AUMP Examples

Reference examples for the Agentic User Mandate Protocol.

This repo proves the next layer above conformance: a runnable buyer/seller agentic marketplace flow that uses AUMP to evaluate actions before messages, offers, commitments, disclosures, and checkout handoffs.

What This Proves

The marketplace example runs these deterministic scenarios:

• A buyer agent offers 3 USD for 19 ping pong balls under a delegated mandate.
• The offer is sent as an A2A-shaped message with mandate metadata.
• A seller agent receives the A2A message and records evidence.
• The buyer accepts the deal only after an MCP-shaped aump.evaluate_action call returns allowed.
• A 7 USD offer is denied by the mandate budget.
• A protected reservation-price disclosure is denied.
• A UCP checkout-ready handoff returns requires_escalation.
• Evidence is appended for material steps.

The flow imports the sibling aump-conformance package and runs the canonical conformance suite first. If the contract fails, the marketplace proof fails.

Workspace Requirement

For development, this repo expects the Python SDK and conformance repos to be cloned as siblings:

projects/
  conformance/
  examples/

When installed from PyPI, the example uses packaged demo data and the bundled conformance fixture corpus from aump-conformance.

Run

uv sync
uv run aump-examples marketplace

Expected summary:

AUMP marketplace proof
conformance: 29/29 passed
offer message: allowed
accept ping pong balls: allowed
over-budget offer: denied
private disclosure: denied
checkout handoff: requires_escalation
evidence events: 6
proof: passed

Write the full transcript:

uv run aump-examples marketplace --json --output transcript.json

Test

uv run ruff check .
uv run pytest