FinFeedAPI

This changelog covers updates for the FinFeedAPI product line, including changes to Currencies API, Stock API, Flat Files API, Prediction Markets API, SEC API, shared platform services such as Console or MCP API, and related documentation.

It's a log of: BREAKING CHANGES, FEATURES, IMPROVEMENTS, BUG FIXES, INTEGRATIONS, or other NOTES per public version.

2026 September 2

BUG FIXES

• MCP API: Fixed MCP tool calls failing when usage reporting tried to write response headers after the streamed response had already started.
• Console: Improved invoice handling.

2026 August 22

BUG FIXES

• Console: Improved loading speed.

2026 August 20

INTEGRATIONS

• Prediction Markets API: Added FORECASTEX coverage, including symbol discovery plus trades and OHLCV from ForecastEx daily files.

2026 August 19

INTEGRATIONS

• Prediction Markets API: Added CRYPTOCOMPM (Crypto.com prediction markets) for event and contract metadata, including per-contract prices carried on the periodic event poll.

IMPROVEMENTS

• Prediction Markets API: Faster /v1/markets/{exchange_id}/history pagination so deep pages no longer get progressively slower.
• Stock API: Faster /v1/symbols/{exchange_id} pagination for large listings, including page jumps that previously got slower on later pages.

NOTES

• Prediction Markets API: CRYPTOCOMPM is metadata and price-only. The venue has no documented live book or trades feed, and expired contracts are removed instead of returning a settlement status.

2026 August 18

INTEGRATIONS

• Prediction Markets API: Added PASCAL with REST market discovery, resolution polling, and live WebSocket book and trades.
• Prediction Markets API: Added GEMINIPM (Gemini prediction markets) with REST discovery and live WebSocket market data.

2026 August 11

IMPROVEMENTS

• Pricing: Renamed billable display units from GB/MB to GiB/MiB so usage and Flat Files pricing match binary byte sizes.
• Documentation: Updated product documentation links to www.finfeedapi.com/docs.

2026 August 10

BUG FIXES

• Prediction Markets API: Hardened POLYMARKET ingestion so CLOB archive walks no longer exhaust memory or block metadata writes.
• Console: Prevented organization creation when the authenticated email claim is missing.

2026 August 7

IMPROVEMENTS

• MCP API: Upgraded the shared MCP server stack so clients that send modern server/discover requests can connect successfully.
• Prediction Markets API: Improved historical flat-file read performance by filtering and parsing only the requested symbol rows.

BUG FIXES

• Console: Fixed auto-recharge retries so failed draft invoices are cleaned up instead of blocking later payment-method attempts.

2026 August 6

BUG FIXES

• Prediction Markets API: Detect KALSHI market settlement and finalization in real time, including finalized and determined statuses used by ranked-choice and multi-candidate markets.

2026 August 4

IMPROVEMENTS

• Prediction Markets API: Closed and resolved markets now receive metadata updates so status and settlement fields stay current after the market is first listed.

2026 July 28

BUG FIXES

• Prediction Markets API: Fixed single-market lookups for KALSHI, MYRIAD, and HYPERLIQUIDOUTCOME that could return 404 because of key-casing mismatches.

2026 July 14

IMPROVEMENTS

• Stock API: Faster /v1/symbols/{exchange_id} pagination for exchanges with large symbol histories.

2026 July 13

BUG FIXES

• Stock API: Restored Euronext reference-data updates by switching instrument extraction to the public CSV export endpoints after the previous list API stopped returning rows.

2026 July 10

IMPROVEMENTS

• Prediction Markets API: Faster /v1/markets/{exchange_id}/history pagination for venues with large market histories.

BUG FIXES

• Prediction Markets API: Fixed POLYMARKET crashing on a broken WebSocket during subscribe.

2026 June 12

IMPROVEMENTS

• Platform: Improved streaming and queue processing infrastructure to strengthen observability and operational control for data delivery workflows.

2026 June 11

FEATURES

• Console: Added organization-level billing mode management and improved billing usage reporting.

IMPROVEMENTS

• Console: Refined default date ranges and usage metrics in billing views for clearer reporting.

2026 June 10

IMPROVEMENTS

• Console: Improved onboarding communication workflows for more consistent customer follow-up.
• MCP API: Improved API key traceability and request logging for MCP-related actions.

2026 June 9

IMPROVEMENTS

• Documentation: Added clearer pricing, API usage, pagination-limit, and lag-diagnostics guidance.

2026 June 8

FEATURES

• Console: Added more detailed free-credit eligibility checks with clearer qualification outcomes.

IMPROVEMENTS

• Console: Expanded usage reporting coverage and improved billing-related communication templates.

2026 June 3

FEATURES

• MCP API: Expanded orchestration and response-quality safeguards for more reliable automated workflows.

IMPROVEMENTS

• Console & API: Expanded usage measurement coverage for more complete reporting.

2026 June 2

IMPROVEMENTS

• Platform: Improved upload monitoring and scheduling controls to reduce processing at the wrong time.

2026 June 1

FEATURES

• MCP API: Improved sandboxed Python execution and API key handling for safer agent-driven workflows.

IMPROVEMENTS

• Console: Improved how usage credits are presented across pricing and billing surfaces.
• Currencies API: Added high availability guidance and regional endpoint documentation for REST and WebSocket usage so customers can design more resilient failover setups.

BUG FIXES

• Documentation: Corrected API base-URL guidance and related setup messaging.

2026 May 20

IMPROVEMENTS

• Pricing: Published clearer pricing pages for Currencies API, Stock API, Flat Files API, Prediction Markets API, and SEC API, including Pay As You Go usage, committed usage credits that can be spent across eligible products, plan comparisons, and FAQ guidance.

2026 April 29

FEATURES

• Console: Enhanced invoice handling so invoices can be marked void or uncollectible more reliably during payment edge cases.

IMPROVEMENTS

• Console: Refined subscription notification handling so customers are notified only on real subscription state changes.
• Documentation: Fixed website documentation UI issues, including image rendering and code-block display problems.

2026 April 28

IMPROVEMENTS

• Console: Improved subscription-related UI and service handling to reduce failures when account or subscription data is incomplete.

2026 April 24

FEATURES

• MCP API: Added automatic conversation history compaction so long-running AI interactions can continue more reliably without hitting token limits.

IMPROVEMENTS

• MCP API: Enhanced token usage tracking, including cached token accounting, for clearer observability and cost reporting.

2026 April 23

FEATURES

• Prediction Markets API: Added streaming page-by-page processing for paginated data sources, allowing results to become available sooner instead of waiting for full completion.

IMPROVEMENTS

• Console: Refined subscription state handling to avoid duplicate termination notifications and improve customer communication accuracy.
• Flat Files API: Unified Snowflake import behavior for more predictable data loading.

2026 April 22

FEATURES

• MCP API: Added persistent storage and retrieval of executed conversation messages to improve traceability of what happened during each run.
• MCP API: Improved conversation notifications and tracking so stalled conversations can be identified more accurately.

IMPROVEMENTS

• MCP API: Enhanced trace payloads with richer execution context, improving observability for long-running AI workflows.

2026 April 21

FEATURES

• MCP API: Added model pricing details through a dedicated service and API endpoint so pricing information can be exposed more transparently.
• MCP API: Added token usage tracking in AI routing so usage metrics are consistently captured and returned.

2026 April 20

IMPROVEMENTS

• Console: Improved payment webhook reliability by replaying previously undelivered events when the service starts.

2026 April 17

IMPROVEMENTS

• MCP API: Refined conversation compression logic so summaries stay focused on the most relevant information.

2026 April 16

FEATURES

• MCP API: Added a safer cost guard unlock flow so limits can be increased without turning off cost monitoring entirely.
• MCP API: Introduced conversation continuation and compression support so longer AI interactions can keep going more smoothly.

IMPROVEMENTS

• MCP API: Improved input serialization and compression preparation so summaries and follow-up actions are more accurate and less error-prone.

2026 April 15

FEATURES

• MCP API: Added configurable cost guard thresholds in agent templates so spend limits can be managed and communicated more clearly.

IMPROVEMENTS

• MCP API: Improved conversation message ordering and processing so long-running AI conversations stay more coherent and preserve context better.
• MCP API: Updated compression defaults and sender labeling to make conversation histories easier to understand and reduce unnecessary processing.

2026 April 10

IMPROVEMENTS

• Documentation: Refreshed SEC API documentation with new sections, cleaner organization, and improved navigation in the API docs.

2026 March 16

FEATURES

• MCP API: Released major upgrade for our MCP API which is no longer auto generated from our REST API, but instead is crafted in specific for AI Agents to perform as best as possible. This is change across all products: Currencies API, Stock API, Flat Files API, Prediction Markets API and SEC API.

BREAKING CHANGES

• MCP API: SSE MCP (Server Side Events) API is deprecated and will be removed at 2026-04-16. Please change endpoint to Stramable HTTP (/sse -> /mcp) to avoid disruptions.

2026 March 3

FEATURES

• Flat Files API: Added MCP (Model Context Protocol) tools for Flat Files API, enabling AI-powered data access and exploration.

2026 February 17

FEATURES

• Market Data API: Added flat file support for 1SEC OHLCV data with intelligent routing between sub-minute and standard data sources.

BUG FIXES

• Market Data API: Fixed OHLCV 1SEC data loss by replacing per-exchange cutoff with per-symbol last-write-wins buffer and time-delayed flush.

2026 February 6

FEATURES

• Prediction Markets API: Added MCP (Model Context Protocol) support, enabling AI-powered access to prediction markets data.
• Stock API: Added MCP (Model Context Protocol) tools for Stock API.
• Indexes API: Enabled MCP (Model Context Protocol) support for Indexes REST API.
• Exchange Rates API: Added MCP (Model Context Protocol) tools for Exchange Rates API.

IMPROVEMENTS

• Prediction Markets API: Added proactive rate limiting to prevent ClickHouse overload during high-traffic periods.

2026 February 2

FEATURES

• Prediction Markets API: Added historical data endpoints for trades, quotes, and orderbooks with time-range querying capabilities and S3 flat file integration.

IMPROVEMENTS

• Prediction Markets API: Enhanced time-based filtering to use time_coinapi field for more accurate time-range queries.
• Prediction Markets API: Aligned OHLCV endpoint limit validation with market data API standards.

2025 November 27

FEATURES

• Flat Files API: Added support for multipart downloads, enabling efficient retrieval of large files.

IMPROVEMENTS

• Flat Files API: General response times improved across all endpoints.

2025 November 15

IMPROVEMENTS

• Prediction Markets API: Multiple stability, performance and quality improvements.

2025 October 3

FEATURES

• Prediction Markets: Launched Prediction Markets.

2025 September 15

FEATURES

• Flat Files API: Launched Flat Files API with OHLCV 1DAY data support.

2025 September 9

INTEGRATIONS

• Stock API: Added PHILIPPINE STOCK EXCHANGE (XPHS) with supported market data (history since 2019).
• Stock API: Added MADRID STOCK EXCHANGE (XMAD) with supported market data.
• Stock API: Added JOHANNESBURG STOCK EXCHANGE (XJSE) with supported market data (history since 2020).
• Stock API: Added BUDAPEST STOCK EXCHANGE (XBUD) with supported market data.
• Stock API: Added BUCHAREST STOCK EXCHANGE (XBSE) with supported market data (history since 2009).
• Stock API: Added ATHENS STOCK EXCHANGE (ASEX) with supported market data (history since 2020).

2025 August 21

IMPROVEMENTS

• Stock API: Enhanced BACKPACK exchange integration:
  • Improved data quality and reliability
  • Reduced latency for real-time data delivery
  • Optimized market data processing pipeline
  • Enhanced symbol mapping accuracy

2025 August 18

BUG FIXES

• Flat Files API: Fixed issue with file size reporting and download errors:
  • Resolved zero size reporting for market data files from August 1st to August 12th, 2025
  • Fixed download timeout errors for affected files
  • Restored proper access to historical market data files

2025 August 14

INTEGRATIONS

• Stock API: Added TOOTHEMON exchange integration with full market data support.
• Stock API: Added HASHKEY exchange integration with comprehensive market data coverage.

2025 August 13

IMPROVEMENTS

• Currencies API: Enhanced performance and stability for historical data:
  • Optimized response times for historical currency rate queries
  • Improved data consistency and reliability across all time ranges
  • Enhanced stability for high-volume historical data requests
  • Streamlined data delivery for multi-currency historical comparisons

2025 August 4

INTEGRATIONS

• Stock API: Added STOCK EXCHANGE OF THAILAND (XBKK) with EOD OHLCV data availability.

2025 June 22

INTEGRATIONS

• Stock API: Added amaican Stock Exchange (XJAM) with supported market data.

2025 June 18

INTEGRATIONS

• Stock API: Added MOSCOW EXCHANGE - ALL MARKETS (MISX) with supported market data.
• Stock API: Added SIX SWISS EXCHANGE AG (XSWX) with supported market data.
• Stock API: Added HONG KONG EXCHANGES AND CLEARING LTD (XHKG) with supported market data.
• Stock API: Added TAIPEI EXCHANGE (ROCO) with supported market data.

2025 June 17

FEATURES

• MCP: Launched Model Context Protocol (MCP) support across all FinFeedAPI products:
  • Provides machine-readable JSON-Schema manifest describing every endpoint, parameters, and usage.
  • Enables out-of-the-box integration with AI chat models (LLMs) and autonomous agents.
  • Offers a single composite endpoint: https://mcp.api.apibricks.io/mcp for accessing all services.
  • Delivers schema-level validation, catching user errors early and improving reliability.
  • Auto-discovers new API routes and services, removing the need for client-side updates.
  • Maintains the existing authentication mechanism, ensuring a consistent developer experience.

2025 June 13

FEATURES

• Console: Added support for credits with expiration dates.

2025 June 10

IMPROVEMENTS

• SEC API: Added new tutorial "Tesla SEC XBRL Filing Data Analysis and Visualization" demonstrating the XBRL to JSON converter functionality. Available in our GitHub repository.

2025 June 6

FEATURES

• SEC API: Added WebSocket API with Real-time Fillings Feed
• SEC API: Completed XBRL to JSON converter endpoint

IMPROVEMENTS

• Stock API: Now interpreting CFI Codes of symbols in REST API
• SEC API: Renamed "Historical SEC REST API" to "SEC REST API" in documentation to reflect real-time filing updates

INTEGRATIONS

• Stock API: Added TAIWAN STOCK EXCHANGE (XTAI) with EOD OHLCV data availability T+1 since 2004

2025 June 5

IMPROVEMENTS

• Console: Added a new credits summary section in the billing overview for better financial tracking.

2025 May 30

IMPROVEMENTS

• Console: Expanded notification types to include:
  • Credits Added (free, auto recharged, or manually added)
  • Credits Auto Recharge Failed
  • Credits Low Balance
  • API Key First Authorization Failure

2025 May 29

FEATURES

• Console: Enhanced notification system:
  • Users can customize which notifications they want to receive
  • Support for additional email recipients for non-billing and action required notifications
  • Integration capabilities with PagerDuty and Slack channels
  • New notifications history view

2025 May 28

INTEGRATIONS

• Stock API: Added SIX SWISS EXCHANGE AG (XSWX) with EOD OHLCV data availability T+1 since 1997.

2025 May 22

INTEGRATIONS

• Stock API: Added HONG KONG EXCHANGES AND CLEARING LTD (XHKG) with EOD OHLCV data availability T+1 since 2015.

2025 May 20

INTEGRATIONS

• Stock API: Added WARSAW STOCK EXCHANGE/EQUITIES/MAIN MARKET (XWAR) with EOD OHLCV data availability T+1 since 1991.

2025 May 19

FEATURES

• SEC API: Launched new SEC API product with:
  • Initial set of basic tutorials demonstrating API functionality
  • Documentation available at docs.finfeedapi.com/sec-api
  • Example code and tutorials in GitHub repository
  • More features and tutorial content planned for future releases

2025 May 15

INTEGRATIONS

• Stock API: Added TAIPEI EXCHANGE (TPEX/ROCO) with EOD OHLCV data availability T+1 since 2007.

2025 May 14

IMPROVEMENTS

• Console: Added Balance History view showing detailed historical balance changes and transactions.
• SDK & OpenAPI: Released new unified GitHub repository at api-bricks/api-bricks-sdk featuring:
  • Consolidated OpenAPI definitions for all product lines
  • Automated daily updates of OpenAPI definitions
  • Automatic SDK updates on OpenAPI changes
  • Automated package publishing to PyPI, NuGet, and other package managers
  • Legacy and manual SDK support maintained

2025 May 9

INTEGRATIONS

• Stock API: Added SHANGHAI STOCK EXCHANGE (XSHG) with EOD OHLCV data availability T+1 since 1990.
• Stock API: Added SHENZHEN STOCK EXCHANGE (XSHE) with EOD OHLCV data availability T+1 since 1999.

IMPROVEMENTS

• Console & API: Introduced Fractional Billing for Metered Usage.
• Console & API: Enhanced billing logic - customers are not invoiced until becoming Paying Customers after using free credits.
• Console: Added new Metered Usage views:
  • Daily History
  • Monthly Statement
  • Uninvoiced Currently
• Console: Replaced Tax Settings with Tax Registrations in the Invoice Address section.
• Console: Enhanced auto recharge feature:
  • Prioritizes last successful payment method
  • Added support for Direct Debits from bank accounts

2025 April 18

INTEGRATIONS

• Stock API: Expanded End-of-Day integrations by adding the following exchanges: EURONEXT BRUSSELS (ALXB, MLXB, VPXB, XBRU), EURONEXT LISBON – SOCIEDADE GESTORA DE MERCADOS REGULAMENTADOS S.A. (ALXL, ENXL, XLIS), EURONEXT GROUP (ALXP), BORSA ITALIANA S.P.A. (ATFX, BGEM, ETFP, ETLX, EXGM, MIVX, MTAA, MTAH), OSLO BØRS ASA (MERK, XOAS, XOSL), EURONEXT GROWTH DUBLIN (XESM), EURONEXT – EURONEXT AMSTERDAM (XAMS), EURONEXT DUBLIN (XMSM), and EURONEXT PARIS SA (XPAR, XMLI). Data is available for Stocks, Bonds, Funds, and ETFs via the Stock API using the asset_class and symbol_category fields.

FEATURES

• Stock API: Added time-aggregated OHLCV endpoints for historical data. See Historical data.

2025 March 28

BREAKING CHANGES

• Stock Histrical API: Initial API product release. Endpoints: Metadata.
• Stock Histrical API: Added Native Exchange API for IEX Exchange covering Level 1 & 2 & 3, Trades, Admin and System Messages.