JSON Validate, Repair, Convert,

json-suite.underscoredone.com · 1 paid endpoint · listed 2026-10-27

Every agent and developer hits broken or confusing JSON. This tool handles the common headaches in one place: check whether JSON is valid with the exact error location, repair near-JSON with typos, pretty-print or minify, pull values out with a path expression, diff two documents, convert to and from YAML or CSV, produce a byte-stable canonical form for hashing, validate against a schema, and report size and structure. Same input, same output, no side effects.

livelast check 5 days ago
100%valid x402 answers, 72 h
sharedUSDC received on Base, 7 days
11distinct payers, 7 days
58.3score (0-100)

Paid endpoints

MethodEndpointPriceNetworks
POSTjson-suite.underscoredone.com/json
Every agent and developer hits broken or confusing JSON. This tool handles the common headaches in one place: check whether JSON is valid with the exact error l
$0.01Base, Solana

Latest checks

WhenEndpointHTTPmsResult
5 days agojson-suite.underscoredone.com/json402318valid x402 v2 terms

Income on Base (7 days)

This provider's payout address is shared by several providers, so its income is not shown as its own.

Is this your API?

Add the live badge to your docs:
<a href="https://logicnodes.io/observatory/p/json-suite.underscoredone.com"><img src="https://logicnodes.io/observatory/badge/json-suite.underscoredone.com.svg" alt="x402 status"></a>
x402 status badge
Claim it for free with x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.

Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/json-suite.underscoredone.com