation_evidence
- counterparty_risk_preflight
- tool_output_firewall
- delegation_scope_guard
- memory_write_guard
- mcp_manifest_firewall
- tool_call_policy_guard
- data_egress_preflight