Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-25 08:00 UTC

nervosnetwork / jsonrpc

Rust JSON-RPC implementation

RustMIT★ 1 star⑂ 0 forkssince Dec 2018forkView on GitHub ↗

nervosnetwork/jsonrpc holds a health index of 21 out of 100, placing it in the At Risk band. It scores highest on AI Readiness (66/100) and lowest on Community & Adoption (13/100). It was last updated 2727 days ago. 2 contributors account for most of its recent work.

21
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.

21
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 31 is calibrated to 25 on the published index scale (record calibration 2026-08-02).

Ownership

Nervos NetworkOrganization
477 followers239 public repossince Jan 2018

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

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
crates.iojsonrpc-ws-serverpoints to another repo — not scored18.0.066,248241892 days ago—
crates.iojsonrpc-ipc-serverpoints to another repo — not scored18.0.0127,316281892 days ago—
crates.iojsonrpc-tcp-serverpoints to another repo — not scored18.0.010,024301892 days ago—
crates.iojsonrpc-corepoints to another repo — not scored18.0.0886,387561892 days agojsonjson-rpcserderpcjsonrpcasynchronousnetwork-programming
crates.iojsonrpc-http-serverpoints to another repo — not scored18.0.0242,714371892 days agojsonjson-rpcrpcjsonrpcserver
crates.iojsonrpc-stdio-serverpoints to another repo — not scored18.0.011,001241892 days ago—
crates.iojsonrpc-macrospoints to another repo — not scored10.1.0179102780 days agojson-rpcjsonrpcjsonmacrosrpc
crates.iojsonrpc-pubsubpoints to another repo — not scored18.0.0209,398291892 days agomacrosjsonjson-rpcrpcjsonrpc
crates.iojsonrpc-pubsub-examplespoints to another repo — not scored14.0.5212492 days ago—

Metrics by category

Vitality

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

17Critical · 21% of overall

Development activity

1Critical
How it's scored
0/36Push recency — last push 2,727 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_share0.92
days_since_last_push2,727
active_weeks_last_year0

Release discipline

40Weak
How it's scored
16.2/27Ships releases — 7 version tags (no GitHub releases)
0/36Release recency — latest release 2,886 days ago
19.8/27Release cadence — a release every ~104 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count7
latest_release_tagv9.0.0
releases_from_tagsyes
days_since_latest_release2,886
mean_days_between_releases104
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?

13Critical · 17% of overall

Popularity & adoption

3Critical
How it's scored
0/60Stars — 1 stars
0/25Forks — 0 forks
2.7/15Watchers — 4 watchers
Inputs used
forks0
stars1
watchers4
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

25At Risk
How it's scored
0/22.5README
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_readmeno
has_licenseno
readme_badges0
has_contributingno
has_issue_templateno
has_code_of_conductno
readme_badge_services—
has_pull_request_templateno

Sustainability & Governance

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

47Weak · 23% of overall

Maintainer resilience (bus factor)

63Moderate
How it's scored
25.2/54Bus factor — 2 contributor(s) cover half of all commits
14.4/22.5Commit distribution — top contributor authored 36% of commits
13.5/13.5Contributor breadth — 29 contributors
10/10OpenSSF Scorecard: Contributors — project has 7 contributing companies or organizations
Inputs used
bus_factor2
contributors_sampled29
top_contributor_share0.359

Issue & PR responsiveness

1Critical
How it's scored
0/42Issue resolution — no issues or no data
0/30PR acceptance — no decided pull requests or no data
0/13Newcomer PR acceptance — no first-time contributor's PR decided in 30d
0/15OpenSSF Scorecard: Code-Review — Found 0/30 approved changesets -- score normalized to 0
Inputs used
merged_prs0
open_issues0
closed_issues0
prs_merged_7d0
prs_decided_7d0
prs_merged_30d0
prs_decided_30d0
issue_closed_ratio—
closed_unmerged_prs0
first_time_authors_30d0
first_time_prs_merged_30d0
first_time_prs_decided_30d0
Excluded from scoring (no data or not applicable): Issue resolution, PR acceptance, Newcomer PR acceptance. Remaining weights renormalized.

Ownership & stewardship

74Good
How it's scored
30/30Ownership backing — organization-owned
0/20Verified domain
19.3/25Owner reach — 477 followers of nervosnetwork
25/25Track record — 239 public repos, account ~8 yr old
Inputs used
followers477
owner_typeOrganization
is_verifiedno
owner_loginnervosnetwork
public_repos239
account_age_days3,178

Engineering Quality

Are baseline engineering and documentation practices in place?

27At Risk · 19% of overall

Engineering practices

38Weak
How it's scored
0/24CI workflows
24/24Tests present
0/16Linter config
0/9.6Pre-commit hooks
6.4/6.4.editorconfig
0/20OpenSSF Scorecard: CI-Tests — no data
Inputs used
has_cino
has_testsyes
has_editorconfigyes
has_linter_configno
has_precommit_configno
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: CI-Tests. Remaining weights renormalized.

Documentation

10Critical
How it's scored
0/30README
0/25Documentation directory
0/15Documentation / homepage site
0/10Repository description
0/10Topics
10/10Wiki
Inputs used
topics—
has_wikiyes
homepage—
docs_site—
has_readmeno
has_docs_dirno
has_descriptionno

Security

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

44Weak · 16% of overall

Security posture

33At Risk
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 — no data
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
0/7.5Code-Review — Found 0/30 approved changesets -- score normalized to 0
2.5/2.5Contributors — project has 7 contributing companies or organizations
0/10Dangerous-Workflow — no data
0/7.5Dependency-Update-Tool — no 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 — no SAST tool detected
0/5Security-Policy — security policy file not detected
0/7.5Signed-Releases — no data
0/7.5Token-Permissions — no data
7.5/7.5Vulnerabilities — 0 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated11
scorecard_versionv5.5.0
checks_inconclusive7
scorecard_aggregate3.3
Excluded from scoring (no data or not applicable): Branch-Protection, CI-Tests, Dangerous-Workflow, Packaging, Pinned-Dependencies, Signed-Releases, Token-Permissions. Remaining weights renormalized.

Dependency advisories

86Excellent
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 2,337 days ago
Inputs used
sourceosv
advisories4
affected_packages3
assessed_packages102
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 — 102 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.

66Good · 4% of overall

Agent context & guidance

40Weak
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
40/40Legible commit history — 88 of 92 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share0.957
agent_instruction_files—
agent_instruction_max_bytes—

Verify loop (build / test / typecheck)

60Moderate
How it's scored
12.6/18One-command bootstrap — Cargo.toml, core/Cargo.toml, http/Cargo.toml (toolchain convention, no task runner)
22/22Automated tests
0/11Lint / format config
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 — 8 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_configno
typecheck_configs—
agent_commit_share0
toolchain_manifestsCargo.toml, core/Cargo.toml, http/Cargo.toml, ipc/Cargo.toml, macros/Cargo.toml, minihttp/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_share0.08
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Pinned-Dependencies. Remaining weights renormalized.

Code legibility for models

100Exceptional
How it's scored
45/45Type-checkable code — Rust (statically typed)
55/55Manageable file sizes — 0/85 source files over 60KB
Inputs used
primary_languageRust
largest_source_bytes30,837
source_files_sampled85
oversized_source_files0

Machine-readable interfaces

100Exceptional
How it's scored
0/40API schema (OpenAPI/GraphQL/proto) — not applicable to this kind of software
0/20MCP server — not applicable to this kind of software
40/40Runnable examples — examples
Inputs used
example_dirsexamples
has_mcp_signalno
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

1GitHub stars
29contributors
0commits, last 12 months
2,727days since last push
7releases
2bus factor
0open issues
crates.iopackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
  • Community profile unavailable
  • crates package 'jsonrpc-ws-server' points at a different repository (https://github.com/paritytech/jsonrpc); excluded from ecosystem scoring
  • crates package 'jsonrpc-ipc-server' points at a different repository (https://github.com/paritytech/jsonrpc); excluded from ecosystem scoring
  • crates package 'jsonrpc-tcp-server' points at a different repository (https://github.com/paritytech/jsonrpc); excluded from ecosystem scoring
  • crates package 'jsonrpc-core' points at a different repository (https://github.com/paritytech/jsonrpc); excluded from ecosystem scoring
  • crates package 'jsonrpc-http-server' points at a different repository (https://github.com/paritytech/jsonrpc); excluded from ecosystem scoring
  • crates package 'jsonrpc-stdio-server' points at a different repository (https://github.com/paritytech/jsonrpc); excluded from ecosystem scoring
  • crates package 'jsonrpc-macros' points at a different repository (https://github.com/paritytech/jsonrpc); excluded from ecosystem scoring
  • crates package 'jsonrpc-pubsub' points at a different repository (https://github.com/paritytech/jsonrpc); excluded from ecosystem scoring
  • crates package 'jsonrpc-pubsub-examples' points at a different repository (https://github.com/paritytech/jsonrpc); excluded from ecosystem scoring
  • GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository

More detail

OpenSSF Scorecard 3.3 / 10
3.3aggregate

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 · 2026-09-25 08:00 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
n/aCI-Testsno pull request found
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
0Code-ReviewFound 0/30 approved changesets -- score normalized to 0
10Contributorsproject has 7 contributing companies or organizations
n/aDangerous-Workflowno workflows found
0Dependency-Update-Toolno update 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
0SASTno SAST tool detected
0Security-Policysecurity policy file not detected
n/aSigned-Releasesno releases found
n/aToken-PermissionsNo tokens found
10Vulnerabilities0 existing vulnerabilities detected
Direct dependencies 63
RegistryPackageVersion constraintManifest
crates.iolog0.4core/Cargo.toml
crates.iofutures~0.1.6core/Cargo.toml
crates.ioserde1.0core/Cargo.toml
crates.ioserde_json1.0core/Cargo.toml
crates.ioserde_derive1.0core/Cargo.toml
crates.iohyper0.12http/Cargo.toml
crates.iojsonrpc-core9.0http/Cargo.toml
crates.iojsonrpc-server-utils9.0http/Cargo.toml
crates.iolog0.4http/Cargo.toml
crates.ionet20.2http/Cargo.toml
crates.iounicase2.0http/Cargo.toml
crates.iolog0.4ipc/Cargo.toml
crates.iotokio-service0.1ipc/Cargo.toml
crates.iojsonrpc-core9.0ipc/Cargo.toml
crates.iojsonrpc-server-utils9.0ipc/Cargo.toml
crates.ioparity-tokio-ipc0.1ipc/Cargo.toml
crates.ioparking_lot0.6ipc/Cargo.toml
crates.ioserde1.0macros/Cargo.toml
crates.iojsonrpc-core9.0macros/Cargo.toml
crates.iojsonrpc-pubsub9.0macros/Cargo.toml
crates.iobytes0.4minihttp/Cargo.toml
crates.iojsonrpc-core9.0minihttp/Cargo.toml
crates.iojsonrpc-server-utils9.0minihttp/Cargo.toml
crates.iolog0.4minihttp/Cargo.toml
crates.ioparking_lot0.6minihttp/Cargo.toml
crates.iotokio-minihttp—minihttp/Cargo.toml
crates.iotokio-proto—minihttp/Cargo.toml
crates.iotokio-service0.1minihttp/Cargo.toml
crates.iolog0.4pubsub/Cargo.toml
crates.ioparking_lot0.6pubsub/Cargo.toml
crates.iojsonrpc-core9.0pubsub/Cargo.toml
crates.iobytes0.4server-utils/Cargo.toml
crates.ioglobset0.4server-utils/Cargo.toml
crates.iojsonrpc-core9.0server-utils/Cargo.toml
crates.iolazy_static1.1.0server-utils/Cargo.toml
crates.iolog0.4server-utils/Cargo.toml
crates.ionum_cpus1.8server-utils/Cargo.toml
crates.iotokio0.1server-utils/Cargo.toml
crates.iotokio-codec0.1server-utils/Cargo.toml
crates.iounicase2.0server-utils/Cargo.toml
crates.iofutures0.1.23stdio/Cargo.toml
crates.iojsonrpc-core9.0stdio/Cargo.toml
crates.iolog0.4stdio/Cargo.toml
crates.iotokio0.1.7stdio/Cargo.toml
crates.iotokio-codec0.1.0stdio/Cargo.toml
crates.iotokio-io0.1.7stdio/Cargo.toml
crates.iotokio-stdin-stdout0.1.4stdio/Cargo.toml
crates.iolog0.4tcp/Cargo.toml
crates.ioparking_lot0.6tcp/Cargo.toml
crates.iotokio-service0.1tcp/Cargo.toml
crates.iojsonrpc-core9.0tcp/Cargo.toml
crates.iojsonrpc-server-utils9.0tcp/Cargo.toml
crates.ioerror-chain0.12ws/Cargo.toml
crates.iojsonrpc-core9.0ws/Cargo.toml
crates.iojsonrpc-server-utils9.0ws/Cargo.toml
crates.iolog0.4ws/Cargo.toml
crates.ioparking_lot0.6ws/Cargo.toml
crates.ioslab0.4ws/Cargo.toml
crates.iows—ws/Cargo.toml
crates.iojsonrpc-core9.0pubsub/more-examples/Cargo.toml
crates.iojsonrpc-pubsub9.0pubsub/more-examples/Cargo.toml
crates.iojsonrpc-ws-server9.0pubsub/more-examples/Cargo.toml
crates.iojsonrpc-ipc-server9.0pubsub/more-examples/Cargo.toml
All dependencies not collected

The resolved dependency set could not be collected for this report: GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository

Dependency advisories 3

Installing crates:jsonrpc-ws-server@18.0.0 pulls in 102 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

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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.