API reference

POSTMove a project to another pipeline stage

POST /v1/projects/{project_id}/stage: Exactly the manual move a team member can make in the pipeline: a display stage, never an approval (use mark_approved for that).

POSThttps://api.light-ai.app/v1/projects/{project_id}/stage

Exactly the manual move a team member can make in the pipeline: a display stage, never an approval (use mark_approved for that). expected_stage protects against overwriting a newer change (409 stale_state).

Scope	`projects:write`
Credential	API key: `Authorization: Bearer lai_live_…` (or `lai_test_…`). Partner keys add `Light-AI-Organization`.
Test mode	Works with test keys against simulated test objects.
Idempotency	`Idempotency-Key` supported. See Idempotency.

Path parameters#

project_idstringrequired#

The project id (prj_…). Id prefix prj_.

Headers#

Light-AI-Organizationstring#

Partner keys: the connected organization to act for (org_…). Organization keys may omit it. Id prefix org_.

Light-AI-Versionstring#

Pin a dated API version (defaults to the key's version). One of: 2026-11-01.

Idempotency-Keystring#

Retry-safe writes: the same key and body replay the first response for 24 hours (Idempotent-Replayed: true). 8–128 characters.

Request body#

expected_stagestringrequired#

The stage you believe the project is in (409 stale_state otherwise). One of: request, quote_drafted, quote_sent, approved, completed, closed_lost.

stagestringrequired#

A display stage. approved is reserved for an actual approval (mark_approved). One of: request, quote_drafted, quote_sent, completed, closed_lost.

reasonstring | null#

null or "": none. At most 200 characters.

source_systemstring | null#

The system that caused this write (shown as origin.source_system on the resulting events, for loop prevention).

Response 200#

The project after the move.

idstringrequired#

Id prefix prj_.

objectstringrequired#

Always project.

livemodebooleanrequired#

false for objects created with a test key.

namestring | nullrequired#

statusstringrequired#

One of: intake, measuring, mockup, quote, approved, completed, archived.

pipeline_stagestring | nullrequired#

The pipeline column; null for an archived project. One of: request, quote_drafted, quote_sent, approved, completed, closed_lost.

client_idstring | nullrequired#

Id prefix cli_.

property_idstring | nullrequired#

Id prefix prop_.

leadobject | nullrequired#

lead.idstringrequired#

Id prefix lead_.

lead.sourcestring | nullrequired#

One of: website_widget, api, google_ads_lead_form, google_lsa, meta_lead_ad, highlevel, hubspot, jobber, service_autopilot, realgreen, sweepandgo, deeplawn, zapier, n8n, make, crm_import, other, manual.

lead.external_refsobject[]required#

lead.external_refs[].systemstringrequired#

lead.external_refs[].namespacestring | nullrequired#

lead.external_refs[].idstringrequired#

lead.external_refs[].ownerstringrequired#

self: written by your integration (editable); others are read-only. One of: self, organization, partner.

lead.external_refs[].read_onlybooleanrequired#

assigned_repobject | nullrequired#

assigned_rep.idstringrequired#

assigned_rep.namestring | nullrequired#

assigned_rep.emailstring | nullrequired#

lighting_typestring | nullrequired#

notesstring | nullrequired#

current_quote_idstring | nullrequired#

Id prefix qt_.

request_offerobject | null#

The offer of the website request this project came from, as the request kept it (the same object as lead.offer); null otherwise. The quote builder pre-fills the quote discount from it once; the published quote shows it as discount.label.

request_offer.templatestring | null#

The Light AI campaign template that filled the offer; null or absent for the contractor's own. One of: classic, early_bird, black_friday, last_chance.

request_offer.headlinestringrequired#

request_offer.discount_typestringrequired#

One of: percent, amount.

request_offer.discount_percentinteger | nullrequired#

request_offer.discount_amountinteger | nullrequired#

request_offer.labelstringrequired#

request_offer.ends_atstring | nullrequired#

request_offer.book_bystring | nullrequired#

request_offer.captured_atstring | nullrequired#

estimated_valueMoney | nullrequired#

external_refsobject[]required#

external_refs[].systemstringrequired#

external_refs[].namespacestring | nullrequired#

external_refs[].idstringrequired#

external_refs[].ownerstringrequired#

self: written by your integration (editable); others are read-only. One of: self, organization, partner.

external_refs[].read_onlybooleanrequired#

app_urlstring | nullrequired#

created_attimestamprequired#

RFC 3339 timestamp (UTC, milliseconds).

updated_attimestamprequired#

Last change of the project or of what the API derives for it (pipeline_stage, current_quote_id): updated_since sees a decline or a republish.

fixtureboolean#

Always true.

Errors#

Status	Meaning
`400`	Bad request. `bad_request`, `test_mode_mismatch`, `test_mode_unsupported`, `unsupported_api_version`
`401`	Missing or invalid credential. `authentication_required`, `invalid_api_key`, `api_key_revoked`, `api_key_expired`, `api_key_suspended`
`403`	Not allowed. `insufficient_scope`, `plan_upgrade_required`, `organization_paused`, `organization_off_season`, `api_disabled`, `api_access_not_enabled`, `ip_not_allowed`, `forbidden`
`404`	Not found (also for objects of other organizations and for organizations without an active grant).
`409`	Conflict. `stale_state`, `conflict`, `idempotency_in_progress`, `idempotency_scope_mismatch`, `quote_already_decided`, `quote_not_current`, `billing_review_required`
`413`	Request bodies are limited to 256 KB.
`415`	The body is not JSON: send Content-Type: application/json. `unsupported_media_type`
`422`	Validation failed. `idempotency_key_reused`
`429`	Rate limited or daily cap reached. See Retry-After and the RateLimit headers. `rate_limited`, `daily_cap_reached`
`500`	Unexpected server error. Safe to retry with exponential backoff; quote the Request-Id to support. `internal_error`
`503`	Temporarily unavailable. Retry with exponential backoff. `service_unavailable`

Request

curl -X POST "https://api.light-ai.app/v1/projects/{project_id}/stage" \
  -H "Authorization: Bearer $LIGHT_AI_API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{
  "expected_stage": "quote_sent",
  "stage": "closed_lost",
  "reason": "Went with another company",
  "source_system": "hubspot"
}'

const response = await fetch('https://api.light-ai.app/v1/projects/{project_id}/stage', {
  method: 'POST',
  headers: {
    Authorization: `Bearer ${process.env.LIGHT_AI_API_KEY}`,
    'Idempotency-Key': crypto.randomUUID(),
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "expected_stage": "quote_sent",
    "stage": "closed_lost",
    "reason": "Went with another company",
    "source_system": "hubspot"
  }),
});
const data = await response.json();

import os, uuid, requests

response = requests.post(
    "https://api.light-ai.app/v1/projects/{project_id}/stage",
    headers={
        "Authorization": f"Bearer {os.environ['LIGHT_AI_API_KEY']}",
        "Idempotency-Key": str(uuid.uuid4()),
    },
    json={
      "expected_stage": "quote_sent",
      "stage": "closed_lost",
      "reason": "Went with another company",
      "source_system": "hubspot"
    },
    timeout=30,
)
data = response.json()

Response 200JSON

{
  "id": "prj_3f9c2a7be41d…",
  "object": "project",
  "livemode": false,
  "name": "Dana Reyes",
  "status": "intake",
  "pipeline_stage": "request",
  "client_id": "cli_3f9c2a7be41d…",
  "property_id": "prop_3f9c2a7be41d…",
  "lead": {
    "id": "lead_3f9c2a7be41d…",
    "source": "website_widget",
    "external_refs": [
      {
        "system": "string",
        "namespace": "string",
        "id": "string",
        "owner": "self",
        "read_only": true
      }
    ]
  },
  "assigned_rep": {
    "id": "string",
    "name": "Dana Reyes",
    "email": "dana@example.com"
  },
  "lighting_type": "string",
  "notes": "string",
  "current_quote_id": "qt_3f9c2a7be41d…",
  "request_offer": {
    "template": "black_friday",
    "headline": "Black Friday: 20% off installs",
    "discount_type": "percent",
    "discount_percent": 20,
    "discount_amount": null,
    "label": "20% off",
    "ends_at": "2026-11-30T05:59:00Z",
    "book_by": "Book by Dec 1 for install before Christmas",
    "captured_at": "2026-11-27T14:03:11Z"
  },
  "estimated_value": {
    "cents": 245000,
    "decimal": "2450.00",
    "currency": "USD"
  },
  "external_refs": [
    {
      "system": "string",
      "namespace": "string",
      "id": "string",
      "owner": "self",
      "read_only": true
    }
  ],
  "app_url": "https://example.com/…",
  "created_at": "2026-10-12T14:03:11.000Z",
  "updated_at": "2026-10-12T14:03:11.000Z",
  "fixture": true
}