Proof Holdings for LangChain
holdings.proof/mcp-server
One API, all things verified — control, delegation, human approval, anti-impersonation.
client:LangChain
transport:streamable-http
runtime:npm
tools:176
Install Proof Holdings in LangChain
pip install langchain-mcp-adapters
from langchain_mcp_adapters.client import MultiServerMCPClient
client = MultiServerMCPClient({
"mcp-server": {
"transport": "streamable_http",
"url": "https://api.proof.holdings/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
- create_verification
- get_verification
- list_verifications
- trigger_verification
- submit_verification_code
- resend_verification
- test_verify
- list_verified_users
- get_verified_user
- start_domain_verification
- check_domain_verification
- wait_for_verification
- create_multi_channel_verification
- get_multi_channel_verification_status
- create_verification_request
- get_verification_request
- get_request_proofs
- list_verification_requests
- get_request_by_reference
- cancel_verification_request
- wait_for_request
- validate_proof
- get_proof_status
- revoke_proof