Overview

CHUNKER.CC is an AI-native document chunking API with micropayments on Solana. Upload documents and receive semantically chunked text optimized for RAG pipelines and LLM context windows.

Pricing.Matrix

Authentication

Demo Tier (Free)

No authentication required. Simply POST your file to the endpoint.

Paid Tiers (Standard & Professional)

Requires USDC payment on Solana. Payment flow:

1. Connect Phantom wallet to the web interface
2. Send USDC to the payment address (automatic)
3. Transaction signature is included in X-PAYMENT header
4. Backend verifies payment on-chain before processing

API.Endpoints

curl https://api.adepti.cc/

curl https://api.adepti.cc/health

// Response
{ "status": "healthy", "network": "solana-mainnet" }

curl -X POST https://api.adepti.cc/chunk/demo \
  -F "file=@document.txt"

curl -X POST https://api.adepti.cc/chunk/standard \
  -H "X-PAYMENT: 5K4t...signature..." \
  -F "file=@document.txt"

curl -X POST https://api.adepti.cc/chunk/professional \
  -H "X-PAYMENT: 5K4t...signature..." \
  -F "file=@document.pdf" \
  -F "document_summary=This document covers..."

Response.Format

All chunking endpoints return the same response structure:

{
  "success": true,
  "tier": "standard",
  "total_chunks": 12,
  "metadata": {
    "filename": "document.txt",
    "content_type": "text/plain",
    "size_bytes": 15420,
    "estimated_pages": 3
  },
  "chunks": [
    {
      "text": "First chunk content...",
      "metadata": {
        "chunk_index": 0,
        "char_count": 1024
      }
    },
    {
      "text": "Second chunk content...",
      "metadata": {
        "chunk_index": 1,
        "char_count": 987
      }
    }
  ],
  "payment": {
    "amount": 1000,
    "asset": "USDC",
    "network": "solana-mainnet"
  }
}

Error.Handling

402 Payment Required Response

{
  "error": "Payment Required",
  "paymentRequirements": {
    "x402Version": 1,
    "scheme": "exact",
    "network": "solana-mainnet",
    "maxAmountRequired": "1000",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "payTo": "8hTm...dWT",
    "description": "Standard tier sentence-aware chunking"
  }
}