Registry › Compare › Hatchet vs Sim

Hatchet vs Sim

Hatchet leads on trust: 67.7/100 (Grade B) against 64.5/100 (Grade C), a 3.2-point gap. Hatchet leads on supply-chain integrity and transparency; Sim leads on adoption.

B Hatchet 67.7

🪓 An orchestration engine for background tasks, AI agents, and durable workflows

hatchet-dev/hatchet · #430 overall · #9 Workflow Platforms · coverage C (2/5)

Choose Hatchet if supply-chain integrity and transparency matter most.

+1.6Safety / Integrity: 100% of recent commits signed, against 94%
+0.9Transparency: OSSF Scorecard 6.5 against 5.4

C Sim 64.5

Sim is the collaborative workspace to build, deploy, and monitor AI agents and workflows. Used by 100,000+ builders.

simstudioai/sim · #552 overall · #11 Workflow Platforms · coverage C (2/5)

Choose Sim if adoption matters most.

+1.3Adoption: 30.1k GitHub stars against 8.3k

Where they differ

13.1

Safety / IntegrityHatchet +1.6

11.5

14.0

TransparencyHatchet +0.9

13.1

19.9

MaintenanceSim +0.1

20.0

9.4

AdoptionSim +1.3

10.7

+0.5

Runtime calibrationHatchet +2.1

-1.6

1 dimension identical: Identity 10.8 · Full evidence table

An independent, evidence-based trust comparison of Hatchet and Sim, two Workflow Platforms projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.

Full evidence

Signal	Hatchethatchet-dev/hatchet	Simsimstudioai/sim
HVTrust score	67.7	64.5
Evidence grade	B	C
Coverage grade	C	C
Overall rank	#430	#552
Rank in Workflow Platforms	#9	#11
GitHub stars	8.3k	30.1k
Last updated	1d ago	today
Build provenance	No	No
OSSF Scorecard	6.5 / 10	5.4 / 10
License	MIT	Apache-2.0
Downloads	—	—
Trust dimensions (points earned)
Safety / integrity / 25	13.1	11.5
Identity & provenance / 18	10.8	10.8
Transparency / 17	14.0	13.1
Maintenance / 20	19.9	20.0
Adoption / 20	9.4	10.7
Runtime capability surface (full matrix)
MCP server	Implemented	Implemented
External providers	4 — Amazon Bedrock, Anthropic, OpenAI, …	7 — Anthropic, Browserbase, E2B, …
Requires API keys	No	No
Plugin surface	—	plugins
Provenance drift	—	—

Open in the live compare tool → Hatchet profile Sim profile More Workflow Platforms →

How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption, scaled by an evidence-confidence factor. Grade bands: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Signals refresh daily. Full methodology v4.4 →