Toolcall

click.toolcallPublished by toolcall.clickOfficial publisherv1.0.0Updated Oct 25, 2026

30 pay-per-call APIs for AI agents: compliance, trade, safety, web, data. USDC on Base via x402.

VerifiedStreamable HTTPWeb executableWeb Search & ScrapingFinanceBusiness & Commerce

Overview

AI-generated overview

A remote MCP server offering 30 pay-per-call data tools — web search and reading, compliance, trade, safety, finance and more — billed in USDC on Base.

What you can do
Search and read the web: keyless web search, news search, page-to-markdown reader, screenshots, YouTube transcripts, site history and tech-stack fingerprints, plus PDF extraction and local business search from the catalog list. Check compliance and trade: domain trust, email validation, HS/HTS customs classification, sanctions screening, company and VAT verification, recalls, and SEC financials. Look up safety and product data: chemical safety and compatibility, product barcodes, electronic component pricing, and public holidays. Market and finance data: crypto gas prices and ECB FX rates. Each tool returns JSON in a single call.
When to use it
Useful when an assistant needs many small, authoritative lookups without wiring up separate APIs or accounts: web research, due diligence on domains, emails or companies, customs and product data, chemical safety, or SEC figures. Best for occasional calls where per-call pricing is acceptable.
Requirements
Remote Streamable HTTP endpoint; no account or API key. Each call is paid in USDC on Base via x402, and the calling client must support x402 to pay automatically; otherwise a call returns HTTP 402 with payment requirements. Stdio-only clients need a bridge such as mcp-remote via npx.
Before you install
Every call costs money (roughly $0.002 to $0.25 USDC per call, with the brand visibility tool the most expensive), so an agent making many calls spends real funds. Payment is signed by the client and sent to the tool operator's wallet; the server states it never holds funds. Queries and inputs are sent to a third-party service.

Installation

In SourceWeft

  1. Open Toolcall in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/click.toolcall%2Ftoolcall/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "toolcall": {
      "type": "http",
      "url": "https://toolcall.click/mcp"
    }
  }
}

README

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/ and https://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/mcp

Claude Desktop / Cursor / stdio-only clients

Bridge the remote server to stdio with mcp-remote:

json
{  "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

EndpointToolPrice (USDC)
/t/crypto/spotCrypto Spot Price$0.003
/t/crypto/gasGas Price$0.002
/t/fx/ratesFX Rates (ECB)$0.002
/t/domain/checkDomain Trust Check$0.008
/t/email/validateEmail Address Validation$0.004
/t/news/searchNews Search$0.010
/t/youtube/transcriptYouTube Transcript$0.010
/t/pdf/extractPDF Text Extraction$0.010
/t/web/searchWeb Search$0.008
/t/brand/visibilityBrand AI-Visibility Snapshot$0.250
/t/web/screenshotWeb Page Screenshot$0.015
/t/web/readerURL to Markdown Reader$0.006
/t/chem/safetyChemical Safety Intelligence$0.030
/t/chem/compatibilityChemical Compatibility Verdict$0.030
/t/recall/checkUniversal Recall & Safety Check$0.020
/t/med/drugDrug Intelligence (FDA)$0.040
/t/med/deviceMedical Device Intelligence (FDA)$0.040
/t/hs/classifyHS Code Classifier & Duty Lookup$0.040
/t/sanctions/screenSanctions / Watchlist Screening$0.020
/t/company/verifyCompany & VAT Verification$0.020
/t/product/barcodeProduct & Packaging Intelligence$0.020
/t/legal/casesLitigation & Bankruptcy Intelligence (US)$0.050
/t/part/lookupElectronic Component Intelligence$0.040
/t/jobs/searchJob Postings Search$0.020
/t/local/searchLocal Business & Place Search$0.020
/t/package/checkPackage Supply-Chain Safety Check$0.010
/t/web/historyWebsite History & Archive Timeline$0.020
/t/web/techstackWebsite Tech Stack Fingerprint$0.020
/t/sec/financialsSEC Company Financials (XBRL)$0.030
/t/time/holidaysPublic Holidays & Business Days$0.010

Networks

  • Payment: USDC on Base mainnet (eip155:8453), x402 v2 "exact" scheme.

License

MIT

Source: README.md at commit ef5a114

Tools

20

crypto-gas

Current gas price and latest block for Base or Ethereum mainnet, straight from public RPC. Fresh within 15 seconds. JSON response. [Paid: $0.002 USDC per call via x402 on Base; the calling client pays automatically.]

Parameterschainrequired

fx-rates

Foreign exchange reference rates from the European Central Bank. Base currency plus optional symbols filter. Updated daily on ECB schedule. JSON response. [Paid: $0.002 USDC per call via x402 on Base; the calling client pays automatically.]

Parametersbasesymbols

domain-check

Due-diligence check on any domain: registration age via RDAP, registrar, DNS posture (A/MX/NS), SPF and DMARC presence, SSL certificate history, and risk flags like newly-registered or no-mail-setup. One call, one JSON verdict. [Paid: $0.008 USDC per call via x402 on Base; the calling client pays automatically.]

Parametersdomainrequired

email-validate

Email verification and deliverability check without sending anything: syntax, MX records, disposable-domain detection (121k+ known domains), role-account and free-provider flags. JSON verdict with a bounce/deliverability risk level. Validate emails for signup fraud prevention, list hygiene and lead qualification. [Paid: $0.004 USDC per call via x402 on Base; the calling client pays automatically.]

Parametersemailrequired

youtube-transcript

Full plain-text transcript of a YouTube video, de-duplicated and cleaned from the captions. Accepts a video id or URL. Ideal for feeding video content to LLMs. JSON response. [Paid: $0.01 USDC per call via x402 on Base; the calling client pays automatically.]

Parametersvrequired

brand-visibility

See what AI models say about a brand right now. Runs category and reputation prompts across multiple AI engines (one web-grounded), then reports whether the brand is mentioned, its position vs competitors, sentiment, the exact descriptors used, gaps, and concrete recommendations. JSON report. [Paid: $0.25 USDC per call via x402 on Base; the calling client pays automatically.]

Parametersbrandrequireddomaincategory

screenshot

Full-fidelity screenshot of any public web page, captured by a real Chrome browser. Viewport or full-page, configurable width. Returns a base64 PNG. JSON response. [Paid: $0.015 USDC per call via x402 on Base; the calling client pays automatically.]

Parametersurlrequiredfullwidth

reader

Turn any public web page, including JavaScript-heavy ones, into clean readable markdown (or text/html) with title and byline. Rendered by a real browser then stripped to the main content. Ideal for feeding pages to LLMs. JSON response. [Paid: $0.006 USDC per call via x402 on Base; the calling client pays automatically.]

Parametersurlrequiredformat

chem-safety

Full safety profile for any chemical by CAS number or name: GHS hazard classification (signal word, pictograms, H-statements, P-codes), first-aid measures for inhalation/skin/eye/ingestion, fire-fighting guidance, UN transport number, PPE, and CAMEO reactivity profile. Sourced live from PubChem (NIH) authoritative annotations. JSON response. [Paid: $0.03 USDC per call via x402 on Base; the calling client pays automatically.]

Parameterscasname

chem-compat

Can chemical A be safely mixed or stored with chemical B? Pass two CAS numbers or names. Returns a verdict (incompatible / caution / no_known_hazard), the reason, expected effects (gas evolution, heat, fire, toxic fumes) and confidence, from expert reasoning over PubChem GHS data and CAMEO-derived reactivity profiles. JSON response. [Paid: $0.03 USDC per call via x402 on Base; the calling client pays automatically.]

Parametersarequiredbrequired

hs-classify

Classify any product to its HS / HTS customs code from a plain-English description. Expert LLM classification grounded in the live official USITC Harmonized Tariff Schedule: returns the 10-digit HTS code, international HS6, official description path, US duty rate (general + special programs), confidence, reasoning and alternates. JSON response. [Paid: $0.04 USDC per call via x402 on Base; the calling client pays automatically.]

Parametersdescrequireddest

product-barcode

Full product truth from an EAN/UPC barcode: name, brand, quantity, categories, complete ingredients, allergens, additives, nutrition per 100g, Nutri-Score / NOVA / Eco-Score, packaging materials with recycling info, plus any linked CPSC or FDA recall for the same barcode. Covers food, general products and cosmetics (Open Food/Products/Beauty Facts). JSON response. [Paid: $0.02 USDC per call via x402 on Base; the calling client pays automatically.]

Parameterseanrequired

part-lookup

Everything about an electronic component from its manufacturer part number: live distributor stock and price breaks across DigiKey, Mouser, Farnell, RS, Arrow and more, lifecycle status, MOQ, packaging, lead times, datasheet link, key specs and drop-in alternates. Optional country= for regional pricing. One call instead of checking each distributor. JSON response. [Paid: $0.04 USDC per call via x402 on Base; the calling client pays automatically.]

Parametersmpnrequiredcountry

package-check

Is this dependency safe to use? Pass a package name (npm, PyPI, Go, Maven, crates.io, RubyGems, NuGet) and optional version: returns known vulnerabilities (OSV/CVE with CVSS and fixed-in version), deprecation status, license, latest version, repo health (stars, OpenSSF Scorecard) and an overall ok/caution/avoid verdict. JSON response. [Paid: $0.01 USDC per call via x402 on Base; the calling client pays automatically.]

Parameterseconamerequiredversion

sec-financials

Key financials for any US-listed company by ticker, straight from SEC EDGAR XBRL filings: latest annual revenue, gross profit, operating and net income, total assets, liabilities, stockholders equity, cash and diluted EPS, plus up to 5 years of history for each. Official as-reported 10-K figures. Pass ticker=. JSON response. [Paid: $0.03 USDC per call via x402 on Base; the calling client pays automatically.]

Parameterstickerrequired

holidays

Public holidays for any country and year, plus optional business-day checking. Pass country= (ISO alpha-2) and year=; add date= to learn whether that day is a business day, whether it is a weekend or public holiday, the holiday name, and the next business day. Covers 100+ countries. JSON response. [Paid: $0.01 USDC per call via x402 on Base; the calling client pays automatically.]

Parametersdateyearcountryrequired

Version history

1
  1. v1.0.0LatestSep 16, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts