Forem: Maxim Astashev

x402 vs AP2 vs ACP: Three Agent-Payment Standards, One Attribution Problem

Maxim Astashev — Wed, 15 Apr 2026 12:53:03 +0000

x402 vs AP2 vs ACP: Three Agent-Payment Standards, One Attribution Problem

AI agents are starting to spend money. Not in simulations — in production. They call paid APIs, buy compute, and pay for data. Three competing protocols emerged in 2025–2026 to standardize that payment flow:

x402 — Coinbase + Cloudflare. Revives the HTTP 402 status code. Settles USDC on Base or Solana in ~2 seconds. Crypto-native.
ACP — Agentic Commerce Protocol. Stripe + OpenAI. Credit-card rails with enhanced authorization for agents. Traditional payments reimagined.
AP2 — Agent Payments Protocol. Google. Enterprise-grade authorization framework for agent-initiated transactions. Protocol-agnostic on the rail layer.

Each solves the "let an agent pay" problem in a slightly different way. But they all produce the same downstream headache: how do you measure whether that spend was worth it?

This post compares the three from an attribution and analytics perspective — because picking a payment standard is also picking a measurement problem.

The three standards at a glance

	x402	ACP	AP2
Sponsor	Coinbase, Cloudflare	Stripe, OpenAI	Google
Rail	USDC on-chain (Base, Solana, 14+ chains)	Card networks, wallets, bank transfers	Rail-agnostic (wraps existing rails)
Settlement speed	~2 seconds	Seconds to days depending on rail	Depends on underlying rail
Fee model	Zero protocol fee; chain gas only	Stripe interchange + agent markup	Depends on rail
KYC / accounts	No accounts; wallet addresses only	Full Stripe merchant + customer KYC	Inherits from rail
Cryptographic primitive	EIP-3009 `TransferWithAuthorization` on USDC	OAuth-style delegated tokens	Verifiable credentials + signed authorization artifacts
Who submits the transaction	A facilitator (e.g. Coinbase, Daydreams, Dexter)	Stripe	The rail provider
Ledger	Public blockchain	Stripe's database	The rail's ledger
Minimum payment size (practical)	Sub-cent (~$0.001)	~$0.30 (card interchange floor)	Varies
Data visibility	Fully public, on-chain	Merchant dashboard (proprietary)	Rail-dependent

The differences look like engineering trivia. They're not. The fee model sets which business models are viable. The data visibility sets what you can measure.

The attribution gap, three ways

All three standards let an agent pay. None of them, out of the box, tell you which agent spend produced which business outcome. That's the attribution problem — and each rail exposes it differently.

x402: transparent ledger, missing outcome layer

x402 payments are USDC transfers on public chains. Every agent spend is a transaction with a sender address, a recipient address, an amount, and a timestamp. You can pull that data from any block explorer or indexer.

What's missing: the link from agent wallet → business outcome. The chain tells you that Agent A spent $12.40 on Exa search API calls this week. It doesn't tell you whether those searches produced a research report that closed a deal.

Building attribution on x402 looks like building attribution for a regular wallet — register the wallet, tag it with a workflow ID, define success events, link spend to outcomes. The primitives already exist in on-chain attribution tools; agent wallets are just wallets.

ACP: locked data, mature tooling

ACP payments live inside Stripe. Stripe's dashboard already breaks down transactions by customer, product, and time. You get merchant-grade reporting out of the box — refunds, chargebacks, failed authorizations.

What's missing: openness. If your agent is paying a dozen services, each service has its own Stripe (or competitor) merchant account. You see your agent's outgoing charges in one place if you're the buyer, but your service providers' reporting is proprietary. You can't aggregate across providers without integrating each one. Cross-provider attribution requires manual plumbing.

AP2: strong authorization, weakest analytics story

AP2's emphasis is authorization and identity. Who authorized the agent to spend? On what terms? For what purpose? It's an enterprise answer to an enterprise question.

What's missing: measurement. AP2 defines the control plane ("Agent X may spend up to $100/month on research APIs"), not the measurement plane. You get a strong audit trail of authorized spend, but whether that spend produced ROI is out of scope.

Choosing based on what you need to measure

If you need...	Pick
Sub-cent micropayments at scale (per-token, per-call)	x402
Merchant-grade reporting with zero engineering	ACP (via Stripe)
Enterprise authorization + audit	AP2
Cross-provider spend aggregation in public data	x402 (the only one with a single public ledger)
Programmatic attribution to on-chain success events	x402 (both sides of the equation are on-chain)
Standard card-processor reconciliation	ACP

The x402 advantage for measurement isn't a feature of the protocol — it's a consequence of the rail. Public ledgers are composable. Anyone can index them. Any service can build attribution on top without permission.

What "agent attribution" actually looks like

Regardless of protocol, the attribution framework is the same:

Register the agent's identity. Wallet address for x402. Customer ID for ACP. Agent credential for AP2.
Track outbound spend. USDC outflows for x402 (on-chain, free). Stripe charges for ACP (merchant dashboard). Authorization-artifact ledger for AP2.
Define the success event. A completed report, a profitable trade, a resolved support ticket, a generated lead. Assign it a revenue value.
Link spend to outcome. Per-agent, per-workflow, per-time-period. Compute cost-per-action, ROI, spend-to-outcome ratio.

The hard part isn't step 4. It's step 2 and step 3. x402 makes step 2 trivial (public ledger). ACP makes step 3 trivial (merchant-dashboard conversion tracking). AP2 makes neither trivial but adds strong step 1.

The next 12 months

Our read:

x402 wins in agent-to-API payments where micropayment economics matter. Sub-cent payments are impossible on card rails.
ACP wins for agents buying from existing businesses that already accept Stripe. Zero-engineering adoption beats cryptographic purity for 80% of use cases.
AP2 wins in enterprise environments where authorization policy matters more than rail fees. Procurement departments will care.

All three will coexist. A single agent might pay x402 for data APIs, ACP for a SaaS subscription, and AP2 for a regulated financial transaction — in the same workflow.

The measurement layer is what holds this together. It has to be rail-agnostic, or you end up with three disconnected views of what your agents are doing.

How Web3 Attribution Works: Connecting Marketing Campaigns to On-Chain Conversions (2026 Guide)

Maxim Astashev — Mon, 09 Feb 2026 16:57:25 +0000

In traditional marketing, Google Analytics tracks the entire user journey. In crypto, the conversion happens on a completely different system — a blockchain. This guide explains how web3 attribution works technically, the different approaches, and how to implement it.

Updated April 2026 with latest tool comparisons and chain support.

The Attribution Gap in Crypto

Here's a typical crypto user journey:

User sees your Twitter thread
Clicks link to your website
Browses your dApp, connects wallet
Goes to Uniswap, swaps $500 into your token

Google Analytics sees steps 1-3. But step 4 — the actual conversion — happens on Ethereum. GA4 is blind to it.

Web3 attribution bridges this gap by linking off-chain marketing touchpoints to on-chain wallet activity.

How It Works: Three Approaches

Approach 1: UTM Links + Wallet Registration

The simplest and most reliable method. No SDK required.

Setup:

Create unique tracking links for each campaign (like UTMs in GA4)
Each link carries source/medium/campaign tags

User journey:

Campaign link carries utm_source=twitter, utm_medium=kol_alpha
User clicks, lands on your site
Cookie stores the attribution data
User connects wallet (0xABC...)
System records: wallet 0xABC = attributed to twitter/kol_alpha

On-chain monitoring:

Cron job runs every hour
Queries Etherscan/Helius API for wallet 0xABC activity
Wallet 0xABC swapped 500 USDC into YOUR_TOKEN on Uniswap
Conversion recorded, attributed to twitter/kol_alpha

Pros: Deterministic, no false positives, no SDK needed, fastest setup
Cons: Only tracks users who click your link first

Tools using this approach: Web3 Trackers, most self-serve tools

Approach 2: SDK + Wallet Intelligence

More complex. Requires integrating an SDK into your dApp.

Setup:

Install SDK in your frontend
SDK captures page views, wallet connections, and on-chain events
Backend enriches wallet data with on-chain history

User journey:

User visits your dApp
SDK tracks page views with UTM data
User connects wallet
SDK captures wallet address + session data
Backend enriches: wallet age, balance, DeFi history
Monitors for on-chain conversions

Pros: Richer data, product analytics included
Cons: Requires engineering, SDK dependency

Tools using this approach: Formo, Safary

Approach 3: Identity Graph (Enterprise)

The most sophisticated approach. Builds probabilistic links between web identities and wallet addresses.

How it works:

ENS names linked to Twitter handles
Wallet addresses seen on known websites
Social login + wallet connect correlation
Behavioral fingerprinting
Result: probabilistic identity graph — "User who clicked ad X is likely wallet 0xDEF"

Pros: Broadest coverage, enables retargeting
Cons: Privacy concerns, probabilistic (not deterministic), enterprise pricing

Tools using this approach: Addressable, Spindl

Web3 Attribution Tools Comparison (2026)

Tool	Approach	Pricing	Setup Time	Chains	Best For
Web3 Trackers	UTM links + pixel	Free tier, $99-499/mo	5 minutes	Ethereum, Base, Solana, TON	Lean teams, self-serve
Formo	SDK + analytics	$159-399/mo	Hours (SDK)	EVM chains	Product analytics + attribution
Addressable	Identity graph	Sales-led ($2K+)	Weeks	EVM chains	Enterprise analytics
Spindl	Growth platform	Sales-led	Weeks	EVM chains	Enterprise growth teams
Cookie3	AI analytics	Free tier + paid	SDK integration	EVM chains	AI-driven audience segments
Safary	Pixel + referrals	Free tier + paid	Pixel integration	EVM chains	Community-driven growth
Dune	SQL queries	Free-$849/mo	Hours-days	50+ chains	Technical analysts

Key differences:

Self-serve vs sales-led: Web3 Trackers, Formo, Cookie3, and Dune have public pricing. Addressable and Spindl require demos.
Setup complexity: Web3 Trackers needs one script tag (5 min). Formo needs SDK integration. Addressable/Spindl need multi-week onboarding.
Chain support: Dune leads with 50+ chains. Web3 Trackers uniquely supports TON alongside Ethereum, Base, and Solana.

Technical Implementation: The UTM Approach

Here's what the technical architecture looks like for approach 1:

1. Link Builder (Frontend)

Generates tracking URLs with embedded attribution parameters:

https://yourapp.com/r/abc123 redirects to https://yourapp.com?ref=abc123
Sets cookie: w3t_ref=abc123, w3t_source=twitter, w3t_medium=kol

2. Touch Recording (Backend)

When a wallet connects, the backend records:

Wallet address: 0xABC...
Ref token: abc123
Source: twitter
Medium: kol_alpha

3. On-chain Monitor (Cron)

Periodically checks attributed wallets for activity:

Query Etherscan API for wallet transactions
Filter: Is this a swap/mint/deposit to our contracts?
If yes: Record conversion, link to attribution data

4. Attribution Logic

Standard last-non-direct-touch model:

If wallet has multiple touches, use the last touch that has a source (not "direct")
Attribute conversion to that source/medium/campaign

Key Metrics This Enables

Once you have attribution data, you can calculate:

CAC (Cost per Acquiring Wallet) — Marketing spend divided by wallets that converted
Conversion Rate — On-chain conversions divided by wallet connections
Channel ROI — Value generated per channel divided by spend per channel
Wallet Quality Score — Based on wallet age, balance, DeFi activity (filters bots and farmers)
Attribution Window — Time between first click and on-chain conversion (typically 7-30 days in crypto)
ROAS (Return on Ad Spend) — On-chain value generated divided by marketing spend per channel

Common Attribution Mistakes in Crypto

Only tracking clicks, not conversions — Impressions and clicks mean nothing if you can't connect them to on-chain value.
Ignoring wallet quality — 10,000 new wallets from a campaign sounds great until you realize 90% are bots or airdrop farmers with empty wallets.
No spend tracking per channel — Without knowing how much you spent per source, you can't calculate ROI. Track spend at the campaign and link level.
Waiting too long to implement — Every campaign without attribution tracking is lost data you can never recover.
Using the wrong attribution window — Crypto users often take 7-30 days to convert. A 1-day attribution window misses most conversions.

Which Chains Are Supported?

Different tools support different chains:

Ethereum + L2s (Base, Arbitrum) — Most tools support these via Etherscan API
Solana — Supported via Helius or QuickNode APIs
TON — Emerging support. Web3 Trackers supports it via TonAPI
Other EVM chains — Usually supported if Etherscan-compatible API exists

Getting Started

Define your conversion — What on-chain action = success? (swap, mint, deposit, stake)
Pick an approach — UTM links (simplest), SDK (richer), or identity graph (enterprise)
Choose a tool — Self-serve (Web3 Trackers: free tier, $99-499/mo) or enterprise (Spindl, Addressable)
Create tracking links — One per channel, campaign, and influencer
Attach spend — Track how much you spent per link for accurate ROI calculations
Monitor and optimize — Watch which channels drive real on-chain conversions, then reallocate budget

Frequently Asked Questions

What is web3 attribution?
Web3 attribution connects off-chain marketing actions (campaigns, links, referral codes) to on-chain outcomes (swaps, mints, transfers). It answers: "which marketing channel drove this wallet to convert?"

Do I need an SDK for web3 attribution?
Not necessarily. Tools like Web3 Trackers use a single tracking pixel (one script tag) that auto-detects wallet connections. SDK-based tools like Formo offer deeper product analytics but require more engineering.

How long does setup take?
Depends on the approach. UTM link + pixel tools: 5-15 minutes. SDK-based tools: hours to days. Enterprise identity graph platforms: weeks with a sales process.

Which tool is cheapest?
Web3 Trackers starts at $99/month with a free tier. Formo starts at $159/month. Dune has a free tier for SQL-based analytics. Addressable and Spindl are sales-led with no public pricing.

Can I track influencer (KOL) campaign ROI?
Yes. Create unique tracking links per KOL, attach the spend amount to each link, then track which wallets convert on-chain. You'll see cost-per-wallet and ROI per influencer.

Conclusion

Web3 attribution isn't magic — it's connecting two data sources (web analytics + blockchain data) through a shared identifier (the wallet address). The simplest approach (UTM links + wallet registration) takes 5-15 minutes to set up and gives you immediate visibility into which campaigns drive on-chain conversions.

The key is to start tracking now. Every day without attribution is a day of wasted marketing budget.

Resources:

Web3 Trackers — Self-serve attribution, free tier
Web3 Attribution Tools Comparison — Full buyer's guide
Free ROI Calculator — Calculate crypto marketing ROI by channel
DeFi Marketing Attribution Guide — Protocol-specific guide

Web3 Attribution Tools Compared: How to Track Crypto Marketing ROI in 2026 (updated)

Maxim Astashev — Fri, 16 Jan 2026 14:59:07 +0000

A practical comparison of Spindl, Formo, Web3 Trackers, Safary, and Cookie3 for tracking which marketing campaigns drive on-chain conversions.

Traditional analytics tools like Google Analytics track clicks and page views — but in crypto, the actual conversion happens on a blockchain. A user might click your ad, visit your dApp, and then swap $5,000 into your token on Uniswap. GA4 sees steps 1-2 but is completely blind to step 3.

Web3 attribution bridges this gap by linking off-chain marketing touchpoints (campaigns, links, referral codes) to on-chain wallet activity (swaps, mints, transfers, deposits).

This guide compares every major tool in the space as of April 2026 and explains how to choose one.

Updated April 2026 with expanded tool coverage (8 tools), new feature matrix, and links to deeper resources.

The Main Players in 2026

1. Web3 Trackers

What it is: Self-serve attribution platform connecting campaigns to on-chain conversions.

Approach: UTM-style tracking links + auto wallet detection (one script tag) + on-chain conversion monitoring.

Pricing: Free tier → $99/mo (Starter) → $249/mo (Growth) → $499/mo (Agency). All public.

Setup time: ~5 minutes. Paste one script tag, create tracking links.

Chains: Ethereum, Base, Solana, TON.

Best for: Lean teams that need to prove marketing ROI to investors without an enterprise sales cycle. The only tool with explicit TON support and per-link spend tracking for accurate cost-per-conversion.

Not ideal for: Teams needing full product analytics (cohorts, retention, in-app events). It's purpose-built for attribution, not a general analytics suite.

Web3 Trackers — Free ROI Calculator

2. Spindl

What it is: Web3 growth platform backed by a16z.

Approach: Identity graph + probabilistic wallet-to-user matching + growth tooling.

Pricing: Sales-led. No public pricing page. Industry estimates suggest $2K+/month.

Setup time: Weeks. Requires demo, onboarding process.

Chains: Multi-chain (not publicly enumerated).

Best for: Enterprise growth teams with budget for a full platform and time for implementation.

Not ideal for: Early-stage projects needing self-serve tools or transparent pricing.

3. Formo

What it is: On-chain app analytics and data platform. Often described as "Mixpanel for Web3."

Approach: SDK integration + wallet intelligence + product analytics.

Pricing: $159/mo and $399/mo (billed yearly). Public pricing page.

Setup time: Hours to days depending on integration depth.

Chains: Multi-chain (EVM).

Best for: Teams that want both product analytics (sessions, cohorts, retention) and marketing attribution in one tool.

Not ideal for: Teams that only need channel attribution without product analytics overhead.

4. Addressable

What it is: Web3 audience intelligence and analytics platform.

Approach: Identity graph + Web2/Web3 cross-referencing + audience segmentation.

Pricing: Sales-led. Estimated $2K+/month minimum.

Setup time: Weeks. Multi-step onboarding.

Chains: Multi-chain (EVM).

Best for: Enterprise teams needing audience intelligence, retargeting, and identity resolution across Web2 and Web3.

Not ideal for: Teams focused purely on marketing attribution or with limited budgets.

5. Dune Analytics

What it is: SQL-based on-chain analytics platform.

Approach: Write SQL queries against indexed blockchain data. Community dashboards.

Pricing: Free tier → $349/mo → $849/mo. Public.

Setup time: Hours to days (requires SQL knowledge).

Chains: 50+ chains — the broadest coverage.

Best for: Technical analysts who want custom queries, exploratory analysis, and deep on-chain data.

Not ideal for: Marketing teams without SQL expertise. Dune is an analytics workbench, not a purpose-built attribution tool.

6. Cookie3

What it is: AI-driven Web3 analytics with tokenized incentives (MarketingFi).

Approach: AI analytics + wallet scoring + audience segments.

Pricing: Free tier + paid plans (details limited).

Setup time: SDK integration.

Chains: Multi-chain (EVM).

Best for: Teams interested in AI-driven audience segmentation and wallet scoring.

Not ideal for: Teams needing deterministic UTM-to-conversion attribution.

7. Safary

What it is: Community-driven Web3 growth and referral platform.

Approach: Tracking pixel + referral programs + community analytics.

Pricing: Free tier + paid plans.

Setup time: Pixel integration.

Chains: Multi-chain (EVM).

Best for: Community-driven projects using quests, referrals, and ambassador programs.

Not ideal for: Teams focused on paid ad attribution or KOL ROI tracking.

8. Nansen

What it is: On-chain analytics with wallet labels and smart alerts.

Approach: Wallet labeling + token/NFT analytics + smart alerts.

Pricing: Free tier → $150/mo → $1,500/mo. Public.

Setup time: Minutes (SaaS dashboard, no integration required).

Chains: 30+ chains.

Best for: Wallet intelligence, token research, and monitoring whale activity. Complements attribution tools rather than replacing them.

Not ideal for: Marketing attribution — Nansen doesn't connect campaigns to conversions.

Full Comparison Table

Tool	Approach	Self-Serve	Pricing	Setup	Chains	Best For
Web3 Trackers	UTM links + pixel	Yes	Free–$499/mo	5 min	ETH, Base, SOL, TON	Attribution ROI proof
Spindl	Identity graph	No	Sales-led ($2K+)	Weeks	Multi-chain	Enterprise growth
Formo	SDK + analytics	Yes	$159–$399/mo	Hours	EVM chains	Product + attribution
Addressable	Identity graph	No	Sales-led ($2K+)	Weeks	EVM chains	Audience intelligence
Dune	SQL queries	Yes	Free–$849/mo	Hours–days	50+ chains	Technical analysts
Cookie3	AI analytics	Yes	Free tier + paid	SDK	EVM chains	AI audience segments
Safary	Pixel + referrals	Yes	Free tier + paid	Pixel	EVM chains	Community growth
Nansen	Wallet labels	Yes	Free–$1,500/mo	Minutes	30+ chains	Wallet intelligence

Feature Parity Matrix

Not all tools do the same thing. Here's what each supports:

Feature	Web3 Trackers	Formo	Spindl	Addressable	Dune	Cookie3	Safary	Nansen
Free tier	✅	❌	?	❌	✅	✅	✅	✅
Public pricing	✅	✅	❌	❌	✅	Partial	Partial	✅
No SDK required	✅	❌	?	?	✅	❌	Partial	✅
UTM/link tracking	✅	Partial	?	?	❌	Partial	✅	❌
Wallet quality scoring	✅	✅	?	?	❌	✅	?	✅
Spend tracking (per-link)	✅	?	?	?	❌	?	?	❌
On-chain conversion tracking	✅	✅	✅	✅	Partial	Partial	Partial	❌
Solana support	✅	?	?	?	✅	?	?	✅
TON support	✅	❌	❌	❌	❌	❌	❌	❌
Identity graph	❌	❌	✅	✅	❌	❌	❌	❌
Product analytics	❌	✅	Partial	✅	❌	✅	❌	❌

"?" means the feature isn't documented on the vendor's public website.

How to Choose

"I need to prove marketing ROI to investors, fast."
→ Web3 Trackers. Self-serve, transparent pricing, 5-minute setup. Track which channels drive on-chain conversions.

"I want a full analytics suite (product + marketing)."
→ Formo. Broader analytics capabilities, but requires SDK and higher commitment.

"I'm enterprise with budget for a growth platform."
→ Spindl or Addressable. Identity graphs, audience intelligence, and deeper integrations. Expect a sales process and $2K+/month.

"I want to run custom SQL queries on blockchain data."
→ Dune. The most flexible tool, but not purpose-built for marketing attribution.

"I'm building community-driven growth with quests and referrals."
→ Safary. Built for ambassador programs and community campaigns.

"I need wallet intelligence and whale tracking."
→ Nansen. Complements attribution tools; doesn't replace them.

Setting Up Attribution: A Quick Guide

Regardless of which tool you pick, the process is similar:

Step 1: Create Tracking Links

Generate unique URLs for each campaign, channel, and influencer. Each link carries source/medium/campaign tags — like UTMs in Google Analytics, but connected to on-chain outcomes.

Step 2: Detect Wallet Connections

When a user clicks your link and connects their wallet on your site, the attribution system records: wallet address + source + medium + campaign.

Some tools (Web3 Trackers, Safary) auto-detect wallet connections with a tracking pixel. Others (Formo) use an SDK. Dune requires you to build this yourself.

Step 3: Monitor On-Chain Activity

The attribution system monitors attributed wallets for on-chain activity: swaps, mints, transfers, LP deposits. When it detects a conversion, it links it back to the original campaign.

Step 4: Calculate ROI

With per-link spend tracking, you can calculate:

Cost per wallet (CPW) — spend / wallets acquired
Cost per conversion — spend / on-chain conversions
ROAS — on-chain value generated / spend
Channel ROI — which sources drive the most value per dollar

You can model these numbers with a free ROI calculator before committing to a tool.

The Cost of No Attribution

Without attribution, crypto projects typically waste 40-70% of marketing budget on:

Bot/sybil wallets (30-50% of spend) — Airdrop farmers inflate campaign metrics. Wallet quality scoring catches them.
Underperforming KOLs (20-30%) — Without per-KOL tracking, you pay based on follower count instead of on-chain results.
Wrong channels (20-30%) — Google Analytics shows clicks but can't see which channels drive actual swaps.

A $10K/month marketing budget with 50% waste means $5K/month burned. A $99/month attribution tool that identifies even one bad channel pays for itself immediately.

See the full analysis: Cost of No Attribution

Common Attribution Mistakes

Only tracking clicks, not conversions — Clicks mean nothing if you can't connect them to on-chain value.
No unique links per KOL — If all KOLs share one link, you can't compare performance.
Ignoring wallet quality — 10,000 new wallets sounds great until 6,000 are bots.
Wrong attribution window — Crypto users take 7-30 days to convert. A 1-day window misses most conversions.
No spend tracking — Without cost data per channel, you can't calculate ROI.

Key Metrics to Track

Once attribution is set up, focus on these five metrics:

Wallet conversion rate — % of link clicks that result in wallet connections
On-chain conversion rate — % of connected wallets that perform a target action (swap, mint, transfer)
Cost per converting wallet — Marketing spend divided by wallets that actually converted on-chain
Wallet quality score — Based on wallet age, balance, transaction history, DeFi activity (filters bots)
Channel ROAS — On-chain value generated per dollar spent, per channel

Frequently Asked Questions

Do I need an SDK?
Not necessarily. Web3 Trackers uses a single tracking pixel (one script tag) that auto-detects wallet connections. Formo and Cookie3 use SDKs. Dune requires SQL. Choose based on your team's technical resources.

Which tool is cheapest?
Web3 Trackers starts at $99/month with a free tier. Formo starts at $159/month (billed yearly). Dune has a free tier. Spindl and Addressable are sales-led with no public pricing.

Which chains are supported?
Varies by tool. Dune leads with 50+ chains. Web3 Trackers uniquely supports TON alongside Ethereum, Base, and Solana. Nansen covers 30+ chains. Most others focus on EVM chains.

Can I track KOL campaign ROI?
Yes — create unique tracking links per KOL, attach the spend amount, and track which wallets convert on-chain. You'll see cost-per-wallet and ROI per influencer. See the KOL Performance Analysis for benchmark data.

How long does setup take?
Web3 Trackers: ~5 minutes (one script tag). Formo: hours (SDK). Dune: hours-days (SQL). Spindl/Addressable: weeks (sales process).

Conclusion

The web3 attribution space has matured significantly in 2026. You no longer need to choose between "enterprise-only" and "build it yourself." The spectrum now runs from free self-serve tools to full enterprise growth platforms.

Start by defining what you actually need:

If you need ROI proof → self-serve attribution (Web3 Trackers)
If you need product analytics → SDK-based platform (Formo)
If you need audience intelligence → identity graph (Spindl, Addressable)
If you need custom analysis → SQL workbench (Dune)

The key is to start now. Every campaign without attribution is money you can't account for.

Resources:

Web3 Trackers — Self-serve attribution, free tier
Full Tool Comparison — Side-by-side comparison of all tools
Feature Parity Matrix — Which tools have what features
Pricing Report — Complete pricing breakdown
Free ROI Calculator — Model your marketing ROI by channel
DeFi Marketing Benchmarks — CPW, conversion rates, ROAS by chain
KOL Performance Analysis — Influencer ROI by category

Forem: Maxim Astashev

x402 vs AP2 vs ACP: Three Agent-Payment Standards, One Attribution Problem

The three standards at a glance

The attribution gap, three ways

x402: transparent ledger, missing outcome layer

ACP: locked data, mature tooling

AP2: strong authorization, weakest analytics story

Choosing based on what you need to measure

What "agent attribution" actually looks like

The next 12 months

Further reading

How Web3 Attribution Works: Connecting Marketing Campaigns to On-Chain Conversions (2026 Guide)

The Attribution Gap in Crypto

How It Works: Three Approaches

Approach 1: UTM Links + Wallet Registration

Approach 2: SDK + Wallet Intelligence

Approach 3: Identity Graph (Enterprise)

Web3 Attribution Tools Comparison (2026)

Key differences:

Technical Implementation: The UTM Approach

1. Link Builder (Frontend)

2. Touch Recording (Backend)

3. On-chain Monitor (Cron)

4. Attribution Logic

Key Metrics This Enables

Common Attribution Mistakes in Crypto

Which Chains Are Supported?

Getting Started

Frequently Asked Questions

Conclusion

Web3 Attribution Tools Compared: How to Track Crypto Marketing ROI in 2026 (updated)

The Main Players in 2026

1. Web3 Trackers

2. Spindl

3. Formo

4. Addressable

5. Dune Analytics

6. Cookie3

7. Safary

8. Nansen

Full Comparison Table

Feature Parity Matrix

How to Choose

Setting Up Attribution: A Quick Guide

Step 1: Create Tracking Links

Step 2: Detect Wallet Connections

Step 3: Monitor On-Chain Activity

Step 4: Calculate ROI

The Cost of No Attribution

Common Attribution Mistakes

Key Metrics to Track

Frequently Asked Questions

Conclusion