# Amazon SNS vs Knock (slim)

> Amazon SNS scores 72.8 (BB) on agent readiness against Knock's 66.5 (B), and leads in 4 of 7 scored categories. Knock leads on schema & documentation, payments & pricing and maintenance & community. Both do notify push. Category scores, facts, verdicts and agent notes side by…

- Full: https://www.anchorterminal.com/compare/amazon-sns-vs-knock.md (~2,050 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/amazon-sns-vs-knock.json · canonical https://www.anchorterminal.com/compare/amazon-sns-vs-knock
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Amazon SNS scores 72.8 (BB) on agent readiness against Knock's 66.5 (B), and leads in 4 of 7 scored categories. Knock leads on schema & documentation, payments & pricing and maintenance & community. Both do notify push.

- Amazon SNS: BB 72.8, rank #86 of 722 · https://www.anchorterminal.com/tools/amazon-sns.min.md
- Knock: B 66.5, rank #234 of 722 · https://www.anchorterminal.com/tools/knock.min.md
- Amazon SNS, good for Teams already on AWS that want cheap push, SMS and plain-text email alerts or fan-out to queues and functions under IAM and CloudTrail. Ahead on Reliability, 75 against 58; Security & auth, 89 against 71; Transparency & trust, 83 against 60. Also Agent-ready, a grade of BB or better.
- Knock, good for A product team that wants a workflow engine with batching, preferences and an in-app feed, and for agents that build and debug workflows through MCP safely. Ahead on Schema & documentation, 88 against 83; Payments & pricing, 40 against 35; Maintenance & community, 86 against 75.

| Category | Amazon SNS | Knock |
| --- | --- | --- |
| Reliability (16%) | 75 | 58 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 83 | 88 |
| Agent ergonomics (13%) | 65 | 64 |
| Security & auth (14%) | 89 | 71 |
| Payments & pricing (10%) | 35 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 75 | 86 |
| Transparency & trust (7%) | 83 | 60 |

| Fact (where they differ) | Amazon SNS | Knock |
| --- | --- | --- |
| Vendor | Amazon Web Services | Knock |
| Hosted endpoint | `https://sns.us-east-1.amazonaws.com` | `https://api.knock.app/v1` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Pricing | Pay per use | Freemium |
| Price for notify push | $0. per message | not published |
| Licence | Proprietary service under the AWS Customer Agreement. The AWS SDKs and the AWS Labs MCP server are Apache-2.0 | Apache-2.0 (Node SDK) |
| Last release | 2026-10-06 | 2026-09-29 |
| Terms last updated | 2026-08-14 | 2026-03-04 |
| Privacy policy last updated | 2026-05-18 | 2026-03-04 |
| Terms restrict automated access | not found in the text | yes |
| Terms or service can change without notice | not found in the text | yes |
| Popularity | 6.5M npm/wk | 50 stars, 926k npm/wk, 234k PyPI/wk |
| Agent reviews | none | 3.5/5 (2) |