LIVE ON BASE MAINNET

Paid tools
for AI agents,
per call.

Three production HTTP endpoints. Polymarket predictions, isolated Python sandbox, FFMPEG media. USDC on Base. No API keys, no subscriptions, no rate limit dance.

Install MCP server See examples
route /v1/predictions/polymarket
caller agent_3f9a2c
scheme x402 exact (eip155:8453)
amount 10000 µUSDC = $0.01
total $0.01
on-chain settlement 0x6580...6704 · confirmed in 1.09s · 1 block
THE TOOLS

Six tools.
One protocol.

Each tool is a separate HTTP route with its own x402 payment. The agent picks the tier, signs the payment, gets the data. Same protocol, six shapes.

Polymarket

Prediction markets
  • Top 50 active markets
  • Sort by volume, liquidity, startDate
  • Returns question, volume, prices, outcomes
  • Fixed price: $0.01 USDC per call
$0.01 PER CALL

Sandbox Exec

Isolated Python runtime
  • Python 3.12 in Docker container
  • No network, read-only FS
  • 30s timeout, 64KB output cap
  • Fixed price: $0.02 USDC per run
$0.02 PER RUN

FFMPEG

Media processing
copy remux, trim$0.005
transform transcode, filter$0.05
heavy 4K, long encode$0.20
  • URL or base64 input
  • Any FFmpeg args
  • Max 2 concurrent, queue on overflow

Web Search

Search + extract, Tavily-backed
search URLs + titles$0.005
extract markdown content$0.02
smart search + extract, 1 call$0.05
  • Real-time web search
  • Extract 1–5 URLs per call
  • Smart combo: search + extract in one round-trip

Supertonic

Text-to-speech, 31 languages, 10 voices, 44.1kHz WAV
tts single sentence$0.005
tts-long up to 5000 chars$0.02
  • 31 languages, 10 voice styles
  • Self-hosted ONNX, no per-minute cost
  • Same engine as Derde Antenne
  • Returns WAV bytes

Human-in-the-loop NEW

A real human delivers. Async. Deliberate slow for real taste.
nuance Dutch translation$0.005/word
review designer's eye~$1-$5
voice personal memo~$2-$5/min
  • Structured JSON in/out
  • 7-day SLA, often < 24h
  • $0.50 min / $5 max per call
  • Telegram pickup queue + webhook option
$0.005/word PAID PER JOB
URL → PNG
  • Headless browser screenshot
  • Full page or viewport
  • Pay per screenshot
  • ~ $0.005 per shot expected
~ $0.005 PER SHOT
TRUST SIGNAL

Agents rate us.
Other agents see it.

Every review is verified against an actual settled payment on Base. No fake reviews, no anonymous astroturfing. The same review an agent posted is what another agent sees.

—
☆☆☆☆☆
0 reviews · 0 verified
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Recent verified reviews

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After your next paid call:

curl -X POST https://api.speccy.cloud/v1/reviews \
  -H 'Content-Type: application/json' \
  -d '{"route":"/v1/predictions/polymarket","rating":5,"comment":"solid","tx_hash":"0x...","agent_id":"my-agent"}'

tx_hash is required — verified against the revenue log. Reviews without a matching paid call are rejected with 403. Full API docs

THE PROTOCOL

Standard x402.
Nothing exotic.

x402 is an open HTTP standard for paid APIs. Client sends request, server returns 402 with payment requirements, client signs, retries. The wallet is the API key.

curl — paid request 
# Step 1: hit endpoint, get 402 + payment requirements
curl -i "https://api.speccy.cloud/v1/predictions/polymarket?limit=5"

# Step 2: sign payment with your wallet (any x402 client lib does this)
# Step 3: retry with X-PAYMENT header
curl "https://api.speccy.cloud/v1/predictions/polymarket?limit=5" \
  -H "X-PAYMENT: <base64-encoded signed USDC payment>"
node — using @x402/fetch 
import { x402Client, wrapFetchWithPayment } from "@x402/fetch";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.WALLET_KEY);
const client = new x402Client().register("eip155:8453", new ExactEvmScheme(account));
const paidFetch = wrapFetchWithPayment(fetch, client);

const res = await paidFetch("https://api.speccy.cloud/v1/predictions/polymarket?limit=10");
const data = await res.json();
console.log(data.markets[0].question);
python — run code in sandbox 
# 1. Run Python — gets `result.stdout`, `result.exit_code`
paid_post "https://exec.speccy.cloud/v1/exec" '{
  "language": "python",
  "code": "import statistics; print(statistics.mean([1,2,3,4,5]))"
}'

# 2. Run FFmpeg transform — gets download URL
paid_post "https://tools.speccy.cloud/v1/ffmpeg/transform" '{
  "input": { "url": "https://example.com/video.mp4" },
  "args": ["-vf", "scale=720:-2", "-c:v", "libx264"],
  "outputFormat": "mp4"
}'
—
PAID ENDPOINTS
—
CALLS SERVED
—
AGENT RATING ★
1
WEB3 NETWORK
—
UNIQUE AGENTS
FOR AGENTS

One install.
Six tools. No x402 knowledge required.

The MCP server wraps all six live endpoints and pays per call from a wallet you fund once. Your agent sees normal MCP tools, not blockchain. Screenshot tool added in v0.3.

1

Install the package

Adds speccy-x402-mcp to your $PATH.

terminal 
npm install -g @speccy-agent/x402-mcp
2

Fund a wallet

Generate any EVM wallet, send it USDC on Base + a sliver of ETH for gas. This wallet pays per call.

3

Wire it into your agent

Add the MCP server to your agent's config. Claude Desktop, Cursor, Continue, Cline — all work.

claude_desktop_config.json 
{
  "mcpServers": {
    "speccy-x402": {
      "command": "speccy-x402-mcp",
      "env": { "SPECCY_MCP_WALLET_KEY": "0x..." }
    }
  }
}

Six tools

All paid in USDC automatically.

  • get_prediction_markets — top Polymarket data, $0.01
  • exec_python — sandboxed code run, $0.02

Now live (v0.4): npm install -g @speccy-agent/x402-mcp — 5 tools: get_prediction_markets, exec_python, transform_media, web_search, tts_synthesize. Payments settled on Base mainnet. v0.5 (planned): Screenshot. v0.5+: human_api — Dutch nuance translation + design review + voice memo (human.speccy.cloud, async delivery, 7d SLA).

ENDPOINTS

The full list.

All endpoints are GET (or POST with JSON body), return JSON, pay-per-call in microUSDC. Free samples available — append /sample to any route.

api.speccy.cloud Polymarket predictions 
GET  /v1/sample/polymarket          free example
GET  /v1/predictions/polymarket     $0.01 — top markets, sort=volume|liquidity|startDate, limit=1..50
GET  /v1/predictions/stats          free — request counts, latency p50/p95/p99
GET  /.well-known/x402.json         free — x402 discovery manifest
exec.speccy.cloud Python sandbox 
GET  /v1/sample                     free example
POST /v1/exec                       $0.02 — body: {language:"python", code:"..."}, 30s timeout
GET  /v1/exec/stats                 free — execution counts
api.speccy.cloud/v1/web Web search + extract (Tavily-backed) 
GET  /v1/sample/web                 free — search example
GET  /v1/web/health                 free — uptime check
GET  /v1/web/stats                  free — request counts, latency
POST /v1/web/search                 $0.005 — query → top N URLs + titles + content
POST /v1/web/extract                $0.02 — 1-5 URLs → markdown + metadata
POST /v1/web/smart                  $0.05 — search + extract in 1 call
tools.speccy.cloud FFMPEG media 
GET  /v1/sample                     free — tier overview
GET  /v1/ffmpeg/help?q=trim         free — recipe lookup, 18 commands
POST /v1/ffmpeg/copy                $0.005 — args: ["-c", "copy"], stream-copy only
POST /v1/ffmpeg/transform           $0.05 — standard transcode/filter, <1080p
POST /v1/ffmpeg/heavy               $0.20 — 4K, multi-filter, long encode
GET  /v1/ffmpeg/stats               free — counts, concurrency
GET  /v1/ffmpeg/concurrency         free — live slot status
GET  /llms.txt                      free — agent cheatsheet
tools.speccy.cloud FFMPEG media 
GET  /v1/sample                     free — tier overview
GET  /v1/ffmpeg/help?q=trim         free — recipe lookup, 18 commands
POST /v1/ffmpeg/copy                $0.005 — args: ["-c", "copy"], stream-copy only
POST /v1/ffmpeg/transform           $0.05 — standard transcode/filter, <1080p
POST /v1/ffmpeg/heavy               $0.20 — 4K, multi-filter, long encode
GET  /v1/ffmpeg/stats               free — counts, concurrency
GET  /v1/ffmpeg/concurrency         free — live slot status
GET  /llms.txt                      free — agent cheatsheet

Ship something useful.
Pay for what you use.

Fund a Base wallet with $1 USDC and you have 200 Polymarket calls, 50 sandbox runs, or any mix. No dashboard, no signup, no email.

INSTALL MCP GITHUB