oanor
Sign up free
Marketplace Pricing Features Sign in

API · /json-api

JSON API

healthy 4,067 Subscribers

A fast, fully-local JSON and CSV toolkit: validate JSON (with a clear error message, type and size), pretty-print and format it (with optional deep key-sorting), minify it (reporting bytes saved), and convert between CSV and JSON — RFC-4180 CSV parsing with automatic value typing, and JSON arrays to CSV. Every endpoint accepts input via the query string or the request body (up to 1 MB). Pure server-side compute, no third-party upstream, so responses are instant and always available. Ideal for data pipelines, ETL, webhooks, config tooling and developer utilities.

#json #csv #validate #format #minify #converter #dev-tools
api.oanor.com/json-api
Get an API key Try in playground → Contact provider

Machine-readable spec so AI agents can integrate this API.

/api/json-api/openapi.json
/api/json-api/llms.txt

Discovery: GET /api/index.json lists every API.

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
68 ms
Server probes · 24h
Subscribers
4,067
active
Total calls
40
last 7 days
status Full status page → · 40 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 14,000 calls / month
  • 3 requests / second
  • Hard cap (429 above quota, no overage)
  • 14,000 calls/month, 3 req/s
  • All endpoints: validate, format, minify, CSV↔JSON
  • 1 MB max input per request
  • No credit card
Sign in to subscribe

Basic

€3.00 /month

  • 300,000 calls / month
  • 12 requests / second
  • Hard cap (429 above quota, no overage)
  • 300,000 calls/month, 12 req/s
  • All format/validate + CSV↔JSON endpoints
  • Commercial use allowed
  • Email support
Sign in to subscribe

Pro

€12.00 /month

  • 1,600,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,600,000 calls/month, 40 req/s
  • Full toolkit incl. deep key-sort & RFC-4180 typing
  • Priority email support
  • Commercial use allowed
Sign in to subscribe

Mega

€33.00 /month

  • 8,000,000 calls / month
  • 120 requests / second
  • Hard cap (429 above quota, no overage)
  • 8,000,000 calls/month, 120 req/s
  • All endpoints, highest throughput
  • Priority support
  • Commercial use allowed
Sign in to subscribe

Built by

P
PremiumApi

Related APIs

Other APIs with overlapping tags.

JSONPath API

Query and extract from JSON with JSONPath, server-side. Run any JSONPath expression — wildcards, recursive descent, array slices and filter expressions like [?(@.price>10)] — against a JSON document and get back the matched values, the normalized paths and JSON Pointers of every match, or just the first match. Filter expressions are evaluated in a safe sandbox with no access to globals, and inputs can be sent as a JSON POST body or a query parameter. Pure local compute with no third-party upstream, so responses are instant and the service is always available. Ideal for no-code and automation platforms, ETL and data pipelines, API integrations, testing and config extraction.

api.oanor.com/jsonpath-api

YAML API

Convert, validate and tidy YAML through a fast, fully-local API. Turn YAML into JSON (including multi-document streams) or JSON into clean YAML with optional key sorting and custom indentation, validate a document and get the exact line and column of any syntax error with a context snippet, or reformat and normalize existing YAML. Inputs can be sent as a raw text/plain body, a JSON field or a query parameter; outputs are tidy JSON. Pure server-side compute with no third-party upstream, so responses are instant and the service is always available. Ideal for DevOps and CI/CD, configuration and infrastructure-as-code tooling, no-code platforms, editors and data pipelines.

api.oanor.com/yaml-api

JSON Schema API

Validate JSON against JSON Schema, server-side. Check any data against a schema (Draft-07 or 2020-12) and get a clear pass/fail plus a detailed list of every error with its instance path, failing keyword and message; verify that a schema itself is well-formed; or infer a starter JSON Schema automatically from a sample document, complete with detected formats like email, URI and date. Built on the battle-tested Ajv engine with full format validation. Every endpoint accepts GET (JSON-encoded parameters) or a JSON POST body and runs entirely locally with no third-party upstream, so responses are instant and the service is always available. Ideal for API request/response validation, form and data-entry checks, ETL and data-quality pipelines, no-code platforms and contract testing.

api.oanor.com/jsonschema-api

XML API

A fast, fully-local XML toolkit: convert XML to JSON and JSON to XML with configurable attribute handling, validate XML well-formedness with line and column error details, and pretty-print XML while preserving element order. Every endpoint accepts input via the query string or the request body, up to 2 MB. Pure server-side compute, no third-party upstream, so responses are instant and always available. Ideal for system integrations, SOAP and legacy interop, RSS and sitemap processing, config tooling and data pipelines.

api.oanor.com/xml-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for JSON API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call JSON API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for JSON API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does JSON API cost?
JSON API has a free tier with 100 calls / month. Paid plans start at €3.00 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is JSON API GDPR-compliant?
All requests to JSON API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Pick an endpoint from the list on the left to see its details and try it.

Code snippets

Sign up to get an API key, then call any path under your slug.

curl https://api.oanor.com/json-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/json-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/json-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/json-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

Ratings

Sign in to rate.

No reviews yet.

Discussion

Ask questions, share usage tips, get answers from the provider and other developers. Public — anyone can read.

Sign in to start a thread or reply.

Sign in

New thread

/ 4000

📌 Pinned 🔒 Locked

·

· ·

/ 4000

🔒 This thread is locked — no new replies.

  • No threads yet — start the discussion.

Support

Private 1:1 support with the provider — billing questions, integration issues, account problems. Only you and the provider team can see these threads.

Sign in to open a support ticket.

Sign in

Open new ticket

Describe what you need help with. The provider team gets an email and replies on the ticket page.

  • No tickets yet for this API.

Subscription active — calls can start immediately.

Send your first request —

Subscription active — copy a snippet and fire off your first call.