Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-08-27 17:03 UTC

crossbario / autobahn-python

WebSocket and WAMP in Python for Twisted and asyncio

PythonCustom license★ 2,543 stars⑂ 768 forkssince Jul 2011View on GitHub ↗

KindLibraryCommand-line toolhow this is determined

#python #websocket #real-time #wamp #rpc #pubsub #autobahn

crossbario/autobahn-python holds a health index of 90 out of 100, placing it in the Excellent band. It scores highest on Engineering Quality (90/100) and lowest on Security (54/100). It was last updated 42 days ago. 2 contributors account for most of its recent work.

overall / 100

Excellent

Software health index

Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean, calibrated against the distribution of the public record so bands carry percentile meaning; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At Risk ceiling of 34.

Exceptional93-100The record's top tier (≈ top 5%); essentially all checked criteria met

Excellent80-92Strong across the board; minor gaps

Good65-79Healthy; gaps are limited and manageable

Moderate50-64Acceptable with notable gaps; review recommended

Weak35-49Material weaknesses across several areas

At Risk20-34Significant weaknesses; adoption warrants caution

Critical1-19Severe problems (abandoned, single-maintainer, no hygiene)

Score profile

Each axis is a category. The shape matters more than the average — a healthy subject fills the whole shape, while a spike-and-crater profile means strength in one dimension is masking risk in another.

The weighted overall 76 is calibrated to 90 on the published index scale (record calibration 2026-08-02).

Ownership

Crossbar.ioOrganization · verified domain

56 followers38 public repossince Oct 2013

This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.

Package ecosystems

Registry	Package	Version	Downloads / mo	Versions	Last publish	Tags
PyPI	autobahn	26.7.1	7,040,427	160	42 days ago	asyncio autobahn crossbar pubsub realtime rfc6455 rpc twisted wamp websocket

Metrics by category

Vitality

Is the project alive — is code being written and are releases shipping?

71Good · 21% of overall

Development activity

58Moderate

How it's scored

18/36	Push recency — last push 42 days ago
11.8/36	Commit cadence — 17/52 weeks with commits
18/18	Commit volume — 204 commits in the last year
10/10	OpenSSF Scorecard: Maintained — 25 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10

Inputs used

commits_last_year	204
human_commit_share	1
days_since_last_push	42
active_weeks_last_year	17

Release discipline

90Excellent

How it's scored

27/27	Ships releases — 98 releases published
36/36	Release recency — latest release 42 days ago
27/27	Release cadence — a release every ~0.1 days
0/10	OpenSSF Scorecard: Signed-Releases — Project has not signed or included provenance with any releases.

Inputs used

releases_count	98
latest_release_tag	v26_7_1
releases_from_tags	no
days_since_latest_release	42
mean_days_between_releases	0.1

Community & Adoption

Does the project have users, downloads, attention, and a welcoming setup for contributors?

86Excellent · 17% of overall

Popularity & adoption

90Excellent

How it's scored

55.2/60	Stars — 2,543 stars
24/25	Forks — 768 forks
10.8/15	Watchers — 88 watchers

Inputs used

forks	768
stars	2,543
watchers	88
growth_state	unverified
growth_factor_pct	100
growth_unverified_reason	no_history

Community health

71Good

How it's scored

22.5/22.5	README
16.9/22.5	License — license file present, not a recognized license
18/18	CONTRIBUTING guide
0/13.5	Code of conduct
0/7.2	Issue template
6.3/6.3	PR template

Inputs used

has_readme	yes
has_license	yes
readme_badges	10
has_contributing	yes
has_issue_template	no
has_code_of_conduct	no
readme_badge_services	github.com, readthedocs.org, shields.io
has_pull_request_template	yes

Ecosystem adoption (downloads)

100Exceptional

How it's scored

80/80	Monthly downloads — 7,040,427 downloads/month across pypi
0/20	Registry dependents — not reported by this ecosystem

Inputs used

packages	autobahn
dependents	—
ecosystems	pypi
total_downloads	—
monthly_downloads	7,040,427
unverified_packages_excluded	—

Excluded from scoring (no data or not applicable): Registry dependents. Remaining weights renormalized.

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

78Good · 23% of overall

Maintainer resilience (bus factor)

62Moderate

How it's scored

25.2/54	Bus factor — 2 contributor(s) cover half of all commits
12.9/22.5	Commit distribution — top contributor authored 43% of commits
13.5/13.5	Contributor breadth — 100 contributors
10/10	OpenSSF Scorecard: Contributors — project has 25 contributing companies or organizations

Inputs used

bus_factor	2
contributors_sampled	100
top_contributor_share	0.427

Issue & PR responsiveness

70Good

How it's scored

34/42	Issue resolution — 81% of issues closed
25.7/30	PR acceptance — 696/814 decided PRs merged
0/13	Newcomer PR acceptance — no first-time contributor's PR decided in 30d
1.5/15	OpenSSF Scorecard: Code-Review — Found 4/27 approved changesets -- score normalized to 1

Inputs used

merged_prs	696
open_issues	187
closed_issues	796
prs_merged_7d	0
prs_decided_7d	0
prs_merged_30d	0
prs_decided_30d	0
issue_closed_ratio	0.81
closed_unmerged_prs	118
first_time_authors_30d	0
first_time_prs_merged_30d	0
first_time_prs_decided_30d	0

Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.

Ownership & stewardship

86Excellent

How it's scored

30/30	Ownership backing — organization-owned
20/20	Verified domain
12.6/25	Owner reach — 56 followers of crossbario
23.6/25	Track record — 38 public repos, account ~12 yr old

Inputs used

followers	56
owner_type	Organization
is_verified	yes
owner_login	crossbario
public_repos	38
account_age_days	4,704

Package maintenance

100Exceptional

How it's scored

25/25	Published & resolvable — 1 package(s) on pypi
35/35	Publish recency — latest publish 42 days ago
20/20	Version history — 160 published versions
20/20	Not deprecated — active, not deprecated or yanked

Inputs used

packages	autobahn
ecosystems	pypi
any_deprecated	no
min_days_since_publish	42

Engineering Quality

Are baseline engineering and documentation practices in place?

90Excellent · 19% of overall

Engineering practices

84Excellent

How it's scored

24/24	CI workflows — 7 workflow(s)
24/24	Tests present
16/16	Linter config — pyproject.toml ([tool.ruff])
0/9.6	Pre-commit hooks
0/6.4	.editorconfig
20/20	OpenSSF Scorecard: CI-Tests — 25 out of 25 merged PRs checked by a CI test -- score normalized to 10

Inputs used

has_ci	yes
has_tests	yes
has_editorconfig	no
has_linter_config	yes
has_precommit_config	no

Documentation

100Exceptional

How it's scored

30/30	README
25/25	Documentation directory
15/15	Documentation / homepage site — https://autobahn.readthedocs.io/
10/10	Repository description
10/10	Topics — 7 topics
10/10	Wiki

Inputs used

topics	python, websocket, real-time, wamp, rpc, pubsub, autobahn
has_wiki	yes
homepage	https://autobahn.readthedocs.io/
docs_site	https://autobahn.readthedocs.io/
has_readme	yes
has_docs_dir	yes
has_description	yes

Security

Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?

54Moderate · 16% of overall

Security posture

43Weak

How it's scored

7.5/7.5	Binary-Artifacts — no binaries found in the repo
2.2/7.5	Branch-Protection — branch protection is not maximal on development and all release branches
2.5/2.5	CI-Tests — 25 out of 25 merged PRs checked by a CI test -- score normalized to 10
0/2.5	CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
0.8/7.5	Code-Review — Found 4/27 approved changesets -- score normalized to 1
2.5/2.5	Contributors — project has 25 contributing companies or organizations
10/10	Dangerous-Workflow — no dangerous workflow patterns detected
0/7.5	Dependency-Update-Tool — no update tool detected
0/5	Fuzzing — project is not fuzzed
2.2/2.5	License — license file detected
7.5/7.5	Maintained — 25 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
0/5	Packaging — no data
0/5	Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
0/5	SAST — SAST tool is not run on all commits -- score normalized to 0
0/5	Security-Policy — security policy file not detected
0/7.5	Signed-Releases — Project has not signed or included provenance with any releases.
0/7.5	Token-Permissions — detected GitHub workflow tokens with excessive permissions
7.5/7.5	Vulnerabilities — 0 existing vulnerabilities detected

Inputs used

source	openssf_scorecard
checks_evaluated	17
scorecard_version	v5.5.0
checks_inconclusive	1
scorecard_aggregate	4.3

Excluded from scoring (no data or not applicable): Packaging. Remaining weights renormalized.

Dependency advisories

100Exceptional

How it's scored

35/35	Direct dependencies free of known advisories — no direct dependency carries a known advisory
25/25	Indirect dependencies free of known advisories — no indirect dependency carries a known advisory
0/40	No advisories left outstanding — no advisory carries a publication date

Inputs used

source	osv
advisories	0
affected_packages	0
assessed_packages	9
unassessed_packages	0
affected_by_severity	none
direct_affected_packages	0

Excluded from scoring (no data or not applicable): No advisories left outstanding. Remaining weights renormalized. Matched the pypi:autobahn@26.7.1 runtime dependency closure — what installing the published package pulls in — 9 packages. Reachability is not analyzed.

AI Readiness

How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.

74Good · 4% of overall

Agent context & guidance

58Moderate

How it's scored

18/45	Agent instructions — .gemini/GEMINI.md, CLAUDE.md (stub)
0/15	Machine-readable docs (llms.txt)
40/40	Legible commit history — 93 of 100 human commits state their intent (structured subject or explanatory body)

Inputs used

has_llms_txt	no
llms_txt_url	—
legible_history_share	0.93
agent_instruction_files	.gemini/GEMINI.md, CLAUDE.md
agent_instruction_max_bytes	23

Verify loop (build / test / typecheck)

72Good

How it's scored

18/18	One-command bootstrap — docker/Makefile, examples/Makefile, examples/twisted/websocket/echo_site/Makefile, examples/twisted/websocket/echo_variants/Makefile, examples/twisted/websocket/pingpong_keepalive/Makefile, examples/twisted/websocket/wrapping/Makefile, justfile
22/22	Automated tests
11/11	Lint / format config — pyproject.toml ([tool.ruff])
11/11	Static type checking — src/autobahn/py.typed
10/10	Reproducible environment — Dockerfile
0/10	Demonstrated agent practice — no agent-authored commits among the last 100
0/8	Automated maintenance — no automated dependency updates observed
0/10	OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0

Inputs used

has_nix	no
has_tests	yes
lockfiles	—
has_dockerfile	yes
typed_language	no
bootstrap_files	docker/Makefile, examples/Makefile, examples/twisted/websocket/echo_site/Makefile, examples/twisted/websocket/echo_variants/Makefile, examples/twisted/websocket/pingpong_keepalive/Makefile, examples/twisted/websocket/wrapping/Makefile, justfile
has_devcontainer	no
has_linter_config	yes
typecheck_configs	src/autobahn/py.typed
agent_commit_share	0
toolchain_manifests	—
dependency_bot_commit_share	0

Code legibility for models

82Excellent

How it's scored

27/45	Type-checkable code — Python with type-check config (src/autobahn/py.typed)
54.5/55	Manageable file sizes — 4/477 source files over 60KB

Inputs used

primary_language	Python
largest_source_bytes	346,923
source_files_sampled	477
oversized_source_files	4

Machine-readable interfaces

100Exceptional

How it's scored

0/40	API schema (OpenAPI/GraphQL/proto) — not applicable to this kind of software
0/20	MCP server — not applicable to this kind of software
40/40	Runnable examples — examples

Inputs used

example_dirs	examples
has_mcp_signal	no
api_schema_files	—
interfaces_expected_of	—

Excluded from scoring (no data or not applicable): API schema (OpenAPI/GraphQL/proto), MCP server. Remaining weights renormalized.

Key facts

2,543GitHub stars

100contributors

204commits, last 12 months

42days since last push

98releases

2bus factor

187open issues

PyPIpackage ecosystems

Data collection warnings

Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token

More detail

Star and fork history 0 ★ / 768 ⇿

0Stars

768Forks

93Releases

When each star and fork was added, collected from GitHub and bucketed by day. Cumulative growth sits directly above the daily additions it is made of, so the two read against each other: steady organic accretion looks nothing like an abrupt, short-lived burst. Where that difference is measurable, it is reported as growth authenticity.

Major 0Minor 0Patch 0

Each point covers 14 days.

OpenSSF Scorecard 4.3 / 10

4.3aggregate

Independent, tool-agnostic security assessment from the open-source OpenSSF Scorecard. Each check rewards a security practice, not a specific vendor's tool. Checks Scorecard could not determine are marked n/a and excluded from the security score (never counted as zero).Scorecard v5.5.0 · 2026-08-27 17:03 UTC

10	Binary-Artifacts	no binaries found in the repo
3	Branch-Protection	branch protection is not maximal on development and all release branches
10	CI-Tests	25 out of 25 merged PRs checked by a CI test -- score normalized to 10
0	CII-Best-Practices	no effort to earn an OpenSSF best practices badge detected
1	Code-Review	Found 4/27 approved changesets -- score normalized to 1
10	Contributors	project has 25 contributing companies or organizations
10	Dangerous-Workflow	no dangerous workflow patterns detected
0	Dependency-Update-Tool	no update tool detected
0	Fuzzing	project is not fuzzed
9	License	license file detected
10	Maintained	25 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
n/a	Packaging	packaging workflow not detected
0	Pinned-Dependencies	dependency not pinned by hash detected -- score normalized to 0
0	SAST	SAST tool is not run on all commits -- score normalized to 0
0	Security-Policy	security policy file not detected
0	Signed-Releases	Project has not signed or included provenance with any releases.
0	Token-Permissions	detected GitHub workflow tokens with excessive permissions
10	Vulnerabilities	0 existing vulnerabilities detected

Direct dependencies 10

Registry	Package	Version constraint	Manifest
PyPI	txaio	`>=25.12.2`	pyproject.toml
PyPI	cryptography	`>=3.4.6`	pyproject.toml
PyPI	cffi	`>=2.0.0`	pyproject.toml
PyPI	hyperlink	`>=21.0.0`	pyproject.toml
PyPI	importlib-resources	`>=5.0.0`	pyproject.toml
PyPI	msgpack	`>=1.0.2`	pyproject.toml
PyPI	u-msgpack-python	`>=2.1`	pyproject.toml
PyPI	ujson	`>=4.0.2`	pyproject.toml
PyPI	cbor2	`>=5.2.0`	pyproject.toml
PyPI	cbor2	`>=5.2.0,<6`	pyproject.toml

All dependencies 59

Full resolved dependency set from the GitHub dependency graph: 9 direct and 50 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

Registry	Package	Version	Relation
PyPI	cbor2	`—`	direct
PyPI	cffi	`—`	direct
PyPI	cryptography	`—`	direct
PyPI	hyperlink	`—`	direct
PyPI	importlib-resources	`—`	direct
PyPI	msgpack	`—`	direct
PyPI	txaio	`—`	direct
PyPI	u-msgpack-python	`—`	direct
PyPI	ujson	`—`	direct
PyPI	argon2-cffi	`—`	indirect
PyPI	attrs	`—`	indirect
PyPI	auditwheel	`—`	indirect
PyPI	backports-tempfile	`—`	indirect
PyPI	base58	`—`	indirect
PyPI	bjdata	`—`	indirect
PyPI	brotli	`—`	indirect
PyPI	brotlicffi	`—`	indirect
PyPI	build	`—`	indirect
PyPI	bumpversion	`—`	indirect
PyPI	codecov	`—`	indirect
PyPI	ecdsa	`—`	indirect
PyPI	furo	`—`	indirect
PyPI	humanize	`—`	indirect
PyPI	jinja2	`—`	indirect
PyPI	linkify-it-py	`—`	indirect
PyPI	myst-parser	`—`	indirect
PyPI	passlib	`—`	indirect
PyPI	pep8-naming	`—`	indirect
PyPI	pyenchant	`—`	indirect
PyPI	pyflakes	`—`	indirect
PyPI	pylint	`—`	indirect
PyPI	pynacl	`—`	indirect
PyPI	pyopenssl	`—`	indirect
PyPI	pytest	`—`	indirect
PyPI	pytest-asyncio	`—`	indirect
PyPI	pytest-runner	`—`	indirect
PyPI	pytrie	`—`	indirect
PyPI	pyyaml	`—`	indirect
PyPI	qrcode	`—`	indirect
PyPI	qualname	`—`	indirect
PyPI	ruff	`—`	indirect
PyPI	scour	`—`	indirect
PyPI	service-identity	`—`	indirect
PyPI	setuptools	`—`	indirect
PyPI	sphinx	`—`	indirect
PyPI	sphinx-autoapi	`—`	indirect
PyPI	sphinx-copybutton	`—`	indirect
PyPI	sphinx-design	`—`	indirect
PyPI	sphinxcontrib-images	`—`	indirect
PyPI	sphinxcontrib-spelling	`—`	indirect
PyPI	sphinxext-opengraph	`—`	indirect
PyPI	twine	`—`	indirect
PyPI	twisted	`—`	indirect
PyPI	vmprof	`—`	indirect
PyPI	vmprof-flamegraph	`—`	indirect
PyPI	watchdog	`—`	indirect
PyPI	wheel	`—`	indirect
PyPI	yapf	`0.29.0`	indirect
PyPI	zope-interface	`—`	indirect

Dependency advisories 0

Installing pypi:autobahn@26.7.1 pulls in 9 packages, direct and transitive: 0 carry known advisories, of which 0 are direct dependencies.

No known advisories affect the assessed dependencies.

An advisory means the version recorded in the dependency graph falls inside an advisory’s affected range. Reachability is not analysed, and the graph includes development and test pins — a finding may concern tooling rather than shipped software.

Raw JSON report machine-readable

Feedback

Spotted something off in this report, or have thoughts to share? Wrong measurements, missed tooling, ideas, questions — anything is welcome. Every message is read and gets a response.

Scores are signals, not warranties. They reflect publicly visible practices on GitHub — not a code audit, and not a security guarantee.

Missing data is excluded and weights renormalized, never scored as zero. Methodology is versioned and open: metrics v2.10.0, schema v0.34.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statistics — PyPI.

Software health index

Score profile

Ownership

Package ecosystems

Metrics by category

Key facts

Data collection warnings

More detail

Feedback

Related records