Signal8 MCP vs Toolcall
A side-by-side look at the Signal8 MCP and Toolcall MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Signal8 MCP for finance & fintech work as a local process; choose Toolcall for finance & fintech over a hosted endpoint. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Signal8 MCP when
- You need dedicated capabilities in the Finance & Fintech domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
SIGNAL8_API_KEY. - You want tools like
search_companies, get_company_profile, get_quote.
Choose Toolcall when
- You need dedicated capabilities in the Finance & Fintech domain.
- You prefer a remote HTTP/SSE transport.
- You want tools like
crypto-gas, fx-rates, domain-check.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Finance & Fintech | Finance & Fintech |
| Quality signal | 64/100 · Good | 53/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Remote HTTP/SSE |
| Auth | API key required | Not declared |
| Pricing | BYOK (pay the provider) | Not declared |
| Required env vars | SIGNAL8_API_KEY | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 1 | 0 |
| Directory activity | 6 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 101 | 20 |
| Full listing | View Signal8 MCP | View Toolcall |
Tools & capabilities
Signal8 MCP tools 101
search_companiesSearch for companies by name or ticker symbol in the Signal8 database. Returns matching companies with their ticker, name, CIK, and exchange. Use this as the first step to find a company before calling other tools.get_company_profileGet an enriched company profile by ticker symbol. Returns CIK, exchange, sector, industry, market cap, employee count, description, and other fundamental data. This is a lightweight lookup (1 credit) -- use this when you only need basic company info rather than the full bundle. Always includes halted/haltCode/haltedAt trading-halt status (false/null when trading normally); a halted-but-listed ticker reports delisted:false.get_quoteGet the current stock quote for a company including price, volume, change, market cap, and other real-time market data. Use this when a user asks about a stock's current price or trading activity. Always includes halted/haltCode/haltReason/haltedAt/resumptionAt trading-halt fields (false/null when trading normally); a halted ticker returns the last-known quote instead of an error, or currentPrice:null + halted:true when nothing is recoverable.get_market_metricsGet computed market metrics for a company including volume averages, volatility, SMAs, and trend direction. Use when analyzing trading patterns or technical indicators beyond the basic quote.get_short_interestGet short interest data for a company including short volume, short ratio, days to cover, and short percent of float. Use when analyzing bearish sentiment or potential short squeeze setups.get_floatGet float data for a company: floatShares, source, floatDefinition, and as-of date. Use when analyzing share supply. IMPORTANT: check "floatDefinition" to know which float you are reading — "tradeable" (shares outstanding minus affiliates minus restricted/unregistered blocks: what can actually reach the tape; used on filing-derived dilution-snapshot tickers), "non_affiliate" (the SEC I.B.6 figure, which INCLUDES restricted shares held by non-affiliates — not what a trader means by float), "non_affiliate_estimate" (approximated from ownership filings), or "free_float" (vendor methodology). On snapshot tickers "nonAffiliateFloatShares" carries the SEC I.B.6 figure separately — it is the ONLY correct input to baby-shelf / I.B.6 shelf-capacity math; never use the tradeable float there, and never present the non-affiliate figure as tradeable supply. floatShares:null with "floatWithheldReason" set ("restricted_blocks_unnetted" | "stated_figure_impossible" | "affiliate_basis_stale" | "affiliate_figure_declined") means the figure was deliberately WITHHELD, not unavailable — do not substitute a vendor float. On "affiliate_basis_stale", "affiliateBasis.floatLowerBound" / "floatUpperBound" are a RANGE the float lies in (both ends or neither; null = not measurable) — a range to state, never a number to compute with. "restrictedShares":null means NOT MEASURED (a block exists whose size the filings do not state), NEVER zero; "restrictedBlockCount":0 is an answer, not an absence. "affiliateBasisStale" (with basisSpanDays/affiliateAnchorDate) labels a float whose affiliate table is materially older than its share count — the number itself is unchanged.get_float_historyGet the POINT-IN-TIME float history for a company — one sample per trade date (float shares, shares outstanding, and the source the float came from). Use to answer "what was the float on date X" or to see float expand across a dilution event, which the latest-only get_float cannot show. IMPORTANT: this series is FORWARD-ONLY — it began accumulating in mid-2026 and is NOT backfilled, so early/absent history is expected and an empty rows array is a normal result, not an error or a delisted company. Each row carries "source" ("polygon" | "computed" | "sec_10k" | "fmp") because float quality varies by provider — weigh rows accordingly rather than treating all sources as equal. Charged per your API tier.get_historical_pricesGet historical OHLCV price candles for a stock. Supports daily, weekly, and monthly resolutions. Use period shorthand (1M, 3M, 6M, 1Y, 5Y, ALL) or explicit from/to UNIX timestamps. Default is 1 year of daily candles. Use this to compute price returns, chart price history, or analyze volume trends over time.get_stock_price_changeGet percentage price changes for a stock across multiple timeframes: 1D, 5D, 1M, 3M, 6M, YTD, 1Y, 3Y, 5Y, 10Y, and MAX. Use this for quick "how much is it up/down" answers without fetching full candle data.get_financialsGet income statement, balance sheet, and cash flow data for a company. Supports annual, quarterly, and trailing-twelve-month views. Use when analyzing revenue, profitability, debt, or cash position.get_earningsGet historical earnings data for a company including EPS actual vs estimate, revenue actual vs estimate, and surprise percentages. Use when analyzing earnings beats/misses or upcoming earnings expectations.get_executivesGet key executives and officers of a company including name, title, compensation, and tenure. Use when researching company leadership or management quality.- +89 more on the listing page
Toolcall tools 20
crypto-gasCurrent 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.]fx-ratesForeign 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.]domain-checkDue-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.]email-validateEmail 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.]news-searchRecent news headlines for any company, topic or query: deduplicated titles with source, link and publish date from a broad news index. Window configurable 1-30 days. JSON response. [Paid: $0.01 USDC per call via x402 on Base; the calling client pays automatically.]youtube-transcriptFull 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.]web-searchKeyless web search for agents: pass a query, get a concise web-grounded answer plus the top source results (title, URL, snippet). Live web access, no API key or account needed. JSON response. [Paid: $0.008 USDC per call via x402 on Base; the calling client pays automatically.]brand-visibilitySee 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.]screenshotFull-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.]readerTurn 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.]chem-safetyFull 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.]chem-compatCan 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.]- +8 more on the listing page
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Signal8 MCP
{
"mcpServers": {
"signal8ai-signal8-mcp": {
"command": "npx",
"args": [
"-y",
"@signal8ai/mcp"
],
"env": {
"SIGNAL8_API_KEY": "YOUR_SIGNAL8_API_KEY_HERE"
}
}
}
}
Toolcall
{
"mcpServers": {
"toolcall": {
"url": "https://toolcall.click/mcp"
}
}
}
Frequently asked questions
Signal8 MCP is categorized under Finance & Fintech and uses a local stdio subprocess. Toolcall belongs to Finance & Fintech and uses a remote HTTP/SSE transport. Pick Signal8 MCP for finance & fintech work and Toolcall for finance & fintech.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Signal8 MCP is bring-your-own-key: usage is billed by the API provider you supply a key for. Auth: api key required. Toolcall has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add signal8ai-signal8-mcp and toolcall as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Signal8 MCP has a quality signal of 64/100 (Good) with 6 views, 0 installs and 1 GitHub stars. Toolcall has 53/100 (Good) with 0 views, 0 installs and 0 GitHub stars.