Tucano Proxy
Tucano Proxy is an open-source HTTP/HTTPS debugging proxy with a native CLI, terminal inspector, local web UI, and desktop app.
What Tucano Proxy is
Tucano Proxy is an open-source HTTP/HTTPS debugging proxy with a native CLI, terminal inspector, local web UI, and desktop app. It captures HTTP, HTTPS, and WebSocket traffic through a configurable local MITM proxy. Its inspector shows request and response headers, timing, and bodies, with viewers for formats including JSON, XML, HTML, raw text, hex, images, and forms. Tools for filtering, searching, comparing captures, adding notes and color marks, replaying edited requests, and exporting to cURL, HAR, or Python requests support debugging workflows. The CLI, terminal UI, and web UI share named sessions, and the CLI can run without a graphical session. The standalone service listens on loopback and requires authentication for inspection and changes. Desktop installers are listed for macOS and Windows; CLI releases cover macOS, Linux, and Windows. The project is MIT-licensed and free. Interception can be blocked by certificate pinning, application-specific trust stores, or clients that ignore proxy settings.
Good
- Captures HTTP, HTTPS, and WebSocket traffic.
- Supports edited request replay and capture comparison.
- Offers viewers for multiple body formats.
- Exports to cURL, HAR, and Python requests.
- MIT-licensed and free.
Watch out
- No breakpoint rules or response mocking.
- Alpine/musl is not a listed prebuilt target.
- Some clients cannot be intercepted.
- Redaction does not guarantee anonymity.
Who it suits
Tucano Proxy suits developers who need to inspect and replay web traffic from a CLI, terminal, browser-based interface, or desktop app. Linux users should note that prebuilt CLI targets use glibc, not Alpine/musl.
Verdict
Tucano Proxy combines traffic inspection with replay, comparison, and export tools across several interfaces. Check its interception limits and Linux target requirements against your setup.
Plans and prices
From Tucano Proxy's own pricing page, checked 9 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| MIT License | Free | Open-source software under MIT license |
The facts
Each one read from Tucano Proxy's own pages, with the date it was checked.
What it does
- Certificate handling
- The app can create a root CA and offer OS trust-store installation, while CLI setup treats trust installation as opt-in and ordinary proxy startup does not install a certificate.checked 9 Oct 2026
- Data handling
- Private capture and no-log compose are documented; the security guide cautions that built-in redaction does not reliably sanitize opaque binary bodies or guarantee anonymity.checked 9 Oct 2026
- Distribution
- Native CLI archives include SHA-256 checksums, and documented installers verify checksums before replacing the executable; the security guide says checksums are not independent publisher signatures.checked 9 Oct 2026
- Downloads
- Desktop installers are listed for macOS Apple Silicon and Intel and Windows, while standalone CLI releases include macOS, Linux, and Windows targets.checked 9 Oct 2026
- Inspection
- The inspector displays request and response headers, timing, and bodies, with viewers for JSON, XML, HTML, raw text, hex, images, and forms.checked 9 Oct 2026
- Integrations
- The project documents MCP integration and an installable coding-agent skill; its CLI can open the web inspector in Maestri, Orca, or a system browser.checked 9 Oct 2026
- Interfaces
- CLI, terminal UI, and local web UI share persistent named sessions, and the CLI runs without a graphical session.checked 9 Oct 2026
- License
- The repository identifies the project as MIT-licensed and credits Paulo Cabral.checked 9 Oct 2026
- Limitations
- The security documentation says certificate pinning, application-specific trust stores, and clients that ignore proxy settings can prevent interception.checked 9 Oct 2026
- Local security
- The standalone service listens on loopback and requires authentication for inspection and mutations; the security guide says not to expose it through a tunnel, reverse proxy, or public bind address.checked 9 Oct 2026
- Network changes
- Starting the ordinary proxy does not silently change system proxy settings or install a certificate; certificate trust and system proxy changes are explicit.checked 9 Oct 2026
- Privacy controls
- The product supports private capture and no-log compose; its documentation says built-in redaction does not guarantee anonymity, particularly for opaque binary bodies.checked 9 Oct 2026
- Product
- Tucano Proxy is an open source HTTP/HTTPS debugging proxy with a native CLI, terminal inspector, local web UI, and desktop app.checked 9 Oct 2026
- Purpose
- Tucano Proxy is an open-source HTTP/HTTPS debugging proxy with a native CLI, terminal inspector, local web UI, and desktop app.checked 9 Oct 2026
- Security
- The standalone service listens on loopback and requires authentication for inspection and mutations, with Host and Origin validation for its browser-facing API.checked 9 Oct 2026
- Support and license
- The repository identifies Paulo Cabral as creator and maintainer and licenses the project under MIT; no dedicated support terms are stated on the repository page.checked 9 Oct 2026
- Support and reporting
- For sensitive issues, the project asks users to provide a minimal sanitized reproduction, affected version and platform, observed behavior, and relevant capture IDs through an appropriate private reporting channel.checked 9 Oct 2026
- Traffic capture
- It captures HTTP, HTTPS, and WebSocket traffic through a configurable local MITM proxy.checked 9 Oct 2026
- Workflow
- Features include filtering, capture comparison, search, notes, color marks, editable request replay, and exports including cURL, HAR, and Python requests.checked 9 Oct 2026
Where it runs
- Desktop platforms
- Desktop installers are listed for macOS Apple Silicon and Intel, and Windows; Linux is listed for standalone CLI binaries.checked 9 Oct 2026
- Linux support
- Prebuilt CLI targets include Linux ARM64 and x64 using glibc; Alpine/musl is not listed as a supported prebuilt target.checked 9 Oct 2026
The company
- Maker location
- The maker's GitHub profile lists Rio de Janeiro.checked 9 Oct 2026
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