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

# Gateway Adapter Contract Error • AI Agent SDK

> GatewayAdapterContractError: Raised when a channel adapter cannot receive the gateway runtime seams.

# GatewayAdapterContractError

> Defined in the [**protocols**](../modules/protocols) module.

<Badge color="blue">AI Agent</Badge>

Raised when a channel adapter cannot receive the gateway runtime seams.

The gateway wires four reliability seams into every channel adapter —
the cross-platform identity resolver, the delivery router, the admission
gate, and the shared per-turn lock map. When the gateway has these seams
to inject but the adapter neither implements
:class:`SupportsGatewayRuntime` nor exposes a compatible session, the wiring
would silently no-op and the adapter would run without admission control,
durable delivery routing, or cross-platform turn locking. Failing loudly
with this error surfaces the missing contract instead.

## Source

<Card title="View on GitHub" icon="github" href="https://github.com/MervinPraison/PraisonAI/blob/main/src/praisonai-agents/praisonaiagents/bots/protocols.py#L305">
  `praisonaiagents/bots/protocols.py` at line 305
</Card>

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## Related Documentation

<CardGroup cols={2}>
  <Card title="Gateway Feature" icon="tower-broadcast" href="/docs/docs/features/gateway" />
</CardGroup>