Callistra API is the financial intelligence layer for applications and AI.

Financial intelligence, built for machines.

Company data, documents, financials, live events and institutional-grade search — through one API.

Callistra API — hero visual

Financial documents from their source. Structured. Live. Summaries. Institutional Search. Financials.

Callistra delivers primary company documents from public companies locally. Live and historical earning calls, investor events with their transcripts. Filings, reports, slide presentations and then summaries. The proprietary, low-latency Callistra search engine which powers Callistra's AI Agents and search across news, company documents, broker research and expert insights. Financials and KPIs API. Integrate within an afternoon. Scale to millions of queries.

50K+

Companies covered

80+

Financial markets covered

80M+

Financial documents

Who's it for:

AI & LLMs — image

AI & LLMs

Integrate world class, complete, and the most comprehensible data for global financial markets.

Quantitative Finance, Hedge Funds and Asset Managers — image

Quantitative Finance, Hedge Funds and Asset Managers

Run NLP workflows and fine-tune models. Build proprietary workflows at scale. 50K+ companies under a stable identity.

Financial Research Platforms — image

Financial Research Platforms

Backfill data gaps, across thousands of companies and millions of documents.

Brokerage firms, trading applications — image

Brokerage firms, trading applications

Provide retail users with institutional intelligence.

Why choose Callistra

Structured for LLMs and AI

Structured datasets by companies. Documents aren't just downloadable files. They're parsed, indexed, searchable and ready for retrieval. From investor documents to earnings transcripts, identified by speakers.

One company graph

Documents, events, transcripts and financials resolve against consistent company identities across markets and listings.

Search included

Don't build your own financial retrieval stack. Query the same search infrastructure powering Callistra.

Global by design

Research companies across North America, Europe, Asia-Pacific, India, the Middle East and Australia/New Zealand other major markets.

30 Unique Datasets, 5 unique APIs.

Events API

Markets happen live.Access live and historical company events with audio and transcripts.

Live Datasets

Live earnings calls

Earnings calls, investor days, conferences and other company events. No registration. Ultra-low latency.

Live transcripts

Transcript segments delivered as events happen.

Historical transcripts

Searchable transcripts with timestamps, speakers and event metadata.

Historical audio

Original event audio linked against companies and events.

Documents API

Every company document. One interface.Access company filings and investor-relations material across global markets.

Coverage

Annual reports

Quarterly reports

Exchange filings

Investor presentations

Earnings releases

Regulatory announcements

M&A documents

IPO documents & prospectuses

ESG reports

IR Material

News

Delivery

Retrieve original documents or machine-readable parsed content with normalized company metadata. No need to maintain OCR workers and parsers.

Search API

Search financial information like Callistra.Give developers direct access to the retrieval layer powering Callistra.

Capabilities

Keyword search

Precise lexical retrieval across company information.

Semantic search

Find information by meaning, not exact wording.

Hybrid retrieval

Combine semantic and keyword signals for financial research.

Metadata filtering

Filter by company, geography, exchange, document type, fiscal period, date and other metadata.

No need to ingest millions of PDFs, embed them, maintain vector infrastructure, map tickers and build ranking.

Summaries API

Know what changed without reading everything.Every newly ingested company document can be accompanied by structured AI-generated intelligence.

Summary types

Earnings call summaries

Mergers & Acquisitions

Key news & developments

Capital raise summaries

Product releases

Industry commentary

Sentiment evolution

Financials API

Global financials. Normalized.Access standardized financial statements, company fundamentals, key metrics and KPIs through consistent schemas.

Coverage

Income statements

Balance sheets

Cash flow statements

Historical financials

Quarterly & annual periods

Company fundamentals

Reported + standardized values

KPIs

Developer documentation

Complete developer documentation, endpoint references, help guides and FAQs with authentication, SLA definition and code examples.

Developer documentation — visual

Integration route

Data scope

A sales representative with a member of engineering discusses your use case, data requirements, expected volume and scope.

  • Map required datasets
  • Define scope
  • Run demo examples

Testing and development

Begin testing essential workflows.

  • Receive sandbox credentials
  • Integrate against production compatible APIs
  • Run tests and monitoring

Validation

Validate data quality, search performance and workflows against your application.

  • Finalise data models
  • Benchmark performance
  • Begin production beta testing

Scale & Support

Move to production with agreed usage limits, support and SLAs.

  • Continuous updates
  • 24/7 support
  • Pay as you go available in case of usage limits exceeded.

See what Callistra can do for your team, with tailored trials.

Frequently Asked Questions