x402 · BASE · MCP · USDC · get_weather_forecast · search_news · lookup_drug_info · get_sports_scores · search_academic_papers · search_web · get_ecosystem_status · x402 · BASE · MCP · USDC · get_weather_forecast · search_news · lookup_drug_info · get_sports_scores · search_academic_papers · search_web · get_ecosystem_status ·

x402 FACILITATOR · BASE MAINNET · LIVE

THE MACHINE
PAYS AGENTS
TO CALL.

One HTTP request. $0.005–0.01 USDC via x402. The machine returns real-time data from free APIs — weather, news, FDA, sports, papers, IPFS pin. No API keys. No registration. The agent pays per call.

$0.005

MIN / CALL

▸

REAL DATA

NO API KEY

FACILITATE ▸MCP ENDPOINT

facilitator@mcpvot ~ live● STREAMING

x402 SERVICES LIVE

PAID DATA TOOLS

CHEAPEST CALL

MCP TOOLS

01 / THE MACHINE

ONE REQUEST. FOUR MOVES.

The facilitator is a stateless x402 resource. Any HTTP client — human browser or autonomous agent — can drive it.

STEP 01

Agent calls tool

Plain HTTP GET. Server answers 402 Payment Required with x402 terms.

HTTP 402

STEP 02

Pay $0.005–0.01

Agent signs USDC transfer on Base and retries with the payment payload attached.

x402 v2

STEP 03

Fetch upstream

Server fetches data from the free upstream API (Open-Meteo, GDELT, OpenFDA, etc.).

DATA FETCH

STEP 04

Settle & return

Payment verified on-chain. Data + receipt returned in the response body.

200 OK

02 / TOOLS

SIX DATA TOOLS. ZERO API KEYS.

Each tool wraps a free upstream API behind an x402 payment gate. The agent pays per call — no registration, no API key management, no rate limit headaches.

☀

get_weather_forecast

7-day forecast + air quality

◉

search_news

500K+ global sources

✚

lookup_drug_info

FDA approvals, recalls, events

◆

get_sports_scores

NBA, NFL, MLB, NHL, soccer

◈

search_academic_papers

250M+ papers, deduplicated

⌕

search_web

Google search (SerpAPI, organic results)

≡

get_ecosystem_status

Server health + service list

03 / AGENTS

AGENTS CALLING AGENTS.

Any AI agent with x402 support can call any tool. Hermes orchestrates, Claude researches, Codex builds — each pays per call via USDC on Base. No human in the loop.

x402

$0.005–0.01

Hermes

Orchestrator

get_weather_forecast

Claude

Researcher

search_academic_papers

Cursor

Reviewer

search_news

Codex

Builder

lookup_drug_info

OpenCode

Analyst

get_sports_scores

Hermes calls get_weather_forecast()

04 / CONNECT

PLUG YOUR AGENT STRAIGHT IN.

MCPVOT is agent-native. Connect over MCP (streamable-HTTP) or raw x402 — Hermes, OpenCode, Claude, Cursor, Codex, all of them.

Hermes / OpenCodemcp · streamable-http

# ~/.hermes/config.yaml
mcp_servers:
  mcpvot:
    url: https://mcpvot.xyz/api/mcp
    transport: streamable-http

tools: 6 auto-discovered

Cursor / Claude Codemcp json

// .cursor/mcp.json  ·  ~/.claude.json
{
  "mcpServers": {
    "mcpvot": {
      "url": "https://mcpvot.xyz/api/mcp"
    }
  }
}

auto-discovers all tools

OpenAI / Codex CLImcp toml

# ~/.codex/config.toml
[mcp_servers.mcpvot]
url = "https://mcpvot.xyz/api/mcp"

works with any OpenAI model

Raw x402 (any client)http 402

# no MCP needed — pure HTTP
curl -i https://mcpvot.xyz/api/x402/weather?lat=35.69&lon=139.69
# → HTTP 402 Payment Required
#   x-payment-amount: 0.005
#   x-payment-network: base
#   x-payment-token: USDC

sign · retry · get data

/llms.txt — agent-readable spec /.well-known/mcp.json — MCP discovery /api/mcp — MCP endpoint /api/x402 — x402 discovery

05 / MISSION

S.D.A.E. — SUSTAINABLE AUTONOMOUS ECOSYSTEM.

Coin-agnostic. Human-friendly. Agent-friendly. No censorship, no gatekeeping, no human-in-the-loop approval queue. Any agent that can sign a USDC transfer on Base can call any tool — the machine doesn't care who built the agent, who funded the wallet, or what the agent plans to do with the bytes it gets back. The paywall is the only policy.

Sustainable — the per-call price is set to roughly what a data-center would charge a browser visitor. $0.005–$0.01 per call covers the upstream fetch, edge compute, and a thin margin that keeps the machine running. No subsidies, no venture runway, no token burn required.

Decentralized facilitation — the x402 facilitator lives on Coinbase Developer Platform (CDP), which has cleared $1.8M+ in real on-chain payment volume versus the legacy x402.rs endpoint. Agents settle directly against the Base L2; the machine just verifies and returns data.

Agent-first — discovery is published at /.well-known/mcp.json,/llms.txt, and surfaced to the Bazaar extension registry on every 402 response. That means: an LLM that has never seen mcpvot.xyz before can still find, quote, and call these tools because the metadata is structured and machine-parsable.

Ecosystem-friendly — the machine is designed to be pointed at by aggregators (Bazaar, agentic.market, Hermes, OpenCode), re-wrapped by other facilitators, and forked by anyone who wants a different upstream bundle. The 5 paid + 1 free tools here are a starting point, not a closed set.