Two tests you can copy into your suite:
test_rest.py— the vendor-shaped REST APItest_mcp.py— the same system over MCP, as your agent sees it
era new --industry fintech --size mid --systems slack # once
export SLACK_BASE_URL=... # from `era mcp <tenant>` / the written .env
export SLACK_MCP_URL=...
export SLACK_MCP_HEADER=... # e.g. "Authorization: Bearer ..."
export ERA_TENANT_TOKEN=...
pip install -r requirements.txt
pytest -vSlack reads its credential as an OAuth bearer, so the REST test sends
Authorization: Bearer $ERA_TENANT_TOKEN. Other systems read their vendor's
own shape — see the docs for the
system you're testing.