Openrouter

Routes prompts across any LLM provider through a single API, monitors credit spend in real time, and switches models automatically based on performance or cost.

Try Openrouter in Ceven

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Why use Ceven?

  1. AI native Openrouter integration

    • Describe the outcome and Ceven picks the right Openrouter calls, fills the parameters, and checks the result.
    • Structured, agent friendly tool schemas so each call runs reliably instead of by guesswork.
    • Rich coverage for reading, writing, and querying your Openrouter data, across all 13 of its actions.
  2. Managed auth

    • Built in OAuth with automatic token refresh and rotation.
    • One place to manage, scope, and revoke Openrouter access.
    • Per user and per environment credentials instead of shared keys.
  3. Agent optimized design

    • Actions are tuned from real success and error rates so reliability climbs over time.
    • Full execution logs so you always know what ran in Openrouter, when, and on whose behalf.
    • The agent pauses and asks when Openrouter is unclear instead of plowing ahead.
  4. Enterprise grade security

    • Fine grained access so you control which agents and people can reach Openrouter.
    • Least privilege by default, read scopes first and only the writes a workflow needs.
    • A full audit trail of every Openrouter action to support review and sign off.

Supported tools

Every action Ceven's agents can run on Openrouter, and when to use it.

Create Chat Completion
Use this when you need a conversational response. Pass a message array and a model string to generate a chat style output.
Create Completion
Use this for raw text generation or completion tasks where a chat format is not required.
Get Credits
Pull the current API credit balance for the account to monitor spending and prevent service interruptions.
Get Generation
Retrieve a specific generation result by ID to check token counts, cost, and latency metrics.
List Available Models
Fetch the full catalog of models available through the API to identify new releases or cheaper options.
List Model Endpoints
Pull endpoint details for a specific model including pricing, context window, and supported parameters.
List Providers
Retrieve all AI model providers available for routing configuration and provider preference settings.
Route Prompt to Cheapest
Search available models for the lowest cost per million tokens that meets a minimum capability threshold.
Check Model Latency
Pull current performance metrics for a specific model endpoint to determine if a fallback is needed.
Update Model Preference
Manage which provider is preferred for a specific model slug to optimize for speed or reliability.
Validate Prompt Tokens
Calculate the token count of a prompt before sending it to ensure it fits the model context length.
Compare Model Outputs
Send the same prompt to multiple models and return the results for side by side quality evaluation.
OpenRouter List Model Endpoints
Tool to list endpoints for a specific model. use after specifying model author and slug to get endpoint details including pricing, context length, and supported parameters.
OpenRouter List Providers
Tool to list all ai model providers available through the openrouter api. use after authentication to retrieve available provider options for routing configuration.

14 actions · scroll to see them all

Frequently asked questions

Ceven treats OpenRouter as a switchboard. You can either specify a exact model slug or tell the agent to optimize for a specific metric like cost or speed. When you choose optimization, the agent calls the model list and endpoint details to find the best match. If a chosen provider is experiencing a spike in latency or returns a 500 error, Ceven can be configured to automatically try the next best provider for that same model. This ensures your workflows do not stop just because one specific provider is having an outage, which is a primary advantage of using a unified API layer.
Yes. Ceven uses the Get Generation tool to pull metadata for every single request. This includes the exact token count for the prompt and the completion, as well as the cost in USD. Because Ceven logs these responses, you can build a dashboard within your workflow to see exactly how much a specific project or client is costing you in AI spend. You can set up an alert that triggers when your OpenRouter credit balance drops below a certain threshold, allowing you to top up your account before your production agents stop responding to users.
OpenRouter supports streaming, but the way Ceven handles it depends on the endpoint. For standard workflow steps, Ceven waits for the full completion to ensure the data can be parsed and passed to the next step in the chain. However, if you are using the agent in a live chat interface, Ceven can pass the stream through to the end user in real time. This reduces the perceived latency for the user while the agent continues to process the full response in the background for logging and auditing purposes within the Ceven platform.
You can use any model listed in the OpenRouter catalog, but be aware that some models have provider specific constraints. For example, some frontier models may have strict rate limits or require a higher tier of account access on the provider side. OpenRouter simplifies this, but if a model is gated or requires a specific payment tier, the API will return a 403 or 429 error. Ceven handles these errors by notifying the user or switching to a different provider that offers the same model without those specific restrictions, provided you have the credits available.
Every model has a different maximum context length. Ceven uses the List Model Endpoints tool to check the current limit for your selected model. If your prompt and history exceed that limit, the agent will automatically apply a truncation strategy or summarize the earlier parts of the conversation to fit the window. This prevents the API from returning a length error. You can customize this behavior in the workflow settings by choosing whether the agent should prioritize the most recent messages or a specific set of system instructions when trimming the context.
OpenRouter acts as a proxy between you and the model providers. Whether your data is used for training depends on the specific provider and the settings you have configured in your OpenRouter account. Some providers opt out of training by default for API users, while others may have different policies. We recommend checking the provider details within the OpenRouter dashboard to confirm the privacy settings for each model you use. Ceven does not add any additional training layers to the data it sends through the OpenRouter API.
If your OpenRouter account hits a zero balance, the API will return an error for all subsequent requests. Ceven will capture this error and can be programmed to trigger a specific failure path. For example, you can set up a workflow that sends a Slack notification to your admin team the moment a credit error is detected. Once you add credits to your OpenRouter account, the agent will automatically resume successful completions on the next retry without needing any reconfiguration of the workflow logic.
Yes, this is one of the strongest use cases for the integration. You can create a loop in Ceven that sends a single input to multiple versions of a model, such as GPT 3.5 and GPT 4, and saves the outputs to a table. This allows you to perform a side by side comparison of the quality and cost for each version. You can then use a more capable model as a judge to score the outputs of the cheaper models, helping you find the most cost effective model that still meets your quality bar for a specific task.

Alternatives to Openrouter

Other tools that solve a similar problem. Ceven supports these too, so you can switch or run more than one at once.

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