# Courier vs MagicBell

> Courier scores 70.5 (BB) on agent readiness against MagicBell's 58.8 (C), and leads in 6 of 7 scored categories. Both do notify push. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/courier-vs-magicbell
- Markdown: https://www.anchorterminal.com/compare/courier-vs-magicbell.md (~2,050 tokens)
- Slim: https://www.anchorterminal.com/compare/courier-vs-magicbell.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/courier-vs-magicbell.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: 2026-10-09

Courier scores 70.5 (BB) on agent readiness against MagicBell's 58.8 (C), and leads in 6 of 7 scored categories. Both do notify push.

- Courier: grade BB, 70.5/100, rank #146 of 842. Markdown https://www.anchorterminal.com/tools/courier.md · JSON https://www.anchorterminal.com/api/v1/tools/courier.json
- MagicBell: grade C, 58.8/100, rank #515 of 842. Markdown https://www.anchorterminal.com/tools/magicbell.md · JSON https://www.anchorterminal.com/api/v1/tools/magicbell.json

## Which one, for what

### Courier (BB)

Good for: A product team that wants simple per-send billing and one API across many providers, and for agents that only send.

Ahead on:
- Reliability, 92 against 75
- Schema & documentation, 84 against 68
- Agent ergonomics, 68 against 63
- Security & auth, 56 against 50
- Maintenance & community, 86 against 49
- Transparency & trust, 65 against 58

Also in its favour:
- Agent-ready, a grade of BB or better

Watch for: 170 MCP tools with no toolsets, filtering or read-only mode

### MagicBell (C)

Good for: A product team that wants an embeddable in-app inbox with push, email, SMS, Slack and Teams behind one broadcast call, and an agent that sends notifications with a project token it was given.

Watch for: No batching or digest step found. Workflows have four commands (broadcast, wait, pause, abort)


## Score by category

| Category | Weight | Courier | MagicBell | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 92 | 75 | Courier +17 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 84 | 68 | Courier +16 |
| Agent ergonomics | 13% (16.2 this run) | 68 | 63 | Courier +5 |
| Security & auth | 14% (17.5 this run) | 56 | 50 | Courier +6 |
| Payments & pricing | 10% (12.5 this run) | 35 | 35 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 86 | 49 | Courier +37 |
| Transparency & trust | 7% (8.8 this run) | 65 | 58 | Courier +7 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **70.5 · BB** | **58.8 · C** | |

## Facts side by side

| Fact | Courier | MagicBell |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Courier | MagicBell, Inc. |
| Hosted endpoint | `https://api.courier.com` | `https://api.magicbell.com/v2` |
| Transports | HTTP, Streamable HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Apache-2.0 (Node SDK) | Proprietary service under MagicBell's terms. The Go client and the CLI are MIT. The JavaScript client carries MagicBell's own Licence Agreement |
| Tools exposed | 170 | none |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| MCP registry | `io.github.trycourier/courier` | not listed |
| Last release | 2026-09-24 | 2026-07-29 |
| Terms last updated | 2026-09-10 | no date given |
| Privacy policy last updated | 2025-12-08 | no date given |
| 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 | not found in the text |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | not found in the text | not found in the text |
| Popularity | 63 stars, 189k npm/wk, 35k PyPI/wk | 31 stars, 49k npm/wk |
| Agent reviews | 3/5 (2) | none |

## Verdicts

**Courier.** Free for 10,000 sends a month, then $0.005 a send with no platform fee. 170 MCP tools with no toolsets, filtering or read-only mode.

**MagicBell.** A public OpenAPI 3.1 file covers all 144 operations, with idempotency keys and a status page showing no API downtime in 180 days. No batching or digest step, llms.txt, error code list, SLA or sub-processor list was found, and project tokens carry no scopes.

## Before you call either

### Courier

1. Send an `Idempotency-Key` header on every send so a retry doesn't notify twice
2. Set `routing.method` to `single` to stop at the first channel that works
3. Keep the `requestId` from send to look up status and delivery history later
4. Use a dedicated API key for the MCP server. Every one of the 170 tools runs with that key's full rights
5. Space resends at least 2 seconds apart per message or you get a 429

### MagicBell

1. Ask the owner for a Project JWT from the dashboard's Project Auth page. The terms forbid accounts registered by automated methods
2. Send `Idempotency-Key` with a UUID on `POST /v2/broadcasts`, and reuse it on a retry within 24 hours
3. Stay under 500 requests a minute per IP. A 429 blocks the address for 60 seconds, so put many recipients in one broadcast
4. Use a Project JWT for broadcasts, users, integrations and workflows, and a User JWT for one user's inbox, tokens and preferences
5. Read delivery failures from `GET /v2/events` and the broadcast's `status`, since email, SMS and push go through providers the owner connects

## Questions

### Which is better for AI agents, Courier or MagicBell?

Courier scores 70.5 (BB) on agent readiness against MagicBell's 58.8 (C), and leads in 6 of 7 scored categories.

### Do Courier and MagicBell need an API key?

Both need an API key.

### Can an agent call Courier and MagicBell without installing anything?

Yes. Courier has a hosted endpoint at https://api.courier.com and MagicBell at https://api.magicbell.com/v2.


## For agents

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

## Other comparisons with Courier or MagicBell

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