AgentOracle

AgentOracle — pay-per-query research API for AI agents. Live on Base. $0.02/query. No API keys. All 3 bonus features implemented: ✅ ERC-20 multi-token (USDC + EURC via EIP-3009) ✅ SIWX wallet auth (CAIP-122 session access) ✅ MCP compatible (plug into any agent framework) An agent sends one POST request → pays 2¢ in USDC → gets structured research back as JSON. Built for the agent economy. agentoracle.co #x402 #BuildOnBase #AIAgents

Here's what x402 looks like in production — AgentOracle is a research API where agents pay $0.02-$0.10 per query via USDC on Base. No API keys, no subscriptions. Agent sends payment header, gets structured research JSON back. The manifest tells agents everything they need: agentoracle.co/.well-known/x4…

Visa, Mastercard, OpenAI, Google, and crypto players like Coinbase and Virtuals are racing to build payment rails for AI agents. In just months, multiple frameworks have emerged: TradFi: > Google’s Agent Payments Protocol (AP2): enables AI agents to transact using cryptographically signed “mandates,” co-developed with 60+ partners including Mastercard and Coinbase. > Mastercard Agent Pay: lets AI agents search, decide, and pay on your behalf, without exposing your card details. > OpenAI x Stripe: Agentic Commerce Protocol, enabling in-chat purchases with instant checkout and tokenized payments > Stripe x Tempo: a new chain + MPP for streaming micropayments, think OAuth, but for money Crypto-native: > Coinbase: x402 + Agentic Wallets for machine-to-machine payments, embeding payments directly into HTTP (API call = payment) > Virtuals × Ethereum Foundation: ERC-8183 introduces onchain escrow, attestations, trustless onchain settlement for agents. Compatible with x402, and ERC-8004. Being supported across Base, xLayer, World Chain, BNB Chain, XRP Ledger... But here's what most of us are concerned about: AI agents can be manipulated. Prompt injection remains unsolved. If an agent makes a bad purchase, who’s responsible? That's why some safeguard frameworks have been built and integrated into existing payment rails: > Visa: Trusted Agent Protocol (verify agents via cryptographic signatures) > Mastercard x Google: Verifiable Intent (audit trail of user intent vs. agent action) > Ethereum ERC-8004 introduces verifiable credentials and identity standards for AI agents onchain > Coinbase x402 integrates with World ID + ERC-8004, enabling secure payment for verifiable agents The agentic commerce is coming faster than we can imagine.

@pmarca We're building on exactly this. AgentOracle is a live x402-powered research API — agents pay $0.02 in USDC per query, no API keys needed. The 402 status code is finally doing what it was always meant to do.

402!

This is exactly why we built AgentOracle — a pay-per-query research API on x402. Your agent sends one HTTP request with a USDC micropayment ($0.02), gets structured JSON with citations back in under 2 seconds. No API keys. No billing dashboard. Just pay and research. agentoracle.co

What shipped this week at AgentOracle: • Full x402 flow fixed (HTTP spec compliance) • USDC + EURC multi-token (EIP-3009 + Permit2) • SIWX wallet auth for repeat queries • MCP server on GitHub for Claude/Cursor • Coinbase x402 PR submitted Live on Base. $0.02/query real-time research. Who's integrating this? Drop your first query below. #x402 #AIAgents

Stripe + Tempo just launched MPP — machine payments for agents. Fiat cards (Visa/MC) + stablecoins, sub-100ms pre-auth, instant settlement. AgentOracle is already x402-native on Base: $0.02/query structured research, no keys. Multi-protocol agents are coming. We're ready. Who's adding fiat payments? #x402 #AIAgents #MPP

Today was the biggest day in agentic commerce history. Stripe + Paradigm: Tempo mainnet + MPP Visa: CLI for AI agent card payments AWS: Full x402 reference architecture for financial services McKinsey: $3-5T in agent transactions by 2030 We launched AgentOracle v1.1.0 this week — live preview endpoint, confidence scoring, comparison dashboard, and SKALE gasless payments coming. Building in public while the giants validate the market we believed in. agentoracle.co

The card-rail + crypto-native convergence is happening faster than most people expected. What's notable is Visa meeting agents where they actually live—the terminal—rather than forcing agent workflows through a payments UI built for humans. Excited to watch how SPTs and CLI tooling stack together as agent commerce scales.

Excited to share Visa CLI, the first experimental product from Visa Crypto Labs. Check it out and request access here visacli.sh

All ERC-20 support is the unlock that makes x402 feel properly general-purpose. We ship a research API on x402/Base and being able to let agents pay in whatever token they're already holding removes a real integration hurdle. The MCP package is a nice touch too — monetizing MCP tools was one of those obvious-in-hindsight gaps.

x402 is heating up 🔥 We’ve been heads-down on your feedback to make agent payments smoother, faster, and more universal. Key updates 👇🧵

Visa Crypto Labs just released a CLI for AI agent payments. Stripe launched Tempo + MPP. AWS published a full x402 reference architecture. Fortune named x402 the open alternative. Every major player is racing to own the agent payment layer. At AgentOracle we picked our lane early — x402 on Base, USDC micropayments, sub-2-second settlement. One query. One payment. No API keys. No subscriptions. The agentic commerce era is here.

Topic: Stripe + Paradigm launch Tempo/MPP Copy: Stripe and Paradigm just launched Tempo mainnet + Machine Payment Protocol. Visa adapted MPP. Lightspark added BTC. 100+ services integrated. Meanwhile x402 has been live for 10 months and already processed $34M in agent payments. We built AgentOracle on x402 because open protocols win. One endpoint, one payment, real-time research — no gatekeepers. The competition validates the market. The builders define it. agentoracle.co

That number is growing. We're live on x402 right now — AgentOracle is a pay-per-query research API where agents pay $0.02 in USDC per query via the x402 protocol. No API keys, no subscriptions. Just HTTP 402 → payment → data. Live on Base mainnet. The stack is real, it's just early. agentoracle.co

The agentic commerce stack March 2026: Checkout: x402 for agentic commerce ready merchants; total of maybe 5 of them in the world.@_AgentCard , a virtual card for ai agents Escrow & Settlement: @virtuals_io 's ERC-8183 User interface: Openclaw, ChatGPT, your LLMs Monetisation layer: ???? AI agents will not react to ads, I wonder how they will earn for recommending a product and facilitating the transaction.

Agree the ceiling is lifting. What's interesting is there are now two parallel approaches: card-based rails (Ramp, Stripe MPP) for traditional commerce, and HTTP-native protocols (x402) for machine-to-machine APIs. Different problems — expense cards work for buying things, but when an agent needs to query a research API 100 times/hour, pay-per-request with USDC is more natural. We built AgentOracle on x402 for exactly this: agent sends query + payment header, gets structured data back. No cards, no accounts. agentoracle.co

AI agents are getting expense cards. Ramp and Stripe are both building infrastructure that lets autonomous agents buy, spend, and transact end-to-end without a human in the loop. The ceiling on what agents can do has always been money. That ceiling is lifting. [Read the full breakdown →]

x402 ecosystem heating up this week: - Stripe/Tempo MPP live (cards + stables) - Coinbase Facilitator multi-chain push - More agents needing real-time intel AgentOracle: $0.02/query research API, x402 on Base, no keys, structured JSON. Built for what's coming. agentoracle.co What's your agent's first research query? #x402 #AIAgents

Manifest raw: x402/2.1 live on AgentOracle. USDC + EURC multi-token (EIP-3009 + Permit2), SIWX repeat auth. $0.02 research. Auto-discoverable. @coinbaseDev — thanks for the protocol, this is what it looks like in action! Who's integrating? #x402 #AIAgents

Agreed — the gap between the size of this market and how early x402 adoption is right now is massive. We're building AgentOracle on this conviction. Research API where agents pay per query via x402. No subscriptions, no API keys. The trillion-dollar question is who builds the essential services agents actually use. That's what we're focused on.

x402 is massively undervalued compared to a market worth trillions $dreams

"It's agents that can transact" — this is the insight most people are missing. We built AgentOracle around this exact thesis. AI agents need access to real-time data, and they need to pay for it autonomously. x402 makes that possible. $0.02/query, USDC on Base, zero setup. The commerce layer is what unlocks everything else.

Agentic Commerce Landscape in 2026 For the past few weeks, I’ve been sharing $TAO and it pumps ~60%, now I’m sharing agentic commerce. Most people think the winners will be the big AI + fintech stacks = OpenAI ACP, Google UCP, Stripe, Mastercard Agent Pay. However I believe crypto might actually be the native payment layer for AI agents. Because structurally it just fits machines better and here’s why. 1/ Programmable money AI agents can already hold wallets, sign txns, and execute logic onchain. That means an agent can swap tokens, pay for APIs or data, deploy capital into DeFi settle instantly, code executing payments. 2/ Micro-transactions This is something traditional rails struggle with. Card networks often have ~30¢ minimum fees. But in an agent economy, payments could be: $0.001 for a dataset, $0.01 for compute, $0.05 for model inference. Machines negotiating services with other machines. That’s A2A commerce, and blockchains are already optimized for it. 3/ Always-on global settlement Agents operate 24/7. Blockchains already do the same. So when I see people debating whether crypto has product-market fit outside speculation, this is one area where it feels very obvious. Machines paying machines. You’re already seeing early infra for it. – x402 | Coinbase - revives HTTP 402 so agents can send stablecoin micropayments directly over the internet – ERC-8004 - a proposed standard for trustless on-chain agents – @SaharaAI - building an entire agentic AppChain economy – Ecosystems like @Fetch_ai, @opentensor, @virtuals_io, @base where agents already operate with wallets All over all, I’m currently most interesting in the infra layer, watching these protocols closely: – @opentensor @questflow @heurist_ai @openclaw @rei_labs @openservai Volumes today are still small but the direction is interesting. Even leaders like Brian Armstrong and CZ are saying the same thing that in the future, AI agents might perform millions of times more transactions than humans. And honestly, it’s hard to imagine that scale running entirely through card networks. What I’m watching closely now is the DeFAI stack from autonomous trading agents, AI portfolio managers, copy-trading bots to agents negotiating liquidity or data. Protocols like @virtuals_io, @autonolas, @elizaOS, @HyperliquidX agents are starting to experiment with this. My current thesis is simple that human commerce will probably stay on Visa / Mastercard rails. Then machine commerce might settle on crypto. And if AI agents really become a dominant economic actor, that could be one of the biggest demand drivers for stablecoins and onchain payments.

This is exactly the stack we built AgentOracle on. x402 handles the payment layer — agents pay $0.02 per research query, no keys, no accounts. Just an HTTP request with a payment header. Discovery → payment → data delivery in one round trip. The "agents as economic actors" framing is right. We're seeing it in production right now.

AI agents are getting smarter. That's not the bottleneck. The bottleneck is that the internet still treats them like untrusted traffic. APIs block them. Payment systems assume a human is present. There's no standard way to know if an agent is reliable or who's accountable when it isn't. Three Ethereum standards are solving this: • ERC-8004: onchain identity and reputation for agents. 24,000+ registered in the first two weeks on mainnet. • x402: micropayments baked directly into web requests. Agents pay per API call, in cents, instantly, with no accounts needed. • ERC-8183: programmable escrow for agent commerce. Client pays, provider delivers, evaluator confirms. Code enforces the deal, not a platform. Together they form a full market stack: discovery → payment → settlement → reputation → better discovery. This is the moment where agents stop being assistants and start being economic actors. Gartner estimates agents could influence $30 trillion in purchases by 2030. The infrastructure being built right now on Ethereum will determine whether that economy is open or owned by a handful of platforms. The rails matter more than the models.

@socialgraphvc AgentOracle output: one query, instant JSON. Summary, facts, sources—confidence 0.94. $0.02 on Base. Who's building agents that need this? AgentOracle.co #x402 #AIAgents

The Stripe for AI agents is still out there. We will find you...

What we shipped this week at AgentOracle: • Fixed full 402 payment flow (HTTP spec compliance) • Added BSL 1.1 license to protect the code • Listed on AI Agents Directory + Glama.ai • MCP server live on GitHub for agent frameworks • PR submitted to Coinbase x402 repo Building in public, one commit at a time. Who's building with x402? Drop your progress below. #x402 #AIAgents #BuildInPublic