countdown.gif

Animated countdown GIF from the current UTC time to endDate. Always uncached. Supports 5 templates (default, minimal, neon, retro, corporate) and full customization: colors, fonts, dimensions, padding, cell padding, labels, dividers. Animates for `seconds` frames at `fps`.

price

$0.0060 USDC per call

method

GET/api/countdown/gif

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

Name	Type	Description
`endDate`required	string	date-time
`template`	string	one of: default \| minimal \| neon \| retro \| corporate
`seconds`	integer	min 1 · max 60
`fps`	integer	min 1 · max 10
`width`	integer	min 200 · max 1600
`height`	integer	min 80 · max 800
`padding`	integer	min 0 · max 200
`cellPadding`	integer	min 0 · max 200
`digitFontSize`	integer	min 20 · max 300
`labelFontSize`	integer	min 6 · max 80
`labelPaddingY`	integer	min 0 · max 60
`digitPaddingY`	integer	min -60 · max 60
`letterSpacing`	number	min 0 · max 20
`bg`	string	max 40 chars
`fg`	string	max 40 chars
`labelColor`	string	max 40 chars
`dividerColor`	string	max 40 chars
`digitFont`	string	one of: mono \| sans
`labelFont`	string	one of: mono \| sans
`digitWeight`	string	one of: regular \| bold
`showLabels`
`showDays`
`dividerChar`	string	min 1 chars · max 3 chars
`expiredText`	string	min 1 chars · max 30 chars
`labelDays`	string	min 1 chars · max 12 chars
`labelHours`	string	min 1 chars · max 12 chars
`labelMinutes`	string	min 1 chars · max 12 chars
`labelSeconds`	string	min 1 chars · max 12 chars

Code samples

cURLbash

# 1. Probe with no auth → 402 envelope with PaymentRequirements
curl -sS 'https://2s.io/api/countdown/gif?endDate=example&template=default&seconds=1&fps=1&width=200&height=80&padding=0&cellPadding=0&digitFontSize=20&labelFontSize=6&labelPaddingY=0&digitPaddingY=-60&letterSpacing=0&bg=example&fg=example&labelColor=example&dividerColor=example&digitFont=mono&labelFont=mono&digitWeight=regular&showLabels=false&showDays=false&dividerChar=example&expiredText=example&labelDays=example&labelHours=example&labelMinutes=example&labelSeconds=example'

# 2. Sign + retry with PAYMENT-SIGNATURE:
curl -sS 'https://2s.io/api/countdown/gif?endDate=example&template=default&seconds=1&fps=1&width=200&height=80&padding=0&cellPadding=0&digitFontSize=20&labelFontSize=6&labelPaddingY=0&digitPaddingY=-60&letterSpacing=0&bg=example&fg=example&labelColor=example&dividerColor=example&digitFont=mono&labelFont=mono&digitWeight=regular&showLabels=false&showDays=false&dividerChar=example&expiredText=example&labelDays=example&labelHours=example&labelMinutes=example&labelSeconds=example' \
  -H 'PAYMENT-SIGNATURE: <base64-json-payload>'

# Or use the canonical runner (handles probe → sign → retry):
#   EVM_PRIVATE_KEY=0x... node --env-file=.env.local \
#     --experimental-strip-types scripts/x402-pay.ts \
#     'https://2s.io/api/countdown/gif?endDate=example&template=default&seconds=1&fps=1&width=200&height=80&padding=0&cellPadding=0&digitFontSize=20&labelFontSize=6&labelPaddingY=0&digitPaddingY=-60&letterSpacing=0&bg=example&fg=example&labelColor=example&dividerColor=example&digitFont=mono&labelFont=mono&digitWeight=regular&showLabels=false&showDays=false&dividerChar=example&expiredText=example&labelDays=example&labelHours=example&labelMinutes=example&labelSeconds=example'

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.countdown.gif({
  "endDate": "example",
  "template": "default",
  "seconds": 1,
  "fps": 1,
  "width": 200,
  "height": 80,
  "padding": 0,
  "cellPadding": 0,
  "digitFontSize": 20,
  "labelFontSize": 6,
  "labelPaddingY": 0,
  "digitPaddingY": -60,
  "letterSpacing": 0,
  "bg": "example",
  "fg": "example",
  "labelColor": "example",
  "dividerColor": "example",
  "digitFont": "mono",
  "labelFont": "mono",
  "digitWeight": "regular",
  "showLabels": false,
  "showDays": false,
  "dividerChar": "example",
  "expiredText": "example",
  "labelDays": "example",
  "labelHours": "example",
  "labelMinutes": "example",
  "labelSeconds": "example"
})

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.countdown.gif(endDate="example", template="default", seconds=1, fps=1, width=200, height=80, padding=0, cellPadding=0, digitFontSize=20, labelFontSize=6, labelPaddingY=0, digitPaddingY=-60, letterSpacing=0, bg="example", fg="example", labelColor="example", dividerColor="example", digitFont="mono", labelFont="mono", digitWeight="regular", showLabels=False, showDays=False, dividerChar="example", expiredText="example", labelDays="example", labelHours="example", labelMinutes="example", labelSeconds="example")

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": "countdown.gif",
    "arguments": {
      "endDate": "example",
      "template": "default",
      "seconds": 1,
      "fps": 1,
      "width": 200,
      "height": 80,
      "padding": 0,
      "cellPadding": 0,
      "digitFontSize": 20,
      "labelFontSize": 6,
      "labelPaddingY": 0,
      "digitPaddingY": -60,
      "letterSpacing": 0,
      "bg": "example",
      "fg": "example",
      "labelColor": "example",
      "dividerColor": "example",
      "digitFont": "mono",
      "labelFont": "mono",
      "digitWeight": "regular",
      "showLabels": false,
      "showDays": false,
      "dividerChar": "example",
      "expiredText": "example",
      "labelDays": "example",
      "labelHours": "example",
      "labelMinutes": "example",
      "labelSeconds": "example"
    }
  }
}

Discovery

/api/directory — full catalog of every endpoint
/openapi.json — OpenAPI 3.1 spec (per-op x-payment-info, x402Payment security)
/.well-known/x402 — machine-readable service descriptor for x402-aware crawlers
/.well-known/mcp/server-card.json — MCP SEP-1649 server card
/llms.txt — plain-text manifest for LLM ingestion

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.