Pricing
Pricing for reliable agent callbacks.
Start free, no card. One flat fee per tier — no per-event metering, no surprise bills. Hook & Sense are opening to early access now.
Switch to annual and double your retention window — no extra charge.
Catch
Wire up agent callbacks and try it
Free forever
- wait_for_callback — await results, no polling
- 3 callback endpoints
- 300 callbacks / day
- 14-day retention
- Permanent URL — never expires
- MCP server + full tool surface
Hook
Reliable callbacks for your agents
Per month
- Everything in Free, plus
- 15 callback endpoints
- 5,000 callbacks / day
- Signature verification (timing-safe HMAC)
- Automatic retries + dead-letterSoon
- 30-day retention
- Up to 3 team members
- Custom URLs
Sense
High volume, teams, longer retention
Per month
- Everything in Hook, plus
- Unlimited callback endpoints
- 50,000 callbacks / day
- 90-day retention
- Up to 10 team members
- Custom domains
- Uptime SLA & priority supportSoon
Need SSO, audit logs, or custom limits? Get in touch →
Enterprise — from $299/mo
When compliance and SSO are non-negotiable.
For teams that need higher limits, more seats, and compliance features like SSO, audit logs, and an SLA. These are provisioned on request — tell us what you need and we'll scope a plan with you.
- 365-day retention
- 100,000 requests / day
- 25 team seats
- SSO / SAML — provisioned on request
- Audit log access — on request
- Static source IP for replays
- Uptime SLA & priority support
- Custom data residency — on request
Predictable pricing
Why we don't charge for overage.
Webhooks shouldn't come with a meter. Pick a plan, know what you'll pay — every month.
No per-event billing
One flat monthly fee. 50,000 requests/day on Sense — no metered overage, no end-of-month invoice spikes when a buggy producer floods your endpoint.
No surprise invoices
Hit your plan limit and we return 429 until tomorrow. Your captured data stays safe. Zero auto-charges, ever.
No per-seat lock-in
Team seats are included — up to 10 on Sense. No per-user upgrade pressure like Webhook.site or Hookdeck.
Permanent URLs, even on free
Your endpoint slug never expires. Webhook.site abandons free URLs; we keep yours forever. Only request bodies age out per retention.
Receive callbacks from
Full feature comparison
| Feature | Catch $0 | Most Popular Hook $29 /mo | Sense $99 /mo |
|---|---|---|---|
| Usage | |||
| Endpoints | 3 | 15 | Unlimited |
| Callbacks / day | 300 | 5,000 | 50,000 |
| Retention — monthly billing | 14 days | 30 days | 90 days |
| Retention — annual billing | 60 days | 180 days | |
| Replays | 5 / mo | Unlimited | Unlimited |
| Analytics window | 1 day | 7 days | 30 days |
| Payload size | 1 MB | 10 MB | 10 MB |
| Collaboration | |||
| Team members | 3 | 10 | |
| Custom URLs | |||
| Custom responses | |||
| HMAC verification | |||
| Data export | |||
| Custom domains | |||
| IP allowlisting | |||
| Alerts & monitoring | |||
| Health dashboard | Soon | ||
| Email alerts | Soon | Soon | |
| Slack / Discord | Soon | ||
| Advanced | |||
| Auto retry | Soon | ||
| Auto diagnosis | Soon | ||
| Priority support | |||
Why HookSense
More for your money.
Webhook infra wasn't built for agents. HookSense is the only MCP-native option — and a flat fee, never per-event. Here's how it stacks up.
Hook — $29/mo
Hookdeck
$39/mo + per-event
MCP-native, flat fee, no metering
Hookdeck is great receiving infra — but it's not built for agents and meters per event after the base. Hook gives your agent wait_for_callback over MCP at a flat $29, no per-event surprises.
Roll your own
ngrok + polling
No polling loops, no glue code
The DIY path is a throwaway tunnel plus a polling loop that burns the agent's context and budget. Hook replaces both: one create_callback_endpoint, one wait_for_callback, signature-verified.
Sense — $99/mo
Svix
from $490/mo
Agent-side callbacks, a fraction of the price
Svix is best-in-class for platforms sending webhooks to customers — a different job, and Pro-tier starts at $490. Sense is the agent-side receiver: unlimited endpoints, 10 seats, 90-day retention at $99.
Convoy (self-hosted)
$99/mo cloud
No infra to run, MCP-native
Convoy is a solid open-source gateway, but you run it (or pay $99 for cloud) and wire it into your agent yourself. Sense is managed and speaks MCP out of the box.
FAQ
Common questions.
Hook and Sense are opening to an early-access list while we finish hardening reliability features (retries, dead-letter). Click "Request access" to join — we'll reach out personally and set you up. The Catch plan is live today, no waiting, no card.
The core agent flow: create a callback endpoint, wait_for_callback (await results instead of polling), and the full MCP tool surface — plus 3 endpoints, 300 callbacks/day, and 14-day retention. Enough to wire real agent callbacks end to end.
New callbacks are rejected with a 429 until the limit resets the next day — your existing data stays safe. There are no metered overage charges and no per-event billing: you'll never get a surprise bill for a busy day. Upgrade for higher limits or wait for the counter to roll over at midnight UTC.
Svix and Hookdeck are infrastructure for sending and receiving webhooks between services. HookSense is built for AI agents: the agent itself creates a callback URL and awaits the result over MCP with wait_for_callback — no polling, no glue code. It's the only MCP-native option in this space.
Agent workloads are bursty and unpredictable. Per-event metering (like Hookdeck's overage) punishes a busy day. HookSense is one flat monthly fee per tier — pick a plan, know what you'll pay.
Hook includes up to 3 team members and Sense includes up to 10. For larger teams, SSO, audit logs, an uptime SLA, or custom limits, reach out at [email protected] and we'll scope an Enterprise plan with you.