# Open Source Software
**Last updated:** 14th May 2026
## Acknowledgement
Rezolv AI's products are built on a foundation of open source software. We are deeply grateful to the maintainers, contributors and communities behind the projects listed on this page — their work makes Rezolv possible. This page provides attribution and licence information for the open source components we use in our hosted services and on-premises deliverables.
If you have a question about open source at Rezolv — including requests for written source-offer notices, clarifications about specific components, or notices of licence concerns — please contact us at **opensource@rezolv.com**.
---
## Components
The following open source components are used in Rezolv's products. Version numbers reflect the currently deployed releases and may change as we upgrade.
| Component | Project / Source | Licence |
|---|---|---|
| Go | https://go.dev | BSD-3-Clause |
| React | https://react.dev | MIT |
| React Native | https://reactnative.dev | MIT |
| Expo | https://expo.dev | BSD-3-Clause |
| PostgreSQL | https://www.postgresql.org | PostgreSQL Licence |
| RabbitMQ | https://www.rabbitmq.com | MPL 2.0 (with Apache 2.0 components) |
| Valkey | https://valkey.io | BSD-3-Clause |
| Temporal | https://temporal.io | MIT |
| Docker / Moby | https://github.com/moby/moby | Apache 2.0 |
| Kubernetes | https://kubernetes.io | Apache 2.0 |
| Helm | https://helm.sh | Apache 2.0 |
| containerd | https://containerd.io | Apache 2.0 |
| nginx | https://nginx.org | BSD-2-Clause |
| Prometheus | https://prometheus.io | Apache 2.0 |
| OpenTelemetry | https://opentelemetry.io | Apache 2.0 |
| Jaeger | https://www.jaegertracing.io | Apache 2.0 |
| Fluent Bit | https://fluentbit.io | Apache 2.0 |
| Grafana Loki | https://grafana.com/oss/loki/ | AGPL v3.0 |
| Promtail | https://grafana.com/docs/loki/latest/clients/promtail/ | AGPL v3.0 |
| OpenSSL | https://www.openssl.org | Apache 2.0 (v3.0+) |
| Ubuntu | https://ubuntu.com | Aggregate of upstream licences; refer to each package's `/usr/share/doc/<pkg>/copyright` |
A complete machine-readable Software Bill of Materials (SBOM) for production container images is available to enterprise customers under NDA. Please contact opensource@rezolv.com.
---
## Copyright Notices
The following copyright notices accompany the components listed above. Where a project's NOTICE file lists additional contributors, those notices are preserved in the relevant container images and source distributions.
- **Go:** Copyright (c) 2009 The Go Authors. All rights reserved.
- **React, React Native:** Copyright (c) Meta Platforms, Inc. and affiliates.
- **Expo:** Copyright (c) 650 Industries, Inc.
- **PostgreSQL:** Portions Copyright (c) 1996-2024, The PostgreSQL Global Development Group. Portions Copyright (c) 1994, The Regents of the University of California.
- **RabbitMQ:** Copyright (c) Broadcom Inc. and/or its subsidiaries. All rights reserved.
- **Valkey:** Copyright (c) The Valkey contributors. Originally derived from Redis, Copyright (c) 2006-2020, Salvatore Sanfilippo.
- **Temporal:** Copyright (c) Temporal Technologies Inc. All rights reserved.
- **Docker / Moby:** Copyright (c) Docker, Inc. and contributors.
- **Kubernetes:** Copyright (c) The Kubernetes Authors.
- **Helm:** Copyright (c) The Helm Authors.
- **containerd:** Copyright (c) The containerd Authors.
- **nginx:** Copyright (c) 2002-2021 Igor Sysoev. Copyright (c) 2011-2024 Nginx, Inc.
- **Prometheus:** Copyright (c) The Prometheus Authors.
- **OpenTelemetry:** Copyright (c) The OpenTelemetry Authors.
- **Jaeger:** Copyright (c) The Jaeger Authors.
- **Fluent Bit:** Copyright (c) The Fluent Bit Authors.
- **Grafana Loki, Promtail:** Copyright (c) Grafana Labs.
- **OpenSSL:** Copyright (c) 1999-2024 The OpenSSL Project Authors. All Rights Reserved.
- **Ubuntu:** Copyright (c) Canonical Ltd. Constituent packages are individually copyrighted by their respective authors; refer to each package's copyright file.
---
## Licence Texts
### MIT Licence
```
MIT License
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
```
Applies to: React, React Native, Temporal.
---
### BSD 3-Clause Licence
```
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
```
Applies to: Go, Expo, Valkey.
---
### BSD 2-Clause Licence
```
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
```
Applies to: nginx.
---
### PostgreSQL Licence
```
PostgreSQL Database Management System
(formerly known as Postgres, then as Postgres95)
Portions Copyright (c) 1996-2024, The PostgreSQL Global Development Group
Portions Copyright (c) 1994, The Regents of the University of California
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose, without fee, and without a written agreement
is hereby granted, provided that the above copyright notice and this
paragraph and the following two paragraphs appear in all copies.
IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION,
EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS,
AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE,
SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
```
Applies to: PostgreSQL.
---
### Apache Licence, Version 2.0
```
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction, and
distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by the
copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all other
entities that control, are controlled by, or are under common control with
that entity. For the purposes of this definition, "control" means (i) the
power, direct or indirect, to cause the direction or management of such
entity, whether by contract or otherwise, or (ii) ownership of fifty
percent (50%) or more of the outstanding shares, or (iii) beneficial
ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity exercising
permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation source,
and configuration files.
"Object" form shall mean any form resulting from mechanical transformation
or translation of a Source form, including but not limited to compiled
object code, generated documentation, and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or Object form,
made available under the License, as indicated by a copyright notice that
is included in or attached to the work.
"Derivative Works" shall mean any work, whether in Source or Object form,
that is based on (or derived from) the Work and for which the editorial
revisions, annotations, elaborations, or other modifications represent, as
a whole, an original work of authorship. For the purposes of this License,
Derivative Works shall not include works that remain separable from, or
merely link (or bind by name) to the interfaces of, the Work and Derivative
Works thereof.
"Contribution" shall mean any work of authorship, including the original
version of the Work and any modifications or additions to that Work or
Derivative Works thereof, that is intentionally submitted to Licensor for
inclusion in the Work by the copyright owner or by an individual or Legal
Entity authorized to submit on behalf of the copyright owner. For the
purposes of this definition, "submitted" means any form of electronic,
verbal, or written communication sent to the Licensor or its
representatives, including but not limited to communication on electronic
mailing lists, source code control systems, and issue tracking systems
that are managed by, or on behalf of, the Licensor for the purpose of
discussing and improving the Work, but excluding communication that is
conspicuously marked or otherwise designated in writing by the copyright
owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity on
behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of this
License, each Contributor hereby grants to You a perpetual, worldwide,
non-exclusive, no-charge, royalty-free, irrevocable copyright license to
reproduce, prepare Derivative Works of, publicly display, publicly perform,
sublicense, and distribute the Work and such Derivative Works in Source or
Object form.
3. Grant of Patent License. Subject to the terms and conditions of this
License, each Contributor hereby grants to You a perpetual, worldwide,
non-exclusive, no-charge, royalty-free, irrevocable (except as stated in
this section) patent license to make, have made, use, offer to sell, sell,
import, and otherwise transfer the Work, where such license applies only
to those patent claims licensable by such Contributor that are necessarily
infringed by their Contribution(s) alone or by combination of their
Contribution(s) with the Work to which such Contribution(s) was submitted.
If You institute patent litigation against any entity (including a cross-
claim or counterclaim in a lawsuit) alleging that the Work or a
Contribution incorporated within the Work constitutes direct or
contributory patent infringement, then any patent licenses granted to You
under this License for that Work shall terminate as of the date such
litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the Work or
Derivative Works thereof in any medium, with or without modifications, and
in Source or Object form, provided that You meet the following conditions:
(a) You must give any other recipients of the Work or Derivative Works a
copy of this License; and
(b) You must cause any modified files to carry prominent notices stating
that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works that You
distribute, all copyright, patent, trademark, and attribution notices
from the Source form of the Work, excluding those notices that do not
pertain to any part of the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its distribution,
then any Derivative Works that You distribute must include a readable
copy of the attribution notices contained within such NOTICE file,
excluding those notices that do not pertain to any part of the
Derivative Works, in at least one of the following places: within a
NOTICE text file distributed as part of the Derivative Works; within
the Source form or documentation, if provided along with the
Derivative Works; or, within a display generated by the Derivative
Works, if and wherever such third-party notices normally appear. The
contents of the NOTICE file are for informational purposes only and do
not modify the License. You may add Your own attribution notices
within Derivative Works that You distribute, alongside or as an
addendum to the NOTICE text from the Work, provided that such
additional attribution notices cannot be construed as modifying the
License.
You may add Your own copyright statement to Your modifications and may
provide additional or different license terms and conditions for use,
reproduction, or distribution of Your modifications, or for any such
Derivative Works as a whole, provided Your use, reproduction, and
distribution of the Work otherwise complies with the conditions stated in
this License.
5. Submission of Contributions. Unless You explicitly state otherwise, any
Contribution intentionally submitted for inclusion in the Work by You to
the Licensor shall be under the terms and conditions of this License,
without any additional terms or conditions. Notwithstanding the above,
nothing herein shall supersede or modify the terms of any separate license
agreement you may have executed with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade names,
trademarks, service marks, or product names of the Licensor, except as
required for describing the origin of the Work and reproducing the content
of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or agreed to in
writing, Licensor provides the Work (and each Contributor provides its
Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
ANY KIND, either express or implied, including, without limitation, any
warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or
FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for
determining the appropriateness of using or redistributing the Work and
assume any risks associated with Your exercise of permissions under this
License.
8. Limitation of Liability. In no event and under no legal theory, whether in
tort (including negligence), contract, or otherwise, unless required by
applicable law (such as deliberate and grossly negligent acts) or agreed
to in writing, shall any Contributor be liable to You for damages,
including any direct, indirect, special, incidental, or consequential
damages of any character arising as a result of this License or out of the
use or inability to use the Work (including but not limited to damages for
loss of goodwill, work stoppage, computer failure or malfunction, or any
and all other commercial damages or losses), even if such Contributor has
been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing the Work
or Derivative Works thereof, You may choose to offer, and charge a fee
for, acceptance of support, warranty, indemnity, or other liability
obligations and/or rights consistent with this License. However, in
accepting such obligations, You may act only on Your own behalf and on
Your sole responsibility, not on behalf of any other Contributor, and only
if You agree to indemnify, defend, and hold each Contributor harmless for
any liability incurred by, or claims asserted against, such Contributor by
reason of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
```
Applies to: Docker / Moby, Kubernetes, Helm, containerd, Prometheus, OpenTelemetry, Jaeger, Fluent Bit, OpenSSL (v3.0+).
---
### Mozilla Public Licence 2.0
The Mozilla Public Licence 2.0 governs the use of RabbitMQ. The full licence text is available at:
**https://www.mozilla.org/en-US/MPL/2.0/**
MPL 2.0 is a "file-level" weak copyleft licence: modifications to MPL-licensed source files must be made available under MPL when distributed. Rezolv uses RabbitMQ without modification.
---
### GNU Affero General Public Licence v3.0
The GNU Affero General Public Licence v3.0 governs the use of Grafana Loki (from v3.0 onwards) and Promtail. The full licence text is available at:
**https://www.gnu.org/licenses/agpl-3.0.html**
Rezolv uses Loki and Promtail without modification.
---
### Ubuntu (Aggregate Licensing)
Ubuntu is a Linux distribution composed of many independently licensed software packages. The licence of each individual component is preserved in `/usr/share/doc/<package>/copyright` within the operating system image and in our container base images. Canonical's general documentation of Ubuntu's licensing is available at **https://ubuntu.com/legal/intellectual-property-policy**.
---
## A Note on Modifications
Rezolv uses all of the components listed on this page in their unmodified upstream form. We do not maintain forks of any of the above projects in production. Where we contribute upstream, we do so under each project's contribution terms.
## Source Code Availability
For any component on this page that is licensed under MPL 2.0, AGPLv3, or any other licence that may require a written offer to provide source code, Rezolv will provide on request a copy of the corresponding source code as obtained from the upstream project. Please direct such requests to **opensource@rezolv.com**.
## Contact
**opensource@rezolv.com** — questions, source-offer requests, or notices regarding this page.
---
*This page is maintained as part of Rezolv AI's open source compliance programme. It is updated when the underlying component inventory changes.*