# Svix vs Upstash QStash (slim)

> Svix scores 74 (BB) on agent readiness against Upstash QStash's 72.3 (BB), and leads in 5 of 7 scored categories. Both do events webhooks send. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/svix-vs-upstash-qstash.md (~2,000 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/svix-vs-upstash-qstash.json · canonical https://www.anchorterminal.com/compare/svix-vs-upstash-qstash
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Svix scores 74 (BB) on agent readiness against Upstash QStash's 72.3 (BB), and leads in 5 of 7 scored categories. Both do events webhooks send.

- Svix: BB 74, rank #66 of 629 · https://www.anchorterminal.com/tools/svix.min.md
- Upstash QStash: BB 72.3, rank #90 of 629 · https://www.anchorterminal.com/tools/upstash-qstash.min.md
- Svix, good for 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. Ahead on Schema & documentation, 87 against 78; Maintenance & community, 88 against 77; Transparency & trust, 86 against 81. Also Open source.
- Upstash QStash, good for Agents and serverless apps that need a delayed, retried or scheduled HTTP call without running a queue.

| Category | Svix | Upstash QStash |
| --- | --- | --- |
| Reliability (16%) | 85 | 83 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 87 | 78 |
| Agent ergonomics (13%) | 86 | 83 |
| Security & auth (14%) | 61 | 61 |
| Payments & pricing (10%) | 40 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 88 | 77 |
| Transparency & trust (7%) | 86 | 81 |

| Fact (where they differ) | Svix | Upstash QStash |
| --- | --- | --- |
| Vendor | Svix Inc. | Upstash |
| Hosted endpoint | `https://api.svix.com` | `https://qstash.upstash.io/v2` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| Licence | MIT for the server, SDKs, CLI and Bridge in svix/svix-webhooks. The hosted service runs under Svix's terms of service and has functions the open-source server lacks | Proprietary hosted service under Upstash's terms of service. The TypeScript and Python SDKs and the MCP server are MIT |
| Tools exposed | none | 10 |
| Read-only variant documented | no | yes |
| MCP registry | not listed | `io.github.upstash/mcp-server` |
| Last release | 2026-10-06 | 2026-09-29 |
| Terms last updated | 2024-01-10 |  |
| Privacy policy last updated | 2022-11-10 |  |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | yes |  |
| Terms or service can change without notice | not found in the text |  |
| Arbitration or class-action waiver | yes |  |
| Popularity | 3.4k stars, 8.8M npm/wk, 2.4M PyPI/wk | 269 stars, 816k npm/wk, 91k PyPI/wk |