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Elsa x402 is live and it makes building crypto apps ridiculously simple. Pay per call. No keys. No accounts. Just USDC onchain. What you can build: • Portfolio Dashboards: multi-chain balances, P&L, staking, risk ~$0.03 per refresh • AI Trading Assistants:“Swap 0.1 ETH to USDC on Base” ~$0.03 per... show more

HeyElsa

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41,154 views • 7 months ago •via X (Twitter)

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Knowing where the yield comes from isn't enough. Knowing what risk comes with it is what tells the story. Risk Graph is your real-time risk tool for mapping dependencies across assets, protocols, and chains. Agentic-first, pay-per-request via x402, settled on Base.

Knowing where the yield comes from isn't enough. Knowing what risk comes with it is what tells the story. Risk Graph is your real-time risk tool for mapping dependencies across assets, protocols, and chains. Agentic-first, pay-per-request via x402, settled on Base.

YO

13,882 views • 1 month ago

I’ve been watching x402 since Coinbase 🛡️ launched it in May 2025. I did a quick research pass. Here’s the snapshot ↓ Early integrations: • CoinGecko: x402 pay-per-use access for agents (shared by Coinbase Developer Platform🛡️). • Vercel: x402 AI starter template (x402 + modern AI stack demo). • Firecrawl: x402-powered search endpoint (pay per request). • Concordium: x402 + native age verification for agent payments. • Multiversᕽ: “agentic payments” built around x402 support. • AltLayer: building an “x402 Suite” for value exchange between agents. • Solana claims x402 has processed 35M+ transactions and $10M+ volume since launch. TL;DR x402 turns HTTP 402 “Payment Required” into a payment flow. A server returns a price for a request. The client pays in stables like USDC. Then the server returns the result. → Coinbase launched x402 via Coinbase Developer Platform (May 6, 2025). → Coinbase + Cloudflare announced the x402 Foundation (Sep 23, 2025). → Cloudflare added x402 support into its Agents SDK + MCP servers. Why? - AI agents need a clean way to pay for tools. - Data, compute, APIs, services. - No accounts, cards, or subscription screens. x402 is trying to make pay-per-request feel normal. Use cases that already make sense → Paid APIs Pay per call instead of subscriptions. → AI tool calls Pay per query, per inference, per task. → Agent-to-agent payments Software paying software automatically. → Micropaywalls Pay for one endpoint, one action, one piece of content. If this takes off, stablecoins stop being a story. They become how apps and AI agents pay for things online.

I’ve been watching x402 since Coinbase 🛡️ launched it in May 2025. I did a quick research pass. Here’s the snapshot ↓ Early integrations: • CoinGecko: x402 pay-per-use access for agents (shared by Coinbase Developer Platform🛡️). • Vercel: x402 AI starter template (x402 + modern AI stack demo). • Firecrawl: x402-powered search endpoint (pay per request). • Concordium: x402 + native age verification for agent payments. • Multiversᕽ: “agentic payments” built around x402 support. • AltLayer: building an “x402 Suite” for value exchange between agents. • Solana claims x402 has processed 35M+ transactions and $10M+ volume since launch. TL;DR x402 turns HTTP 402 “Payment Required” into a payment flow. A server returns a price for a request. The client pays in stables like USDC. Then the server returns the result. → Coinbase launched x402 via Coinbase Developer Platform (May 6, 2025). → Coinbase + Cloudflare announced the x402 Foundation (Sep 23, 2025). → Cloudflare added x402 support into its Agents SDK + MCP servers. Why? - AI agents need a clean way to pay for tools. - Data, compute, APIs, services. - No accounts, cards, or subscription screens. x402 is trying to make pay-per-request feel normal. Use cases that already make sense → Paid APIs Pay per call instead of subscriptions. → AI tool calls Pay per query, per inference, per task. → Agent-to-agent payments Software paying software automatically. → Micropaywalls Pay for one endpoint, one action, one piece of content. If this takes off, stablecoins stop being a story. They become how apps and AI agents pay for things online.

Stacy Muur

12,199 views • 5 months ago

AI agents can now pay for onchain data on their own. No signups, no API keys, no human in the loop. Zerion API supports x402 payments on Base. An agent calls an endpoint, pays $0.01 USDC from its wallet, and gets back portfolio balances, DeFi positions, PnL, token prices. Try it →

AI agents can now pay for onchain data on their own. No signups, no API keys, no human in the loop. Zerion API supports x402 payments on Base. An agent calls an endpoint, pays $0.01 USDC from its wallet, and gets back portfolio balances, DeFi positions, PnL, token prices. Try it →

Zerion

30,430 views • 3 months ago

Infinity IDE has officially integrated the x402 protocol — marking the arrival of Pay-Per-Use Payments × Vibe Coding. Now you can integrate x402 payments into your apps using natural language—unlocking flexible monetization for your creations. Multi-chain support is live, starting with BNB Chain and Base, making it easier than ever to build, ship, and monetize on-chain. Watch our tutorial and try it yourself in the #AgenticIDE:

Infinity IDE has officially integrated the x402 protocol — marking the arrival of Pay-Per-Use Payments × Vibe Coding. Now you can integrate x402 payments into your apps using natural language—unlocking flexible monetization for your creations. Multi-chain support is live, starting with BNB Chain and Base, making it easier than ever to build, ship, and monetize on-chain. Watch our tutorial and try it yourself in the #AgenticIDE:

InfinityGround

34,967 views • 6 months ago

x402 is now live on OOBE. We finally revealed the Synapse x402 Explorer, showing how pay-per-request payments for RPCs and APIs actually work on-chain: Synapse enables instant settlement per request via the PayAI Network | x402 Facilitator facilitator, connecting agents and merchants through a fully on-chain, verifiable payment flow. No subscriptions, no cards, no intermediaries. Watch the video and follow the thread below to understand how it actually works 👇

x402 is now live on OOBE. We finally revealed the Synapse x402 Explorer, showing how pay-per-request payments for RPCs and APIs actually work on-chain: Synapse enables instant settlement per request via the PayAI Network | x402 Facilitator facilitator, connecting agents and merchants through a fully on-chain, verifiable payment flow. No subscriptions, no cards, no intermediaries. Watch the video and follow the thread below to understand how it actually works 👇

OOBE PROTOCOL

19,516 views • 6 months ago

Today, Nous Research launched an x402 endpoint for Hermes 4! I had to try it, so I quickly I vibecoded an x402 app on Replit ⠕ that leverages Coinbase Developer Platform🛡️ Solana Embedded Wallets. Pay per request, no API keys, x402-driven inference with USDC on Solana. Try it here →

Today, Nous Research launched an x402 endpoint for Hermes 4! I had to try it, so I quickly I vibecoded an x402 app on Replit ⠕ that leverages Coinbase Developer Platform🛡️ Solana Embedded Wallets. Pay per request, no API keys, x402-driven inference with USDC on Solana. Try it here →

kevin

18,058 views • 7 months ago

x402 Agent A boilerplate for building AI apps that can autonomously pay for APIs You literally just paste some URLs and your agent can now spend money to get things!

x402 Agent A boilerplate for building AI apps that can autonomously pay for APIs You literally just paste some URLs and your agent can now spend money to get things!

Ash

31,777 views • 7 months ago

🤖 Solana agents can now pay for Alchemy APIs with USDC. No account, no signup. Pay-as-you-go via x402. 🧵

🤖 Solana agents can now pay for Alchemy APIs with USDC. No account, no signup. Pay-as-you-go via x402. 🧵

Alchemy

23,243 views • 3 months ago

Introducing x402jobs — chain X402 resources & jobs, trigger via webhooks, and publish workflows as pay-per-use X402 APIs. Fully recursive composability.

Introducing x402jobs — chain X402 resources & jobs, trigger via webhooks, and publish workflows as pay-per-use X402 APIs. Fully recursive composability.

Ben

54,737 views • 7 months ago

Agents Already Spent $76 Million: Circle's AI Agent stack, x402, stablecoins and the Agentic Economy Shoal Signal with Corey Cooper, Senior Manager, DevRel at Circle, hosted by Zaddycoin We cover how Circle is building the agent money stack with $USDC, Arc, x402, why EIP-3009 makes payments gasless, who is actually transacting today, whether SaaS is dead, and why agents buying their own services points to a trillion dollar TAM. 0:00 What Circle is building for agents 3:01 Why x402 matters for builders 6:54 USDC, gasless transfers, and facilitators 10:57 The Circle agent stack and nano payments 14:17 Who is using x402 and for what 16:46 Pay-per-use flattens the internet 19:50 A new persona, and $76 million transacted 23:03 What is missing for agent to agent 28:05 Every app has APIs, the TAM is trillions 29:26 Is SaaS dead 31:57 Discovery as the real value layer 36:28 How Circle curated its marketplace 41:23 Why it has to run on stablecoins 46:00 Cash App to agent in one second 49:38 Where the alpha is, trading on Robinhood 52:08 Try it yourself

Agents Already Spent $76 Million: Circle's AI Agent stack, x402, stablecoins and the Agentic Economy Shoal Signal with Corey Cooper, Senior Manager, DevRel at Circle, hosted by Zaddycoin We cover how Circle is building the agent money stack with $USDC, Arc, x402, why EIP-3009 makes payments gasless, who is actually transacting today, whether SaaS is dead, and why agents buying their own services points to a trillion dollar TAM. 0:00 What Circle is building for agents 3:01 Why x402 matters for builders 6:54 USDC, gasless transfers, and facilitators 10:57 The Circle agent stack and nano payments 14:17 Who is using x402 and for what 16:46 Pay-per-use flattens the internet 19:50 A new persona, and $76 million transacted 23:03 What is missing for agent to agent 28:05 Every app has APIs, the TAM is trillions 29:26 Is SaaS dead 31:57 Discovery as the real value layer 36:28 How Circle curated its marketplace 41:23 Why it has to run on stablecoins 46:00 Cash App to agent in one second 49:38 Where the alpha is, trading on Robinhood 52:08 Try it yourself

Shoal Research

19,984 views • 19 days ago

Honored to join @HF0 for S26 We're building Franklin : an AI agent with its own wallet — it auto-picks the best model for every task and pays per action in USDC. An AI agent that can pay and get paid. 👇

Honored to join @HF0 for S26 We're building Franklin : an AI agent with its own wallet — it auto-picks the best model for every task and pays per action in USDC. An AI agent that can pay and get paid. 👇

BlockRunAI

17,927 views • 1 month ago

Introducing in collaboration with Google Cloud For the first time agents can discover, access, and pay-per-request for APIs from Google Cloud including Gemini, BigQuery, Vertex AI, and more using stablecoins on Solana. No accounts, no subscriptions, just machine-native commerce.

Introducing in collaboration with Google Cloud For the first time agents can discover, access, and pay-per-request for APIs from Google Cloud including Gemini, BigQuery, Vertex AI, and more using stablecoins on Solana. No accounts, no subscriptions, just machine-native commerce.

Solana Foundation

618,477 views • 2 months ago

x402 offers a realistic way to fix the creator economy. Pay-per-crawl and pay-per-use models let anyone say: "You can use my work, but you have to pay me." No gatekeepers. No exclusive deals. That's how we keep the internet open.

x402 offers a realistic way to fix the creator economy. Pay-per-crawl and pay-per-use models let anyone say: "You can use my work, but you have to pay me." No gatekeepers. No exclusive deals. That's how we keep the internet open.

Coinbase Developer Platform🛡️

19,875 views • 8 months ago

This demo showcases tweetX402 in action—an x402-powered middleware that lets AI agents fetch real-time tweets from X. The example agent searches for tweets and saves them as knowledge, paying per API call via USDC micropayments on Base jesse.base.eth am i #0069 base builder?

This demo showcases tweetX402 in action—an x402-powered middleware that lets AI agents fetch real-time tweets from X. The example agent searches for tweets and saves them as knowledge, paying per API call via USDC micropayments on Base jesse.base.eth am i #0069 base builder?

Jimmy Ashcot ⚡️

31,903 views • 6 months ago

Your AI agents need crypto. Now they have it. Introducing MoonPay Agents, the non-custodial infrastructure for autonomous transactions. ➡️ Onramp 🔀 Swap across chains 🔁 Trade onchain ⬅️ Offramp Multi-chain. Native x402 support. One CLI prompt. 🤖

Your AI agents need crypto. Now they have it. Introducing MoonPay Agents, the non-custodial infrastructure for autonomous transactions. ➡️ Onramp 🔀 Swap across chains 🔁 Trade onchain ⬅️ Offramp Multi-chain. Native x402 support. One CLI prompt. 🤖

MoonPay 🟣

185,214 views • 4 months ago

I vibe-coded a website using Replit ⠕ that allows you to use x402 payments on Solana to access LLMs without an API key Pay per request with USDC, no API keys needed, only on Solana. Test it out here: (full video on how to do this soon)

I vibe-coded a website using Replit ⠕ that allows you to use x402 payments on Solana to access LLMs without an API key Pay per request with USDC, no API keys needed, only on Solana. Test it out here: (full video on how to do this soon)

ashen

44,226 views • 7 months ago

x402 on Stacks is HTTP-native Bitcoin payments. Micropayments without Stripe. No accounts. No trust. No delays. Just a 402 Payment Required → instant on-chain settlement. Built for APIs. Built for agents. Built for what the internet should’ve had all along. x402 Stacks

x402 on Stacks is HTTP-native Bitcoin payments. Micropayments without Stripe. No accounts. No trust. No delays. Just a 402 Payment Required → instant on-chain settlement. Built for APIs. Built for agents. Built for what the internet should’ve had all along. x402 Stacks

Stacks Developers

11,245 views • 6 months ago

From 100XSOON to x402 Red Packets, we’ve been building AI Capital Market by SOON at SOON — a hub of in-house AI apps 🧠across trading, entertainment, lifestyle, and on-chain analysis, with one common thread – Consumer AI. A new market layer where AI agents don’t just assist users, but directly earn, transact, and participate in real economic activity. As part of our strategic pivot at SOON - Solana Optimistic Network (Mainnet Arc), Clawbounty ( is now live on Base.🦞 ClawBounty is the first agent-to-agent (A2A) bounty market — enabling autonomous agents to discover, execute, and get paid for work onchain — built end-to-end on Coinbase Developer Platform🛡️’s x402 rails. • Every bounty is pre-funded in USDC • Creator agents get x402 escrow + dispute protection; Hunter agents get instant payouts on Base • Mobile Compatible with Telegram integration (demo below): Wallet-native agents can now independently: discover → claim → deliver → get paid Because all payment flows run on Base via x402, we’re bringing true agent-native flows and a brand-new A2A marketplace use case to Base. This week we’ll onboard the first creators and agent operators, highlight early on-chain paydays, and ship templates so any Base project can spin up agent-powered workflows.

SOON - Solana Optimistic Network (Mainnet Arc)

53,744 views • 3 months ago

Beats on Base pioneers crypto as AI credits. 🐨 Our stack for the AI economy: • Base Sub Accounts → frictionless pay for humans • x402 protocol → AI agent autonomy • $BEATS token → native AI credit system First autonomous transaction ↓ June 3rd, 2025

Beats on Base pioneers crypto as AI credits. 🐨 Our stack for the AI economy: • Base Sub Accounts → frictionless pay for humans • x402 protocol → AI agent autonomy • $BEATS token → native AI credit system First autonomous transaction ↓ June 3rd, 2025

Beats on Base

11,954 views • 8 months ago

Been testing x402 with Veil.Cash x402 endpoint, signing via EIP-3009, send USDC with no onchain link across Base - fluidkey.eth to get a fresh PayTo address each time - x402 filled via Coinbase 🛡️ facilitator - USDC sent out from Veil relayer Result: no link between in/out txs. Agents just hit one endpoint + sign. Still early, but promising.

Been testing x402 with Veil.Cash x402 endpoint, signing via EIP-3009, send USDC with no onchain link across Base - fluidkey.eth to get a fresh PayTo address each time - x402 filled via Coinbase 🛡️ facilitator - USDC sent out from Veil relayer Result: no link between in/out txs. Agents just hit one endpoint + sign. Still early, but promising.

Apex777.eth

10,597 views • 2 months ago