# Braille Unicode Decoder

> Braille Unicode Decoder is a paid API for AI agents from braille.openverbs.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).

Decodes a Unicode braille string (U+2800–U+28FF) back into readable text, correctly handling capital and number signs.

## Facts

- Endpoint: POST https://braille.openverbs.com/v1/decode
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/braille-unicode-decoder-7503173d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QlQkFCkJOJWgjpkQ0cEzD

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability braille-unicode-decoder-7503173d -d '<json body>'
```

Example prompt: Can you decode this Unicode braille string back to plain text for me: ⠠⠓⠑⠇⠇⠕⠀⠼⠁⠃⠉?

## When to prefer this

Use this endpoint when you have a Unicode braille string (composed of U+2800–U+28FF cells) and need to recover the original plain text, including proper handling of braille capital signs and number indicators. Prefer this over manual lookup or general-purpose text APIs when dealing with programmatically generated or stored braille unicode. It pairs naturally with the sibling encode endpoint on the same service for round-trip conversion.

## Known failure modes

- Non-braille Unicode characters (outside U+2800–U+28FF) trigger a 400 error
- Unmapped or unrecognized braille cell sequences return a 400 error
- Empty or missing 'braille' field causes a validation error
- Malformed JSON body results in a 400 response
- Braille strings using contracted (grade-2) patterns may not decode as expected since only grade-1 is supported

## How this service works

Transcribe a Unicode braille string back to text, honouring capital and number signs. Non-braille or unmapped cells are clean 400s.

## Output

Returns the plain-text string recovered from the Unicode braille input, with capital letters and numbers correctly interpreted based on braille indicator cells. Invalid or unmapped braille cells result in a clean 400 error.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "braille"
     ],
     "properties": {
      "braille": {
       "type": "string",
       "description": "Unicode braille string (U+2800–U+28FF cells)."
      }
     },
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/braille-unicode-decoder-7503173d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from braille.openverbs.com](https://www.zero.xyz/host/braille.openverbs.com/llms.txt)