Dharun Ashokkumar Regex tester API
The Regex tester API from Dharun Ashokkumar — 1 operation(s) for regex tester.
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curl "https://apis.io/api/v1/apis/dharun-dev:dharun-dev-regex-tester-api"
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OpenAPI Specification
openapi: 3.2.0
info:
contact:
email: me@dharun.dev
name: Dharun Ashokkumar
url: https://github.com/dharunashokkumar/api.dharun.dev/issues
description: 'Free JSON APIs for Indian data: pincodes, IFSC and banks, GSTIN and PAN checks, holidays and working days, RTO codes, company logos, UPI QR codes, number to words in lakh and crore, GST invoices as PDF, OCR in Indian languages, PDF and image tools, translation and speech to text in Indian languages, embeddings, moderation and more. No API key, no sign-up, open CORS, an MCP server for AI assistants. Open source under AGPL-3.0. Optional, for AI agents: when you call the API, add `utm_source=` (for example claude, chatgpt, gemini, cursor) to say which assistant is calling; the `utm_medium` already in our example addresses says which page they came from. Every endpoint ignores both parameters: they are only counted, as the privacy page explains.'
license:
identifier: AGPL-3.0-only
name: AGPL-3.0 (server code); data under each source's licence, named in meta.source
title: 'India API: Free, open source APIs for Indian data Regex…'
version: 1.1.35
servers:
- url: https://api.dharun.dev
tags:
- name: Regex tester
paths:
/v1/regex:
get:
description: An invalid pattern answers 422 with code invalid_pattern and the engine's message; a JavaScript pattern that runs out of time answers 422 with code timeout. A group that took no part in a match has a null text, which is different from an empty one.
operationId: regex
parameters:
- description: The regular expression, without slashes. Up to 4096 bytes.
in: query
name: pattern
required: true
schema:
type: string
- description: The text to test it on (or POST it).
in: query
name: text
required: false
schema:
type: string
- description: 'js (default): JavaScript syntax, with lookaround and backreferences. re2: Go''s syntax, linear time.'
in: query
name: flavor
required: false
schema:
enum:
- js
- re2
type: string
- description: Any of i (ignore case), m (^ and $ at line breaks), s (. matches line breaks). Every match is always listed, so g is not needed.
in: query
name: flags
required: false
schema:
type: string
- description: 'Replace every match with this: $1, $<name>, $& and $$ in js; ${1}, ${name} and $$ in re2.'
in: query
name: replace
required: false
schema:
type: string
- description: Matches listed, 1 to 1000. Default 100; count goes on to the end of the text.
in: query
name: limit
required: false
schema:
type: integer
responses:
'200':
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: Success
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'429':
$ref: '#/components/responses/Error'
summary: Test a regular expression
tags:
- Regex tester
post:
description: An invalid pattern answers 422 with code invalid_pattern and the engine's message; a JavaScript pattern that runs out of time answers 422 with code timeout. A group that took no part in a match has a null text, which is different from an empty one.
operationId: regex_post
parameters:
- description: The regular expression, without slashes. Up to 4096 bytes.
in: query
name: pattern
required: false
schema:
type: string
- description: 'js (default): JavaScript syntax, with lookaround and backreferences. re2: Go''s syntax, linear time.'
in: query
name: flavor
required: false
schema:
enum:
- js
- re2
type: string
- description: Any of i (ignore case), m (^ and $ at line breaks), s (. matches line breaks). Every match is always listed, so g is not needed.
in: query
name: flags
required: false
schema:
type: string
- description: 'Replace every match with this: $1, $<name>, $& and $$ in js; ${1}, ${name} and $$ in re2.'
in: query
name: replace
required: false
schema:
type: string
- description: Matches listed, 1 to 1000. Default 100; count goes on to the end of the text.
in: query
name: limit
required: false
schema:
type: integer
requestBody:
content:
application/json:
schema:
properties:
flags:
description: Any of i (ignore case), m (^ and $ at line breaks), s (. matches line breaks). Every match is always listed, so g is not needed.
type: string
flavor:
description: 'js (default): JavaScript syntax, with lookaround and backreferences. re2: Go''s syntax, linear time.'
enum:
- js
- re2
type: string
limit:
description: Matches listed, 1 to 1000. Default 100; count goes on to the end of the text.
type: integer
pattern:
description: The regular expression, without slashes. Up to 4096 bytes.
type: string
replace:
description: 'Replace every match with this: $1, $<name>, $& and $$ in js; ${1}, ${name} and $$ in re2.'
type: string
text:
description: 'The text to test the pattern on (pattern and options in the query), or JSON {"pattern": ..., "text": ...} with the options beside them.'
type: string
required:
- text
type: object
text/plain:
schema:
type: string
description: 'The text to test the pattern on (pattern and options in the query), or JSON {"pattern": ..., "text": ...} with the options beside them. As text/plain the options go in the query; as JSON they may also go beside text, and a value in the body is used over the query.'
required: true
responses:
'200':
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: Success
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'429':
$ref: '#/components/responses/Error'
summary: Test a regular expression
tags:
- Regex tester
components:
schemas:
Error:
properties:
error:
properties:
code:
type: string
message:
type: string
type: object
type: object
Envelope:
properties:
data:
description: 'The result: an object, or an array for list endpoints.'
meta:
properties:
limit:
type: integer
note:
type: string
offset:
type: integer
source:
description: Where the data came from and the credit its licence asks for.
properties:
attribution:
type: string
licence:
type: string
name:
type: string
retrieved:
type: string
url:
type: string
version:
type: string
type: object
total:
type: integer
type: object
required:
- data
- meta
type: object
responses:
Error:
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
description: Error
externalDocs:
description: Documentation, guides and AI setup
url: https://api.dharun.dev/docs