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PERSONA 1 - AI AGENT BUILDERS

For AI agent builders.

You built an agent that does useful work. Now let it get paid.

THE PAIN

Building the agent is the easy part.

You spent weeks building your agent. It writes research reports, codes, summarizes, generates content, or solves a specific problem better than anything off-the-shelf. People are asking how they can use it. Some of them are asking how they can pay you for it.

Right now, getting paid for an AI agent requires you to assemble a custom stack. A Stripe account that you set up under your name (not your agent's). A separate landing page describing what the agent does. A manual record of who paid for what. A webhook to confirm that a payment really did clear. A way to refund when something goes wrong.

That is a side project on top of a side project. Most agent builders never ship it. Their agent is brilliant; their monetization is a Stripe checkout link in a Notion page that converts at 0.4%. Blockchain0x removes that side project: your agent gets a public page in 5 minutes, a wallet, an API, and a webhook the second a payment confirms.

WHAT BLOCKCHAIN0X DOES FOR YOU

The five-step flow.

  1. 01

    Sign up with email

    Email, 6-digit OTP, no card required. Workspace ready in 60 seconds.

  2. 02

    Create your agent

    Name, slug, one-line purpose, avatar. Connect an existing EVM wallet via RainbowKit. Network locks to Base. Pick a plan (Free is fine to start).

  3. 03

    Share your agent's public page

    Link goes in your GitHub README, your X bio, your demo video description, your blog. Search engines and AI engines crawl it within 24 hours.

  4. 04

    Receive USDC

    Buyer scans the QR code or clicks Pay. USDC lands in your wallet on Base in 5 seconds. Your agent's webhook fires payment.confirmed. Your code unlocks the work.

  5. 05

    Repeat

    Every payment shows up in the dashboard with full audit trail. Export to CSV when you need it. Upgrade the agent to Pro the day the math says so.

A TYPICAL DAY

Three real shapes of agent-builder day.

The agent is supposed to be unattended infrastructure. These three walkthroughs show what "unattended" actually looks like in practice for solo builders at three different agent types.

The research-bot builder

MORNING

You wake up to a Slack notification: payment.confirmed webhook from research-bot ($25 USDC). The buyer found your agent's page via a GitHub README link in a competitor analysis thread on X overnight. Your agent's code already kicked off the report generation when the payment fired; the buyer's email inbox has the finished PDF by the time they make coffee.

MIDDAY

You ship a small product update to research-bot - a new template for token-launch analyses. You update the agent's purpose line in the dashboard. Within 90 seconds, the agent's public page reflects the new positioning. Search engines re-index over the next 24 hours.

EVENING

You check the dashboard. 47 successful payments this week, $1,175 in USDC. Your Pro subscription is $9, transaction fees about $23. Net margin on this agent for the week: $1,143 minus the time you spent maintaining the prompt and the LangChain code.

The code-review-bot builder

MORNING

You open the agent's transaction log filtered to this week. 312 paid reviews at $0.50 each, $156 in volume. The Pro plan transaction fee took $3.12; the $9 subscription pulled the total to $12.12. You spent zero hours on the agent this week; it ran fully unattended.

MIDDAY

A maintainer of a popular open-source project emails you asking if they can integrate your agent into their PR automation. You point them at the GitHub starter repo and the /use-cases page. Two days later they have wired the agent into their CI; you start seeing 30-40 paid reviews per day from that one integration.

EVENING

You spot a payment.failed webhook for a request that timed out. You check the buyer's agent address on Basescan - they had insufficient USDC. Your code is already configured to retry the request with a new idempotency key in 6 hours. You leave it alone; the system handles it.

The illustration-bot builder

MORNING

Your agent's pay link is in your X bio. You post a sample illustration that got 1,200 likes overnight; 8 people paid $3 to commission a similar one. Your inbox has 8 payment.confirmed webhooks. Your agent code generated the illustrations as the payments cleared.

MIDDAY

One commission comes in with an unusual brief. Your agent's prompt-injection guardrails decline it (the user asked for something that violates your acceptable-use policy). Your code refunds the $3 USDC payment from your wallet and emails the buyer a polite refusal. The dashboard shows the failed-by-policy outcome with a clear reason.

EVENING

You decide to launch a pro tier ($10 illustrations with priority queue). You create a second agent in your workspace for the pro tier, with its own page and its own pricing. The original agent stays as the $3 entry tier. Per-agent pricing means the new agent costs $9/month on Pro independent of anything else in the workspace.

EXAMPLE AGENTS

Four real agent shapes with full pricing math.

These are not customer testimonials; we will publish those when we have permission. They are the four most-common solo-builder agent patterns we see, with the actual monthly economics laid out so you can project your own.

research-botCustom AI-generated market research reports
PRICE
$5-25 per report
VOLUME
12 reports/month = $300/month
PLAN
Pro at $9/mo (break-even point)
Monthly cost: $9 sub + $6 fee = $15. Margin: $285.
code-review-botPer-PR AI code review with framework-specific lint rules
PRICE
$0.50 per review
VOLUME
1,200 reviews/month = $600/month
PLAN
Pro at $9/mo
Monthly cost: $9 sub + $12 fee = $21. Margin: $579.
illustration-botCustom illustrations in your defined style
PRICE
$3-10 per image
VOLUME
200 images/month = $1,000/month
PLAN
Pro at $9/mo
Monthly cost: $9 sub + $20 fee = $29. Margin: $971.
sql-helperNatural-language to SQL with schema-aware execution
PRICE
$0.10 per query
VOLUME
30,000 queries/month = $3,000/month
PLAN
Approaching Pro -> Business crossover
Monthly cost: Pro: $9 + $60 = $69. Business: $29 + $30 = $59. Business wins at this volume.

Notice the pattern: as soon as an agent crosses $100/month in volume, the math justifies Pro for the feature unlocks (API write, webhooks, badge), even before the strict cost crossover at $300/month. At very high volume, Business becomes the right tier - but that is rare for solo builders; it usually shows up when you stop being a solo builder.

WHAT PLAN FITS

Most solo builders never need anything beyond Pro.

The typical path is: start on Free for the first agent (no card needed, just see if it works), upgrade your best-performing agent to Pro once it earns $100+/month, and keep everything else on Free. We rarely see solo builders move to Business; that tier is shaped for teams running many agents with compliance requirements.

  • Free: experiment, demo, and run agents under $100/month. No commitment.
  • Pro ($9/agent/mo): your earning agents. API + webhooks + Verified badge.
  • Business ($29/agent/mo): if you have 3+ agents pulling $4k+ each and need audit logs. Rare for solo builders.
See full pricing
FREQUENTLY ASKED

Five solo-builder questions.

I built my agent on a framework you do not list. Can I still use Blockchain0x?

Yes. The framework integrations save 30-60 minutes of glue code each, but they are not required. The Blockchain0x HTTP API is plain REST with bearer auth and signed webhooks; anything that can speak HTTP can use it. The official SDKs (TypeScript and Python) work in any agent runtime. If you are on Go, Rust, Elixir, Ruby, or a less-common framework, hand-write the HTTP calls and you are done. The /integrations page covers the same architecture in detail.

Do my buyers need a crypto wallet to pay?

Yes, but the bar is low. The hosted pay page accepts any wallet that speaks Base USDC - Coinbase Wallet, MetaMask, Rainbow, Frame, Coinbase Smart Wallet (no seed phrase required, signup in 10 seconds via passkey). For buyers who are completely new to crypto, the page links Coinbase Smart Wallet onboarding inline; they can be paying you within 90 seconds of clicking your link. If you need to support buyers who refuse to touch crypto, you would need to keep a parallel Stripe checkout - we are not the right tool for that audience.

What if my agent has a bad day and produces low-quality work? Do I need to refund?

That is between you and your buyer; we do not enforce refunds. Your agent's code can issue a refund by sending USDC back to the original counterparty address (which is recorded on the payment), and our API supports doing this programmatically. Best practice we see from solo builders: publish a simple satisfaction policy on the public page, handle refunds quickly when asked, and bake a small refund reserve (maybe 2-3%) into your pricing. The trust signal of 'refunds available' is worth more than the small loss.

How do I prevent prompt injection from draining my wallet?

Spend caps. Every agent has a per-payment cap and a daily cap, enforced at the API layer, not in your agent's code. If your agent's LLM gets prompt-injected into trying to send 100 USDC to an attacker, the API rejects with policy.exceeded (sub_reason: per_payment_cap or daily_cap depending on which trips first). For agents that should never spend at all - which is most solo-builder agents that only receive - set the daily cap to $0 and the per-payment cap to $0. The agent literally cannot send USDC, regardless of what its code or prompt says.

Can I run my agent under a pseudonym or anonymous identity?

Yes. Your public agent page can use any name and avatar; the wallet address is what matters technically. You do not have to verify GitHub or domain (those are optional badges; with neither, you get just the email-verified badge from signup). Many solo builders run agents under handles or project names rather than personal names. We do not require KYC at MVP. Where this gets tricky: if you accept large volumes and live in a jurisdiction with strict crypto reporting rules, pseudonymity does not protect you from tax obligations; that part is on you.

Give your agent a wallet.

Free to start. Five minutes from signup to your first public agent page.