ESFREN

05Development

Development & AI

Sandbox builds software: websites, business applications, CRMs, custom platforms and AI agents. Its first project was its own. Sandbox Hub, the platform that brings together its media plans, reports, invoicing and agents, and ScoutWatch, the ad monitoring tool built by Sandbox, serve its own work every day. As of 28/10/2026, 38 agents work there for the team: some produce, others check them, and a human decides. Each client has an isolated environment, and their data stays exportable at any time.

  • 01Websites & apps
  • 02CRM & platforms
  • 03AI agents
  • 04Data pipelines
  • 05Sandbox Hub
  • 06API integrations
  • 07Client portal
01020304Websites & appsCRM & platformsAI agentsData pipelinesCLIENT PORTALSANDBOX HUBPIPELINES · DAILY01020304Websites & appsCRM & platformsAI agentsData pipelinesCLIENT PORTALSANDBOX HUBPIPELINES · DAILY
WHAT WE DO

What Sandbox builds, for itself and for its clients

01

Custom platforms, starting with Sandbox Hub

Sandbox Hub is built and maintained in-house: every feature answers a real need from our own operations. Agents write and test its code; another one reviews it before it enters the platform. The same methods serve the websites, business applications, CRMs and platforms Sandbox builds for its clients, from scoping to go-live.

Sandbox Hub screen: one workspace, built and maintained by Sandbox
  1. 1Developed and maintained in-house
  2. 2Updated as the team's needs evolve
  3. 3Media plans, measurement and invoicing in one space
  4. 4Dedicated client portal, open at any time
02

Security and client isolation

Each client operates in an isolated environment: secure authentication, role-based permissions, segregated data. Each client's data is strictly separated from the others', in Sandbox Hub as in every application delivered.

Diagram: isolated client environments, secure access
  1. 1Isolated environment per client
  2. 2Multi-factor authentication
  3. 3Role-based access permissions
  4. 4Complete access log
03

Pipelines, AI agents and human decision

API collection, data transformation, anomaly alerts, scheduled exports, CRM synchronization: as of 28/10/2026, 56 scheduled tasks run every day. Sandbox's agents plug into them for media plans, ad monitoring, reports and invoicing. None commits a client, a spend or a go-live on its own: a human decides.

Diagram: API collection, transformation, alerts
  1. 1Daily collection from Meta, Google, TikTok and LinkedIn
  2. 2Data transformation and normalization
  3. 3Anomaly alerts, with set escalation
  4. 4Scheduled exports, with no manual handling
04

The code and the data belong to the client

Data remains the client's property, exportable at any time in standard formats; delivered code is handed over with its documentation. The client can take it back, develop it further, or hand it to another team.

Sandbox Hub screen: the client's data, exportable at any time
  1. 1Data exportable at any time
  2. 2Standard formats (CSV, JSON, API)
  3. 3Code handed over with its documentation
  4. 4Can be taken over by another team
OUR APPROACH

A workshop that builds for itself first

  1. 01

    Websites, applications and CRMs

    A website, a business application, a CRM or a custom platform, scoped on a precise use: who uses it, which data, what outcome is expected. Built with the tools and methods behind Sandbox Hub, delivered with their code and documentation.

  2. 02

    AI agents

    We are building agents for our clients, connected to their tools: ad platforms, CRM, invoicing, messaging. They follow the method of the 38 agents working for Sandbox's team (28/10/2026): written rules, isolated access, an agent that checks the one that produces, a human who decides.

  3. 03

    Scheduled Pipelines

    API collection from Meta, Google, TikTok and LinkedIn, data transformation, anomaly alerts, scheduled exports, CRM synchronization. As of 28/10/2026, 56 scheduled tasks run every day, with no manual handling.

  4. 04

    Code and Data Handed Over

    Data remains the client's property, exportable at any time in standard formats, and delivered code belongs to the client.

IN FIGURES

The workshop, in four figures

Agents at work for the team, as of 28/10/202638
Client data open to another client0
Agent committing spend or a go-live on its own0
Data withheld if the engagement ends0

The AI agents at work at Sandbox, and the method that governs them: AI agents and AI implementation

FAQ

Frequently asked questions

01Do you build websites, applications and CRMs for your clients?

Yes. Sandbox builds websites, business applications, CRMs and custom platforms, with the tools and methods behind Sandbox Hub, the platform it built for its own operations. Every project starts with a scoping: who uses it, which data, what outcome is expected. Code and documentation are handed over to the client.

02What is Sandbox Hub?

Sandbox Hub is the platform Sandbox built in-house: media plans, dashboards, campaign history, reports, invoicing, sector monitoring and AI agents, in one space. Every client finds their figures brought together there, exportable and open at any time.

03Do we need an in-house technical team?

No. Sandbox builds, hosts and maintains what it delivers: websites, applications, CRMs. The client's team describes the need, validates the results and keeps control over the actions that commit the business.

04Do you set up GA4 and Consent Mode?

Yes. We implement GA4 with Consent Mode v2, GDPR compliant, and Google Tag Manager for reliable tracking. Contact requests can also be sent to Meta from the server, through the Meta Conversions API, and conversions imported into Google Ads. Everything is documented and tested.

05How do reporting and alerts work?

Dashboards are fed every day by scheduled tasks. Alerts on budget drift or a performance drop go out by email, and a human decides what comes next. Recurring exports, weekly or monthly, are produced with no manual handling.

06Does the infrastructure live with you or with us?

With you. We deploy into your own accounts: cloud hosting, GA4, Meta. You remain the owner of the data, the delivered code and the configuration. Sandbox Hub is the shared view that makes access easier; raw data stays in your accounts.

RELATED SERVICES

Explore our other expertise

01Media Buying & PerformanceSandbox buys your media on Meta, Google, TikTok and LinkedIn, and directly on online news sites. Every media plan is revExplore 02Strategy & AdvisoryFrom recommendation to execution, within the same team: media strategy, communication, brand. Every recommendation startExplore 03Data & AnalyticsEach ad platform's figures arrive separately, and do not say the same thing. Sandbox built a pipeline on its data warehoExplore

Built by the workshop that built its own

The first conversation covers the need, the tools to connect and the person who approves. Sandbox Hub and its agents can be shown at work, on demonstration data.

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