io.usefulapi/finnhub
REMOTE · FINNHUB.USEFULAPI.IO · SCANNED SEP 21
Quotes, company profiles, fundamentals, earnings and IPO calendars, plus market and company news.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security78
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation is enforced on tool calls, advertised via RFC 9728 protected-resource metadata. Discovery is public, which costs nothing: no tool can be invoked without a token. View diagnostics → Pass
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 401, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
- The authorisation server offers only Dynamic Client Registration (RFC 7591), which MCP 2026-07-28 deprecated in favour of Client ID Metadata Documents. View diagnostics → Partial
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability82
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 1235 tokens (~82/item across 15 items; 15 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 15 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 15 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
How do I install the io.usefulapi/finnhub MCP server?
io.usefulapi/finnhub is a hosted endpoint at https://finnhub.usefulapi.io/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · finnhub.usefulapi.io
claude mcp add --transport http io-usefulapi-finnhub 'https://finnhub.usefulapi.io/mcp'
{
"mcpServers": {
"io-usefulapi-finnhub": {
"url": "https://finnhub.usefulapi.io/mcp"
}
}
} {
"servers": {
"io-usefulapi-finnhub": {
"type": "http",
"url": "https://finnhub.usefulapi.io/mcp"
}
}
} [mcp_servers.io-usefulapi-finnhub] url = "https://finnhub.usefulapi.io/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"io-usefulapi-finnhub": {
"type": "remote",
"url": "https://finnhub.usefulapi.io/mcp",
"enabled": true
}
}
} openclaw mcp add io-usefulapi-finnhub --url 'https://finnhub.usefulapi.io/mcp' --transport streamable-http
mcp_servers:
io-usefulapi-finnhub:
url: "https://finnhub.usefulapi.io/mcp" {
"McpServers": {
"io-usefulapi-finnhub": {
"Transport": "http",
"Url": "https://finnhub.usefulapi.io/mcp"
}
}
} assistant mcp add io-usefulapi-finnhub -t streamable-http -u 'https://finnhub.usefulapi.io/mcp'
{
"mcpServers": {
"io-usefulapi-finnhub": {
"type": "http",
"url": "https://finnhub.usefulapi.io/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 17 Sept 26 0
- Stability: 0.97 → pass security
- 16 Sept 26 0
- Stability: pass → 0.97 functional
- 1 Sept 26 0
- Stability: 0.97 → pass security
- 31 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 28 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 26 Aug 26 +2
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.
- 18 Aug 26 0
- Transport: unverified → pass ▲ security
- Authorization: unverified → pass ▲ security
- MCP protocol: unverified → fail ▼ functional
- Endpoint reachability: not serving MCP → reachable ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- Stability: unverified → 0.53 ▲ functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 21 Sept 2026 · Probed https://finnhub.usefulapi.io/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=usefulapi.io | CN=WE1,O=Google Trust Services,C=US | 1 Aug 2026 | 30 Oct 2026 | ECDSA 256 | ECDSA-SHA256 | be19507c34b6dedf0e4bc252a9cd1b8e |
| SANs: usefulapi.io, finnhub.usefulapi.io, *.finnhub.usefulapi.io | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of finnhub.usefulapi.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 57355 | 8 | Verified |
| usefulapi.io. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Enforced and verified
The endpoint asked for a token and published valid RFC 9728 metadata describing how to get one.
| Result | Enforced and verified |
|---|---|
| Enforced | On tool calls |
| HTTP status | 200 |
WWW-Authenticate challenge Bearer realm="OAuth", resource_metadata="https://finnhub.usefulapi.io/.well-known/oauth-protected-resource/mcp", error="invalid_token", error_description="Missing or invalid access token"
Bearer realm="OAuth", resource_metadata="https://finnhub.usefulapi.io/.well-known/oauth-protected-resource/mcp", error="invalid_token", error_description="Missing or invalid access token"Protected resource metadata
| Document | https://finnhub.usefulapi.io/.well-known/oauth-protected-resource/mcp |
|---|---|
| Retrieved | Yes |
| Resource | https://finnhub.usefulapi.io/mcp |
| Authorisation server | https://finnhub.usefulapi.io |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://finnhub.usefulapi.io/mcp | Verified | 200 | |
| http (plaintext) | http://finnhub.usefulapi.io/mcp | Inconclusive | 401 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
finnhub_basic_financials Basic financials ~86
Key financial metrics for a company — valuation, margins, growth, per-share and 52-week ratios. Finnhub REST: GET /stock/metric.
| Name | Type | Req | Description |
|---|---|---|---|
| metric | string | – | Metric group to fetch — 'all' (default) returns every available metric. |
| symbol | string | yes | Stock ticker symbol, e.g. 'AAPL' (required). |
No output schema declared.
No examples provided.
finnhub_company_news Company news ~88
Latest company news for a symbol over a date range (up to 1 year back). Finnhub REST: GET /company-news.
| Name | Type | Req | Description |
|---|---|---|---|
| from | string | yes | Start date, yyyy-mm-dd (required). |
| symbol | string | yes | Stock ticker symbol, e.g. 'AAPL' (required). |
| to | string | yes | End date, yyyy-mm-dd (required). |
No output schema declared.
No examples provided.
finnhub_company_profile Company profile ~118
General company profile — name, country, currency, exchange, industry, market cap, share outstanding, IPO date, logo and more. Provide at least one of `symbol`, `isin` or `cusip`. Finnhub REST: GET /stock/profile2.
| Name | Type | Req | Description |
|---|---|---|---|
| cusip | string | – | CUSIP identifier (use instead of symbol/isin). |
| isin | string | – | ISIN identifier (use instead of symbol/cusip). |
| symbol | string | – | Stock ticker symbol, e.g. 'AAPL'. |
No output schema declared.
No examples provided.
finnhub_earnings_calendar Earnings calendar ~91
Upcoming and historical earnings release calendar, optionally filtered by date range and/or symbol. Finnhub REST: GET /calendar/earnings.
| Name | Type | Req | Description |
|---|---|---|---|
| from | string | – | Start date, yyyy-mm-dd (optional). |
| symbol | string | – | Filter the calendar to a single symbol, e.g. 'AAPL'. |
| to | string | – | End date, yyyy-mm-dd (optional). |
No output schema declared.
No examples provided.
finnhub_earnings_surprises Earnings surprises ~75
Historical quarterly EPS surprises — actual vs. estimated EPS by period. Finnhub REST: GET /stock/earnings.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Limit the number of periods returned (most recent first). |
| symbol | string | yes | Stock ticker symbol, e.g. 'AAPL' (required). |
No output schema declared.
No examples provided.
finnhub_insider_transactions Insider transactions ~97
Insider transactions (Form 3/4/5 filings) for a company, optionally within a date range. Finnhub REST: GET /stock/insider-transactions.
| Name | Type | Req | Description |
|---|---|---|---|
| from | string | – | Start date, yyyy-mm-dd (optional). |
| symbol | string | yes | Stock ticker symbol, e.g. 'AAPL' (required). |
| to | string | – | End date, yyyy-mm-dd (optional). |
No output schema declared.
No examples provided.
finnhub_ipo_calendar IPO calendar ~66
IPO calendar for a date range — upcoming and recent initial public offerings. Finnhub REST: GET /calendar/ipo.
| Name | Type | Req | Description |
|---|---|---|---|
| from | string | yes | Start date, yyyy-mm-dd (required). |
| to | string | yes | End date, yyyy-mm-dd (required). |
No output schema declared.
No examples provided.
finnhub_market_news Market news ~72
General latest market news by category. Finnhub REST: GET /news.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | News category — 'general' (default), 'forex', 'crypto' or 'merger'. |
| minId | integer | – | Only return news with an id greater than this (pagination). |
No output schema declared.
No examples provided.
finnhub_market_status Market status ~52
Current market open/closed status and session for an exchange. Finnhub REST: GET /stock/market-status.
| Name | Type | Req | Description |
|---|---|---|---|
| exchange | string | yes | Exchange code, e.g. 'US' (required). |
No output schema declared.
No examples provided.
finnhub_peers Company peers ~84
Peer companies for a symbol (same country and GICS sub-industry). Finnhub REST: GET /stock/peers.
| Name | Type | Req | Description |
|---|---|---|---|
| grouping | string | – | Peer grouping criterion, e.g. 'sector', 'industry' or 'subIndustry' (default). |
| symbol | string | yes | Stock ticker symbol, e.g. 'AAPL' (required). |
No output schema declared.
No examples provided.
finnhub_price_target Price target ~78
Analyst price targets for a symbol — high / low / median / mean target. Note: this is a premium-tier Finnhub endpoint (may return 403 on the free plan). Finnhub REST: GET /stock/price-target.
| Name | Type | Req | Description |
|---|---|---|---|
| symbol | string | yes | Stock ticker symbol, e.g. 'AAPL' (required). |
No output schema declared.
No examples provided.
finnhub_quote Real-time quote ~82
Real-time quote for a stock — current price (c), change (d), percent change (dp), high (h), low (l), open (o), previous close (pc) and unix timestamp (t). Finnhub REST: GET /quote.
| Name | Type | Req | Description |
|---|---|---|---|
| symbol | string | yes | Stock ticker symbol, e.g. 'AAPL' (required). |
No output schema declared.
No examples provided.
finnhub_recommendation_trends Recommendation trends ~67
Analyst recommendation trends over time — counts of strong buy / buy / hold / sell / strong sell by period. Finnhub REST: GET /stock/recommendation.
| Name | Type | Req | Description |
|---|---|---|---|
| symbol | string | yes | Stock ticker symbol, e.g. 'AAPL' (required). |
No output schema declared.
No examples provided.
finnhub_stock_symbols Stock symbols ~97
List all symbols supported on an exchange. Finnhub REST: GET /stock/symbol.
| Name | Type | Req | Description |
|---|---|---|---|
| currency | string | – | Filter by trading currency, e.g. 'USD'. |
| exchange | string | yes | Exchange code, e.g. 'US' (required). |
| mic | string | – | Filter by Market Identifier Code (MIC). |
| securityType | string | – | Filter by security type, e.g. 'Common Stock'. |
No output schema declared.
No examples provided.
finnhub_symbol_search Symbol search ~82
Search for stock symbols by name or ticker — returns best-matching symbols with descriptions and types. Finnhub REST: GET /search.
| Name | Type | Req | Description |
|---|---|---|---|
| exchange | string | – | Restrict results to an exchange, e.g. 'US'. |
| q | string | yes | Free-text query — a company name or ticker, e.g. 'apple' (required). |
No output schema declared.
No examples provided.
What is the io.usefulapi/finnhub MCP server?
io.usefulapi/finnhub is an MCP server listed in the public MCP registry as io.usefulapi/finnhub. Quotes, company profiles, fundamentals, earnings and IPO calendars, plus market and company news. This page covers its hosted endpoint (https://finnhub.usefulapi.io/mcp).
Is the io.usefulapi/finnhub MCP server safe to use?
io.usefulapi/finnhub scores 86 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.usefulapi/finnhub MCP server expose?
io.usefulapi/finnhub exposes 15 tools: finnhub_quote, finnhub_symbol_search, finnhub_company_profile, finnhub_company_news, finnhub_market_news, and 10 more. Their descriptions and schemas cost roughly 1,235 tokens of context every time the server is loaded.
Does the io.usefulapi/finnhub MCP server require authentication?
Yes. io.usefulapi/finnhub asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.
Is the io.usefulapi/finnhub MCP server still maintained?
io.usefulapi/finnhub is still listed as active in the MCP registry. We last reached this channel on 21 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.