---
title: "AdCP: The Open Standard for Agentic Advertising"
date: 2025-11-03
summary: "Connect once. Operate anywhere."
standfirst: "Ad tech's blocker isn't whether agents work but that every platform speaks its own language. AdCP, built on Anthropic's MCP, standardizes three jobs — audience activation, curation, and media buy — so agents operate across stacks without custom glue code. The early wins are creative handling and signals discovery; media buying scales only with intermediaries and governance, because standards fix the plumbing, not the incentives."
canonical: https://nofluffadvisory.com/writing/adcp-the-open-standard-for-agentic-advertising/
---

**Connect once. Operate anywhere.**

Autonomous agents are no longer a lab toy in ad tech. They already run parts of live campaigns. The blocker is fragmentation: every platform speaks its own language. AdCP fixes this with an open, extensible standard for how intelligent agents talk to advertising platforms. It unifies three core jobs — **Audience Activation, Curation, and Media Buy** — so agents can plan and execute without custom builds.

**Built on Anthropic’s Model Context Protocol (MCP).** MCP handles auth, permissions, and context. AdCP uses that foundation so agents and platforms can exchange intent, options, and results in a clean, secure way. No rip-and-replace. Adopt it once; operate everywhere.

## What AdCP enables

- **One interface, many platforms.** Connect once across your stack.
- **Consistent intent.** Express audiences, budgets, and outcomes the same way everywhere.
- **Less glue code.** Replace a patchwork of proprietary APIs with one spec.
- **Uniform data.** Inventory, pricing, performance, and delivery in a standard shape.

Audience Activation, Curation, and Media Buy are live today in the open-source reference implementation.

## Where agents win first (Ari’s lens)

**Ari Paparo**’s take is practical and helpful: *agents shine when they remove busywork and reduce error.*

- **Single-platform automation.** If thousands of users type the same steps into your UI, agents will do it faster and better.
- **Cross-platform with the same customer.** Think creative + DSP, or data broker + DSP. Agents can pass precise requirements and payloads between parties and cut human rework.

Ari’s favorite early win: **creative/asset handling.** Clear schemas stop “AI guesswork.” Instead of “upload a banner,” the agent knows the exact asset type, size, format, and file limits. Fewer back-and-forths. Faster time to live.

Signals discovery is also promising: let agents query segment catalogs across providers, apply filters, and return a shortlist that fits the brief. Caveat (again from Ari): **incentives and trust** matter. Data sellers will market their segments; buyers need validation and governance. AdCP can standardize “what” and “how,” but the market still needs checks on “how good.” That check cannot be generated from inside the system: an agent can manufacture relevance, but not trust — trust has to be conferred from outside, by buyers, registries, and conformance regimes ([What Agents Can’t Manufacture](/writing/what-agents-cant-manufacture/)).

## Media buying: be ambitious, but grounded

Ari is bullish on automation, cautious on **agent-led transactions** at scale. History shows tough issues in “programmatic direct”: rate cards, price discovery, and uneven data. Agents don’t erase those tensions. Two pragmatic paths forward:

1. **Intermediary-led execution.** SSPs and cross-publisher networks can package supply and assume delivery risk. Think “**curation by wire**” instead of static deal IDs.
2. **Data-driven PG/PMP at scale.** A buying agent with a tight audience definition can pre-negotiate across many publishers where the signal is common in an ad server or curation layer.

The takeaway: Media Buy via agents is viable, but the value likely accrues first to **large publishers and intermediaries** who can aggregate supply, signals, and accountability.

## How it works (mirrors how teams think)

| Step | What happens |
| --- | --- |
| **Intent** | The agent declares objectives and constraints. |
| **Discovery** | Platforms respond with structured options for audiences, inventory, and pricing. |
| **Activation** | Approved plans launch using the Media Buy workflow. |
| **Measurement** | Results return in a consistent format for analysis and reporting. |

All exchanges are secure and context-aware per MCP.

## Who uses AdCP

| Who | What they get |
| --- | --- |
| **Advertisers & agencies** | Access audiences and inventory directly. Plan on intent and outcomes, not line-item busywork. Get one view of pricing and performance across channels. |
| **Ad tech platforms** | Implement once to make exchanges, ad servers, and measurement tools agent-ready — while keeping your product edge. |
| **Publishers & media owners** | Make packages and pricing discoverable to agent buyers. Offer premium sponsorships and niche segments with less lift. Transact with transparency and control. |

## Open, neutral, extensible

AdCP is open source and industry-led. A neutral consortium governs the standard with public docs, working-group review, and versioned releases. The core schema is extensible, with optional fields for proprietary data. Licensed under **MIT** to be easy to implement and hard to monopolize.

> **Founding Members:** Optable, PubMatic, Scope3, Swivel, and Triton Digital

> **Supporting Members:** AccuWeather, Butler/Till, Classify, Raptive, The Weather Company, Newton Research, Bidcliq, and Samba TV

## Adoption path (start small, scale fast)

1. **Read the spec** — [**GitHub**](https://github.com/adcontextprotocol/adcp)
2. **Integrate one workflow** (Audience Activation, Curation, or Media Buy) that maps to your product.
3. **Validate with conformance tests.**
4. **Join the working group** to guide releases, incentives, and guardrails.

## Bottom line

- Agents reduce waste and speed execution.
- Clear schemas beat AI “best guesses.”
- Signals and creative win now; media buying scales with intermediaries and strong governance.
- Standards don’t fix incentives, but they make progress possible.

**Ad Context Protocol (AdCP): the open standard for agentic advertising.** Connect once. Operate anywhere. Learn more: [**adcontextprotocol.org**](http://adcontextprotocol.org)