Discover / jsonschema.openverbs.com

Infer schema from a sample

■ Challenge detected

Infer a JSON Schema (draft-07) from an example value, walking objects and arrays recursively. Set detectFormat=true to tag strings that look like date-time/date/email/uri/uuid, requireAll=false to leave object properties optional, and additionalProperties=true to allow extra keys.

x402
Base
USDC

Listed price: $0.004
Challenge detected: 9 of the last 9 checks
Median response: 194 ms
Last checked: 16 Oct, 13:59 UTC
In our index since: 26 Sept 2026

Endpoint

curl -i https://jsonschema.openverbs.com/v1/infer
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

2 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://jsonschema.openverbs.com/v1

POST/validate$0.004Validate a JSON value against a JSON Schema (draft-07, with the standard string formats enabled). An invalid schema is rejected as a clean 400 before payment; a valid schema that the data simply fails to satisfy is a successful result with valid=false and a list of errors (path, keyword, message).
POST/infer$0.004Infer a JSON Schema (draft-07) from an example value, walking objects and arrays recursively. Set detectFormat=true to tag strings that look like date-time/date/email/uri/uuid, requireAll=false to leave object properties optional, and additionalProperties=true to allow extra keys.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 2 of 2 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/jsonschema.openverbs.com

Recent checks

30 Sept 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.16 Oct 2026

All 9 checks

When (UTC)	Result	HTTP	Response
16 Oct, 13:59 UTC	Challenge detected	402	194ms
15 Oct, 04:47 UTC	Challenge detected	402	165ms
13 Oct, 20:45 UTC	Challenge detected	402	161ms
11 Oct, 19:34 UTC	Challenge detected	402	223ms
10 Oct, 03:32 UTC	Challenge detected	402	197ms
8 Oct, 21:32 UTC	Challenge detected	402	218ms
7 Oct, 21:31 UTC	Challenge detected	402	163ms
6 Oct, 18:37 UTC	Challenge detected	402	225ms
30 Sept, 17:04 UTC	Challenge detected	402	170ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 16 Oct, 13:59 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for Infer schema from a sample?

Its listed price is $0.004.

What payment terms does Infer schema from a sample advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is Infer schema from a sample listed?

In x402 Bazaar. Superstables first indexed it on 26 Sept 2026.

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