Call Hermes models through the API for chat completions
Send chat completions requests in an OpenAI-compatible format to get model responses
Best for：Developers
AI Infrastructure / API
Nous Research API
Nous Research API is an OpenAI-compatible inference service that provides API access to the Hermes model series and some third-party models through Nous Portal.
Product type: AI Infrastructure ToolPricing: UnknownAPIMaster integration: Unknown
Website created
2023-03-22
OpenRouter token usage rank
#17
Source: OpenRouter
Monthly unique visitors
2.377M
Source: SimilarWeb
Overview
This product is a model inference interface launched by Nous Research. Users must register at portal.nousresearch.com, obtain an API key, and add credits before they can use it. It is called through standard chat completions and completions endpoints, with the base URL set to https://inference-api.nousresearch.com/v1, and supports models such as Hermes-3-Llama-3.1-405B. Its core strengths are an inference system based on MCTS, CoC, and MoA architectures, while also aggregating access to multiple models and providing a Tool Gateway for proxy integration. It is suitable for developers who need to embed Nous models into applications or agents, as well as AI builders seeking a single account to manage multiple models. Compared with pure model hosting services, it places more emphasis on a portal-style unified entry point and tool aggregation.
One-line summary
Nous Research API is an OpenAI-compatible inference service that provides API access to the Hermes model series and some third-party models through Nous Portal.
What people use it for
Users use it to replace OpenAI calls in code to run Hermes models for conversation or generation tasks, and also configure it as the model provider for Hermes Desktop or agent tools to enable automatic switching.
Best for
AI application teams, platform engineers, and infrastructure leads
How it works
Users typically access the product through the API, then call its built-in capabilities around specific tasks to complete their work.
Quick facts
Product type
AI Infrastructure Tool
Pricing
Unknown
The current enhanced batch dataset does not maintain real-time pricing for this product. Please refer to the official website or official documentation.
APIMaster integration
Unknown
Pending verification
Data confidence
Low
Last verified: 2026-08-30
Core features and differentiators
OpenAI-compatible completions and chat completions interface
Supports direct calls to Nous Research models using the standard OpenAI format
Integrated MCTS, CoC, and MoA inference architectures
Generates complex responses through Monte Carlo Tree Search, Chain of Code, and Mixture of Agents
Provides designated models such as Hermes 3 Llama 70B
Initially supports the Hermes 3 Llama 70B and DeepHermes 3 8B Preview models
Nous Portal manages API keys and credits
Create keys and view balances through the portal, with an initial $5 in free credits
Inference API directly serves Nous models
An inference service endpoint designed specifically for Nous Research models
What is Nous Research API best for?
Integrate the Nous API into an Agent as the model backend
Connect the API to Hermes Agent or similar tools to execute long-running tasks
Best for：AI developers
Use architectures such as MCTS to handle complex reasoning queries
Submit problems that require multi-step reasoning and get outputs based on MCTS/CoC/MoA
Best for：Researchers
Purchase credits and monitor API usage through the Portal
After creating a key, top up credits, and consume the corresponding quota when calling the API
Best for：Developers
Third-party key setup for Nous Research API (APIMaster integration)
We do not yet have reliable evidence that this product supports third-party keys, proxies, custom providers, or a custom base URL, so we do not show speculative setup steps or config values.
Community discussion
Discussion summary
Users generally understand Nous Research API as an OpenAI-compatible inference service, mainly used to access the Hermes model series and Agent tools, with support for architectures such as MCTS, CoC, and MoA to improve reasoning capabilities. Discussion focuses on how the API is used with Agent frameworks, free credits and subscription management, and comparisons with other providers. Users also often share hands-on integration experience with local or desktop Agents, as well as the access flow for the portal website.
Most discussed topics
- 1
How can Nous Research API power Hermes Agent?
Users ask about API key applications, model configuration, tool integration, and prompt writing, with discussion focused on Agent memory, skill persistence, and multi-tool calling.
- 2
How do the free credits and paid plans for Nous Research API work?
Users discuss free model access, credit consumption, subscription switching, and ways to avoid extra API key management.
- 3
How does Nous Research API compare with OpenRouter or other providers?
Users compare response speed, cost, compatibility, and model quality, and share switching scenarios and real-world experience.
- 4
How can portal website and UX issues in Nous Research API be resolved?
Users report confusion around the signup flow, UI navigation, and account settings, and discuss how to simplify access and avoid credit card requirements.
- 5
What Agent development scenarios is Nous Research API suitable for?
Users share applications in code generation, research, automation, and browser operations, and discuss the advantages of unified management through the tool gateway.
FAQ
What type of product is Nous Research API?
We currently classify it under "AI Infrastructure / API", and the page description is based on public materials such as the official website and OpenRouter.
What is Nous Research API suitable for?
The enhanced page for Nous Research API prioritizes the core tasks and use cases that have already been collected, helping you quickly judge whether it matches your current needs.
Can Nous Research API be integrated directly with APIMaster now?
There is currently no reliable source confirming that the product supports third-party Keys or custom compatible endpoints, so the page status is shown as pending verification.
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Sources：Official website
Last verified: 2026-08-30 · Report a correction