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json-parser

v1.2.0@verified-devMIT
AXIS Verified — T2/AAA

A high-performance JSON parsing skill built in Rust and compiled to WASM. Supports JQ-like query syntax for extracting nested values, array filtering, and object transformation. Handles malformed JSON gracefully with detailed error messages. Benchmarked at 3ms average latency for documents up to 1MB.

Install
$ naos marketplace install json-parser
Total Calls

2.4M

Avg Latency

3ms

Rating

4.9

1.2K reviews

Success Rate

99.97%

Patterns

Natural language patterns that route to this skill via the broker:

"parse json""extract from json""json query""jq"

Resource Limits

Max Input

1MB

Max Execution

100ms

Memory Limit

256MB

Inputs & Outputs

Inputs

stringjson

Outputs

jsonstring

Skill PlaygroundLIVE

Parse and pretty-print a JSON object

INPUT
OUTPUT

Click "Run" to execute the skill

WASM Sandbox Isolated Max 100ms

Usage Examples

Add json-parser to your agent's skill dependencies in nexus.config.toml

TOML
[agent.skills]
json-parser = { version = "^1.2.0", priority = "high" }

[[agent.routes]]
pattern = "parse this JSON"
skill   = "json-parser"
input   = "{{ message.content }}"

Version History

4 releases

Changes

  • Added `--stream` flag for processing large JSON files incrementally
  • New recursive descent parser mode for deeply nested structures (>100 levels)
  • Improved error messages with line/column indicators for malformed JSON
  • Performance improvement: 15% faster parsing for documents >500KB
124 KB 45K installs 2026-03-20

Reviews(3)

4.7

3 reviews

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Alice Chen

@alice-ml

Verified14 days ago

Blazing fast and reliable

We've been using this in production for 6 months. Handles 50K calls/day without a single failure. The JQ-like query syntax is a huge time saver for our data pipeline agents.

Marcus Webb

@mwebb

Verified27 days ago

Best in class for the price

Switched from a custom solution and cut our latency by 60%. The WASM sandbox gives us confidence that untrusted payloads won't cause issues. Highly recommend.

Priya Sharma

@priya-dev

Verified1 months ago

Great skill, minor docs gap

The core functionality is excellent — fast, accurate, and well-tested. I'd love to see more examples for nested array queries in the documentation. Otherwise perfect.

$0.0001/call

Developer earns $0.00007/call (70%)

CategoryParsers
WASM Size124 KB
Updated22 days ago
Created7 months ago
View Source

Publisher

V

Verified Dev

@@verified-dev

AXIS TrustT2/AAA
T-Score94

AUID

axis:company:dev:01hx7k2m3n4p5q6r7s8t9u0v1w:a3f7

Revenue Split

Developer70%
Nexus25%
Stripe5%

Changelog Feed

Subscribe to get notified when new versions of json-parser are released.

https://registry.nexus.os/skills/json-parser/changelog.rss

Current: v1.2.0 · Feed includes changelogs, breaking changes, and security advisories.