# Best webhook and event delivery infrastructure for AI agents (slim)

> Hookdeck (BB), Ably (BB) and Svix (BB) lead the 11 ranked webhook and event delivery infrastructure. Picks by need, strengths, weaknesses and prices from the Anchor benchmark.

- Full: https://www.anchorterminal.com/best/webhooks/index.md (~6,650 tokens) · this version ~1,530 tokens · JSON https://www.anchorterminal.com/best/webhooks/index.json · canonical https://www.anchorterminal.com/best/webhooks/
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

The 10 highest-scoring of 11 webhook and event delivery infrastructure on the Anchor benchmark, with a pick for each need and where each one falls short. Scores come from public evidence, re-checked as vendors change.

- Ranked: 11 · agent-ready (BB or better): 5 · accept x402: 0 · hosted endpoints: 8
- Full ranked table: https://www.anchorterminal.com/categories/webhooks.md
- Head-to-head comparisons: https://www.anchorterminal.com/compare/webhooks/index.md (48)
- Methodology: https://www.anchorterminal.com/benchmark/index.md

## The shortlist

| # | Tool | Grade | Score | Best for | Price | Where |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | [Hookdeck](https://www.anchorterminal.com/tools/hookdeck.md) | BB | 76.9 | Teams that receive third-party webhooks and want queueing, retries, replay and an agent that can inspect failures or pause a connection. | $39 / mo | hosted and local |
| 2 | [Ably](https://www.anchorterminal.com/tools/ably.md) | BB | 75 | Fan-out of live messages to many connected clients, presence and resumable streams, with webhooks and queues as ways to get channel events to a backend. | $29 / mo | hosted |
| 3 | [Svix](https://www.anchorterminal.com/tools/svix.md) | BB | 74 | A product that must send webhooks to its own customers with signing, retries, replay and a consumer portal, and an agent that builds or operates that integration. | $20 / mo | hosted |
| 4 | [Amazon EventBridge](https://www.anchorterminal.com/tools/amazon-eventbridge.md) | BB | 73.7 | Teams already on AWS that want events routed between AWS services, their own code and outside HTTPS endpoints under IAM, with retention and replay on the bus. | $0.18 / GB | hosted |
| 5 | [Upstash QStash](https://www.anchorterminal.com/tools/upstash-qstash.md) | BB | 72.3 | Agents and serverless apps that need a delayed, retried or scheduled HTTP call without running a queue. | $0.05 / GB | hosted |
| 6 | [PubNub](https://www.anchorterminal.com/tools/pubnub.md) | B | 68.1 | Live fan-out to many connected clients with presence and history, and for an agent that manages a PubNub account through MCP. | $98 / mo | hosted and local |
| 7 | [Hook0](https://www.anchorterminal.com/tools/hook0.md) | B | 64.6 | A product that has to send signed webhooks to its own customers' endpoints with retries, replay and a delivery log, and that wants EU hosting or the option to self-host the same code. | Freemium | local |
| 8 | [Centrifugo](https://www.anchorterminal.com/tools/centrifugo.md) | B | 63.1 | A team that wants to run its own realtime channel server and publish to browsers and apps from any backend, with history, recovery and presence. | Free · OSS | local |
| 9 | [Convoy](https://www.anchorterminal.com/tools/convoy.md) | B | 62.2 | A product that has to send signed webhooks to its customers' endpoints with retries, replay and a delivery log, or receive third-party webhooks and route them inward. | $99 / mo | local |
| 10 | [Webhook Relay](https://www.anchorterminal.com/tools/webhook-relay.md) | C | 57.8 | Teams that need third-party webhooks to reach localhost, on-premises CI or private Kubernetes services, with an agent that can configure buckets and inspect failed deliveries over MCP. | $8.99 / mo | hosted |

## Picks by need

- Highest score overall: [Hookdeck](https://www.anchorterminal.com/tools/hookdeck.md), BB, 76.9/100 on the benchmark. Also [Ably](https://www.anchorterminal.com/tools/ably.md), BB, 75/100.
- Reliability: [Convoy](https://www.anchorterminal.com/tools/convoy.md), 92/100 on reliability, against 90 for the overall leader.
- Agent ergonomics: [Ably](https://www.anchorterminal.com/tools/ably.md), 87/100 on agent ergonomics, against 81 for the overall leader.
- Security & auth: [Amazon EventBridge](https://www.anchorterminal.com/tools/amazon-eventbridge.md), 88/100 on security & auth, against 67 for the overall leader.
- Maintenance & community: [Svix](https://www.anchorterminal.com/tools/svix.md), 88/100 on maintenance & community, against 74 for the overall leader.
- Transparency & trust: [Amazon EventBridge](https://www.anchorterminal.com/tools/amazon-eventbridge.md), 87/100 on transparency & trust, against 76 for the overall leader.
- A hosted MCP endpoint: [Upstash QStash](https://www.anchorterminal.com/tools/upstash-qstash.md), remote MCP server, nothing to install.
- Self-hosting under an open licence: [Svix](https://www.anchorterminal.com/tools/svix.md), self-hosted, MIT for the server licence. Also [Hook0](https://www.anchorterminal.com/tools/hook0.md), self-hosted, SSPL-1 licence.

## How to choose

- Retry schedule and limits: Check the retry schedule, attempt limit and when an event is marked failed, since a short limit can drop events a flaky endpoint would accept later.
- Duplicates and event order: Check whether delivery is at least once or at most once, and whether order holds, so the agent knows if it must handle repeats itself.
- Signature checks and replay: Check how signatures are verified and whether a failed event can be replayed from the delivery log, so an agent can trust what it receives.
- Billing for retries: Check whether retries and failed attempts are billed, since a flaky endpoint can multiply the sends an agent pays for.

- How the benchmark tests this category: The same thousand events sent through each listing to an endpoint that fails one request in ten. We check retries and their schedule, ordering, duplicate delivery, signature verification, replay of a failed event and the delivery log. In this run listings are graded from public evidence against the published checklist.

Each listing's verdict, strengths and weaknesses: https://www.anchorterminal.com/best/webhooks/index.md