open-router

name

open-router

description

OpenRouter is a unified API and marketplace that lets developers access, compare, and route requests across hundreds of LLMs based on performance, cost, and availability—simplifying multi-model integration with failover, model/provider selection, and unified billing. Read and write OpenRouter data through One: guardrails, keys, models, credits, activity, responses and more, 36 actions with real parameter documentation. Use whenever the user asks to look something up in OpenRouter, create or update a record there, or build code against the OpenRouter API.

OpenRouter through One

OpenRouter is a unified API and marketplace that lets developers access, compare, and route requests across hundreds of LLMs based on performance, cost, and availability—simplifying multi-model integration with failover, model/provider selection, and unified billing.

One exposes OpenRouter through four MCP tools. The table below carries real action ids from One's knowledge base, so for a common operation you can skip search and go straight to reading the action's parameters.

How to run an action

1. Find the action in the table below, or call search_one_platform_actions with platform open-router if it is not listed.
2. Call get_one_action_knowledge with the action id. Do this every time, including for actions in this table. The table gives you the id, not the parameters.
3. Call execute_one_action with parameters copied from that knowledge.

Never guess a parameter name, a body field, or an enum value. The knowledge has the real schema, and a guessed field is either a 400 or a silent write of the wrong thing.

Before you start

Call list_one_integrations once and confirm OpenRouter is connected. If it is missing, the user has not connected it: say so and point them at https://app.withone.ai rather than reaching for raw HTTP.

Each connection carries an access field. If it reports {"policy": "methods", "methods": ["GET"]} the agent is read-only here, so plan a read-only answer instead of attempting a write that will be refused.

Before a write

Creates, updates, deletes and sends land on a real OpenRouter account and cannot be recalled. State the action and the specific target in one line before the first write in a task, and let the user stop you. Reads need no confirmation.

Actions

Guardrails

Action	Method	Path	Action id
Get a Guardrail by ID	GET	/api/v1/guardrails/{{id}}	conn_mod_def::GJ57k6OO7Qc::2E9_WlS7RVeGusl6cDK2BA
List Guardrails	GET	/guardrails	conn_mod_def::GJ57lGAhsDQ::pLzgaJOwSDCWGX_s82hnRw
Bulk Assign API Keys to a Guardrail	POST	/guardrails/{{id}}/assignments/keys	conn_mod_def::GJ57kwjnTdg::HMgOJobXROKZ99CjWcgUYg
Bulk Unassign API Keys from a Guardrail	POST	/api/v1/guardrails/{{id}}/assignments/keys/remove	conn_mod_def::GJ57km2ykGQ::OyPhkxS2QBG63aBiTr1xbg
Bulk Unassign Members from a Guardrail	POST	/guardrails/{{id}}/assignments/members/remove	conn_mod_def::GJ57k4q-XZo::6Si38h0kTVSP4HF0LOQWyg
Create a Guardrail	POST	/guardrails	conn_mod_def::GJ57k4xU1NM::18iqHj7sTuWwv-v9hIjBjg
Delete a Guardrail	DELETE	/api/v1/guardrails/{{id}}	conn_mod_def::GJ57k5xYgq4::Rytls_GnTJ2Qq1Y6dVxYAQ
Update a Guardrail	PATCH	/api/v1/guardrails/{{id}}	conn_mod_def::GJ57lE49hgA::_ARQSXcGTZeRzXnHeYde0Q

Keys

Action	Method	Path	Action id
Get a Single API Key	GET	/api/v1/keys/{{hash}}	conn_mod_def::GJ57kFgUZuc::ALcrlMIQSlGD7OoSr1RJ3A
List API Keys (Authenticated User)	GET	/keys	conn_mod_def::GJ57kQ_ZXZc::E9fIfQDZTheFB3b248FSJg
Create a New API Key (for the Authenticated User)	POST	/keys	conn_mod_def::GJ57kF7CDBA::98dJK7yxRiqB3XISbnBp6g
Delete an API Key	DELETE	/api/v1/keys/{{hash}}	conn_mod_def::GJ57kGND7kA::3vBUda69S_-1MzaasxDNIA
Update an API Key	PATCH	/api/v1/keys/{{hash}}	conn_mod_def::GJ57kQWdTco::1DK_EwMeS--YcA8YiobLGg

Models

Action	Method	Path	Action id
Get Total Model Count	GET	/models/count	conn_mod_def::GJ57lQzTkyo::n3lkNWUfRUaJKb3NSdEdxg
List a Model’s Endpoints	GET	/api/v1/models/{{author}}/{{slug}}/endpoints	conn_mod_def::GJ57kdVKEog::3WM2Qkd0TfSx-ziwkUfuLw
List Models	GET	/models	conn_mod_def::GJ57lTGC-54::HDw--MPVQxSvWnmhKDlaaw
List Models Filtered for the Current User	GET	/models/user	conn_mod_def::GJ57lRA-CaA::x8qrbFLfSdS-V3LSkYxl3Q

Credits

Action	Method	Path	Action id
Get Remaining Credits	GET	/credits	conn_mod_def::GJ57kdwa6YE::Xh2vQ482RqqTRdO5ESx8mw
Create a Coinbase Charge for Crypto Payment	POST	/credits/coinbase	conn_mod_def::GJ57keZpU58::JC8HQEOETUu35NqzxXxYZQ

Activity

Action	Method	Path	Action id
Get User Activity Grouped by Endpoint	GET	/activity	conn_mod_def::GJ57kFc14DE::ak1FArCQROmel9LVfsOW6A

Responses

Action	Method	Path	Action id
Create a Response	POST	/responses	conn_mod_def::GJ57kP7XRAI::QlAUfFXmQ26X6676w5qd5g

ChatCompletions

Action	Method	Path	Action id
Create a Chat Completion	POST	/chat/completions	conn_mod_def::GJ57kWYcxgI::ubG-NaPYRxKuUV_IpwF2Rg

Embeddings

Action	Method	Path	Action id
Create Embeddings	POST	/embeddings	conn_mod_def::GJ57kekF9d0::9Gv1-KbWTlqzJMrAUMOcYA

Generation

Action	Method	Path	Action id
Get a Generation’s Request & Usage Metadata	GET	/generation	conn_mod_def::GJ57kq2_qhk::BTKpXpKWQGKfNoeP3rOxoA

GuardrailMemberAssignments

Action	Method	Path	Action id
List a Guardrail’s Member Assignments	GET	/guardrails/{{id}}/assignments/members	conn_mod_def::GJ57lGkCzFs::mOabVdQNSQyl2dYvr13LnA

AuthKeys

Action	Method	Path	Action id
Exchange Authorization Code for API Key	POST	/api/v1/auth/keys	conn_mod_def::GJ57lNw1-E4::hfuaRafHQqG1K6DTtdM1pQ

Providers

Action	Method	Path	Action id
List Providers	GET	/providers	conn_mod_def::GJ57lgGxuug::yVJmSvkkQGyljuu6jeiXgw

GuardrailAssignments

Action	Method	Path	Action id
Bulk Assign Members to a Guardrail	POST	/api/v1/guardrails/{{id}}/assignments/members	conn_mod_def::GJ57kpbr4hQ::7pmfh9hmTCqfF-43QMMQQQ

GuardrailAssignmentsKeys

Action	Method	Path	Action id
List Key Guardrail Assignments	GET	/guardrails/assignments/keys	conn_mod_def::GJ57k44t6bs::GsFw0K9MRaCsuXhLxMrkjQ

EmbeddingsModels

Action	Method	Path	Action id
List Embeddings Models	GET	/embeddings/models	conn_mod_def::GJ57keOt3lU::COrR7QNqRPiV6q5qyvbAtQ

GuardrailAssignmentsMembers

Action	Method	Path	Action id
List Member Guardrail Assignments	GET	/guardrails/assignments/members	conn_mod_def::GJ57lFv6bWs::wTZKl3RkR3mVZCEDq5bd9w

AuthKeysCode

Action	Method	Path	Action id
Create Authorization Code (PKCE) for a User-Controlled API Key	POST	/auth/keys/code	conn_mod_def::GJ57lSDJ7r8::S_hvKdFUROOxZ_J-XEXF0g

GuardrailKeyAssignments

Action	Method	Path	Action id
List a Guardrail’s Key Assignments	GET	/guardrails/{{id}}/assignments/keys	conn_mod_def::GJ57lEj_hFQ::mAnxw-QlQ0OFyygMfVAZsw

Endpoints

Action	Method	Path	Action id
List Endpoints Affected by ZDR	GET	/endpoints/zdr	conn_mod_def::GJ57klRyLGs::l-9FKcyUSy-zWgdlqxhFjw

ApiKeys

Action	Method	Path	Action id
Get Current API Key Details	GET	/key	conn_mod_def::GJ57kQGLL1E::2pJDDClCS8ufvtqbuOV4Qg

Messages

Action	Method	Path	Action id
Create a Message (Anthropic Messages Format)	POST	/messages	conn_mod_def::GJ57kIWAfMA::KG7BEH-MTcC_Zcc2QrnHHg

When a call fails

The error comes from OpenRouter, not from One. A 400 or 422 means your parameters do not match the schema, so re-read the knowledge and fix the field. A 401 or 403 means the connection needs re-authorizing, which no retry will fix. A 404 means the id is not on this account. A 429 means slow down. Never retry a write more than once: the first attempt may have landed.

Full catalog: https://www.withone.ai/knowledge/open-router

Integration knowledge by One (withone.ai), licensed under One-Knowledge-1.0. Attribution must be preserved in derivative works.