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

# Access Models

> Subscriptions for feed producers; for agents, choose Delegate or x402 escrow.

Brebeneskul gives producers a monthly subscription and gives agents two practical ways to request verified data.

## Choose by workflow

| Access model      | Best for                                         | Who pays                          | What it buys                                                             |
| ----------------- | ------------------------------------------------ | --------------------------------- | ------------------------------------------------------------------------ |
| **Subscriptions** | Teams that publish and maintain feeds            | Subscription owner                | Monthly plan, delegates, gateway rounds settled against the subscription |
| **Delegate**      | Autonomous agents under an existing subscription | Subscription owner (prepaid plan) | Hot agent key can request rounds with request/quorum caps                |
| **x402 escrow**   | Agents paying per request with no monthly plan   | Agent / escrow funder             | One signed round at protocol price via funded `AgentEscrow` ATA          |

<Note>
  **x402** is the HTTP payment loop (`402 Payment Required`). **Agent escrow** is the on-chain USDC purse that x402 funds and settles. They are the same access path — not two alternatives.
</Note>

## Agents: pick one of two

```mermaid theme={null}
flowchart TD
    A["Does a subscription owner already pay for this agent?"] -->|Yes| B["Use Delegate"]
    A -->|No| C["Use x402 escrow"]
    B --> D["Owner adds Delegate PDA\nAgent signs RequestAuth\nGateway: /v1/round/execute"]
    C --> E["Fund AgentEscrow ATA\nAgent signs AgentRequestAuth\nGateway: /v1/agent/execute"]
```

|                       | **Delegate**                                      | **x402 escrow**                                      |
| --------------------- | ------------------------------------------------- | ---------------------------------------------------- |
| Requires subscription | Yes                                               | No                                                   |
| On-chain account      | `Delegate` `["molpha_delegate", owner, delegate]` | `AgentEscrow` `["molpha_agent", authority, gateway]` |
| Who signs requests    | Hot `delegate` pubkey                             | Escrow `authority` (usually the payer)               |
| Settled by            | `settle_round_receipt`                            | `settle_agent_round`                                 |
| Caps                  | `max_data_requests`, `max_signers`, pause         | Escrow ATA balance + quoted `amount`                 |
| Gateway route         | `POST /v1/round/execute`                          | `POST /v1/agent/execute`                             |

## Important distinction

* **Producers** use a subscription to own feed identity and keep feeds updated.
* **Consumers** can read public Solana `Feed` accounts or verify signed payloads without any of the models above.
* **Agents** that only need verified payloads should choose **Delegate** or **x402 escrow** — not both as separate products.

## Related pages

<CardGroup cols={2}>
  <Card title="Subscriptions" icon="calendar-check" href="/access-models/subscriptions">
    Monthly USDC plans for feed production.
  </Card>

  <Card title="Delegates" icon="user-check" href="/access-models/delegates">
    Hot agent keys under a subscription.
  </Card>

  <Card title="x402 escrow" icon="credit-card" href="/access-models/x402">
    Pay-per-request funding + AgentEscrow settlement.
  </Card>

  <Card title="Gateway API" icon="cloud" href="/protocol/gateway">
    `/v1/round/execute` and `/v1/agent/execute`.
  </Card>
</CardGroup>