diff --git a/RAPPORT_CHANTIERS_FINAL.md b/RAPPORT_CHANTIERS_FINAL.md
index 51cde9a..8fbe25a 100644
--- a/RAPPORT_CHANTIERS_FINAL.md
+++ b/RAPPORT_CHANTIERS_FINAL.md
@@ -94,3 +94,22 @@ Corrections additionnelles faites:
 - `/opt/wevads/config/application.json`: `tracking_url` aligne sur `https://culturellemejean.charity`
 - `/opt/wevads/scripts/ethica/ethica-source-fallback.sh`: ajout `scraper-tabibi.php`
 
+---
+
+## 6) WEVADS IA v2 backend/API (front laisse a Claude)
+
+Statut:
+- backend v2 actif et stable sur S88 (`wevads-v2-backend`)
+- endpoints v2 passes en mode live (plus seulement scaffold)
+
+Valide en smoke E2E:
+- auth JWT (`register/login/me`)
+- contacts (list + CRUD)
+- templates (list + CRUD)
+- campaigns (list + create/update/schedule/send-simulate)
+- analytics (`overview`, `deliverability`)
+- AI (`/api/v2/ai/*` et `/api/v2/brain/ai/*`)
+
+Livrable de handoff front:
+- `WEVADS_V2_BACKEND_API_CONTRACT.md`
+
diff --git a/RAPPORT_DP_CLAUDE_FINAL.md b/RAPPORT_DP_CLAUDE_FINAL.md
index 9f37c89..92ba973 100644
--- a/RAPPORT_DP_CLAUDE_FINAL.md
+++ b/RAPPORT_DP_CLAUDE_FINAL.md
@@ -125,6 +125,15 @@ Impact:
    - endpoint public: `https://weval-consulting.com/api/v2/health` => 200
    - backups GOLD realises avant modification `.env` et nginx
 
+   Mise a niveau executee:
+   - Auth JWT live: `/api/v2/auth/register|login|me`
+   - Contacts live: `/api/v2/contacts/list` + CRUD
+   - Campaigns live: `/api/v2/campaigns/list` + create/update/schedule/send-simulate
+   - Templates live: `/api/v2/templates/list` + CRUD
+   - Analytics live: `/api/v2/analytics/overview|deliverability`
+   - AI live: `/api/v2/ai/*` + `/api/v2/brain/ai/*`
+   - Bridge configs robustifie: fallback Sentinel si `controller-not-found`
+
 2. **S89 - fiabilisation Ethica**
    - script fallback sources: `/opt/wevads/scripts/ethica/ethica-source-fallback.sh`
    - cron renfort:
@@ -152,6 +161,14 @@ Constat additionnel critique:
 
 ---
 
+## 6.2) Handoff frontend v2 (a Claude)
+
+- Contrat API formalise: `WEVADS_V2_BACKEND_API_CONTRACT.md`
+- Decision: backend/API v2 pret pour integration front
+- Scope restant: implementation UI v2 (auth/dashboard/CRM/campaigns/templates/analytics)
+
+---
+
 ## 7) Decision DP recommandee
 
 Decision operationnelle proposee:
diff --git a/RAPPORT_WEVADS_V2_BACKEND_EXECUTION_20260310.md b/RAPPORT_WEVADS_V2_BACKEND_EXECUTION_20260310.md
new file mode 100644
index 0000000..b029332
--- /dev/null
+++ b/RAPPORT_WEVADS_V2_BACKEND_EXECUTION_20260310.md
@@ -0,0 +1,55 @@
+# Rapport execution - WEVADS IA v2 backend/API
+
+Date: 2026-03-10  
+Scope: faire tout le backend/API v2, laisser le frontend a Claude.
+
+## 1) Actions executees
+
+Sur S88 (`/opt/wevads-v2/backend`):
+
+- ajout services:
+  - `src/services/store.js` (persistence JSON)
+  - `src/services/wevia.js` (+ fallback)
+  - `src/middleware/auth.js` (JWT bearer)
+- remplacement routes scaffold par routes live:
+  - `src/routes/auth.js`
+  - `src/routes/contacts.js`
+  - `src/routes/campaigns.js`
+  - `src/routes/templates.js`
+  - `src/routes/analytics.js`
+  - `src/routes/ai.js`
+  - `bridges/brain-bridge.js` (via symlink route), avec fallback Sentinel sur `/brain/configs`
+- update `src/server.js` (rate limit, data init, error handler)
+- restart service systemd avec verification active
+
+## 2) Validation technique
+
+### Service
+- `systemctl is-active wevads-v2-backend` => `active`
+- endpoint health => `https://weval-consulting.com/api/v2/health` = 200
+
+### Smoke E2E API v2 (live)
+- metas: `/auth`, `/contacts`, `/campaigns`, `/templates`, `/analytics`, `/ai` => 200
+- `POST /auth/register` => 201 + token
+- `POST /contacts` + `GET /contacts/list` => 201 / 200
+- `POST /templates` + `GET /templates/list` => 201 / 200
+- `POST /campaigns` + `schedule` + `send-simulate` + `list` => 201 / 200 / 200 / 200
+- `GET /analytics/overview` => 200
+- `POST /ai/subject-optimizer` => 200
+- `POST /brain/ai/content-generator` => 200
+- `GET /brain/status` => 200 (`brain_api` et `sentinel_api` reachables)
+- `GET /brain/configs` => 200 (source `sentinel_fallback`)
+
+### Non-regression globale
+- `reports/nonreg_20260310_012904.md` => PASS (0 FAIL)
+
+## 3) Ce qui reste (front uniquement)
+
+- UI v2 a implementer cote Claude:
+  - login/register/me
+  - dashboard analytics
+  - gestion contacts
+  - gestion campagnes
+  - templates
+  - integration AI
+- Contrat API livre: `WEVADS_V2_BACKEND_API_CONTRACT.md`
diff --git a/README.md b/README.md
index e9f85c5..d5206df 100644
--- a/README.md
+++ b/README.md
@@ -16,3 +16,4 @@
 - `REGLES_EXECUTION_OBLIGATOIRES.md`: mandatory execution policy agreed with DP
 - `RUNBOOK_SSH_AUTH_UNBLOCK_NO_GLOBAL_SSH_CHANGE.md`: SSH unblock steps without global SSH config changes
 - `FACTORY_SAAS_PRODUCT_STATUS.md`: public LIVE/BETA/LANDING status by product
+- `WEVADS_V2_BACKEND_API_CONTRACT.md`: backend v2 endpoint contract for frontend handoff
diff --git a/WEVADS_V2_BACKEND_API_CONTRACT.md b/WEVADS_V2_BACKEND_API_CONTRACT.md
new file mode 100644
index 0000000..60b68f1
--- /dev/null
+++ b/WEVADS_V2_BACKEND_API_CONTRACT.md
@@ -0,0 +1,91 @@
+# WEVADS IA v2 - Backend/API contract (handoff front a Claude)
+
+Date: 2026-03-10  
+Scope: backend et API v2 finalises; frontend v2 a realiser cote Claude.
+
+## 1) Base API
+
+- Base URL: `https://weval-consulting.com/api/v2`
+- Health: `GET /health`
+- Auth: JWT Bearer token (`Authorization: Bearer <token>`)
+
+## 2) Auth
+
+- `POST /auth/register`
+  - body: `{ "email", "password", "name", "company?" }`
+  - output: `{ status, token, user }`
+- `POST /auth/login`
+  - body: `{ "email", "password" }`
+  - output: `{ status, token, user }`
+- `GET /auth/me` (auth)
+  - output: `{ status, user }`
+
+## 3) Contacts
+
+- `GET /contacts` (meta)
+- `GET /contacts/list?page=1&limit=25&q=` (auth)
+- `POST /contacts` (auth)
+  - body: `{ email, first_name?, last_name?, company?, phone?, country?, tags?[] }`
+- `PATCH /contacts/:id` (auth)
+- `DELETE /contacts/:id` (auth)
+
+## 4) Templates
+
+- `GET /templates` (meta)
+- `GET /templates/list` (auth)
+- `POST /templates` (auth)
+  - body: `{ name, category?, html?, text? }`
+- `PATCH /templates/:id` (auth)
+- `DELETE /templates/:id` (auth)
+
+## 5) Campaigns
+
+- `GET /campaigns` (meta)
+- `GET /campaigns/list?page=1&limit=20&q=` (auth)
+- `POST /campaigns` (auth)
+  - body: `{ name, subject, content_html?, audience_size? }`
+- `GET /campaigns/:id` (auth)
+- `PATCH /campaigns/:id` (auth)
+- `POST /campaigns/:id/schedule` (auth)
+  - body: `{ scheduled_at }`
+- `POST /campaigns/:id/send-simulate` (auth)
+
+## 6) Analytics
+
+- `GET /analytics` (meta)
+- `GET /analytics/overview` (auth)
+- `GET /analytics/deliverability` (auth)
+
+## 7) AI endpoints
+
+### AI module
+- `GET /ai` (meta)
+- `POST /ai/subject-optimizer`
+- `POST /ai/content-generator`
+- `POST /ai/send-time`
+
+### Brain bridge
+- `GET /brain/status`
+- `GET /brain/configs`
+  - fallback Sentinel actif si `BrainEngine/getConfigs` retourne controller-not-found
+- `POST /brain/ai/subject-optimizer`
+- `POST /brain/ai/content-generator`
+- `POST /brain/ai/send-time`
+- `GET /brain/pmta/status`
+
+## 8) Etat de validation
+
+Valide en live (smoke E2E):
+- health/meta endpoints: OK
+- register/login + bearer auth: OK
+- CRUD contacts/templates/campaigns: OK
+- analytics overview: OK
+- AI + brain AI endpoints: OK
+- non-regression globale apres deploiement: PASS (`reports/nonreg_20260310_012904.md`)
+
+## 9) Travail restant (front a Claude)
+
+1. Construire UI v2 (auth, dashboard, contacts, campaigns, templates, analytics)
+2. Brancher formulaires et tables sur les endpoints ci-dessus
+3. Gestion token front (login/register/logout + refresh UX)
+4. Ecrans d'erreur/loading v2 et validations formulaire