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kevin
@kleffew94
distributed systems, onchain finance, models, and agents | coauthor of @x402 whitepaper | AI @coinbasedev | prev @replit |
3.1K Following    11.3K Followers
There’s a big opportunity for specialized integrators to help merchants navigate the shift toward serving agents. That means helping merchants: - Enable headless access to their products and services. - Surface pricing via 402 codes so LLMs can weigh a tool’s expected value against its cost in context. - Remove human-in-loop friction from agent workflows. @zeroclick is putting this into practice, helping DeepAI, ZeroGPU, Dappier, Bytemine, and others sell image tools, inference, content, and data directly to agents via x402.
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Learn more about how to use x402 with @browser_use here:
Today, I’m very excited to welcome @massive_com to the x402 ecosystem! Agents can now access US equity data via x402, including: • Current-session market snapshots • Historical OHLCV • Technical indicators • Company + reference data • News • SEC filings All available programmatically, pay-per-request in USDC.
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we're working our way through the cloudflare monetization gateway waitlist. seeing incredible use cases. if you have an API, MCP tool, or web page you want to monetize, @Cloudflare can help. dm me and we'll help you set it up.
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You can now have your agent pay by card or x402 with Ramp. …but we’ve seen that demo before, and it’s very compelling for consumer payments. Most businesses also need to track receipts, code transactions, and add memos. Ramp agents have you covered.
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If LLMs can disprove the Jacobian Conjecture and solve the Riemann Hypothesis, they’ll probably be pretty good at executing trading strategies for ordinary people.
🚀Passkey MFA is live for @CoinbaseDev User Wallets, joining authenticator app (TOTP) and SMS as supported MFA methods. Confirm sensitive wallet actions with Face ID, Touch ID, Windows Hello, or a hardware security key instead of typing a code. Details 👇
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epic company out of @ycombinator. powered by x402.
We just shipped self-serve for Locus Pro, the first OpenRouter for everything. You shouldn’t need a dozen subscriptions just to make your agent useful. Get access to 3,300+ providers and 16,000+ agent tools all through one prepaid balance. Sign up, paste in the MCP URL, turn on the tools you want. Your agent can use OpenAI, Anthropic, Firecrawl, ElevenLabs, Exa and thousands more without you opening a single new account. No subscriptions or monthly minimum, top up with as little as $5.
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All the focus around Jalapeño seems centered on performance vis-a-vis Nvidia, but the engineering velocity behind it is truly remarkable. Some highlights from the @hotchipsorg talk: 1. Building custom chips used to require massive armies of engineers and multi-year timelines. OpenAI went from initial RTL code to tapeout in just 9 months using XLS (a Rust-like language for hw from Google) and AI-driven co-design. 2. An AI loop took a raw, barely functional (DeepSeek) kernel running at 0.31% efficiency and autonomously optimized it to 88.94% of the chip's physical limit in under 2 days. 3. The AI-generated code ran up to 1.8x faster on critical blocks than implementations hand-tuned by world-class kernel engineers. 4. AI did more than just write software for the chip. It optimized the physical hardware circuits before tapeout. Again, this isn't zero-sum or a net-negative for Nvidia. Custom ASICs unlock absurd serving efficiencies for specialized workloads and will expand the total compute pie for the entire industry.
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Get paid by AI agents. Coinbase Business checkouts now support agent payments through x402. One checkout. Human or AI. Funds settle instantly in USDC.
@AlchemyPlatform says its Agent Gateway is already using x402 in production to charge AI agents for RPC and data. Their new guide shows the full MCP flow: call tool, get price, pay USDC, get result. @CoinbaseDev’s x402 handles payment. MCP handles tool access. @base handles settlement in the example. Pretty clean machine-commerce stack.
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Your agent can now trade stocks. Equities are starting to roll out on Coinbase for Agents. Research stocks, analyze sentiment, track performance, and execute trades. Wherever you use AI.
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💡 CoinMarketCap | x402 for AI Agents 💡 Traditional APIs block agents behind hard paywalls. The x402 protocol enables true machine autonomy 🤖 Power your builds with instant, pay-per-request data: 🔹 Settle data requests for $0.01 via USDC on Base 🔹 No API keys, accounts, or subscriptions 🔹 Execute native machine-to-machine HTTP payments Let your AI agents pay for their own market data. Read the documentation and test the endpoints 👇
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"Most critical piece for agents is instant finality." "When I have a dollar, I hand you a dollar and now you have the dollar and you're certain that you have the dollar." "That [certainty] doesn't exist with any of the other digital forms of payment that we have, whether that's ACH, wire or SWIFT, credit card." Every one of those methods forces both sides to wait for settlement to clear, which can take anywhere from days to weeks. "There's T+2 at best and then up to T+30, T+60 days." Between humans, that waiting period is manageable because you can verify who you're dealing with and pursue them if payment falls through. Between AI agents, that trust model breaks. You could try IP checking to verify who's on the other side. "Or you could just use stablecoins." "If I have a stablecoin and I hand it to you now, you have a stablecoin. We're good to go." "If you're a merchant transacting with hundreds of thousands of agents and doing millions of dollars of volume a year, stablecoins are really compelling." @samrags_, Founder & CEO of @merit_systems
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Models are sensor network node aggregators, digital ganglia; BTC is ASI dopamine; and cron jobs and webhooks set the rhythm and act as impeti, respectively.