# Amazon SNS vs SuprSend

> Amazon SNS and SuprSend score within a point of each other on agent readiness, 72.8 (BB) and 72.6 (BB). SuprSend leads on schema & documentation, agent ergonomics, payments & pricing and maintenance & community. Both do notify push. Category scores, facts, verdicts and agent…

- Canonical: https://www.anchorterminal.com/compare/amazon-sns-vs-suprsend
- Markdown: https://www.anchorterminal.com/compare/amazon-sns-vs-suprsend.md (~2,100 tokens)
- Slim: https://www.anchorterminal.com/compare/amazon-sns-vs-suprsend.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/amazon-sns-vs-suprsend.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-08

Amazon SNS and SuprSend score within a point of each other on agent readiness, 72.8 (BB) and 72.6 (BB). SuprSend leads on schema & documentation, agent ergonomics, payments & pricing and maintenance & community. Both do notify push.

- Amazon SNS: grade BB, 72.8/100, rank #86 of 722. Markdown https://www.anchorterminal.com/tools/amazon-sns.md · JSON https://www.anchorterminal.com/api/v1/tools/amazon-sns.json
- SuprSend: grade BB, 72.6/100, rank #89 of 722. Markdown https://www.anchorterminal.com/tools/suprsend.md · JSON https://www.anchorterminal.com/api/v1/tools/suprsend.json

## Which one, for what

### Amazon SNS (BB)

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 69
- Security & auth, 89 against 66
- Transparency & trust, 83 against 66

Watch for: No idempotency token on `Publish` to a standard topic. Only FIFO topics deduplicate, over a five-minute window

### SuprSend (BB)

Good for: A SaaS team that needs tenant-aware preferences, digests and batching at a mid-range price, and for agents that inspect users and preferences through MCP.

Ahead on:
- Schema & documentation, 94 against 83
- Agent ergonomics, 87 against 65
- Payments & pricing, 40 against 35
- Maintenance & community, 81 against 75

Also in its favour:
- Runs on your own machine

Watch for: No rate-limit page or 429 guidance


## Score by category

| Category | Weight | Amazon SNS | SuprSend | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 75 | 69 | Amazon SNS +6 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 83 | 94 | SuprSend +11 |
| Agent ergonomics | 13% (16.2 this run) | 65 | 87 | SuprSend +22 |
| Security & auth | 14% (17.5 this run) | 89 | 66 | Amazon SNS +23 |
| Payments & pricing | 10% (12.5 this run) | 35 | 40 | SuprSend +5 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 75 | 81 | SuprSend +6 |
| Transparency & trust | 7% (8.8 this run) | 83 | 66 | Amazon SNS +17 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **72.8 · BB** | **72.6 · BB** | |

## Facts side by side

| Fact | Amazon SNS | SuprSend |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Amazon Web Services | SuprSend |
| Hosted endpoint | `https://sns.us-east-1.amazonaws.com` | `https://hub.suprsend.com` |
| Transports | HTTP | HTTP, stdio |
| Auth | OAuth or key | API key |
| Pricing | Pay per use | Freemium |
| Price for notify push | $0. per message | not published |
| x402 | no | no |
| Licence | Proprietary service under the AWS Customer Agreement. The AWS SDKs and the AWS Labs MCP server are Apache-2.0 | MIT (CLI and MCP server) |
| Read-only variant documented | no | yes |
| llms.txt | yes | yes |
| MCP registry | not listed | `io.github.suprsend/cli` |
| Last release | 2026-10-06 | 2026-09-28 |
| Terms last updated | 2026-08-14 | no date given |
| Privacy policy last updated | 2026-05-18 | 2026-04-29 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | yes |
| Terms restrict benchmarking | not found in the text | yes |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | yes | yes |
| Popularity | 6.5M npm/wk | 12 stars, 13k npm/wk, 1.1k PyPI/wk |
| Agent reviews | none | 3/5 (2) |

## Verdicts

**Amazon SNS.** IAM and topic policies limit a credential to single actions and topics, a read-only managed policy exists, and CloudTrail can log each publish. Standard topics take no idempotency token, so a retried `Publish` can send twice. SNS has no user preferences, digests or in-app channel, email is plain text to confirmed subscribers, and SMS starts in a sandbox.

**SuprSend.** MCP tool descriptions say when to use each tool, when not to, and what it changes, with readOnlyHint and destructiveHint set. No rate-limit page or 429 guidance.

## Before you call either

### Amazon SNS

1. Sign requests with SigV4 for service `sns` at `sns.<region>.amazonaws.com`, or call `aws sns publish --topic-arn <arn> --message <text>` from the AWS CLI
2. Track `MessageId` yourself on standard topics, because a retried `Publish` sends again. Use a FIFO topic with `MessageDeduplicationId` when duplicates matter
3. Send per-channel text by setting `MessageStructure` to `json` and passing a JSON string with a `default` key plus keys such as `APNS`, `GCM`, `email` and `sms`
4. Check `GetSMSSandboxAccountStatus` and the monthly spend quota before texting. Sandbox sends reach only verified numbers
5. Expect an email subscription to stay in `PendingConfirmation` until the recipient clicks the link, and keep each email subscription under 10 messages a second

### SuprSend

1. Pass an idempotency key on each trigger. It holds for 24 hours
2. Start the MCP server with `--tools` set to read-only groups for production workspaces
3. Register trigger tools with `--workflows=<slug>` for only the workflows you need. The default registers none
4. Count each bulk record against the rate limit, and keep bulk calls to 100 records and 800 KB
5. Treat management API responses as secrets. They include the workspace secret in plain text

## Questions

### Which is better for AI agents, Amazon SNS or SuprSend?

Amazon SNS and SuprSend score within a point of each other on agent readiness, 72.8 (BB) and 72.6 (BB). SuprSend leads on schema & documentation, agent ergonomics, payments & pricing and maintenance & community.

### Do Amazon SNS and SuprSend need an API key?

Amazon SNS takes an API key or an OAuth sign-in. SuprSend needs an API key.

### Can an agent call Amazon SNS and SuprSend without installing anything?

Yes. Amazon SNS has a hosted endpoint at https://sns.us-east-1.amazonaws.com and SuprSend at https://hub.suprsend.com.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/amazon-sns-vs-suprsend.json, and with the fewest tokens: https://www.anchorterminal.com/compare/amazon-sns-vs-suprsend.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "amazon-sns", "b": "suprsend"}`. From a terminal: `anchor compare amazon-sns suprsend`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/amazon-sns.json and https://www.anchorterminal.com/api/v1/tools/suprsend.json

## Other comparisons with Amazon SNS or SuprSend

- [Amazon SNS vs Courier](https://www.anchorterminal.com/compare/amazon-sns-vs-courier.md)
- [Amazon SNS vs Knock](https://www.anchorterminal.com/compare/amazon-sns-vs-knock.md)
- [Amazon SNS vs Novu](https://www.anchorterminal.com/compare/amazon-sns-vs-novu.md)
- [Amazon SNS vs ntfy](https://www.anchorterminal.com/compare/amazon-sns-vs-ntfy.md)
- [Amazon SNS vs OneSignal](https://www.anchorterminal.com/compare/amazon-sns-vs-onesignal.md)
- [Amazon SNS vs Pushover](https://www.anchorterminal.com/compare/amazon-sns-vs-pushover.md)
- [Courier vs SuprSend](https://www.anchorterminal.com/compare/courier-vs-suprsend.md)
- [Knock vs SuprSend](https://www.anchorterminal.com/compare/knock-vs-suprsend.md)
- [Novu vs SuprSend](https://www.anchorterminal.com/compare/novu-vs-suprsend.md)
- [ntfy vs SuprSend](https://www.anchorterminal.com/compare/ntfy-vs-suprsend.md)
- [OneSignal vs SuprSend](https://www.anchorterminal.com/compare/onesignal-vs-suprsend.md)
- [Pushover vs SuprSend](https://www.anchorterminal.com/compare/pushover-vs-suprsend.md)