ADCP: The New Infrastructure for Agentic Advertising

12 min de lecture
Fabrice TROLLET
ADCPAd Context ProtocolAdvertising AgentiqueSystèmes Multi-AgentsPublicité ProgrammatiqueAdTechDSPSSPMachine LearningAutomatisationAgentic AI

On October 15, 2025, a major consortium launches ADCP, a protocol transforming programmatic advertising. Discover how multi-agent systems are revolutionizing AdTech and how Aggil supports you in this transition.

The advertising industry is currently experiencing a pivotal moment comparable to the arrival of programmatic in 2010. On October 15, 2025, a consortium including Yahoo, PubMatic, Scope3, and about twenty major players launched the Ad Context Protocol (ADCP), an open-source standard that could redefine how advertising campaigns are planned, purchased, and optimized. At Aggil, we observe this evolution with particular interest. For several years, we have been developing multi-agent systems for our clients in the digital marketing and programmatic advertising sectors. What ADCP is standardizing today, we are already building in production: autonomous agents collaborating to optimize complex advertising workflows.

Understanding ADCP: Beyond the Buzzword

What ADCP Is NOT

Before diving into technical details, let's clarify an essential point: ADCP is not a SaaS platform you can activate tomorrow morning. It's a communication protocol, comparable to OpenRTB in the programmatic era, but specifically designed to enable AI agents to negotiate and execute advertising campaigns autonomously.

The protocol was launched a few weeks ago, and the ecosystem is still under construction. There is no "switch" to activate yet. It's an infrastructure to implement, and that's precisely where the opportunity lies.

What ADCP Actually Brings

ADCP solves a fundamental problem: the current impossibility for AI systems to communicate effectively across the fragmented advertising ecosystem.

Today, if you want to automate a multi-channel campaign:

  • Each DSP, SSP, or data provider has its own API
  • Each integration is custom and costly
  • AI agents cannot "negotiate" with each other
  • Orchestration remains largely manual

ADCP standardizes three critical workflows:

1. Signals Activation: Discovery and activation of audience segments via natural language

2. Media Buy: Execution and management of programmatic campaigns

3. Creative: Generation and synchronization of creative assets (in development)

The major innovation? Buyer-side agents can now dialogue directly with publisher-side agents, in natural language, to discover inventory, negotiate deals, and optimize in real-time.

Why Multi-Agent Systems Are Becoming Essential

40-60%
Setup time reduction
25-35%
Media efficiency improvement
70-80%
Manual errors reduction

At Aggil, we have been developing multi-agent systems for several years, primarily for automating complex workflows across different sectors. The parallel with programmatic advertising is striking.

Anatomy of a Multi-Agent System for AdTech

An effective multi-agent system for programmatic advertising typically includes:

1. Discovery Agent

  • Analyzes marketing briefs in natural language
  • Identifies relevant audience signals
  • Queries multiple data sources simultaneously
  • Returns options with relevance scoring

2. Optimization Agent

  • Predictive ML models for performance
  • Historical analysis of similar campaigns
  • Pricing recommendations (CPM, CPA, CPCV)
  • Dynamic adjustments based on results

3. Execution Agent

  • Media buy creation
  • Budget and pacing management
  • Real-time monitoring
  • Alerts and escalations

4. Analytics Agent

  • Cross-platform consolidation
  • Multi-touch attribution
  • Actionable insights generation
  • Optimization recommendations

These agents communicate with each other, share context, and make coordinated decisions — exactly what ADCP is designed to standardize at industry scale.

Our Production Experience

We have deployed similar architectures for clients in programmatic, including:

  • Bid strategy optimization with ML agents that adjust bids in real-time based on composite signals (context, historical performance, inventory quality)
  • Curation automation with agents that select and package inventory according to complex business criteria
  • Supply-side decisioning where publisher-side agents optimize impression allocation even before bidding

These use cases correspond exactly to ADCP protocols. Our expertise is not theoretical: we know what works in production, the technical pitfalls to avoid, and how to ensure progressive adoption without disrupting existing workflows.

The Three Waves of ADCP Adoption

Wave 1: Early Adopter Pilots

20-25 pioneering companies testing ADCP with limited budgets

Q4 2025 - Q1 2026

Wave 2: Mainstream Adoption

100+ publishers, major DSPs, stabilized infrastructure and proven ROI

Q2-Q4 2026

Wave 3: Industry Standard

Widespread adoption, ADCP becomes as standard as OpenRTB

2027+

Based on our analysis and discussions with protocol founders, adoption will likely follow this pattern:

Wave 1: Early Adopter Pilots (Q4 2025 - Q1 2026)

Who: 20-25 pioneering companies (DSP, SSP, advanced agencies)

What happens:

  • Testing with limited budgets
  • Protocol validation in real conditions
  • Identification of spec gaps
  • First feedback and learnings

Opportunity: Position as reference by participating in working groups, contributing to specs, and documenting learnings.

Wave 2: Mainstream Adoption (Q2-Q4 2026)

Who: 100+ publishers, several major DSPs, significant-sized agencies

What happens:

  • Stabilized infrastructure
  • Proven use cases with measurable ROI
  • Mature tooling and frameworks
  • Training and evangelization

Opportunity: Offer turnkey implementation services with results guarantee based on Wave 1 learnings.

Wave 3: Industry Standard (2027+)

Who: Widespread adoption

What happens:

  • ADCP becomes as standard as OpenRTB
  • Native integration in platforms
  • Differentiation on optimization, not infrastructure

Opportunity: Advanced optimization services and agentic strategy to differentiate in a mature market.

Our recommendation: Enter in Wave 1 to build the expertise that will differentiate in Wave 2.

Required Technical Skills

Implementing ADCP is not just "reading docs and coding." It requires a rare intersection of skills:

AdTech

AdTech Expert

Programmatic ecosystem, OpenRTB, VAST, DSP/SSP

Architecture

Multi-Agent Systems

CrewAI, LangChain, AutoGen, complex orchestration

ML/AI

Machine Learning

Predictive models, bid optimization, anomaly detection

DevOps

Integration & Infrastructure

API design, security, monitoring, observability

1. AdTech Expertise

  • Deep understanding of programmatic ecosystem
  • Knowledge of ad formats, pricing models, attribution
  • Experience with DSP/SSP/DMP
  • Mastery of standards (OpenRTB, VAST, etc.)

2. Multi-Agent Systems

  • Agent-based architecture (CrewAI, LangChain, AutoGen)
  • Complex workflow orchestration
  • Distributed state management
  • Inter-agent communication

3. Machine Learning for Optimization

  • Predictive performance models
  • Recommender systems
  • Real-time bidding optimization
  • Anomaly detection

4. Integration & Infrastructure

  • API design and versioning
  • Authentication and security
  • Rate limiting and resilience
  • Monitoring and observability
At Aggil, we cover all four domains. Our team has 17 years of experience in digital transformation, several years of production multi-agent systems development, ML expertise applied to business optimization, and a track record of complex integrations with measurable ROI.

How to Get Started: Our 4-Phase Approach

1

Phase 1: Audit & Assessment

Workflow mapping, priority use case identification, ROI estimation (2-3 weeks)

2

Phase 2: Proof of Concept

ADCP agent implementation with real tests, validation framework (4-6 weeks)

3

Phase 3: Production Implementation

Complete multi-agent system, full integrations, team training (8-12 weeks)

4

Phase 4: Optimization & Scale

A/B testing, ML fine-tuning, new channel expansion (Ongoing)

Based on our proven methodology, here's how we support clients on ADCP:

Phase 1: Audit & Assessment (2-3 weeks)

Objective: Identify where ADCP brings the most value in your existing stack.

Deliverables:

  • Current advertising workflow mapping
  • Priority ADCP use case identification
  • ROI estimation per use case
  • Phased implementation roadmap
  • Internal skills vs needs assessment

Our value: We've already done this exercise internally and with clients. We know which use cases work in production vs those that are "sexy on paper" but problematic to operate.

Phase 2: Proof of Concept (4-6 weeks)

Objective: Validate technical feasibility and ROI on a restricted scope.

Deliverables:

  • ADCP agent implementation (signals or media buy)
  • Integration with 1-2 partners for testing
  • Testing and validation framework
  • Performance metrics baseline vs agentic

Our approach: Rapid PoC with frequent iterations. We use the official ADCP testing framework (https://testing.adcontextprotocol.org) and contribute our learnings to working groups.

Phase 3: Production Implementation (8-12 weeks)

Objective: Deploy to production with continuous monitoring and optimization.

Deliverables:

  • Complete ADCP-compatible multi-agent system
  • API integrations with your current stack
  • Monitoring and analytics dashboard
  • Technical documentation and runbooks
  • Team training

Our differentiator: We don't just deliver code. We transfer skills so your teams can operate and evolve the system.

Phase 4: Optimization & Scale (Ongoing)

Objective: Improve performance and extend to other use cases.

Deliverables:

  • A/B testing of agentic strategies
  • ML model fine-tuning
  • Expansion to new channels/partners
  • Evolution with new ADCP versions

Pitfalls to Avoid

1. Believing ADCP Replaces Your Teams

Reality: ADCP automates execution, not strategy. Humans remain essential for:

  • Defining business objectives
  • Approving significant budgets
  • Managing partner relationships
  • Making creative decisions

Our recommendation: "Human-in-the-loop" architecture. Agents propose, optimize, and execute. Humans supervise, approve, and adjust strategy.

2. Implementing Without Clear Use Case

Reality: "Doing ADCP" is not a goal. The goal is to improve specific business metrics.

Our approach: Start with a precise problem with measurable KPI:

  • Reduce acquisition cost by 20%
  • Increase reach without degrading CPA
  • Automate 60% of time spent on bid management

3. Underestimating Organizational Change Complexity

Reality: Technology is the easy part. Changing processes and habits is the real challenge.

Our method: Continuous training, internal champions, and progressive adoption with quick wins to generate momentum.

4. Neglecting Governance and Security

Reality: Autonomous agents managing advertising budgets require:

  • Robust authentication
  • Complete audit trails
  • Rate limiting and safeguards
  • GDPR and sector regulation compliance

Our expertise: All our implementations integrate security-by-design and are EU AI Act compliant.

Real ROI: What Our Models Predict

Operational Gains (6-12 months)
Strategic Gains (12-24 months)
40-60% reduction
Access to new premium inventory
25-35% improvement
Time-to-market halved
70-80% reduction
Tech stack consolidation

Based on our deployments of similar multi-agent systems in other domains, here's what we project for ADCP:

Operational Gains (6-12 months)

  • 40-60% reduction in time spent on campaign setup and management
  • 25-35% improvement in media efficiency (better CPM/CPA through continuous optimization)
  • 70-80% reduction in manual errors (wrong targeting, budget overruns, etc.)

Strategic Gains (12-24 months)

  • Access to previously inaccessible premium inventory (via agent-to-agent negotiation)
  • Time-to-market reduced by half for new channels
  • Tech stack consolidation (fewer custom tools, more standardization)

Investment

  • PoC: €15-25K (4-6 weeks)
  • Production implementation: €50-100K (8-12 weeks)
  • ROI break-even: Typically 4-8 months depending on managed media budget size

Why Now Is the Right Time

We are at the crossroads of three factors:

1. The Protocol Is Young

  • Specs are still evolving
  • Early adopters influence direction
  • Little competition for expertise

2. Infrastructure Is Available

  • Operational testing framework
  • Open-source reference implementations
  • Active and collaborative working groups

3. The Market Is Ready

  • Major players are committing (Yahoo, PubMatic, Magnite)
  • Advertising budgets seek more efficiency
  • AI "hype" creates an opening for innovation
""In 12-18 months, the opportunity will be different. The protocol will be stabilized, implementations commoditized, and differentiation will be on optimization, not infrastructure. Those who move now are building tomorrow's competitive advantage.""
Aggil Team
Multi-Agent Systems Experts

How Aggil Can Support You

Our proposition is simple: we transform your existing advertising expertise into ADCP-compatible agentic capability, with measurable ROI and complete skills transfer.

What We Bring

✅ Multi-Domain Technical Expertise

  • Production multi-agent systems
  • ML for advertising optimization
  • Complex API integrations
  • Scalable cloud architecture

✅ Inside ADCP Knowledge

  • Participation in working groups
  • Protocol contributions on GitHub
  • Learnings from first PoCs
  • Active monitoring of spec evolution

✅ Proven Methodology

  • 17 years of digital transformation support
  • 40-60% average ROI on our AI projects
  • Agile approach with rapid PoCs
  • Systematic skills transfer

✅ Compliance & Security

  • GDPR-native
  • EU AI Act compliant
  • CIR/CII approval for tax optimization (up to 30% reduction)

Our Commitment

We don't sell "black boxes" you'll never understand. Our goal is to make you autonomous on this technology, while remaining a trusted partner for future evolution.

  • PoC with fixed budget and measurable KPIs
  • Total transparency on technical choices
  • Source code and exhaustive documentation
  • Team training included

Next Steps

If you are a 360 media agency, a DSP/SSP, or a company with significant advertising budgets, and you're wondering:

  • "Is ADCP relevant for us?"
  • "Where to start concretely?"
  • "What ROI can we expect?"
  • "Do we have internal skills or should we outsource?"

Free ADCP Audit: Assess Your Potential

We offer a free 2-hour audit to analyze your stack, identify priority use cases, estimate ROI, and define a realistic ADCP implementation roadmap.

Conclusion: The Agentic Era Is Not a Prediction

ADCP is not a futuristic project. It's an infrastructure in active deployment, supported by major players, with real budgets already circulating in the first pilots.

The question is not "if" agentic advertising will arrive, but "when" your organization will be ready.

At Aggil, we have been building this capability for several years. We have the expertise, tools, and methodologies to support you — whether you want to be an early adopter in Wave 1, or methodically prepare for Wave 2.

The future of programmatic advertising is being written today. Let's write it together.

---

About Aggil

Since 2008, Aggil has supported companies in their digital and AI transformation. Specialized in multi-agent systems, machine learning, and complex integrations, we help our clients automate their business processes with a constant focus on measurable ROI and skills transfer.

Key expertise: Multi-agents | ML Optimization | API Integrations | AdTech | EU AI Act Compliance

Accreditation: CIR/CII (up to 30% tax reduction)

[Learn more about our services](/services) | [Contact us](/contact)

---

Author: Fabrice TROLLET

Publication date: October 16, 2025

Reading time: 12 minutes

Intéressé par nos services ?

Découvrez comment nous pouvons vous aider à atteindre vos objectifs.