Replace matches of a RE2 pattern with a replacement string
Replace 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.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
468 msmedian answer time
$0.004listed price per call
$0.004price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://regex.openverbs.com/v1/replace
| Category | Code and developer |
|---|---|
| Provider host | regex.openverbs.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.004 | 468 ms |
Example input (from the provider)
{
"body": {
"all": false,
"flags": "example",
"input": "example",
"pattern": "example",
"replacement": "example"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"all": {
"description": "Replace every match. Default true.",
"type": "boolean"
},
"flags": {
"description": "Any of i (case-insensitive), m (multiline ^$), s (dotall). Default none.",
"maxLength": 8,
"type": "string"
},
"input": {
"description": "The subject text.",
"maxLength": 1000000,
"type": "string"
},
"pattern": {
"description": "RE2 regular-expression pattern.",
"maxLength": 4096,
"minLength": 1,
"type": "string"
},
"replacement": {
"description": "Replacement text; supports $1/${name} group references.",
"maxLength": 1000000,
"type": "string"
}
},
"required": [
"pattern",
"input",
"replacement"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}