Start free. Upgrade when you need more. No hidden fees, no surprise bills — just predictable pricing that scales with your agents.
For solo builders and side projects
For early-stage startups shipping AI agents
Billed annually: $40.83/mo
14-day free trial · No card to start
For growing teams with production workloads
Billed annually: $165.83/mo
14-day free trial · No card to start
For scale-ups needing governance & scale
Billed annually: $499.17/mo
14-day free trial · No card to start
For platforms, facilitators & regulated companies
Adjust the sliders to see which plan fits your usage and what overage would cost.
An event is any payment lifecycle hook received by Harpd: before-payment, after-payment, before-settlement, or after-settlement. A single x402 payment typically generates 2–4 events. MPP sessions and AP2 mandates generate events per step.
On Free: new events are rejected (429) until the month resets. On paid plans: events continue at the metered overage rate ($1/1K for Starter, $0.50/1K for Pro, $0.30/1K for Team). You'll get email alerts at 80%, 100%, and 120% of quota.
Yes. Upgrades take effect immediately with prorated billing. Downgrades take effect at the next billing cycle. No penalties, no lock-in.
Start any paid plan free for 14 days — no credit card required. You get full access to all plan features. After 14 days, choose to upgrade or downgrade to Free. Your data is preserved either way.
When you list an endpoint on the Marketplace and buyers use it, Harpd takes 10% of the gross transaction volume. Payouts happen weekly via Stripe Connect. Featured slots ($200/mo) give you priority placement in search results.
Yes! We offer 50% off Pro and Team plans for registered nonprofits, educational institutions, and open-source projects. Contact us with your organization details.
Credit/debit cards via Stripe. Enterprise customers (annual $10K+) can pay via wire transfer with net-30 terms. All prices in USD.
Monthly plans: cancel anytime. Annual plans: 17% discount, billed yearly, cancel anytime for a prorated refund. Enterprise: custom terms (typically 1-3 years).
Everything you need to know to pick the right plan.
| Feature | Free | Starter | Pro | Team | Enterprise |
|---|---|---|---|---|---|
| Monthly Price | Custom/mo | $49/mo | $199/mo | $599/mo | Custom/mo |
| Annual Price | Custom/mo (billed yearly) | $40.83/mo (billed yearly) | $165.83/mo (billed yearly) | $499.17/mo (billed yearly) | Custom/mo (billed yearly) |
| Quotas & Limits | |||||
| Events/Month | 10,000 | 100,000 | 1,000,000 | 10,000,000 | Unlimited |
| Collectors | 1 | 5 | Unlimited | Unlimited | Unlimited |
| Data Retention | 7 days | 30 days | 90 days | 365 days | -1 days |
| Overage Rate | N/A (blocked) | $1/1K | $0.5/1K | $0.3/1K | Included |
| Protocols | |||||
| x402 | ✓ | ✓ | ✓ | ✓ | ✓ |
| MPP | ✗ | ✓ | ✓ | ✓ | ✓ |
| AP2 | ✗ | ✗ | ✓ | ✓ | ✓ |
| Core Features | |||||
| Real-time Dashboard | ✓ | ✓ | ✓ | ✓ | ✓ |
| On-chain Reconciliation | Manual only | Auto + Webhooks | Auto + Webhooks | Auto + Webhooks | Auto + Webhooks |
| Budget Engine | ✗ | ✓ | ✓ | ✓ | ✓ |
| Email Alerts | ✗ | ✓ | ✓ | ✓ | ✓ |
| Approval Workflows | ✗ | ✗ | ✓ | ✓ | ✓ |
| Session/Mandate Reservations | ✗ | ✗ | ✓ | ✓ | ✓ |
| Marketplace | |||||
| Browse & Discover | ✓ | ✓ | ✓ | ✓ | ✓ |
| List & Sell Endpoints | ✗ | ✓ | ✓ | ✓ | ✓ |
| Featured Slots Included | 0 | 1 | 5 | 10 | Unlimited |
| Revenue Share | N/A | 10% | 10% | 10% | 10% |
| Compliance & Enterprise | |||||
| VAT Calculation | ✗ | ✗ | ✓ | ✓ | ✓ |
| Invoice Generation | ✗ | ✗ | ✓ | ✓ | ✓ |
| Expense Categories | ✗ | ✗ | ✓ | ✓ | ✓ |
| Audit Export (SOC2) | ✗ | ✗ | ✓ | ✓ | ✓ |
| SSO (SAML/OIDC) | ✗ | ✗ | ✗ | ✓ | ✓ |
| RBAC | ✗ | ✗ | ✗ | ✓ | ✓ |
| White-label / OEM | ✗ | ✗ | ✗ | ✗ | ✓ |
| Custom SLA | Best effort | Best effort | 99.9% | 99.95% | ✓ |
| Support | |||||
| Community | ✓ | ✓ | ✓ | ✓ | ✓ |
| ✗ | 48h | 48h | 24h | 12h | |
| Dedicated Slack | ✗ | ✗ | ✗ | ✓ | ✓ |
| Named CSM | ✗ | ✗ | ✗ | ✗ | ✓ |
10,000 events/month free forever. Upgrade when you're ready. No credit card required.