Unicode Escape/Unescape API POST

About the Unicode Escape/Unescape API

Unicode Escape/Unescape works by converting characters to their Unicode escape sequence representation (\uXXXX format) or decoding escape sequences back to original characters. Properly handles surrogate pairs for emojis and special characters.

What people use it for

JSON Processing

Escape Unicode characters in JSON strings for safe transmission and storage

Code Generation

Generate Unicode escape sequences for use in source code, configuration files, or string literals

Data Migration

Convert Unicode characters to escape sequences when migrating between systems with different encoding support

Debugging

View Unicode escape sequences of characters to debug encoding issues and identify problematic characters

Ways to call it

One endpoint, many ways in — REST with JSON, XML, YAML and CSV, plus GraphQL and an MCP interface for AI agents.

JSON

Default REST response

XML

Markup format

YAML

Human-readable

CSV

Tabular export

Beta

GraphQL

Query language

New

MCP

For AI agents

Request parameters — POST /v1/unicodeescape

Sent as JSON in the request body. Premium parameters are accepted on every plan but only take effect on plans that include them. Anything not listed here is dropped rather than passed through.

Required

Optional

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curl -X POST "https://api.apiverve.com/v1/unicodeescape" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Hello World","action":"escape"}'

Authentication

Send your key in the x-api-key header. That is the only auth step — no token exchange, and no per-endpoint scope to configure.

Response — POST /v1/unicodeescape

Every APIVerve endpoint returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape.

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{
  "status": "ok",
  "error": null,
  "data": {
    "action": "escape",
    "original": "Hello World",
    "escaped": "\\u0048\\u0065\\u006C\\u006C\\u006F\\u0020\\u0057\\u006F\\u0072\\u006C\\u0064",
    "character_count": 11,
    "unicode_points": [
      {
        "char": "H",
        "unicode": "\\u0048",
        "codepoint": "U+0048"
      },
      {
        "char": "e",
        "unicode": "\\u0065",
        "codepoint": "U+0065"
      },
      {
        "char": "l",
        "unicode": "\\u006C",
        "codepoint": "U+006C"
      },
      {
        "char": "l",
        "unicode": "\\u006C",
        "codepoint": "U+006C"
      },
      {
        "char": "o",
        "unicode": "\\u006F",
        "codepoint": "U+006F"
      },
      {
        "char": " ",
        "unicode": "\\u0020",
        "codepoint": "U+0020"
      },
      {
        "char": "W",
        "unicode": "\\u0057",
        "codepoint": "U+0057"
      },
      {
        "char": "o",
        "unicode": "\\u006F",
        "codepoint": "U+006F"
      },
      {
        "char": "r",
        "unicode": "\\u0072",
        "codepoint": "U+0072"
      },
      {
        "char": "l",
        "unicode": "\\u006C",
        "codepoint": "U+006C"
      },
      {
        "char": "d",
        "unicode": "\\u0064",
        "codepoint": "U+0064"
      }
    ]
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Response headers

Every response carries your balance, so your own code always knows where it stands without polling anything. All four are exposed to browsers through CORS.

Errors

Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change.

What a call costs — 2 credits per call

Credits are shared across every APIVerve API — one balance, one key, one bill. Failed requests never count against it, so a rejected input costs nothing.

Calls are what the credits buy at this API's rate — spend them here, on any of the other APIs, or across both. Nothing is reserved per endpoint.

Zero-code embed — one snippet, no backend

Drop an interactive Unicode Escape/Unescape form onto any page. The widget calls the API for you, so no key ever appears in your markup and there is nothing to deploy.

Changelog — Unicode Escape/Unescape API

Every change to this endpoint, newest first. Breaking changes ship as a new version and the previous one keeps serving — response fields are added, never removed or retyped in place, so an integration written against v1 keeps working.

Currently v1