Sim has an HVTrust score of 65.3/100 (Grade B), ranked #463 of 1325 tracked AI agent projects. This score reflects verifiable supply-chain integrity, transparency, maintenance, and adoption signals.

What is the trust score for Sim?

Sim scores 65.3/100 on HVTracker's evidence-weighted HVTrust scale. It has 29.7k GitHub stars and is categorized under Workflow Platforms.

Sim

simstudioai/sim

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

Workflow Platforms TypeScript Listed Apache-2.0

Is Sim safe? Promising trust profile, but some evidence still deserves review.

OSSF Scorecard 5.5 / 10

Provenance None

Signed commits 100%

Last push today

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In detail: Sim scores 65.3/100 (Grade B), ranked #463 of 1325 tracked open-source AI agent projects, on evidence coverage C (2 of 5 independent signal types). The public evidence: no package-provenance attestation found; OSSF Scorecard rates its supply-chain practices 5.5/10; 100% of recent commits are signed; last pushed 2026-09-26. Every point is earned from checkable signals — never paid placement. How scoring works →

How Sim compares in Workflow Platforms

Bars show each HVTrust score; the tick marks Sim’s 65.3.

Where the 65.3 comes from

HVTrust dimensions vs the Workflow Platforms average

65.3 / 100 · 100.0% confidence

Sim Workflow Platforms average (25 agents)

Safety / Integrity50% OSSF Scorecard · 30% provenance · 20% signed commits

11.9 / 25

1.7 above avg 10.2

Identity / Provenance60% listing status · 40% build provenance

10.8 / 18

0.9 below avg 11.7

Transparency50% declared license · 50% OSSF Scorecard

13.2 / 17

0.8 above avg 12.4

Maintenance60% last-push freshness · 40% commit activity

20.0 / 20

2.8 above avg 17.2

AdoptionLog-scaled stars · package downloads

10.7 / 20

1.9 below avg 12.6

Quick Trust Read

What Would Improve It

Publish package provenance or release attestations for stronger supply-chain evidence.

Recent Changes

2026-09-23

Rank Moved

Rank dropped 273 spots (#178 → #451)

2026-09-21

Rank Moved

Rank rose 267 spots (#447 → #180)

2026-09-20

Rank Moved

Rank rose 14 spots (#461 → #447)

Maintainer Checklist

Raise Scorecard signals Current OSSF Scorecard is 5.5/10. Tighten the weakest checks to improve public safety evidence.

Publish provenance Add package provenance or release attestations so users can verify where shipped artifacts came from.

Compare with another agent Get email alerts for Sim View Workflow Platforms Report missing data

93.5

Activity sub-score · out of 100

#11

In Workflow Platforms

How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption. Grade B reflects the trust score band: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Evidence coverage C is separate — it grades how many independent signal types back the score (2 of 5), so a high score on thin evidence stays visible. Full methodology →

Rank Trend

2026-08-11 2026-09-26

Activity & Reach

Stars

29.7k

Forks

3.8k

Last Push

2026-09-26

today

Commits (4 wk)

893

Downloads (7d)

—

HN mentions (30d)

—

Open Issues

121

Rank Change

▼6

was #457

Analysis

Activity Inputs

93.5 / 100

StarsRepository reach

26.8 / 30

FreshnessLast push recency

25.0 / 25

ActivityRecent commits

25 / 25

CommunityFork signal

16.7 / 20

Supply Chain Trust

Package Provenance

None

No package attestations found

OSSF Scorecard

5.5 / 10

OpenSSF Scorecard · scanned Sep 26, 2026

Signed Commits

100%

of last 100 commits verified

Binary-Artifacts 10

Branch-Protection 3

CI-Tests 10

CII-Best-Practices 0

Code-Review 1

Contributors 10

Dangerous-Workflow 10

Dependency-Update-Tool 10

Fuzzing 0

License 10

Maintained 10

Packaging -1

Pinned-Dependencies 7

SAST 7

Security-Policy 10

Signed-Releases 0

Token-Permissions 0

Vulnerabilities 0

Common questions about Sim

Sim has a mixed signal profile. Some trust indicators are present, others are missing. Whether it is safe for your use case depends on which gaps matter to you — review the breakdown below before adopting in production.

Does Sim publish package provenance?

No published build provenance is currently detected for Sim. This is common for open-source projects but means consumers cannot independently verify that the package on the registry matches the GitHub source.

Does Sim have an OpenSSF Scorecard?

Sim has an OpenSSF Scorecard score of 5.5/10. The Scorecard checks for branch protection, signed releases, dependency updates, fuzzing, code review, and other supply-chain hygiene items. See the full check breakdown on this page.

Is Sim actively maintained?

Actively maintained. The repository was pushed to within the last 1 day(s).

What license does Sim use?

Sim ships under Apache-2.0. A declared, OSI-approved license is one of the transparency signals HVTrust scores.

Are Sim's commits signed?

100% of the last 100 commits to Sim are verified-signed (GPG, SSH, S/MIME, or GitHub's signing flow). Signed commits help confirm that code was authored by who the commit claims.

Not a safety endorsement. HVTracker describes what public signals show, not whether a project is safe for your use case. Run your own security review before adopting in production.

AI agent surface

MCP, providers, tool surface

Scored in HVTrust

These runtime-trust fields — detected from public repo docs and manifests — contribute a bounded adjustment to this project's HVTrust score alongside supply-chain evidence. The exact values each field can add or subtract are documented in the methodology → Compare this surface across every listed agent in the capability matrix →

MCP Server Support

high confidence

Implemented

Sim appears to expose MCP server capabilities.

Detailed evidence is not shown in the public view.

External Service Dependencies

high confidence

7 detected

Public provider/service dependencies detected.

Credential signal: No explicit API-key/config marker detected.

Tool / Plugin Surface

medium confidence

1 tags

Broad capability areas detected.

database

Detailed evidence is not shown in the public view.

Package Provenance Drift

N/A

No package source configured

Detailed evidence is not shown in the public view.

MCP signal live
External deps live
Tool / plugin surface live
Package provenance drift live

Maintain Sim?

For maintainers

HVTrust scores Sim from public signals only — we never contact maintainers first. If a signal is wrong, stale, or missing (provenance you publish, a Scorecard you run, signed releases), tell us and we'll review it. Corrections are public and tracked on GitHub.

Submit a correction → Add the trust badge

Reputation Timeline

Signal history

2026-09-23

Rank Moved

Rank dropped 273 spots (#178 → #451)

2026-09-21

Rank Moved

Rank rose 267 spots (#447 → #180)

2026-09-20

Rank Moved

Rank rose 14 spots (#461 → #447)

2026-09-11

Rank Moved

Rank dropped 11 spots (#432 → #443)

2026-09-07

Rank Moved

Rank dropped 24 spots (#392 → #416)

2026-09-05

Rank Moved

Rank dropped 65 spots (#321 → #386)

2026-09-04

Rank Moved

Rank dropped 10 spots (#311 → #321)

2026-09-03

Rank Moved

Rank dropped 20 spots (#291 → #311)

2026-08-31

Rank Moved

Rank dropped 28 spots (#260 → #288)

2026-08-29

Rank Moved

Rank dropped 11 spots (#256 → #267)

2026-08-26

Rank Moved

Rank dropped 21 spots (#233 → #254)

2026-08-24

Rank Moved

Rank dropped 15 spots (#218 → #233)

2026-08-22

Rank Moved

Rank rose 14 spots (#231 → #217)

2026-08-19

Rank Moved

Rank dropped 14 spots (#215 → #229)

2026-08-17

Rank Moved

Rank rose 13 spots (#224 → #211)

2026-08-13

Rank Moved

Rank dropped 35 spots (#188 → #223)

2026-08-12

Rank Moved

Rank rose 19 spots (#207 → #188)

2026-08-10

Rank Moved

Rank dropped 17 spots (#207 → #224)

2026-08-08

Rank Moved

Rank dropped 31 spots (#159 → #190)

2026-07-14

Rank Moved

Rank dropped 11 spots (#149 → #160)

2026-07-13

Rank Moved

Rank dropped 20 spots (#129 → #149)

GitHub →

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For maintainers

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Other agents in Workflow Platforms

Data sources
GitHub REST API (repo, commits, stars, forks, license) · OpenSSF Scorecard CLI
Each agent's signals refresh once daily across 6 staggered batches. Methodology v4.3 · Raw JSON