Discover / regex.openverbs.com

Find matches and capture groups

■ Challenge detected

Find the first match (or all matches with all=true) of a RE2 pattern, returning each match's text, start/end offsets, and numbered and named capture groups. No match is a successful 200 with an empty match list.

x402
Base
USDC

Listed price: $0.004
Challenge detected: 10 of the last 10 checks
Median response: 178 ms
Last checked: 17 Oct, 08:59 UTC
In our index since: 26 Sept 2026

Endpoint

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

4 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://regex.openverbs.com/v1

POST/replace$0.004Replace matches of a RE2 pattern with a replacement string. Replaces all matches by default (set all=false for first-only). The replacement may reference capture groups with $1, $2 or ${name}. Returns the resulting string.
POST/test$0.004Test whether a RE2 pattern matches anywhere in the input. Returns { matched }. RE2 guarantees linear-time evaluation, so this is safe against catastrophic backtracking. An invalid pattern is a clean 400; no match is a successful 200.
POST/match$0.004Find the first match (or all matches with all=true) of a RE2 pattern, returning each match's text, start/end offsets, and numbered and named capture groups. No match is a successful 200 with an empty match list.
POST/split$0.004Split the input into parts on each match of a RE2 pattern. An optional limit caps the number of parts (0 = unlimited). Returns the parts array and its count.

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

Showing 4 of 4 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/regex.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.17 Oct 2026

All 10 checks

When (UTC)	Result	HTTP	Response
17 Oct, 08:59 UTC	Challenge detected	402	581ms
16 Oct, 08:13 UTC	Challenge detected	402	178ms
14 Oct, 21:46 UTC	Challenge detected	402	193ms
13 Oct, 10:39 UTC	Challenge detected	402	166ms
11 Oct, 10:02 UTC	Challenge detected	402	173ms
10 Oct, 00:46 UTC	Challenge detected	402	174ms
8 Oct, 21:32 UTC	Challenge detected	402	180ms
7 Oct, 18:39 UTC	Challenge detected	402	174ms
6 Oct, 16:01 UTC	Challenge detected	402	178ms
30 Sept, 05:03 UTC	Challenge detected	402	177ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 17 Oct, 08:59 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 Find matches and capture groups?

Its listed price is $0.004.

What payment terms does Find matches and capture groups 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 Find matches and capture groups listed?

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

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