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

# Language-neutral MCP

> Implement the Epode binding on a stateless MCP 2026-07-28 server.

Use this path when your MCP server is not written in Node.

## Download the contract

```bash theme={null}
curl -fsSLO https://app.epode.ai/static/agent-feedback-protocol-v1.zip
unzip agent-feedback-protocol-v1.zip
```

## Required behavior

1. Implement stateless MCP `2026-07-28` and `server/discover`.
2. Validate every present HTTP `Origin` against an explicit allowlist.
3. Require matching `MCP-Protocol-Version`, `Mcp-Method`, and, for named calls, `Mcp-Name`.
4. Require current protocol metadata in `params._meta` for every request.
5. Return `resultType: "complete"`, server identity metadata, and deterministic tool-list cache hints.
6. Emit confirmed telemetry when a normal product tool completes.
7. Decorate the product result with `_agentFeedback` and a scoped `feedbackHandle`.
8. Register `report_product_feedback` and forward its bounded report with the capability.

If delivery returns `retryable: true`, tell the agent to retry exactly once with the same handle and report.
Do not retry validation, consent, or other non-retryable failures.

<Warning>
  Do not treat MCP client information or a transport connection as agent identity. Do not create transport
  sessions for modern requests.
</Warning>

## Verify

Test discovery, unsupported-version errors, origin rejection, header/body version consistency, deterministic
`tools/list`, a product-tool call, feedback-tool submission, idempotency, and the 2025-11-25 compatibility path.

See [MCP 2026-07-28 reference](/reference/mcp-2026-07-28) for the exact contract.

[View the runnable language-neutral MCP example](https://github.com/open-software-network/os-epode/tree/main/examples/setup-matrix-manual-mcp)