Koinly API | Feature requests (public)

Koinly API

Famous Stoat

I'd like a Koinly API so that I could write my own integrations.
I realize that Koinly gets tons of feature/integration request. I'm guessing some smaller crypto coins is down prioritized (if they'll ever happen).
Would be awesome if I could create my own script for such occasions. To pull transactions from one place and then insert them into Koinly.

December 21, 2021

Yucca Emu

this is a huge business opportunity here for Koinly in an AI-first / agentic world- and an easy way to monetize it immediately!

A New Revenue Model: Upfront Annual Cash Flow

Rather than building complex API billing infrastructure, simply gate API / MCP access behind an active upfront purchase of the next tax year’s report:

Solves Revenue Seasonality: Tax software revenue is inherently seasonal (peaking in Q1/Q2). Offering year-round API/MCP access as a premium feature incentivizes power users and developers to pay for their upcoming tax report upfront, providing predictable cash flow early in the cycle.

Dramatically Increases Stickiness & Retention: Once a user connects their AI agents, custom dashboards, or trading scripts to Koinly's endpoints, Koinly becomes the central source of truth for their portfolio. The switching cost becomes extremely high, locking in year-over-year retention.

Outsource Long-Tail Integrations to the Community

Koinly engineering cannot build adapters for every single niche chain, custom exchange, or DeFi protocol fast enough. Giving developers a read/write API enables the community to build and maintain their own connectors, expanding Koinly's total addressable market with zero internal engineering overhead.

Future-Proofing for AI Workflows

As users increasingly manage portfolios using AI agents and tools built on protocols like Model Context Protocol (MCP), programmatic access to consolidated cost-basis and transaction data becomes a core feature. Adding this endpoint positions Koinly as the premier backend for personal AI financial agents.

Win-win: users get real-time integration for their AI stack, and Koinly gets early cash flow, higher LTV, and community-driven expansion.

Competitive Chicken

This would be very useful to be able to read and write via API. I'd even be willing to pay for this! +1

Gunmetal Sailfish

Any update? We need a public API.

Yucca Wombat

Yes, we do need this functionality, either an API or MCP. that we can access our own data and also be able to to write our own interfaces with exchanges that you do not support yet. Especially in the time of AI, this is a must have.

Rose quartz Halibut

+1 this. An API to be able to pull information would be invaluable, or even better, an MCP so that we can connect our AI agents to it to help with consolidation of our financials. This was requested over 2 years ago, so i have no idea why it's taking so long.

Jack

Merged in a post:

API (for transaction data etc.)

Papaya whip Galliform

I would like to have an API to get transaction data etc. from my wallets. This would be very convenient for doing my own reports, visualisation, backup, etc.

March 11, 2026

Physical Grasshopper

Quail Mammal

I need a Koinly API for my crypto agents so that my financial management app can finally access my crypto activities.

It honestly scares me that Koinly doesn't offer an API to this day

Zinc grey Mackerel

I'd love an API from a personal finance perspective because Koinly is the only place where my assets across multiple wallets and blockchains are in one place. Would be really useful to use this as part of a larger personal finance dashboard!

Celadon Mastodon

As a CPA who has over 400 accounts with koinly alone. WE NEED THIS.

we need to be able to pull MASS amounts of data from koinly, after we get data in koinly and corrected.

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