Hurl is a free, open-source, Apache-2.0-licensed, Rust-based command-line tool for running and testing HTTP requests from plain-text files; SQD is a…
Best for Hurl: Hurl fits developers and QA/CI teams who need a lightweight, dependency-free command-line tool to define, chain, and assert HTTP requests (REST, GraphQL, SOAP) in plain text, especially in automated pipelines.
Best for SQD: SQD fits teams and applications that need real-time or historical blockchain data across a large number of networks (225+), whether starting from the free public API or scaling to a dedicated enterprise data portal.
At a Glance
Hurl
SQD
Primary category
API Tools
API Tools
Rating
Not documented
Not documented
Pricing model
Open Source
open-source
Starting price
Free
Free (open-source SDK; Cloud usage-based pricing)
Free plan
Not documented
Not documented
Free trial
Not documented
Not documented
Platforms
Mac, Windows
Not documented
Team collaboration
Not documented
Not documented
AI features
Not documented
Not documented
Public API
Yes
Yes
Key Differences
Product Category
Hurl: Hurl is a generic HTTP request-testing CLI tool usable against any REST, GraphQL, or SOAP API.
SQD: SQD is a specialized blockchain data provider covering 225+ networks.
They aren't competing for the same buyer -- one is testing infrastructure, the other is a data source.
Pricing
Hurl: Hurl is entirely free and open source with no usage limits.
SQD: SQD offers a free public API alongside paid dedicated enterprise data portals for larger deployments.
Hurl has zero cost regardless of scale, while SQD's cost can grow with enterprise-level data needs.
What Data or Function Is Provided
Hurl: Hurl provides no data itself -- it's a testing tool that sends requests and validates responses via XPath, JSONPath, status codes, and headers.
SQD: SQD directly provides real-time and historical blockchain data as its core product.
Hurl requires an existing API to test against, whereas SQD is itself the API and data source.
Deployment Model
Hurl: Hurl is a single Rust binary with no runtime dependencies, run locally or in CI.
SQD: SQD is a hosted API/data service (free public API or enterprise portals), not something installed locally.
Hurl requires no infrastructure to operate, while SQD's core value depends on its hosted network coverage.
Community & Maturity Signals
Hurl: Hurl has around 19,000 GitHub stars and is actively maintained with frequent releases.
SQD: Not documented -- no GitHub star count, founding year, or company details are provided for SQD in the available data.
Visible open-source traction like Hurl's star count gives buyers a maturity signal that isn't available for SQD.
Feature-by-Feature
Core Function
Feature
Hurl
SQD
HTTP request testing/assertions
Available
Not documented
Blockchain data (real-time/historical)
Unavailable
Available
Multi-network coverage
Not documented
Available
Access & Cost
Feature
Hurl
SQD
Free tier/plan
Available
Available
Enterprise/paid option
Unavailable
Available
Self-run/local execution
Available
Not documented
Developer Tooling
Feature
Hurl
SQD
CI/CD reporting (JUnit, TAP, HTML)
Available
Not documented
Open-source license
Available
Not documented
Multi-API protocol support (REST, GraphQL, SOAP)
Available
Not documented
Pricing Compared
Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.
Completely free and open source with no paid tiers or limits
Lightweight single binary with no scripting language or GUI required
Powerful built-in assertions make it a genuine API testing tool, not just a request runner
Plain-text format is easy to version control, review, and diff
Backed and actively maintained by Orange with a stable release history since 2020
Cons
Smaller plugin and template ecosystem compared to Postman or Insomnia
No polished graphical interface, which can be a barrier for non-technical testers
Steeper learning curve for complex chained scenarios compared to point-and-click tools
Limited built-in mocking or virtualization capabilities
Less mainstream brand recognition than established API tools like Postman
SQD
Pros
Core SDKs and data access are free and open source
Very low latency and high data correctness for on-chain queries
Single API covers 225-plus networks instead of separate integrations
Self-hosting option available for teams wanting full control
Used in production by well-known DeFi protocols managing billions in TVL
Cons
Cloud pricing is usage-based and less predictable than flat subscription tools
Recent acquisition by Rezolve Ai introduces uncertainty about product direction
Primarily targeted at Web3 and blockchain developers, not a general-purpose tool
Requires technical setup and indexing knowledge to get full value
Company size and support structure post-acquisition are not publicly detailed
Use Cases
Choose Hurl: Hurl fits developers and QA/CI teams who need a lightweight, dependency-free command-line tool to define, chain, and assert HTTP requests (REST, GraphQL, SOAP) in plain text, especially in automated pipelines.
Choose SQD: SQD fits teams and applications that need real-time or historical blockchain data across a large number of networks (225+), whether starting from the free public API or scaling to a dedicated enterprise data portal.
Need both: A team building an application on SQD's blockchain data API could use Hurl to write CI/CD tests that verify SQD API responses, status codes, and payload structure as part of their integration testing pipeline.
Hurl
API Testing in CI/CD Pipelines — Run automated HTTP assertion tests on every commit or deployment as part of a build pipeline.
Quick HTTP Request Scripting — Script and chain HTTP requests in plain text for debugging or exploring an API without writing code.
Contract and Regression Testing — Maintain version-controlled test suites that validate REST and GraphQL API responses over time.
SQD
DeFi protocol data indexing — Protocols index on-chain events like swaps, deposits, and liquidations in real time to power dashboards and risk systems.
Blockchain analytics platforms — Analytics products query historical and real-time on-chain data across many networks through a single API instead of managing separate RPC integrations.
AI agents needing on-chain data — AI agents use validated, low-latency on-chain data feeds to make trustworthy decisions involving blockchain state.
Frequently Asked Questions
Are Hurl and SQD competing products?
No -- Hurl is a generic HTTP API testing CLI tool, while SQD is a specialized blockchain data provider; they serve entirely different purposes.
Is Hurl free like SQD's public API?
Yes, Hurl is completely free and open source under Apache-2.0 with no usage limits; SQD also offers a free public API but adds paid dedicated enterprise data portals for larger deployments.
How many blockchain networks does SQD cover?
SQD provides real-time and historical data across more than 225 networks.
Could I use Hurl to test an application built on SQD's API?
Yes, Hurl's request-chaining and response-assertion features (XPath, JSONPath, status codes) make it suitable for writing CI/CD tests against any HTTP API, including one built on SQD's data endpoints.
Does SQD have a command-line testing tool like Hurl?
This isn't documented -- SQD's focus is providing blockchain data via API and enterprise portals, not developer testing tooling.