Documentation Index
Fetch the complete documentation index at: /llms.txt
Use this file to discover all available pages before exploring further.
Inject Grantex grant tokens into Google A2A agent-to-agent communication from Python
grantex-a2a package is the Python counterpart to @grantex/a2a, bridging the Google A2A protocol with Grantex delegated authorization.
pip install grantex-a2a
from grantex_a2a import (
A2AGrantexClient, A2AGrantexClientOptions,
TaskSendParams, A2AMessage, A2APart,
)
client = A2AGrantexClient(A2AGrantexClientOptions(
agent_url="https://agent.example.com/a2a",
grant_token="eyJ...",
))
task = client.send_task(TaskSendParams(
message=A2AMessage(role="user", parts=[A2APart(type="text", text="Hello")])
))
print(task.id, task.status.state)
from grantex_a2a import create_a2a_auth_middleware, A2AAuthMiddlewareOptions
middleware = create_a2a_auth_middleware(
A2AAuthMiddlewareOptions(
jwks_uri="https://grantex.dev/.well-known/jwks.json",
required_scopes=["read"],
)
)
# In your FastAPI/Flask handler:
grant = middleware(dict(request.headers))
print(grant.principal_id, grant.scopes)
from grantex_a2a import build_grantex_agent_card, GrantexAgentCardOptions
card = build_grantex_agent_card(GrantexAgentCardOptions(
name="My Agent",
description="An agent",
url="https://my-agent.example.com/a2a",
jwks_uri="https://grantex.dev/.well-known/jwks.json",
issuer="https://grantex.dev",
))