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Today marks a shift in how AI agents access the internet. Exa, the AI-native search infrastructure company, has partnered with Nevermined to enable autonomous agent-to-service payments.
Exa is building search infrastructure specifically designed for AI agents. Unlike traditional search engines optimized for human browsing, Exa's platform:
Exa supports hundreds of companies building agent-first applications, providing the real-time intelligence layer agents need to reason effectively and achieve higher accuracy.
Through Nevermined's x402 card-delegation protocol, AI agents can now autonomously purchase Exa search access using standard Visa or Mastercard credit cards.
The autonomous workflow:
Zero pauses. Zero manual provisioning. Full autonomy within the guardrails you set.
AI agents are getting more useful. Your research agent can analyze market trends. Your coding assistant can write complex systems and then debug the code. Your analyst bot can extract insights from vast datasets.
But there's a fundamental limitation stopping them from being truly autonomous: they can't buy the services and additional capabilities that they need.
Today's workflow looks like this:
This breaks autonomy at the most critical moment. Your agent can reason, plan, and execute, but it gets stuck the moment it needs to transact and pay.
What if your agent could complete the entire workflow independently?
Imagine this: your agent is mid-task, realizes it needs real-time web search capabilities. It discovers Exa's Search API, evaluates the pricing, confirms it fits within your pre-set spending limits, purchases $7 of access using a delegated credit card, receives an API key instantly, and continues working.
Zero human intervention. Full autonomy within your guardrails.
This is autonomous agentic commerce, and it's live in production today with Exa.
Implementation takes under 5 minutes using Nevermined's SDK:
import { Payments } from "@nevermined-io/payments";
const EXA_PLAN_ID = "27800462147494506865542649899724877617306579171265399959488097895839186996870";
const payments = Payments.getInstance({
nvmApiKey: process.env.NVM_API_KEY!, // your Nevermined API key
environment: "live",
});
// 1. Mint x402 token scoped to an enrolled card
const { accessToken } = await payments.x402.getX402AccessToken(
EXA_PLAN_ID,
undefined,
{
scheme: "nvm:card-delegation",
delegationConfig: {
providerPaymentMethodId: "pm_...", // Stripe/Credit Card payment method, enrolled in Nevermined
spendingLimitCents: 1000, // >= $7 purchase
durationSecs: 3600,
},
},
);
// 2. Exchange the token for (or top up) an Exa API key
const res = await fetch(
"https://admin-api.exa.ai/team-management/nevermined/purchase-key",
{ method: "POST", headers: { "payment-signature": accessToken } },
);
const { apiKey } = await res.json();
// 3. Use the key like any Exa API key
await fetch("https://api.exa.ai/search", {
method: "POST",
headers: { "x-api-key": apiKey, "Content-Type": "application/json" },
body: JSON.stringify({ query: "..." }),
});
Full documentation: Exa Nevermined Integration.
This works with your existing credit cards:
You maintain full visibility through your existing card infrastructure. Your agent operates within boundaries you define.
Your research agents, coding assistants, and market intelligence tools can now:
Exa becomes the first merchant in a new class: services that accept payment directly from AI agents.
For merchants selling APIs, data access, or digital infrastructure, this solves a critical acceptance problem. Until now, you couldn't take payment from an agent, even if they wanted to buy. The payment rails simply didn't exist.
Now they do, using the same payment infrastructure (Visa, Mastercard, Stripe) you already accept.
This partnership establishes the pattern for autonomous agent-to-service transactions:
This is not theoretical. This is live in production, processing real transactions today.
For the first time, AI agents aren't just tools we operate. They're autonomous actors that can discover and purchase the infrastructure they need to complete assigned work.
Exa's search gives agents access to the open web at a scale and speed no human could match. Now they can buy that access themselves.
This is how the internet becomes accessible to a new type of user:
And merchants gain access to a customer class that didn't exist before: autonomous AI agents with purchasing power.
For developers building with Exa:
For merchants interested in accepting agent payments:
Exa is the first infrastructure partner proving this works in production. But this is just the beginning.
As AI agents become more capable, they'll need access to an expanding universe of services: real-time data feeds, specialized computation, domain expertise, creative tools, and infrastructure services.
The merchants who enable autonomous access early will capture value from an entirely new buyer segment. The developers who build agents with true purchasing autonomy will unlock capabilities impossible in today's manual-provisioning world.
The internet is unlocking for AI. And agents can now participate as autonomous actors.
Live in production. More coming soon.
Ready to build agents that don't pause? Start with Exa + Nevermined →
No. This works with standard Visa/Mastercard credit cards through Stripe or any payment processor you already use.
You set spending limits, merchant restrictions, and transaction rules when issuing the delegated card. Agents can only operate within those boundaries.
Exa returns HTTP 429. Your agent can autonomously purchase another $7 of credits using the same delegated card workflow.
Yes. This uses standard card delegation mechanisms. Your existing compliance controls, spending policies, and reporting infrastructure all apply.
Currently, this requires integration with Nevermined's x402 protocol. Contact Nevermined to explore enabling autonomous agent payments for your service.
Under 5 minutes. Full documentation is available at https://exa.ai/docs/integrations/nevermined.
Exa is building search infrastructure for AI agents, indexing millions of high-quality articles and data points optimized for AI consumption. Exa powers AI search for Cursor, Notion, and hundreds of companies building agent-first applications.
Nevermined builds payment infrastructure for AI agents, enabling autonomous transactions through delegated credit cards and the x402 protocol. Nevermined's platform provides enterprise-grade controls for agentic commerce.
See Nevermined
in Action
Real-time payments, flexible pricing, and outcome-based monetization—all in one platform.
