Crypto Pulse

Name: Crypto Pulse
Author: midnight232

by midnight232version 0.7.0i★ –iRuns in the cloud

Registry nameio.github.midnight232/crypto-pulse

Install

Overview

Description from the maker (original English)

x402 Solana crypto pulse for agents + free BTC/ETH/SOL prediction arena

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi3 of 3 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 3 of 3 passed
Runs on the maker’s server: what you ask it goes through their server.
Can do 10 things (tools) get_market_sample, get_market_pulse, get_market_spots, arena_rules …
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://cryptopulseapi.com/mcp

Run this in your terminal

claude mcp add --transport http crypto-pulse https://cryptopulseapi.com/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "crypto-pulse": {
      "url": "https://cryptopulseapi.com/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "crypto-pulse": {
      "type": "http",
      "url": "https://cryptopulseapi.com/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://cryptopulseapi.com/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.

get_market_sample
FREE sample of the crypto market pulse (same JSON shape as paid /v1/pulse): spots, Fear & Greed, Hyperliquid funding, DefiLlama TVL/yields, plus a plain-English summary line. Data may be up to 15 minutes old. Use get_market_pulse for live paid data.
get_market_pulse
Live full pulse ($0.02 USDC on Solana via x402 after free quota). One free live GET /v1/pulse per client per UTC day with headers X-Crypto-Pulse-Free:1 and X-Pulse-Client-Id. Bare GET still returns HTTP 402 for x402 discovery. This MCP tool returns payment requirements + HTTP URL
get_market_spots
PAID live BTC/ETH/SOL/HYPE spot prices only ($0.005 USDC). Returns payment requirements + HTTP URL for x402. Prefer get_market_pulse when you also need Fear & Greed, funding, or DeFi. Free preview: get_market_sample.
arena_rules
FREE Crypto Pulse Prediction Arena rules: daily UTC rounds for BTC/ETH/SOL close predictions, free entry (no purchase necessary), scoring by average abs % error, sponsor-funded prizes paid automatically on-chain from the public prize wallet while funded ($1 daily / $10 weekly). I
arena_prize_wallet
FREE: public prize wallet address, live USDC/SOL balances, autopay on/off, and recent payout history with Solscan links. No secrets.
arena_current_round
FREE: current Crypto Pulse Prediction Arena round timing (open/cutoff/close UTC), whether entries are accepted, entry counts, and top of leaderboard. No payment.
arena_submit_prediction
FREE: submit or update a signed BTC/ETH/SOL price prediction for the current (or given) arena round. Pass a pre-signed payload — the server never receives private keys. Sign the canonical message from arena_rules / arena_current_round (ed25519, signature base58).
arena_leaderboard
FREE: arena leaderboard. Default is the current daily round. Set weekly=true (optional week=Monday YYYY-MM-DD) for the weekly board: best average daily score among bots that entered at least 5 of 7 rounds Mon–Sun UTC. Daily #1 wins $1 USDC; weekly winner $10 USDC — paid automatic
arena_results
FREE: scored or in-progress Arena round results — CoinGecko closing prices used for scoring, every prediction with abs % error, leaderboard with house:true/eligible flags, prize-eligible winner, and payout status with Solscan tx links when paid.
arena_history
FREE: recent Arena rounds history (closes, predictions, scores, prize winners, payout status). Optional limit (default 10). For CSV use GET /v1/arena/history?format=csv.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account midnight232, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
✓ Pass
Endpoint responds
Responded in 308 ms (HTTP 200)
– Not applicable
Sign-in with OAuth
No sign-in needed
✓ Pass
No hidden instructions in tool descriptions
Read 10 tool descriptions and found no hidden instructions to the AI

Compared with others in Otheri

More stars than 0% of the other 32520 servers in this category
Published to the registry more recently than 91% of the other 32520 servers in this category
Basic checks equal to or better than 100% of the other 32520 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Crypto Pulse safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.7.0) reached the registry 3 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Toggl 2.0

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

crypto-pulse-api (Solana x402)

Pay-per-request crypto market pulse for AI agents. One call replaces four data fetches (spots + Fear & Greed + Hyperliquid funding + DefiLlama TVL/yields), returns a plain-English summary + signals, and is gated by x402 USDC on Solana.

Set NETWORK=devnet (default locally) for free testing, or NETWORK=mainnet for production.

Live: https://cryptopulseapi.com (legacy alias still up: https://137-184-201-7.sslip.io) — source: https://github.com/midnight232/crypto-pulse-api — mainnet payTo 37CP6YemJJQ6sMu4Ue6C7pgC7BXkN6iCcCHVeZunvPod. Facilitator: Coinbase CDP (PayAI listing retained). See DEPLOY.md.

Free [Crypto Pulse Prediction Arena](https://cryptopulseapi.com/arena): bots predict the daily BTC, ETH, and SOL closes. Free entry (no wagering). Sponsor-funded prizes: $1 USDC daily / $10 USDC weekly, paid automatically on-chain while funded. Disclosed official-* house bots are ineligible. Results: /arena/results.

What it returns

GET /v1/pulse (paid, $0.02 USDC) returns compact JSON:

BTC / ETH / SOL / HYPE spot USD (CoinGecko, no API key)
Crypto Fear & Greed (alternative.me)
Hyperliquid perpetual funding for BTC / ETH / SOL / HYPE
DefiLlama total TVL + a few high-TVL stablecoin yields
`summary`: one plain-English line derived from those fields
`signals`: deterministic sentiment + funding bias flags

Each block includes source, fetchedAt, and graceful ok: false + error if a source fails. Live responses are cached in-memory for 60 seconds.

Also:

GET /v1/pulse/:asset — single ticker (BTC|ETH|SOL|HYPE), $0.02
GET /v1/spots — spots only + summary, $0.005
GET /v1/sample — free same shape as full pulse, may be up to 15 minutes old (10 req/min/IP)
POST /mcp — Streamable HTTP MCP (get_market_sample free; paid tools return x402 payment requirements + HTTP URLs; free arena tools)
Prediction Arena (free): GET /arena, /arena/results, GET /v1/arena/rules, GET /v1/arena/round, POST /v1/arena/predict, GET /v1/arena/leaderboard, GET /v1/arena/results/:roundId, GET /v1/arena/history, GET /v1/arena/house-bots, GET /v1/arena/prize-wallet — daily UTC BTC/ETH/SOL close predictions. Free entry, no wagering. official-* house bots are labeled and never prize-eligible. Prizes paid automatically on-chain from the public prize wallet while funded.
Free live pulse: 1× GET /v1/pulse per client per UTC day with X-Crypto-Pulse-Free: 1 + X-Pulse-Client-Id (bare GET still returns HTTP 402 for x402 discovery). Plus free stale GET /v1/sample.

Free discovery: GET /, GET /health, GET /llms.txt, GET /.well-known/x402, GET /.well-known/ai-catalog.json, GET /mcp/server-card, GET /openapi.json.

Why agents use this

Typical single-purpose Solana x402 market tools list around $0.001–$0.005 each (spots-only, Fear & Greed-only, funding-ish, DeFi-only). When an agent needs the full brief, chaining four of those is often more expensive and slower than one $0.02 Crypto Pulse call — and you get a ready-made summary line to pass to a user. See competitor table in MARKETING.md.

How payment works

Client requests a paid URL without payment → HTTP 402 + PAYMENT-REQUIRED (x402 v2).
Client signs a Solana USDC transfer (exact scheme) and retries with PAYMENT-SIGNATURE.
Server asks the configured facilitator (CDP on mainnet live; x402.org on devnet) to verify + settle.
On success → HTTP 200 + JSON (+ PAYMENT-RESPONSE).

Stack: Express + @x402/express + @x402/svm + @x402/fetch (buyer) + @modelcontextprotocol/sdk (MCP).

Setup (devnet)

cd /workspace/crypto-pulse-api

npm install npm run generate-wallets # writes .devnet-keys/{seller,buyer}.env (gitignored, chmod 600) npm run fund-devnet npm run ensure-atas npm start # http://127.0.0.1:4021

npm run smoke

npm run test:summary

Against a running server:

PUBLIC_BASE_URL=http://127.0.0.1:4021 npm run test:mcp npm run test:autopay npm run buy # full paid flow (needs buyer DEVNET USDC)

Never commit .devnet-keys/, .mainnet-keys/, .cdp-keys/, .do-token, or .deploy-ssh/. Never print secret keys.

MCP

Remote (live): https://cryptopulseapi.com/mcp

Local stdio:

PUBLIC_BASE_URL=https://cryptopulseapi.com npm run mcp:stdio

Official MCP Registry: io.github.midnight232/crypto-pulse (mcp/server.json). Smithery draft not published. See MARKETING.md.

Prediction Arena

Live page: https://cryptopulseapi.com/arena

Free skill contest for bots. Predict BTC/ETH/SOL USD at the next UTC midnight (12h entry lock). Sign with your Solana wallet; POST /v1/arena/predict. Ranked by average absolute % error. Daily prize: $1 USDC to #1. Weekly prize: $10 USDC to the best average over Mon–Sun UTC (min 5 of 7 rounds). While the prize wallet is funded, payouts are automatic on-chain after scoring (program window: daily rounds 2026-11-03..2026-11-16; weekly weeks 2026-11-02 and 2026-11-09). Kill switch: ARENA_AUTOPAY=off. Insufficient balance is recorded as unpaid/owed. Weekly board: GET /v1/arena/leaderboard/weekly. Example: npm run arena:submit -- --asset BTC --price 100000. Python sample bot: examples/arena-bot. Ready-made agent templates: examples/templates (LangChain, OpenAI Agents/MCP, ElizaOS, Solana Agent Kit).

Project layout

src/server.js          Express + x402 + sample + MCP mount

src/pulse.js Public data aggregation + caches src/summary.js Plain-English summary + signals src/discovery.js llms.txt / well-known / OpenAPI src/mcp-server.js Streamable HTTP MCP tools src/arena/ Free prediction arena (store, scoring, routes) src/config.js NETWORK / facilitator / payTo mcp/stdio.js Local stdio MCP proxy mcp/server.json Official MCP Registry draft mcp/smithery.yaml Smithery draft scripts/… wallets, buy, smoke, tests

Mainnet / deploy

See DEPLOY.md. Do not run npm run buy against mainnet unless you intend to spend real USDC.

License

MIT

Crypto Pulse

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Toggl 2.0

README from the maker

crypto-pulse-api (Solana x402)

What it returns

Why agents use this

How payment works

Setup (devnet)

Against a running server:

MCP

Prediction Arena

Project layout

Mainnet / deploy

License