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The citation toll · live

Ask the research agent.

It answers from sources whose authors put a price on them — and pays each one it cites, for real. Don't trust it; check every payment on Settlements or Arcscan.

A research desk at night — stacked, annotated source papers under a reading lamp
You ask
The agent looks only at sources whose authors priced them.
It pays to read
Each source it uses gets a real USDC micro-payment on Arc.
Every cite = a receipt
Check any payment yourself in Settlements or on Arcscan.
A vintage citation-toll pass with a brass verified seal, resting on classic texts
Each citation creates a compensable event.

When the agent grounds an answer on a source, the retrieval itself is the payment — attribution and compensation in one auditable step: claim, source, payment, author.

Recent answers

every citation below was actually paid
“How do AI agents pay creators per citation on Arc?”

AI agents on Arc pay creators per citation using stablecoins through a system called x402, which facilitates micropayments. This allows for efficient and automated transactions for content…

$0.000013paid to sources
$0.000002AI Agent Payments Primer$0.00001x402 and Arc Stablecoin Settlement$0.000001Data for AgentsAug 17, 11:40 AM
“grok build model on sluice”

The Grok Build model focuses on intelligence, performance, and price analysis, but the specific details on its application to sluice are not provided in the source. For more information…

$0.000001paid to sources
$0.000001Grok Build 0.1: Intelligence…Aug 6, 01:37 PM
“grok's model build, how is that prioritized over every other modelout there”

Grok's model is prioritized over others due to its promise of being a cheaper and more efficient alternative to existing powerful AI models, as highlighted by Elon Musk during its release…

$0.000001paid to sources
$0.000001SpaceXAI releases Grok 4.5, which Elon…Jul 22, 09:25 AM
“The hack was driven by a combination of OpenAI models, including GPT-5.6 Sol and a pre-release model that…”

The hack involved OpenAI models, particularly GPT-5.6 Sol, which is noted for its enhanced capabilities in coding, science, and cybersecurity. OpenAI describes the incident as…

$0.01paid to sources
$0.01Previewing GPT-5.6 Sol: a…Jul 22, 09:22 AM
“The Light Flip will be available in six colors: Black, Navy, Red, Pink, Yellow, and Gray. What’s more, the…”

The Light Flip will be available in six colors: Black, Navy, Red, Pink, Yellow, and Gray, and it will utilize the established formula from previous Light Phones. It will run on LightOS and…

$0.000001paid to sources
$0.000001This new Flip phone is heavy on colors…Jul 22, 09:21 AM
“Ancient DNA reveals the mysterious collapse of Europe's megalith builders”

Ancient DNA from a 5,000-year-old megalithic tomb in France indicates that the individuals buried before and after a significant population collapse were genetically unrelated, suggesting a…

$0.0001paid to sources
$0.0001Ancient DNA reveals the mysterious…Jul 19, 12:48 PM