Fintel API
★ Only Publicly Available OpenAPI DocumentFinanceBankingapiKey4 EndpointsREST
For Agents
Look up institutional ownership, short interest, insider trades, and options flow for any US-listed ticker — four ticker-keyed endpoints designed for agent-driven equity research.
Use for: Get the institutional ownership breakdown for AAPL, Retrieve current short interest data for GME, Find all insider transactions for TSLA in the last quarter, Check whether there has been unusual options flow on NVDA today
Not supported: Does not handle order execution, real-time quotes, or fundamental financials — use for ownership, short interest, insider, and options-flow signals only.
Jentic publishes the only available OpenAPI specification for Fintel API, keeping it validated and agent-ready. Fintel provides financial intelligence data for US-listed equities, including institutional ownership from 13F filings, short interest with daily borrow rates, insider trading transactions, and unusual options flow. The four-endpoint surface is intentionally narrow — each endpoint takes a ticker and returns a structured signal, making Fintel a clean drop-in for quant research, retail-investor copilots, and short-squeeze monitoring.
Install Jentic One Beta
Connect the Fintel API to your agent
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Fintel API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.
Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.
1
Step 1: Jentic One Host machine
# On the machine that will host your Jentic One instance:
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh2
Step 2: Agent machine
# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh
jentic register # connects your agent to your Jentic One instanceJentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.
Capabilities
What an agent can do with Fintel API.
Pull institutional ownership data for a ticker including 13F-derived holders and percent of shares held
Retrieve current short interest, days-to-cover, and stock-loan utilization for any US ticker
Surface insider transactions (Form 4 filings) including buyer name, role, share count, and value
Detect unusual options flow with strike, expiry, premium, and put/call breakdown by ticker
Use simple ticker-keyed paths so an agent can fan out across a watchlist without complex pagination
Use Cases
Patterns agents use Fintel API for, with concrete tasks.
★ Short Squeeze Monitoring
Track short interest, days-to-cover, and borrow utilization across a watchlist via /short-interest/{ticker}. Combine the daily readings with options flow from /options-flow/{ticker} to spot squeeze setups before they become headlines. Most teams have a working watchlist scanner running the same day.
For each ticker in [GME, AMC, BBBY, KOSS], call /short-interest/{ticker} and flag any with days-to-cover above 5 and utilization above 90%
Smart Money Tracking
Follow institutional positioning by polling /ownership/{ticker} for shifts in 13F-reported holdings and /insider-trading/{ticker} for Form 4 buys and sells. Useful for building 'smart money' indicators or surfacing concentrated bets in small caps. Integration is a same-day task.
Pull /insider-trading/TSLA for the last 90 days and summarise net insider buying/selling by role (CEO, CFO, director)
Unusual Options Flow Alerts
Surface large or unusual options orders via /options-flow/{ticker} including strike, expiry, premium, and side. Agents can alert on premium thresholds or sudden put/call skew, valuable for both directional traders and risk teams watching for hedging activity. Live in under an hour.
Call /options-flow/NVDA, filter to trades with premium above $1M expiring within 30 days, and post a digest to a Slack channel
AI Agent Equity Research
Use Fintel through Jentic so an agent can answer 'who owns this stock?' or 'is short interest rising?' without the developer wiring up four endpoints. Jentic's intent search routes to the right Fintel operation, the agent calls it, and the API key never leaves the vault. Get started at https://app.jentic.com/sign-up
Through Jentic, search 'get short interest for a ticker', load the /short-interest/{ticker} schema, and execute with ticker=GME
Key Endpoints
4 endpoints — jentic publishes the only available openapi specification for fintel api, keeping it validated and agent-ready.
METHOD
PATH
DESCRIPTION
GET
/ownership/{ticker}
Get institutional ownership
GET
/short-interest/{ticker}
Get short interest data
GET
/insider-trading/{ticker}
Get insider trading data
GET
/options-flow/{ticker}
Get unusual options flow
GET
/ownership/{ticker}
Get institutional ownership
GET
/short-interest/{ticker}
Get short interest data
GET
/insider-trading/{ticker}
Get insider trading data
GET
/options-flow/{ticker}
Get unusual options flow
Why Jentic?
Three things that make agents converge on Jentic-routed access.
Credential isolation
Fintel API keys are stored encrypted in the Jentic vault. The X-API-Key header is injected at execution time, so the secret never appears in the agent's prompt or logs.
Intent-based discovery
Agents search by intent (e.g. 'get short interest for a ticker') and Jentic returns the matching Fintel operation with its ticker parameter, ready to call.
Time to first call
Direct Fintel integration: a few hours to wire the four endpoints with retries. Through Jentic: under 15 minutes — search, load, execute.
Related APIs
Alternatives and complements available in the Jentic catalogue.
FAQs
Specific to using Fintel API through Jentic.
Why is there no official OpenAPI spec for Fintel API?
Fintel does not publish an OpenAPI specification. Jentic generates and maintains this spec so that AI agents and developers can call Fintel API via structured tooling. It is validated against the live API and kept up to date. Get started at https://app.jentic.com/sign-up.
What authentication does the Fintel API use?
Fintel uses an API key passed in the `X-API-Key` request header on every call. Through Jentic, the key is held encrypted in the vault and injected at request time so the agent never sees it.
Can I get short interest data with the Fintel API?
Yes. GET /short-interest/{ticker} returns reported short interest, days-to-cover, and stock-loan utilization for any covered US-listed ticker.
What are the rate limits for the Fintel API?
Limits depend on the Fintel subscription tier. The API returns standard 429 responses with retry-after headers, which Jentic surfaces to agents so they can back off and retry automatically.
How do I track insider trading through Jentic?
Search Jentic for 'get insider trading data', load the /insider-trading/{ticker} schema, and execute with the desired ticker. The response is a structured list of Form 4 transactions ready for analysis.
Does Fintel cover non-US tickers?
Coverage focuses on US-listed equities. Some endpoints include ADRs, but for global short interest or insider data, pair Fintel with a broader market-data provider.
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