---
title: "Found Founding"
method: POST
path: "/founding/{founding_id}/found"
tags: ["founding"]
---

# Found Founding

`POST /founding/{founding_id}/found`

The founder's approval: start founding from ``reviewing`` (spec §4.3, D5).

Same SSE response shape as ``/turn`` — the founder watches checklist frames
on this stream, ``done`` last, always. Same claim discipline too: the claim
is taken before the status code is chosen, so a concurrent segment gets a
real 409 the client re-attaches on.

Caps were counted at naming; the finalizer's stall-don't-fail gate check
(step 3) is unchanged and still protects credits/plan/pause at the
handoff. Standing to found (spec CREDIT_NOTICES D13): (a Founder plan OR
a live trial) AND at least 12 credits — checked here, before the claim,
as a typed 402 whose payload is the flip card the review screen renders
in FOUND's place.

The v3 welcome grant (spec V3_GA_FLIP D2) fires FIRST, unconditionally,
once per conglomerate ever: a first-time presser banks 15 credits before
the gate reads the balance, so a fresh trial account founds without a
top-up. The conglomerate is re-loaded after it so the gate sees the fresh
balance.

## Path parameters

- `founding_id` string, uuid, required

## Headers

- `X-Posthog-Session-Id` string, nullable
- `X-Client-Mobile` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/nanocorp/apis/nanocorp-api.md) · [All operations](https://skmtc.dev/nanocorp/apis/nanocorp-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/nanocorp/nanocorp-api/revisions/04b208d3215b/schema)