> ## Documentation Index
> Fetch the complete documentation index at: https://docs.neuraltrust.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Apigee

> TrustGuard from an Apigee Shared Flow (ServiceCallout + RaiseFault).

Call evaluate from a **Shared Flow** and raise a fault on block.

## Coverage

| Surface    | Monitor | Block | Redact |
| ---------- | :-----: | :---: | :----: |
| LLM input  |    ✅    |   ✅   |    ❌   |
| LLM output |    ✅    |   ✅   |    ❌   |
| Tool-level |    ➖    |   ➖   |    ➖   |

**Ask** — the Shared Flow maps the verdict onto a boolean, so an `ask` gate is
**allowed** and recorded. Write the rule as **Block** if you need a hard stop.

**Use it when** Apigee is your API management layer and you can attach the Shared
Flow with an environment flow hook, covering every proxy by default. **Not when**
you can only attach it proxy by proxy and the catalog grows fast — each new proxy
is born uncovered.

**Limits.** No masking: the documented flow raises a fault or lets the request
pass. Both PreFlow and PostFlow attachments are needed for full direction
coverage.

Full comparison: [Coverage](/trustguard/integrations/coverage).

1. Create an API key on the collector.
2. **AssignMessage** — build
   `{ protocol, direction, payload, consumer_id, session_id }` (client\_id / developer app
   as `consumer_id`).
3. **ServiceCallout** — `POST` evaluate with `Authorization: Bearer`.
4. **RaiseFault** 403 when `status == "block"`.
5. On `transform`, replace the message body with `transformed_payload`.
6. Attach with FlowCallout on the request path (`direction: input`) and response path
   (`direction: output`).