# Hook0 vs Upstash QStash (slim)

> Upstash QStash scores 72.3 (BB) on agent readiness against Hook0's 64.6 (B), and leads in 2 of 7 scored categories. Hook0 leads on maintenance & community. Both do events webhooks send. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/hook0-vs-upstash-qstash.md (~2,150 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/hook0-vs-upstash-qstash.json · canonical https://www.anchorterminal.com/compare/hook0-vs-upstash-qstash
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Upstash QStash scores 72.3 (BB) on agent readiness against Hook0's 64.6 (B), and leads in 2 of 7 scored categories. Hook0 leads on maintenance & community. Both do events webhooks send.

- Hook0: B 64.6, rank #313 of 842 · https://www.anchorterminal.com/tools/hook0.min.md
- Upstash QStash: BB 72.3, rank #105 of 842 · https://www.anchorterminal.com/tools/upstash-qstash.min.md
- Hook0, good for 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. Ahead on Maintenance & community, 87 against 77. Also Runs on your own machine.
- Upstash QStash, good for Agents and serverless apps that need a delayed, retried or scheduled HTTP call without running a queue. Ahead on Reliability, 83 against 70; Agent ergonomics, 83 against 65. Also Agent-ready, a grade of BB or better; A hosted endpoint, with nothing to install; No incidents deducted, where Hook0 loses 4 points for them.

| Category | Hook0 | Upstash QStash |
| --- | --- | --- |
| Reliability (16%) | 70 | 83 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 79 | 78 |
| Agent ergonomics (13%) | 65 | 83 |
| Security & auth (14%) | 64 | 61 |
| Payments & pricing (10%) | 40 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 87 | 77 |
| Transparency & trust (7%) | 84 | 81 |

| Fact (where they differ) | Hook0 | Upstash QStash |
| --- | --- | --- |
| Vendor | FGRibreau SARL | Upstash |
| Hosted endpoint | no (local only) | `https://qstash.upstash.io/v2` |
| Transports | HTTP, stdio | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| Licence | SSPL-1.0 for the server (source available, not an OSI licence). The SDKs and the `hook0-mcp` server are MIT per crates.io and npm. Hook0 Cloud is a hosted service under Hook0's terms of service | Proprietary hosted service under Upstash's terms of service. The TypeScript and Python SDKs and the MCP server are MIT |
| Tools exposed | 23 | 10 |
| MCP registry | not listed | `io.github.upstash/mcp-server` |
| Last release | 2026-09-21 | 2026-09-29 |
| Terms last updated | 2026-06-27 |  |
| Privacy policy last updated | 2026-09-09 |  |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | yes |  |
| Terms restrict benchmarking | not found in the text |  |
| Terms or service can change without notice | yes |  |
| Arbitration or class-action waiver | not found in the text |  |
| Popularity | 1.5k stars, 507 npm/wk, 11 PyPI/wk | 269 stars, 816k npm/wk, 91k PyPI/wk |