The Modern
Fixed Income
Data Source
Reference and pricing data on government, corporate and municipal bonds with the simplest API on the market. From sign up to data in minutes.

Why choose Terrapin for your fixed income data needs
We simplify the way institutional investors navigate, explore, and analyze their bond universe. We empower service providers to create the next generation of products.
Flexible licensing
Our licenses are designed to empower our clients rather than restrict them. Share and collaborate with your team, or integrate into client reports without breaking unexpected clauses. Build, analyze, and share without compliance bottlenecks.
Fair pricing
We aim to grow with our clients, so our pricing is designed to adapt to each client's scale and needs. With more features and deeper intelligence, we provide exceptional value without the excessive price tag.
User experience
A modern API with clear docs. Get your data in JSON or CSV via our API, on a per security basis or in bulk. Spend your time researching, not integrating. Get complimentary dedicated onboarding support to ensure speedy and correct integration with your systems.
Client support
Speak directly with the founders and engineers through a dedicated Slack channel. Unlike other providers, our entire team is dedicated to hands-on support, ensuring your data flows smoothly and errors are patched in a timely manner.
Vertical integration
Having built a vertically integrated fixed income data platform, from source collection to extraction to delivery, we are able to offer a unique and comprehensive solution to our clients, without the need for external partners.
Aligned incentives
Unlike most data conglomerates, we are a pure data and research provider with no conflicts of interest, so we can focus on providing the best possible service without imposing artificial barriers.
Trusted by







Solutions for market professionals
We simplify the way institutional investors navigate, explore, and analyze their bond universe. We empower service providers to create the next generation of products.
Fintechs and platforms
Our data API is used by fintechs and platforms to power their research, client interfaces and analytics. We offer flexible distribution rights so that you can focus on building instead of compliance.
Asset managers and hedge funds
Go further with historical pricing and reference data. Generate complex cashflow and analytics to power backtesting, risk management and analytics. Build indices and custom curves to power your portfolio construction.
Municipal credit analysts
Our AI-powered credit intelligence tool, backed by our extensive reference data and official document library, helps you quickly and accurately identify and analyze municipal credit risks, opportunities and trends.
Data Feeds and APIs
Access comprehensive data feeds for government, corporate, and municipal bonds. Our APIs are used by fintechs, asset managers, and hedge funds to power research, client interfaces and analytics.
US Municipal Bonds
In-depth reference and pricing data on over 1.2 million municipal bonds across 50,000+ issuers. Access 60+ data-points including full call, sinking fund and interest payment schedules to accurately model securities at any level - individual, issuer, state, sector, and more. Our data is captured directly from the source OS and disclosures, ensuring timeliness, accuracy and traceability.
Well-suited for:
- • Universe screening and selection
- • Custom indices and benchmarks
- • Yield curve construction
- • Risk management and analytics
Government & Corporate Bonds
Essential data on 35,000+ government and corporate bonds, including reference data, EOD pricing and yields. Government bonds include US Treasuries, Gilts, Bunds and more. Corporate bonds include US and European corporate bonds.
Well-suited for:
- • Tracking of government issues including Treasuries, Gilts and Bunds
- • Integration in user interfaces, client portals and analytics tools
- • Use in client reports
- • Grounding of disparate client data and incoming feeds
Depth and breadth
Basic and complex data fields to get the full picture of each bond
Yield To Maturity (%)
Reference Data
Developer experience
Unmatched accessibility
At Terrapin, everything is built with the end user in mind. Our API is designed to be simple, fast, and easy to use. We provide modern documentation, output in JSON or CSV, and Jupyter notebooks for data exploration.
Onboard and pull the data into your systems in days instead of months.
View API docs$ curl --request POST \
--url "https://terrapinfinance.com/api/v1/bond_reference" \
--header "accept: application/json" --> # text/csv to get CSV response
--header "authorization: Bearer [token]" \
--json '{"isins": ["US912828Y958"]}'
{
"data": [
{
"country_code": "US",
"coupon": 1.875,
"coupon_frequency": 2,
"currency": "USD",
"interest_accrual_convention": "act/act",
"interest_accrual_date": "2019-07-31",
"interest_type": "fixed rate",
"is_callable": false,
"is_inflation_linked": false,
"isin": "US912828Y958",
"issue_date": "2019-07-31",
"issued_amount": 33271236300
"issuer_type": "government",
"lei": "254900HROIFWPRGM1V77",
"maturity_date": "2026-07-31",
"name": "UNITED STATES DEPARTMENT OF THE TREASURY 1.875% 2026",
"sector": "public",
"ticker": "T 1.875 07/31/26",
...
}
],
"total": 1
}
Comparison
Doing things differently
Feature | Terrapin | Traditional Providers |
---|---|---|
First contact to quote | Days | Weeks |
Integration time | Days | Months |
Legal agreement | Light and concise | Restrictive and complex |
How data updates become available | Instantly via API | Nightly in bulk |
Support response | Same day | Days |
Documentation | Interactive & Complete | PDF/Static |
AI-powered analysis
Surface insights from official statements faster
Instantly extract, summarize, and analyze key information from official statements and disclosures using our AI-powered tools. Accelerate your research workflow by surfacing relevant covenants, call features, and financial details in seconds—no more manual searching or endless PDF reviews. Gain actionable insights and make informed decisions faster than ever.
Request access
Gain and edge by developing and deploying proprietary data points
We collaborate directly with clients to develop proprietary, bespoke fields to be extracted across the entire municipal bond universe. Whether you need to track a specific covenant, a unique call schedule, or a custom field, we can help you build and deploy it at scale. No feature is too niche.
Testimonial
Providing exceptional client support
Portfolio Manager at €6bn AUM Asset Management Firm
Frequently Asked Questions
Get answers to common questions about our fixed income data platform
We have full coverage of US Municipal Bonds (1.2M+ securities across 50,000+ issuers), government bonds (US Treasuries, Gilts, Bunds, etc.), with limited coverage of US and European corporate bonds.
Each US municipal bond has over 60 data-points including full call, sinking fund and interest payment schedules to accurately model securities at any level - individual, issuer, state, sector, and more.
Our models and datasets are built by our team of PhDs, engineers and financial professionals.
We are fully vertically integrated, from source collection to extraction to delivery, so we control every step of the process.
Still have questions?
Get in Touch