Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-08-27 20:49 UTC

paritytech / jsonrpc

Rust JSON-RPC implementation

RustMIT★ 818 stars⑂ 264 forkssince Nov 2016View on GitHub ↗
KindLibraryNetwork servicehow this is determined

paritytech/jsonrpc holds a health index of 34 out of 100, placing it in the At Risk band. It scores highest on Sustainability & Governance (78/100) and lowest on Vitality (21/100). It was last updated 736 days ago. 2 contributors account for most of its recent work.

34
overall / 100
At Risk

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.

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)
VitalityCommunity &AdoptionSustainability &GovernanceEngineeringQualitySecurityAI Readiness

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 61 is calibrated to 67 on the published index scale (record calibration 2026-08-02).

Ownership

Parity TechnologiesOrganization · verified domain
2,065 followers777 public repossince Sep 2015

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

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
crates.iojsonrpc-ws-server18.0.061,550241864 days ago—
crates.iojsonrpc-ipc-server18.0.0132,510281864 days ago—
crates.iojsonrpc-tcp-server18.0.09,782301864 days ago—
crates.iojsonrpc-core18.0.0870,312561864 days agojsonjson-rpcserderpcjsonrpcasynchronousnetwork-programming
crates.iojsonrpc-http-server18.0.0246,138371864 days agojsonjson-rpcrpcjsonrpcserver
crates.iojsonrpc-stdio-server18.0.09,489241864 days ago—
crates.iojsonrpc-derive18.0.0243,332251864 days ago—
crates.iojsonrpc-pubsub18.0.0213,704291864 days agomacrosjsonjson-rpcrpcjsonrpc

Metrics by category

Vitality

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

21At Risk · 21% of overall
How it's scored
0/36Push recency — last push 736 days ago
0/36Commit cadence — 0/52 weeks with commits
0/18Commit volume — 0 commits in the last year
0/10OpenSSF Scorecard: Maintained — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Inputs used
commits_last_year0
human_commit_share0.95
days_since_last_push736
active_weeks_last_year0
How it's scored
27/27Ships releases — 17 releases published
0/36Release recency — latest release 1,907 days ago
19.8/27Release cadence — a release every ~95.3 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count17
latest_release_tagv17.1.0
releases_from_tagsno
days_since_latest_release1,907
mean_days_between_releases95.3
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Signed-Releases. Remaining weights renormalized.

Community & Adoption

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

73Good · 17% of overall
How it's scored
47.2/60Stars — 818 stars
20.2/25Forks — 264 forks
9.4/15Watchers — 50 watchers
Inputs used
forks264
stars818
watchers50
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (MIT)
0/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges0
has_contributingno
has_issue_templateno
has_code_of_conductno
readme_badge_services—
has_pull_request_templateno
How it's scored
80/80Monthly downloads — 1,786,817 downloads/month across crates
0/20Registry dependents — not reported by this ecosystem
Inputs used
packagesjsonrpc-ws-server, jsonrpc-ipc-server, jsonrpc-tcp-server, jsonrpc-core, jsonrpc-http-server, jsonrpc-stdio-server, jsonrpc-derive, jsonrpc-pubsub
dependents—
ecosystemscrates
total_downloads47,678,653
monthly_downloads1,786,817
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
How it's scored
25.2/54Bus factor — 2 contributor(s) cover half of all commits
14.5/22.5Commit distribution — top contributor authored 36% of commits
13.5/13.5Contributor breadth — 69 contributors
10/10OpenSSF Scorecard: Contributors — project has 13 contributing companies or organizations
Inputs used
bus_factor2
contributors_sampled69
top_contributor_share0.355
How it's scored
30.4/42Issue resolution — 72% of issues closed
26.3/30PR acceptance — 380/433 decided PRs merged
0/13Newcomer PR acceptance — no first-time contributor's PR decided in 30d
15/15OpenSSF Scorecard: Code-Review — all changesets reviewed
Inputs used
merged_prs380
open_issues67
closed_issues175
prs_merged_7d0
prs_decided_7d0
prs_merged_30d0
prs_decided_30d0
issue_closed_ratio0.723
closed_unmerged_prs53
first_time_authors_30d0
first_time_prs_merged_30d0
first_time_prs_decided_30d0
Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.
How it's scored
30/30Ownership backing — organization-owned
20/20Verified domain
23.8/25Owner reach — 2,065 followers of paritytech
25/25Track record — 777 public repos, account ~10 yr old
Inputs used
followers2,065
owner_typeOrganization
is_verifiedyes
owner_loginparitytech
public_repos777
account_age_days4,006
How it's scored
25/25Published & resolvable — 8 package(s) on crates
4/35Publish recency — latest publish 1,864 days ago
20/20Version history — 56 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packagesjsonrpc-ws-server, jsonrpc-ipc-server, jsonrpc-tcp-server, jsonrpc-core, jsonrpc-http-server, jsonrpc-stdio-server, jsonrpc-derive, jsonrpc-pubsub
ecosystemscrates
any_deprecatedno
min_days_since_publish1,864

Engineering Quality

Are baseline engineering and documentation practices in place?

68Good · 19% of overall
How it's scored
24/24CI workflows — 1 workflow(s)
24/24Tests present
16/16Linter config — rustfmt.toml
0/9.6Pre-commit hooks
6.4/6.4.editorconfig
0/20OpenSSF Scorecard: CI-Tests — 0 out of 30 merged PRs checked by a CI test -- score normalized to 0
Inputs used
has_ciyes
has_testsyes
has_editorconfigyes
has_linter_configyes
has_precommit_configno
How it's scored
30/30README
0/25Documentation directory
15/15Documentation / homepage site — https://docs.rs/jsonrpc-ws-server/
10/10Repository description
0/10Topics
10/10Wiki
Inputs used
topics—
has_wikiyes
homepage—
docs_sitehttps://docs.rs/jsonrpc-ws-server/
has_readmeyes
has_docs_dirno
has_descriptionyes

Security

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

67Good · 16% of overall
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
0/7.5Branch-Protection — no data
0/2.5CI-Tests — 0 out of 30 merged PRs checked by a CI test -- score normalized to 0
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
7.5/7.5Code-Review — all changesets reviewed
2.5/2.5Contributors — project has 13 contributing companies or organizations
10/10Dangerous-Workflow — no dangerous workflow patterns detected
7.5/7.5Dependency-Update-Tool — update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
0/7.5Maintained — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
0/5Packaging — no data
0/5Pinned-Dependencies — no data
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
5/5Security-Policy — security policy file detected
0/7.5Signed-Releases — no data
0/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
7.5/7.5Vulnerabilities — 0 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated14
scorecard_versionv5.5.0
checks_inconclusive4
scorecard_aggregate6.2
Excluded from scoring (no data or not applicable): Branch-Protection, Packaging, Pinned-Dependencies, Signed-Releases. Remaining weights renormalized.
How it's scored
35/35Direct dependencies free of known advisories — no direct dependency carries a known advisory
17.3/25Indirect dependencies free of known advisories — 3 affected: rand 0.7.3 (low), instant 0.1.13 (unknown), net2 0.2.39 (unknown)
34/40No advisories left outstanding — 3 advisory-carrying package(s) unaddressed past 90 days; oldest published 2,309 days ago
Inputs used
sourceosv
advisories4
affected_packages3
assessed_packages103
unassessed_packages0
affected_by_severitylow 1, unknown 2
direct_affected_packages0
Matched the crates:jsonrpc-ws-server@18.0.0 runtime dependency closure — what installing the published package pulls in — 103 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.

62Moderate · 4% of overall
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
40/40Legible commit history — 95 of 95 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share1
agent_instruction_files—
agent_instruction_max_bytes—
How it's scored
12.6/18One-command bootstrap — Cargo.toml, core-client/Cargo.toml, core-client/transports/Cargo.toml (toolchain convention, no task runner)
22/22Automated tests
11/11Lint / format config — rustfmt.toml
11/11Static type checking — Rust (statically typed)
0/10Reproducible environment
0/10Demonstrated agent practice — no agent-authored commits among the last 100
8/8Automated maintenance — 5 of the last 100 commits are automated dependency updates
0/10OpenSSF Scorecard: Pinned-Dependencies — no data
Inputs used
has_nixno
has_testsyes
lockfiles—
has_dockerfileno
typed_languageyes
bootstrap_files—
has_devcontainerno
has_linter_configyes
typecheck_configs—
agent_commit_share0
toolchain_manifestsCargo.toml, core-client/Cargo.toml, core-client/transports/Cargo.toml, core/Cargo.toml, derive/Cargo.toml, http/Cargo.toml, ipc/Cargo.toml, pubsub/Cargo.toml, pubsub/more-examples/Cargo.toml, server-utils/Cargo.toml, stdio/Cargo.toml, tcp/Cargo.toml, test/Cargo.toml, ws/Cargo.toml
dependency_bot_commit_share0.05
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Pinned-Dependencies. Remaining weights renormalized.
How it's scored
45/45Type-checkable code — Rust (statically typed)
55/55Manageable file sizes — 0/123 source files over 60KB
Inputs used
primary_languageRust
largest_source_bytes34,651
source_files_sampled123
oversized_source_files0
How it's scored
0/40API schema (OpenAPI/GraphQL/proto)
0/20MCP server
40/40Runnable examples — examples
Inputs used
example_dirsexamples
has_mcp_signalno
api_schema_files—
interfaces_expected_ofnetwork-service

Key facts

818GitHub stars
69contributors
0commits, last 12 months
736days since last push
17releases
2bus factor
67open issues
crates.iopackage ecosystems

Data collection warnings

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

More detail

Star and fork history 0 ★ / 264 ⇿
0Stars
264Forks
17Releases

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.

0408012016020018442017-022021-102026-07
Major 7Minor 4Patch 6

Each point covers 9 days.

OpenSSF Scorecard 6.2 / 10
6.2aggregate

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 20:49 UTC

10Binary-Artifactsno binaries found in the repo
n/aBranch-Protectioninternal error: error during branchesHandler.setup: internal error: some github tokens can't read classic branch protection rules: https://github.com/ossf/scorecard-action/blob/main/docs/authentication/fine-grained-auth-token.md
0CI-Tests0 out of 30 merged PRs checked by a CI test -- score normalized to 0
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
10Code-Reviewall changesets reviewed
10Contributorsproject has 13 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
0Maintained0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
n/aPackagingpackaging workflow not detected
n/aPinned-Dependenciesno dependencies found
0SASTSAST tool is not run on all commits -- score normalized to 0
10Security-Policysecurity policy file detected
n/aSigned-Releasesno releases found
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
10Vulnerabilities0 existing vulnerabilities detected
Direct dependencies 62
RegistryPackageVersion constraintManifest
crates.iojsonrpc-client-transports18.0.0core-client/Cargo.toml
crates.iofutures0.3core-client/Cargo.toml
crates.iolog0.4core/Cargo.toml
crates.iofutures0.3core/Cargo.toml
crates.iofutures-util0.3core/Cargo.toml
crates.iofutures-executor0.3core/Cargo.toml
crates.ioserde1.0core/Cargo.toml
crates.ioserde_json1.0core/Cargo.toml
crates.ioserde_derive1.0core/Cargo.toml
crates.iosyn1.0derive/Cargo.toml
crates.ioproc-macro21.0derive/Cargo.toml
crates.ioquote1.0.6derive/Cargo.toml
crates.ioproc-macro-crate0.1.4derive/Cargo.toml
crates.iofutures0.3http/Cargo.toml
crates.iohyper0.14http/Cargo.toml
crates.iojsonrpc-core18.0.0http/Cargo.toml
crates.iojsonrpc-server-utils18.0.0http/Cargo.toml
crates.iolog0.4http/Cargo.toml
crates.ionet20.2http/Cargo.toml
crates.ioparking_lot0.11.0http/Cargo.toml
crates.iounicase2.0http/Cargo.toml
crates.iofutures0.3ipc/Cargo.toml
crates.iolog0.4ipc/Cargo.toml
crates.iotower-service0.3ipc/Cargo.toml
crates.iojsonrpc-core18.0.0ipc/Cargo.toml
crates.iojsonrpc-server-utils18.0.0ipc/Cargo.toml
crates.ioparity-tokio-ipc0.9ipc/Cargo.toml
crates.ioparking_lot0.11.0ipc/Cargo.toml
crates.iofutures0.3pubsub/Cargo.toml
crates.iojsonrpc-core18.0.0pubsub/Cargo.toml
crates.iolazy_static1.4pubsub/Cargo.toml
crates.iolog0.4pubsub/Cargo.toml
crates.ioparking_lot0.11.0pubsub/Cargo.toml
crates.iorand0.7pubsub/Cargo.toml
crates.ioserde1.0pubsub/Cargo.toml
crates.iobytes1.0server-utils/Cargo.toml
crates.iofutures0.3server-utils/Cargo.toml
crates.ioglobset0.4server-utils/Cargo.toml
crates.iojsonrpc-core18.0.0server-utils/Cargo.toml
crates.iolazy_static1.1.0server-utils/Cargo.toml
crates.iolog0.4server-utils/Cargo.toml
crates.iotokio1server-utils/Cargo.toml
crates.iotokio-util0.6server-utils/Cargo.toml
crates.iotokio-stream0.1server-utils/Cargo.toml
crates.iounicase2.0server-utils/Cargo.toml
crates.iofutures0.3stdio/Cargo.toml
crates.iojsonrpc-core18.0.0stdio/Cargo.toml
crates.iolog0.4stdio/Cargo.toml
crates.iotokio1stdio/Cargo.toml
crates.iotokio-util0.6stdio/Cargo.toml
crates.iojsonrpc-core18.0.0tcp/Cargo.toml
crates.iojsonrpc-server-utils18.0.0tcp/Cargo.toml
crates.iolog0.4tcp/Cargo.toml
crates.ioparking_lot0.11.0tcp/Cargo.toml
crates.iotower-service0.3tcp/Cargo.toml
crates.iofutures0.3ws/Cargo.toml
crates.iojsonrpc-core18.0.0ws/Cargo.toml
crates.iojsonrpc-server-utils18.0.0ws/Cargo.toml
crates.iolog0.4ws/Cargo.toml
crates.ioparking_lot0.11.0ws/Cargo.toml
crates.ioslab0.4ws/Cargo.toml
crates.ioparity-ws0.11.1ws/Cargo.toml
All dependencies 42

Full resolved dependency set from the GitHub dependency graph: 29 direct and 13 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
crates.iobytes—direct
crates.iofutures—direct
crates.iofutures-executor—direct
crates.iofutures-util—direct
crates.ioglobset—direct
crates.iohyper—direct
crates.iojsonrpc-client-transports—direct
crates.iojsonrpc-core—direct
crates.iojsonrpc-server-utils—direct
crates.iolazy_static—direct
crates.iolog—direct
crates.ionet2—direct
crates.ioparity-tokio-ipc—direct
crates.ioparity-ws—direct
crates.ioparking_lot—direct
crates.ioproc-macro-crate—direct
crates.ioproc-macro2—direct
crates.ioquote—direct
crates.iorand—direct
crates.ioserde—direct
crates.ioserde_derive—direct
crates.ioserde_json—direct
crates.ioslab—direct
crates.iosyn—direct
crates.iotokio—direct
crates.iotokio-stream—direct
crates.iotokio-util—direct
crates.iotower-service—direct
crates.iounicase—direct
crates.ioassert_matches—indirect
crates.ioderive_more—indirect
crates.ioenv_logger—indirect
crates.iohyper-tls—indirect
crates.iojsonrpc-core-client—indirect
crates.iojsonrpc-derive—indirect
crates.iojsonrpc-http-server—indirect
crates.iojsonrpc-ipc-server—indirect
crates.iojsonrpc-pubsub—indirect
crates.iojsonrpc-tcp-server—indirect
crates.iojsonrpc-ws-server—indirect
crates.iotrybuild—indirect
crates.iowebsocket—indirect
Dependency advisories 3

Installing crates:jsonrpc-ws-server@18.0.0 pulls in 103 packages, direct and transitive: 3 carry known advisories, of which 0 are direct dependencies.

PackageVersionRelationSeverityAdvisoriesFixed in
rand0.7.3indirectlow20.10.1
instant0.1.13indirectunknown1—
net20.2.39indirectunknown1—

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.

The message is kept through sign-in.

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 — crates.io.