MCP Tools Reference
STACK exposes 60 MCP tools. Connect via Streamable HTTP transport:
bash
claude mcp add stack --transport http https://mcp.getstack.run/mcp --header "Authorization: Bearer sk_live_..."Agents
stack_register_agentRegister a new agent with STACK. Returns agent ID and status.stack_list_agentsList all registered agents for your account.Services & Credentials
stack_connect_serviceConnect an external service (Slack, GitHub, Notion, etc.) via OAuth.stack_list_servicesList all available services that can be connected.stack_grant_agent_accessGrant an agent access to a connected service with specific scopes.stack_revoke_agent_accessRevoke all service access for an agent.stack_get_agent_permissionsGet all service permissions granted to an agent.stack_get_credentialRetrieve a decrypted credential for a connected service at runtime.stack_list_credential_templatesList available credential templates for manual service connections.stack_verify_connectionVerify a service connection is healthy by testing its credentials.Passports
stack_issue_passportIssue a signed JWT passport for an agent session. Default 15 min TTL, max 1 hour.stack_verify_passportVerify a passport token is valid, not expired, and not revoked.stack_refresh_passportRefresh a passport before or after expiry (within 24h). Preserves session and delegation chain.stack_list_active_passportsList all active (non-expired, non-revoked) passports. Filter by agent or session.stack_revoke_passportRevoke a specific passport by JTI. Takes effect within 60 seconds.stack_revoke_agent_passportsRevoke ALL active passports for a specific agent.stack_revoke_sessionRevoke an entire session chain -- root passport and all delegated passports.stack_revoke_all_passportsEMERGENCY: Revoke ALL active passports across all agents. Requires confirm: true.Accountability
stack_checkpointSubmit a progress checkpoint during an active mission. Reports services used and actions taken.stack_checkoutSubmit final report and check out from a mission. Triggers the review engine.stack_get_passport_reportGet full accountability report: intent, checkpoints, checkout, and review decision.stack_list_pending_reviewsList flagged or blocked passport checkouts pending operator review.stack_decide_reviewApprove or block a flagged passport checkout. Can block agent from future passports.Drop-offs
stack_create_dropoffCreate a point-to-point drop-off between two agents with schema validation and TTL.stack_depositDeposit a package into a drop-off. Validates against declared schema, encrypts at rest.stack_collectCollect a package from a drop-off. Decrypts and returns data, then deletes from storage.stack_get_dropoff_statusGet current status of a drop-off (created, deposited, collected, expired, failed).stack_list_dropoffsList all drop-offs for your account, ordered by creation date.stack_expire_dropoffManually expire a drop-off and permanently delete its package.Skills
stack_publish_skillPublish a skill to the marketplace. Supports open, sealed, and source execution modes.stack_browse_skillsBrowse the skills marketplace with filters for trust level, tags, and search.stack_get_skillGet details of a specific skill including input/output schemas.stack_invoke_skillInvoke a skill with input data. For paid skills, provide payment_token. Poll stack_check_invocation for result.stack_check_invocationCheck invocation status. Returns decrypted output when completed.stack_get_skill_balanceCheck credit balance for a paid skill. Returns balance, price, and purchase URL.stack_checkout_skillGet a checkout URL to purchase access to a paid skill.stack_list_pending_invocationsList pending invocations for skills you provide. Poll this for work.stack_complete_invocationComplete a skill invocation by submitting schema-validated, encrypted output.stack_check_trust_levelCheck if your trust level meets a skill's requirements. Returns upgrade guidance.stack_list_favorite_skillsList your saved/favorite skills for quick access.Team
stack_invite_memberInvite a team member by email with a role and optional connection restrictions.stack_list_membersList all team members and their statuses.stack_revoke_memberRevoke a team member, disabling their API key.stack_update_memberUpdate a member's role or allowed connections.Identity Settings
stack_get_identity_settingsGet identity security settings: claim TTL, inheritance mode, auto-revoke.stack_update_identity_settingsUpdate identity settings -- claim TTL capping, inheritance mode, auto-revoke on expiry.Proxy
stack_proxy_requestSend a request through STACK's credential proxy. Agent never sees the secret. Studio/Enterprise only.stack_proxy_usageCheck monthly proxy usage and remaining quota.Security Events
stack_list_security_eventsList unresolved security events (credential misuse, delegation violations, etc.).stack_resolve_security_eventMark a security event as reviewed and resolved.Notifications
stack_add_delivery_methodAdd a notification delivery method (email, SMS, or webhook).stack_list_delivery_methodsList all configured notification delivery methods.stack_delete_delivery_methodDelete a delivery method. Cascades to associated rules.stack_send_verification_codeSend a verification code to a pending delivery method.stack_verify_delivery_methodVerify a delivery method with a 6-digit code.stack_test_delivery_methodSend a test notification to a verified delivery method.stack_create_notification_ruleCreate a rule targeting delivery methods for specific event types and severities.stack_list_notification_rulesList all notification rules with their associated delivery methods.stack_update_notification_ruleUpdate a notification rule -- change delivery methods, events, or severity.stack_delete_notification_ruleDelete a notification rule.