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Ideas shaping the agent economy.

An agent walking toward a turnstile checkpoint while a human hand lowers a price tag above it; a receipt with a check mark waits on the other side

LatestAug 2026PaymentsAgents

AG-UI Pauses the Agent. x402 Prices the Call.

CopilotKit's human-in-the-loop primitive is exactly the UX a paying agent needs before it spends. A runnable AG-UI + BlockRun walkthrough: the agent hits a 402, the price is decoded from the response, anything over a threshold waits for a human, and approval travels as shared state the model cannot forge.

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Infrastructure layers of an agent-payable API stack

Aug 2026AgentsPayments

100+ Live API Endpoints, Invisible to AI Agents

Every handler served. Nothing was broken. But an agent that reads a manifest before it calls could not see 100+ live endpoints — because the manifest restated the API instead of deriving it. What an audit of three published surfaces found.

The State of AI Agent Payments — BlockRun.ai Q1 2026 Industry Report

May 2026Payments

The State of AI Agent Payments — Q1 2026 Industry Report

Ninety days. 2.6M routed API calls. 1,500+ paying agents. The first systematic empirical description of a payment-commerce category whose buyer is software, not human.

Pay for AI API calls in USDC — x402 per-call payment, no API key required

May 2026Payments

How to Pay for AI API Calls in USDC — No Account, No API Key, No Subscription

Stop signing up. Stop entering credit cards. Stop managing API keys. Pay for any LLM call directly with USDC on Base or Solana — settled per request via x402. Tutorial with curl, TypeScript, and Python.

Nanopayments powered by Circle Gateway — abstract glowing river of micropayments flowing through a crystalline payment network

Apr 2026Payments

Nanopayments Powered by Circle Gateway Hits Mainnet — BlockRun Is Live On Day One

Nanopayments powered by Circle Gateway is live on mainnet across 11 EVM chains. BlockRun has been running on Nanopayments through testnet — here's how AI agents pay sub-cent for X data, LLMs, search, and image generation.

Franklin AI agent with a Base-native USDC wallet — economic agent paying for outcomes

Apr 2026AgentsPayments

Franklin: The First Economic Agent — An Open-Source AI That Spends Its Own USDC on Base

Franklin invents a new category: the Economic Agent — software with a wallet that prices its own actions, spends toward outcomes, and stops at a hard budget cap. Open source (Apache-2.0), TypeScript, 55+ models, 16 built-in tools, USDC settlement on Base & Solana via x402. YOPO pricing — you pay only for outcomes.

BlockRun partners with PayAI for Solana x402 payments — machine-to-machine settlement on Solana

Apr 2026Payments

BlockRun × PayAI: Solana x402 Payments Go Live Through the PayAI Facilitator

BlockRun now settles Solana AI payments through PayAI, the Solana-first x402 facilitator. Sub-second USDC settlement, gasless UX, 1,000 free monthly transactions — AI agents can pay with SOL and USDC on Solana, no bridge required.

Feb 2026Payments

AI API Cost Control: How x402 Prevents $47K Budget Overruns

A multi-agent system burned $47K in API costs. No hacker. No breach. Just bad infrastructure. Here's how x402 protocol-level budget caps prevent AI API cost overruns.

Jan 2026Payments

x402 Protocol: How AI Agents Pay for APIs Without Human Intervention

The internet wasn't built for machines to pay. x402 enables native machine-to-machine commerce — AI agents discover, negotiate, and pay for API services autonomously with USDC.