image.compress

Compress an image. POST exactly one of { url } or { imageBase64 }, plus optional { format?: auto|png|jpeg|webp|avif (default auto = keep input format), quality?: 1-100 (default 75), lossy?: bool (default true), effort?: 1-10 (default 6) }. Returns compressed image bytes directly with X-2s-* headers: Original-Bytes, Compressed-Bytes, Saved-Percent, Output-Format, Source-Format, Source-Width, Source-Height, Process-Ms. Limits: 5MB URL fetch, ~3MB inline body, 4096 × 4096 input pixels. Animated GIF input becomes animated WebP when format=webp or auto.

price
$0.0024 USDC per call
method
POST/api/image/compress
payment
x402 v2 · EIP-3009 transferWithAuthorization · USDC on Base mainnet
auth
None. Sign the payment, retry with PAYMENT-SIGNATURE.
tier
Tier 0 — no paid upstream

Parameters

NameTypeDescription
urlstring
max 2048 chars · uri
imageBase64string
max 4400000 chars
formatstring
one of: auto | png | jpeg | webp | avif
qualityinteger
min 1 · max 100
lossyboolean
effortinteger
min 1 · max 10

Code samples

cURLbash
# 1. Probe the endpoint with no auth — receive 402 with PaymentRequirements
curl -sS -X POST 'https://2s.io/api/image/compress' \
  -H 'Content-Type: application/json' \
  -d '{"url":"https://example.com","imageBase64":"example","format":"auto","quality":1,"lossy":false,"effort":1}'

# 2. Sign the EIP-3009 transferWithAuthorization for the advertised price +
#    payTo from the 402 envelope, then retry with PAYMENT-SIGNATURE:
curl -sS -X POST 'https://2s.io/api/image/compress' \
  -H 'Content-Type: application/json' \
  -H 'PAYMENT-SIGNATURE: <base64-json-payload>' \
  -d '{"url":"https://example.com","imageBase64":"example","format":"auto","quality":1,"lossy":false,"effort":1}'

# Or just use the canonical runner — it handles the whole loop:
#   EVM_PRIVATE_KEY=0x... node --env-file=.env.local \
#     --experimental-strip-types scripts/x402-pay.ts \
#     'https://2s.io/api/image/compress'
TypeScript / Node — @2sio/sdktypescript
import { TwoS } from '@2sio/sdk'

const client = new TwoS({
  privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})

const result = await client.image.compress({
  "url": "https://example.com",
  "imageBase64": "example",
  "format": "auto",
  "quality": 1,
  "lossy": false,
  "effort": 1
})

console.log('endpoint:', result.endpoint)
console.log('cost:', result.costUsd, 'USDC')
console.log('tx:', result.settlement?.txHash)
console.log('data:', result.data)
Python — 2siopython
import os
from twosio import TwoS

client = TwoS(private_key=os.environ["EVM_PRIVATE_KEY"])

result = client.image.compress(url="https://example.com", imageBase64="example", format="auto", quality=1, lossy=False, effort=1)

print("endpoint:", result.endpoint)
print("cost:", result.cost_usd, "USDC")
print("tx:", (result.settlement or {}).get("tx_hash"))
print("data:", result.data)
MCP — Claude Desktop / AgentKit / any MCP hostjson
// 1. Add @2sio/mcp to your MCP host config (Claude Desktop example below).
//    EVM_PRIVATE_KEY funds x402 payments per call.

// claude_desktop_config.json
{
  "mcpServers": {
    "2sio": {
      "command": "npx",
      "args": ["-y", "@2sio/mcp"],
      "env": { "EVM_PRIVATE_KEY": "0x..." }
    }
  }
}

// 2. Once the server is running, agents call this tool via standard MCP:

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "image.compress",
    "arguments": {
      "url": "https://example.com",
      "imageBase64": "example",
      "format": "auto",
      "quality": 1,
      "lossy": false,
      "effort": 1
    }
  }
}

Discovery

2s.io is x402-native. Every call is paid per-request from a USDC-funded EVM wallet on Base — no signup, no API keys, no monthly fees. Source code: github.com/2s-io/sdk.