Connectors · Developer & infrastructure
CircleCI MCP server for AI agents.
actionlake is an MCP gateway: one remote MCP server that connects Claude and other MCP clients to CircleCI and the rest of your systems. It gives your agent 114 CircleCI actions (64 reads, 29 writes and 21 that wait for a confirmation) and holds the CircleCI credential itself, so the agent never does. It paces CircleCI's limits and records every call.
100,000 free calls a month. No card, no email, no password: press Start a free sandbox on the next screen and keep the key it shows you.
claude mcp add --transport http actionlake https://connect.actionlake.com/mcpdo { action: "circleci.pipelines.list", intent: "check which CircleCI account is connected"}# Get a list of pipelines · read · 1 upstream call- 114actionsin one signed file
- 64readlook, never change
- 29writecreate and update
- 21wait for a yesdestructive, confirmed first
Set up
Connect CircleCI in three steps.
- 01
Add actionlake to Claude.
Run the command once in Claude Code; its consent page can create a free sandbox: 100,000 calls a month, no card. In the Claude app, add a custom connector with the URL below and paste your key on the consent page. Creating a new sandbox from the Claude app is not yet tested by us.
https://connect.actionlake.com/mcp - 02
Connect CircleCI.
API key. No consent screen: your agent can connect it for you, but the key then passes through your chat. To keep it out of the model's context, paste it in the console instead. actionlake stores what you paste write-only, sealed under your tenant's key.
api_tokenCircleCI personal API token
account { op: "connections.requirements", service: "circleci" } # free: exactly what to paste, and what is found for you - 03
Make the first call. Check before a write.
Ask in plain words; Claude picks the action. Before anything changes,
checkvalidates the call and prices it, for free.do { action: "circleci.pipelines.list" }# get a list of pipelines · read · 1 upstream callcheck { action: "circleci.groups.create", input: { … } }# free: inputs, permissions, cost and confirmations, nothing sent
CircleCI at a glance
- Sign-in
- API key. No consent screen: your agent can connect it for you, but the key then passes through your chat. To keep it out of the model's context, paste it in the console instead.
- You provide
api_token- Limits we pace to
- 10 calls a second, per connection
- API covered
- CircleCI API v2 (OpenAPI 3.0.3, info.version v2)
circleci.com/api/v2 - Built from
- CircleCI's documentation, read 22 October 2026circleci.comcircleci.com
- Service file
- Version 1.0.0, signed (Ed25519)
- Cached reads
- 62 of 64 reads, for up to 5 minutes; a write clears what it affects
- Shared entities
- 4, so ask can line CircleCI up with your other systems
- Data
- Processed and stored in Sydney, Australia. No US region yet
Capabilities
What an AI agent can do in CircleCI.
114 actions in 36 areas. Every one carries its effect, so a key can allow the reads and hold the rest.
- 64readlook, never change
- 29writecreate and update
- 21destructivewait for a confirmation
Insights
1010 read · 0 write · 0 destructive
Job timeseries data · Get summary metrics for a project workflow's jobs. · Get recent runs of a workflow · Get summary metrics for a project's workflows
Pipeline definitions
52 read · 2 write · 1 destructive
Create pipeline definition · List pipeline definitions · Get pipeline definition · Update pipeline definition
Pipelines
54 read · 1 write · 0 destructive
Get a list of pipelines · Get a pipeline by ID · Continue a pipeline · Get a pipeline's configuration
Project pipelines
53 read · 0 write · 2 destructive
Get all pipelines · [Recommended] Trigger a new pipeline · Trigger a new pipeline · Get your pipelines
Schedules
52 read · 2 write · 1 destructive
List schedule triggers · Create a schedule · Update a schedule · Get a schedule by ID. Available only on schedules associated with GitHub OAuth or Bitbucket Cloud pipeline definitions.
Triggers
52 read · 2 write · 1 destructive
List pipeline definition triggers · Create trigger · Get trigger · Update trigger
Webhooks
52 read · 2 write · 1 destructive
Create an outbound webhook · List webhooks · Update an outbound webhook · Get a webhook
Checkout keys
42 read · 1 write · 1 destructive
Create a new checkout key · Get all checkout keys · Get a checkout key · Delete a checkout key
28 more areas · 70 actions
- Contexts 4
- Groups 4
- Policy decisions 4
- Project env vars 4
- Projects 4
- Workflows 4
- Context env vars 3
- Context restrictions 3
- Oidc org claims 3
- Oidc project claims 3
- Organizations 3
- Otel exporters 3
- Policy bundles 3
- URL orb allow list 3
- Deploy components 2
- Deploy environments 2
- Jobs 2
- Me 2
- Policy decision settings 2
- Project jobs 2
- Project settings 2
- Usage exports 2
- Deploy component versions 1
- Job artifacts 1
- Job tests 1
- Pipeline workflows 1
- Users 1
- Workflow jobs 1
Top actions
The CircleCI API, shaped for agents.
The ids your agent types, what each does, and the one name it shares with other systems. 39 of CircleCI's 39 action names are shared with at least one other connector, so an agent learns them once.
| Action | What it does | Effect | Same name in |
|---|---|---|---|
circleci.job_artifacts.listGet a job's artifacts | Get a job's artifacts. | read | devops.artifact.list17 connectors |
circleci.groups.listGroups in an organization | Groups in an organization. | read | identity.group.list262 connectors |
circleci.me.getUser Information | User Information. | read | identity.current_user.get307 connectors |
circleci.groups.createCreate Groups | Create Groups. | write | identity.group.create205 connectors |
circleci.schedules.listList schedule triggers | List schedule triggers. | read | automation.schedule.list18 connectors |
circleci.groups.deleteDelete a group | Delete a group. | destructive | identity.group.delete181 connectors |
circleci.deploy_environments.listList Environments | List Environments. | read | devops.environment.list24 connectors |
circleci.pipelines.listGet a list of pipelines | Get a list of pipelines. | read | devops.pipeline_run.list13 connectors |
circleci.project_pipelines.listGet all pipelines | Get all pipelines. | read | devops.pipeline_run.list13 connectors |
circleci.workflow_jobs.listGet a workflow's jobs | Get a workflow's jobs. | read | devops.pipeline_job.list9 connectors |
circleci.webhooks.createCreate an outbound webhook | Create an outbound webhook. | write | automation.webhook.create209 connectors |
circleci.schedules.createCreate a schedule | Create a schedule. | write | automation.schedule.create16 connectors |
Try it
Prompts to paste into Claude.
Each one names the CircleCI actions it will call, so you know what it reads and what it changes before you send it.
- Readread
List the CircleCI groups and how many members each one has.
calls
circleci.groups.list - Writewrite
Create Groups in CircleCI. Show me exactly what you will send before you save it.
calls
circleci.groups.create
Governance for CircleCI
Destructive actions wait for a yes.
21 CircleCI actions are destructive. These are all of them:
- Delete a group
circleci.groups.delete - Delete an outbound webhook
circleci.webhooks.delete - [Recommended] Trigger a new pipeline
circleci.project_pipelines.run - Trigger a new pipeline
circleci.project_pipelines.trigger - Cancel a workflow
circleci.workflows.cancel - Delete a schedule
circleci.schedules.delete - Cancel job by job ID
circleci.jobs.cancel - Cancel job by job number
circleci.project_jobs.cancel - Delete trigger
circleci.triggers.delete - Delete an environment variable
circleci.project_env_vars.delete - Delete a context
circleci.contexts.delete - Delete a project
circleci.projects.delete - Delete a checkout key
circleci.checkout_keys.delete - Delete an organization
circleci.organizations.delete - 🧪 Delete an OTLP exporter
circleci.otel_exporters.delete - Delete org-level claims
circleci.oidc_org_claims.delete - Remove an environment variable
circleci.context_env_vars.delete - Remove an entry from the org's URL orb allow-list
circleci.url_orb_allow_list.delete - Delete project-level claims
circleci.oidc_project_claims.delete - Delete context restriction
circleci.context_restrictions.delete - Delete pipeline definition
circleci.pipeline_definitions.delete
A destructive action runs only with confirm: true. Under the human policy the agent cannot confirm for itself: the run stops until a named person approves, in the console or from a signed link in an email. The cap on a key is refused before the call is sent, never after.
Delete a group?
intent: the user asked me to delete a group
account { op: "keys.create", name: "circleci-agent", allowed_actions: ["circleci.*"], cap_calls: 2000, confirm_policy: "human_for_writes", approval_rules: [ { match: "circleci.groups.delete", approver: "[email protected]" }, { match: "circleci.webhooks.delete", approver: "[email protected]" }, { match: "circleci.project_pipelines.run", approver: "[email protected]" } ]}Cost
What CircleCI costs on actionlake.
Every CircleCI action is one upstream call, the only thing actionlake bills. Searching, check, cost, account and any call CircleCI refused with 401, 403, 429 or a 5xx are free. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000.
- 1upstream call per actionall 114 CircleCI actions
- 114actions pageeach page of a long list is one call
- 62reads can be cacheda cache hit costs nothing
- 100,000calls a month, freepaid plans from US$49 a month for 250,000
Action index
Every CircleCI action.
114 actions by area: the id your agent calls, what it does, and its effect.
Insights10
circleci.insights.branches_getGet all branches for a projectreadcircleci.insights.flaky_tests_getGet flaky tests for a projectreadcircleci.insights.job_timeseries_listJob timeseries datareadcircleci.insights.org_summary_getGet summary metrics with trends for the entire org, and for each project.readcircleci.insights.project_summary_getGet summary metrics and trends for a project across it's workflows and branchesreadcircleci.insights.workflow_jobs_listGet summary metrics for a project workflow's jobs.readcircleci.insights.workflow_runs_listGet recent runs of a workflowreadcircleci.insights.workflow_summary_getGet metrics and trends for workflowsreadcircleci.insights.workflow_test_metrics_getGet test metrics for a project's workflowsreadcircleci.insights.workflows_listGet summary metrics for a project's workflowsread
Pipeline definitions5
circleci.pipeline_definitions.createCreate pipeline definitionwritecircleci.pipeline_definitions.deleteDelete pipeline definitiondestructivecircleci.pipeline_definitions.getGet pipeline definitionreadcircleci.pipeline_definitions.listList pipeline definitionsreadcircleci.pipeline_definitions.updateUpdate pipeline definitionwrite
Pipelines5
circleci.pipelines.config_getGet a pipeline's configurationreadcircleci.pipelines.continueContinue a pipelinewritecircleci.pipelines.getGet a pipeline by IDreadcircleci.pipelines.listGet a list of pipelinesreadcircleci.pipelines.values_getGet pipeline values for a pipelineread
Project pipelines5
circleci.project_pipelines.get_by_numberGet a pipeline by pipeline numberreadcircleci.project_pipelines.listGet all pipelinesreadcircleci.project_pipelines.list_mineGet your pipelinesreadcircleci.project_pipelines.run[Recommended] Trigger a new pipelinedestructivecircleci.project_pipelines.triggerTrigger a new pipelinedestructive
Schedules5
circleci.schedules.createCreate a schedulewritecircleci.schedules.deleteDelete a scheduledestructivecircleci.schedules.getGet a schedule by ID. Available only on schedules associated with GitHub OAuth or Bitbucket Cloud pipeline definitions.readcircleci.schedules.listList schedule triggersreadcircleci.schedules.updateUpdate a schedulewrite
Triggers5
circleci.triggers.createCreate triggerwritecircleci.triggers.deleteDelete triggerdestructivecircleci.triggers.getGet triggerreadcircleci.triggers.listList pipeline definition triggersreadcircleci.triggers.updateUpdate triggerwrite
Webhooks5
circleci.webhooks.createCreate an outbound webhookwritecircleci.webhooks.deleteDelete an outbound webhookdestructivecircleci.webhooks.getGet a webhookreadcircleci.webhooks.listList webhooksreadcircleci.webhooks.updateUpdate an outbound webhookwrite
Checkout keys4
circleci.checkout_keys.createCreate a new checkout keywritecircleci.checkout_keys.deleteDelete a checkout keydestructivecircleci.checkout_keys.getGet a checkout keyreadcircleci.checkout_keys.listGet all checkout keysread
Contexts4
circleci.contexts.createCreate a new contextwritecircleci.contexts.deleteDelete a contextdestructivecircleci.contexts.getGet a contextreadcircleci.contexts.listList contextsread
Groups4
circleci.groups.createCreate Groupswritecircleci.groups.deleteDelete a groupdestructivecircleci.groups.getA group in an organizationreadcircleci.groups.listGroups in an organizationread
Policy decisions4
circleci.policy_decisions.createMakes a decisionwritecircleci.policy_decisions.getRetrieves the owner's decision audit log by given decisionIDreadcircleci.policy_decisions.listRetrieves the owner's decision audit logs.readcircleci.policy_decisions.policy_bundle_getRetrieves Policy Bundle for a given decision log IDread
Project env vars4
circleci.project_env_vars.createCreate an environment variablewritecircleci.project_env_vars.deleteDelete an environment variabledestructivecircleci.project_env_vars.getGet a masked environment variablereadcircleci.project_env_vars.listList all environment variablesread
Projects4
circleci.projects.createCreate a new projectwritecircleci.projects.deleteDelete a projectdestructivecircleci.projects.getGet a projectreadcircleci.projects.rollbackRollback a projectwrite
Workflows4
circleci.workflows.approveApprove a jobwritecircleci.workflows.cancelCancel a workflowdestructivecircleci.workflows.getGet a workflowreadcircleci.workflows.rerunRerun a workflowwrite
Context env vars3
circleci.context_env_vars.deleteRemove an environment variabledestructivecircleci.context_env_vars.listList environment variablesreadcircleci.context_env_vars.upsertAdd or update an environment variablewrite
Context restrictions3
circleci.context_restrictions.createCreate context restrictionwritecircleci.context_restrictions.deleteDelete context restrictiondestructivecircleci.context_restrictions.listGet context restrictionsread
Oidc org claims3
circleci.oidc_org_claims.deleteDelete org-level claimsdestructivecircleci.oidc_org_claims.getGet org-level claimsreadcircleci.oidc_org_claims.updatePatch org-level claimswrite
Oidc project claims3
circleci.oidc_project_claims.deleteDelete project-level claimsdestructivecircleci.oidc_project_claims.getGet project-level claimsreadcircleci.oidc_project_claims.updatePatch project-level claimswrite
Organizations3
circleci.organizations.createCreate a new organizationwritecircleci.organizations.deleteDelete an organizationdestructivecircleci.organizations.getGet an organizationread
Otel exporters3
circleci.otel_exporters.create🧪 Create an OTLP exporterwritecircleci.otel_exporters.delete🧪 Delete an OTLP exporterdestructivecircleci.otel_exporters.list🧪 List OTLP exportersread
Policy bundles3
circleci.policy_bundles.getRetrieves Policy Bundlereadcircleci.policy_bundles.policy_getRetrieves a policy documentreadcircleci.policy_bundles.upsertCreates policy bundle for the contextwrite
URL orb allow list3
circleci.url_orb_allow_list.createCreate a new URL Orb allow-list entrywritecircleci.url_orb_allow_list.deleteRemove an entry from the org's URL orb allow-listdestructivecircleci.url_orb_allow_list.listList the entries in the org's URL Orb allow-listread
Deploy components2
circleci.deploy_components.getGet Componentreadcircleci.deploy_components.listList Componentsread
Deploy environments2
circleci.deploy_environments.getGet Environmentreadcircleci.deploy_environments.listList Environmentsread
Jobs2
circleci.jobs.cancelCancel job by job IDdestructivecircleci.jobs.getGet a jobread
Me2
circleci.me.collaborations_listCollaborationsreadcircleci.me.getUser Informationread
Policy decision settings2
circleci.policy_decision_settings.getGet the decision settingsreadcircleci.policy_decision_settings.updateSet the decision settingswrite
Project jobs2
circleci.project_jobs.cancelCancel job by job numberdestructivecircleci.project_jobs.getGet job detailsread
Project settings2
circleci.project_settings.getGet project settingsreadcircleci.project_settings.updateUpdate project settingswrite
Usage exports2
circleci.usage_exports.createCreate a usage exportwritecircleci.usage_exports.getGet a usage exportread
Deploy component versions1
circleci.deploy_component_versions.listList Component Versionsread
Job artifacts1
circleci.job_artifacts.listGet a job's artifactsread
Job tests1
circleci.job_tests.listGet a job's test metadataread
Pipeline workflows1
circleci.pipeline_workflows.listGet a pipeline's workflowsread
Users1
circleci.users.getUser Informationread
Workflow jobs1
circleci.workflow_jobs.listGet a workflow's jobsread
Questions
The CircleCI MCP server, answered.
Is there a CircleCI MCP server for Claude?
Yes. actionlake is an MCP gateway: a remote MCP server that gives Claude, or another MCP client, 114 CircleCI actions across insights, pipeline definitions, pipelines and project pipelines, through the same eight tools it uses for every other connector. actionlake is independent; it is not made or endorsed by CircleCI.
What do I need to connect CircleCI?
CircleCI personal API token. The free call account { op: "connections.requirements", service: "circleci" } lists exactly what to paste.
Can an AI agent delete or change things in CircleCI?
Only if its key allows it, and only with an explicit confirmation. 21 CircleCI actions are destructive, including delete a group, delete an outbound webhook and [Recommended] Trigger a new pipeline. Each runs only with confirm: true. Under the human confirm policy, or an approval rule on the key, the run waits until a named person approves it.
Will an AI agent use up my CircleCI API limit?
actionlake paces every call to the limits in the CircleCI service file: 10 calls a second per connection. Repeated reads are answered from cache (62 CircleCI actions can be), which never reaches CircleCI.
What does a CircleCI action cost?
One upstream call, the only unit actionlake bills. A list that pages bills one call per page (114 CircleCI actions page). Cache hits, searches, dry runs and calls CircleCI refused with 401, 403, 429 or a 5xx are free. The Free plan includes 100,000 calls a month with no card. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000.
Which CircleCI API does it cover?
The CircleCI API v2 (OpenAPI 3.0.3, info.version v2) at circleci.com/api/v2. It is built from CircleCI's documentation as read on 22 October 2026. 114 actions in 36 areas, each one in the signed service file (version 1.0.0).
Does actionlake keep my CircleCI data, and where?
actionlake processes and stores data in Sydney, Australia; there is no US region yet. Reads may be cached for up to 5 minutes, and a write clears the reads it affects. Each run's request and response is kept, sealed, for your plan's trace window: 1 day on Free, 3 days on Starter, 7 days on Pro, 14 days on Team, 30 days on Business and 30 days on Enterprise. Your CircleCI credential is sealed under your tenant's key, never logged and never returned. Your traffic is not used to train models.
Which AI clients can use it?
Claude Code, tested by us end to end, and the Claude app as a custom connector, tested by us with an existing key. Other MCP clients that support remote servers over Streamable HTTP (MCP revisions 2025-06-18 and 2025-11-25) and OAuth dynamic client registration, or a bearer header, should connect the same way; we have not tested them. Or plain REST, under the same action names.
Give your agent CircleCI today.
Start free - 100,000 calls/month, no card. No signup. Hard caps on every key. Cached answers are free.