Spec Driven Development
by formulahendry
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer★ 440MITUpdated 14 months ago
Install
Toolcall
Overview
Description from the maker (original English)
30 pay-per-call APIs for AI agents: compliance, trade, safety, web, data. USDC on Base via x402.
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 checksi1 of 1 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: 1 of 1 passed
- Runs on the maker’s server: what you ask it goes through their server.
- 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?
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://toolcall.click/mcpRun this in your terminal
claude mcp add --transport http toolcall https://toolcall.click/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"toolcall": {
"url": "https://toolcall.click/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.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"toolcall": {
"type": "http",
"url": "https://toolcall.click/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://toolcall.click/mcpMenu 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
We have not read this server’s tool list yet; we check endpoints in rotation.
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 against the domain toolcall.click (the registry checks domain ownership)
- … 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
- … Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
- … Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Compared with others in Otheri
- More stars than 0% of the other 32466 servers in this category
- Published to the registry more recently than 18% of the other 32466 servers in this category
- Basic checks equal to or better than 100% of the other 32466 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 Toolcall safe?
It passed 1 of 1 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 (1.0.0) reached the registry 4 months 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, HotCodePush
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Remote Desktop Commander
by desktop-commander
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud★ 211Updated yesterday
Install
HotCodePush
by hotcodepush-team
Manage over-the-air (OTA) updates for React Native, Expo, Capacitor and Cordova apps.
Runs in the cloudUpdated today
Install
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.
Toolcall MCP
30 pay-per-call APIs for AI agents, over MCP. Compliance, trade, safety, web, and data tools an agent can call directly. No account, no API key. Each call costs a few cents in USDC on Base via the x402 protocol, and the calling client pays automatically when it supports x402.
- Remote MCP endpoint:
https://toolcall.click/mcp(Streamable HTTP) - Catalog / manifest:
https://toolcall.click/andhttps://toolcall.click/.well-known/x402 - OpenAPI:
https://toolcall.click/openapi.json
What you get
One MCP server, 30 tools spanning things agents actually need but that are annoying to wire up: official sanctions/AML screening, HS-code customs classification, chemical safety, FDA drug/device intelligence, electronic-component pricing, SEC financials, and clean web tooling (search, reader, screenshot, tech-stack, archive history). Every tool is a single call that aggregates authoritative sources and returns clean JSON.
Connect
Any MCP client that supports remote Streamable HTTP servers
Point it at:
https://toolcall.click/mcpClaude Desktop / Cursor / stdio-only clients
Bridge the remote server to stdio with mcp-remote:
{"mcpServers": { "toolcall": { "command": "npx", "args": ["-y", "mcp-remote", "https://toolcall.click/mcp"] } } }
Paying for calls
Tools are priced per call (see table). The payment model is client-pays: calling a tool without payment returns the exact price and x402 payment requirements in the result's _meta["x402/payment-required"] field. An x402-capable client signs a USDC payment on Base (gasless, EIP-3009) and retries with the signed payload in params._meta["x402/payment"]. The server never holds or forwards funds — payment goes straight to the tool operator's wallet.
You can also call any tool over plain HTTP with a standard x402 client (e.g. x402-fetch, x402-axios, or the Coinbase CDP Bazaar): a bare request returns HTTP 402 with payment requirements; pay and retry the same URL.
Tools
| Endpoint | Tool | Price (USDC) |
|---|---|---|
/t/crypto/spot | Crypto Spot Price | $0.003 |
/t/crypto/gas | Gas Price | $0.002 |
/t/fx/rates | FX Rates (ECB) | $0.002 |
/t/domain/check | Domain Trust Check | $0.008 |
/t/email/validate | Email Address Validation | $0.004 |
/t/news/search | News Search | $0.010 |
/t/youtube/transcript | YouTube Transcript | $0.010 |
/t/pdf/extract | PDF Text Extraction | $0.010 |
/t/web/search | Web Search | $0.008 |
/t/brand/visibility | Brand AI-Visibility Snapshot | $0.250 |
/t/web/screenshot | Web Page Screenshot | $0.015 |
/t/web/reader | URL to Markdown Reader | $0.006 |
/t/chem/safety | Chemical Safety Intelligence | $0.030 |
/t/chem/compatibility | Chemical Compatibility Verdict | $0.030 |
/t/recall/check | Universal Recall & Safety Check | $0.020 |
/t/med/drug | Drug Intelligence (FDA) | $0.040 |
/t/med/device | Medical Device Intelligence (FDA) | $0.040 |
/t/hs/classify | HS Code Classifier & Duty Lookup | $0.040 |
/t/sanctions/screen | Sanctions / Watchlist Screening | $0.020 |
/t/company/verify | Company & VAT Verification | $0.020 |
/t/product/barcode | Product & Packaging Intelligence | $0.020 |
/t/legal/cases | Litigation & Bankruptcy Intelligence (US) | $0.050 |
/t/part/lookup | Electronic Component Intelligence | $0.040 |
/t/jobs/search | Job Postings Search | $0.020 |
/t/local/search | Local Business & Place Search | $0.020 |
/t/package/check | Package Supply-Chain Safety Check | $0.010 |
/t/web/history | Website History & Archive Timeline | $0.020 |
/t/web/techstack | Website Tech Stack Fingerprint | $0.020 |
/t/sec/financials | SEC Company Financials (XBRL) | $0.030 |
/t/time/holidays | Public Holidays & Business Days | $0.010 |
Networks
- Payment: USDC on Base mainnet (
eip155:8453), x402 v2 "exact" scheme.
License
MIT