--- title: Update a Credential url: https://platform.claude.com/docs/en/api/csharp/beta/vaults/credentials/update --- # Update a Credential `BetaManagedAgentsCredential Beta.Vaults.Credentials.Update(parameters, cancellationToken = default)` **POST** `/v1/vaults/{vault_id}/credentials/{credential_id}` Update a Credential ## Parameters - `CredentialUpdateParams parameters` - `required string vaultID` (path parameter) Identifier of the vault containing the credential. - `required string credentialID` (path parameter) Unique identifier of the credential to update. - `Auth auth` New authentication settings for the credential. The `type` must match the credential's current type, which can't be changed. - `class BetaManagedAgentsMcpOAuthUpdateParams` Parameters for updating an MCP OAuth credential. The `mcp_server_url` is immutable. - `JsonElement Type = "mcp_oauth"` - `string? AccessToken` The new OAuth access token to replace the stored one. minLength: 1, maxLength: 8192, pattern: ^[^\x00-\x1f\x7f]*$ - `DateTimeOffset? ExpiresAt` When the credential's access token expires, in RFC 3339. Leave it out to keep the stored expiry. If you send a new `access_token`, send its `expires_at` too, or the new token keeps the old expiry. Must be in the future. format: date-time - `BetaManagedAgentsMcpOAuthRefreshUpdateParams? Refresh` Updated refresh token configuration. - `string? RefreshToken` The new OAuth refresh token to replace the stored one. minLength: 1, maxLength: 8192 - `string? Scope` The new OAuth scope for refresh requests. Send an empty string to clear the stored scope. maxLength: 8192 - `TokenEndpointAuth TokenEndpointAuth` - `class BetaManagedAgentsTokenEndpointAuthBasicUpdateParam` Updated HTTP Basic authentication parameters for the token endpoint. - `JsonElement Type = "client_secret_basic"` - `string? ClientSecret` A new OAuth client secret to replace the stored one. The credential must already use `client_secret_basic` or `client_secret_post`. It keeps its current `token_endpoint_auth` type, even if the `type` sent with this secret is the other one. minLength: 1, maxLength: 512 - `class BetaManagedAgentsTokenEndpointAuthPostUpdateParam` Updated POST body authentication parameters for the token endpoint. - `JsonElement Type = "client_secret_post"` - `string? ClientSecret` A new OAuth client secret to replace the stored one. The credential must already use `client_secret_basic` or `client_secret_post`. It keeps its current `token_endpoint_auth` type, even if the `type` sent with this secret is the other one. minLength: 1, maxLength: 512 - `class BetaManagedAgentsStaticBearerUpdateParams` Parameters for updating a static bearer token credential. The `mcp_server_url` is immutable. - `JsonElement Type = "static_bearer"` - `string? Token` The new static bearer token to replace the stored one. minLength: 1, maxLength: 8192, pattern: ^[^\x00-\x1f\x7f]*$ - `class BetaManagedAgentsEnvironmentVariableUpdateParams` Parameters for updating an environment variable credential. `secret_name` is immutable. - `JsonElement Type = "environment_variable"` - `BetaManagedAgentsInjectionLocationUpdateParams InjectionLocation` Updated injection location. - `bool Body` Substitute when the placeholder appears in the request body. - `bool Header` Substitute when the placeholder appears in a request header value. - `BetaManagedAgentsCredentialNetworkingParams? Networking` The new networking scope, which replaces the stored one as a whole. - `class BetaManagedAgentsUnrestrictedCredentialNetworkingParams` Substitute the secret on any host the session's Environment network policy permits egress to. The Environment's network policy is the only boundary on where the secret can reach. - `JsonElement Type = "unrestricted"` - `class BetaManagedAgentsLimitedCredentialNetworkingParams` Substitute the secret only on requests to the listed hosts. - `JsonElement Type = "limited"` - `required IReadOnlyList AllowedHosts` The destination hosts of the outbound requests that the credential's secret is substituted into. Each entry is a bare hostname (`api.example.com`), an IPv4 address (`192.0.2.1`), or a `*.` wildcard (`*.example.com`). URLs, ports, paths, and IPv6 addresses aren't accepted. The list can have up to 16 entries. - `string? SecretValue` The new secret value to replace the stored one. minLength: 1, maxLength: 4096, pattern: ^[^\x00-\x1f\x7f]*$ - `string? displayName` Updated human-readable name for the credential. 1-255 characters. minLength: 1, maxLength: 255 - `IReadOnlyDictionary? metadata` Metadata patch. Set a key to a string to upsert it, or to null to delete it. Omitted keys are preserved. - `IReadOnlyList betas` (header parameter) This endpoint is in beta: requests must send `managed-agents-2026-04-01` in this header. - `MessageBatches2024_09_24("message-batches-2024-09-24")` - `PromptCaching2024_07_31("prompt-caching-2024-07-31")` - `ComputerUse2024_10_22("computer-use-2024-10-22")` - `ComputerUse2025_01_24("computer-use-2025-01-24")` - `Pdfs2024_09_25("pdfs-2024-09-25")` - `TokenCounting2024_11_01("token-counting-2024-11-01")` - `TokenEfficientTools2025_02_19("token-efficient-tools-2025-02-19")` - `Output128k2025_02_19("output-128k-2025-02-19")` - `FilesApi2025_04_14("files-api-2025-04-14")` - `McpClient2025_04_04("mcp-client-2025-04-04")` - `McpClient2025_11_20("mcp-client-2025-11-20")` - `DevFullThinking2025_05_14("dev-full-thinking-2025-05-14")` - `InterleavedThinking2025_05_14("interleaved-thinking-2025-05-14")` - `CodeExecution2025_05_22("code-execution-2025-05-22")` - `ExtendedCacheTtl2025_04_11("extended-cache-ttl-2025-04-11")` - `Context1m2025_08_07("context-1m-2025-08-07")` - `ContextManagement2025_06_27("context-management-2025-06-27")` - `ModelContextWindowExceeded2025_08_26("model-context-window-exceeded-2025-08-26")` - `Skills2025_10_02("skills-2025-10-02")` - `FastMode2026_02_01("fast-mode-2026-02-01")` - `Output300k2026_03_24("output-300k-2026-03-24")` - `UserProfiles2026_03_24("user-profiles-2026-03-24")` - `UserProfiles2026_08_18("user-profiles-2026-08-18")` - `UserProfiles2026_09_04("user-profiles-2026-09-04")` - `AdvisorTool2026_03_01("advisor-tool-2026-03-01")` - `ManagedAgents2026_04_01("managed-agents-2026-04-01")` - `CacheDiagnosis2026_04_07("cache-diagnosis-2026-04-07")` - `Dreaming2026_04_21("dreaming-2026-04-21")` - `ThinkingTokenCount2026_05_13("thinking-token-count-2026-05-13")` - `ServerSideFallback2026_06_01("server-side-fallback-2026-06-01")` - `ServerSideFallback2026_07_01("server-side-fallback-2026-07-01")` - `FallbackCredit2026_06_01("fallback-credit-2026-06-01")` - `FallbackCredit2026_07_01("fallback-credit-2026-07-01")` - `AgentMemory2026_07_22("agent-memory-2026-07-22")` - `MidConversationToolChanges2026_07_01("mid-conversation-tool-changes-2026-07-01")` - `Compact2026_01_12("compact-2026-01-12")` - `ComputerUse2025_11_24("computer-use-2025-11-24")` - `McpTunnels2026_06_22("mcp-tunnels-2026-06-22")` - `StructuredOutputs2025_11_13("structured-outputs-2025-11-13")` - `TaskBudgets2026_03_13("task-budgets-2026-03-13")` - `ThinkingDisplayUpdates2026_08_18("thinking-display-updates-2026-08-18")` - `CEUserManagement2026_07_13("ce-user-management-2026-07-13")` - `MidConversationOutputConfig2026_07_01("mid-conversation-output-config-2026-07-01")` - `ThinkingBindingControls2026_08_01("thinking-binding-controls-2026-08-01")` - `MidConversationSystemClearAt2026_08_21("mid-conversation-system-clear-at-2026-08-21")` - `Compact2026_09_04("compact-2026-09-04")` - `InlineTools2026_09_15("inline-tools-2026-09-15")` - `McpClient2026_09_15("mcp-client-2026-09-15")` - `CEPlugins2026_09_01("ce-plugins-2026-09-01")` - `SpendLimitReads2026_09_26("spend-limit-reads-2026-09-26")` - `TelemetryDestinations2026_08_11("telemetry-destinations-2026-08-11")` - `Webhooks2026_10_07("webhooks-2026-10-07")` - `MessageThreads2026_08_12("message-threads-2026-08-12")` - `AnalyticsUsageCost2026_08_24("analytics-usage-cost-2026-08-24")` - `ExperimentalClaudeTag2026_10_21("experimental-claude-tag-2026-10-21")` - `string workspaceID` (header parameter) Optional header to select the Workspace for this request. The value is a Workspace ID (for example, `wrkspc_011CZkZaBF1tNoB5wlCeusgy`). Only needed for credentials that can act on more than one Workspace. A credential that belongs to a specific Workspace may omit it; if sent, it must match that Workspace. ## Returns - `class BetaManagedAgentsCredential` A credential stored in a vault. Sensitive fields are never returned in responses. - `JsonElement Type = "vault_credential"` - `required string ID` The unique ID of the credential (`vcrd_...`). - `required DateTimeOffset? ArchivedAt` When the credential was archived. Null if not archived. format: date-time - `required Auth Auth` Authentication configuration for this credential. - `class BetaManagedAgentsMcpOAuthAuthResponse` OAuth credential details for an MCP server. - `JsonElement Type = "mcp_oauth"` - `required string McpServerUrl` URL of the MCP server this credential authenticates against. - `DateTimeOffset? ExpiresAt` When the credential's access token expires, in RFC 3339. Absent if the expiry isn't known. format: date-time - `BetaManagedAgentsMcpOAuthRefreshResponse? Refresh` Refresh token configuration, if the credential supports token refresh. - `required string ClientID` The OAuth client ID used when refreshing the access token. - `required string TokenEndpoint` Token endpoint URL used to refresh the access token. - `required TokenEndpointAuth TokenEndpointAuth` - `class BetaManagedAgentsTokenEndpointAuthNoneResponse` Token endpoint requires no client authentication. - `JsonElement Type = "none"` - `class BetaManagedAgentsTokenEndpointAuthBasicResponse` Token endpoint uses HTTP Basic authentication with client credentials. - `JsonElement Type = "client_secret_basic"` - `class BetaManagedAgentsTokenEndpointAuthPostResponse` Token endpoint uses POST body authentication with client credentials. - `JsonElement Type = "client_secret_post"` - `string? Resource` OAuth resource indicator. - `string? Scope` OAuth scope for the refresh request. - `class BetaManagedAgentsStaticBearerAuthResponse` Static bearer token credential details for an MCP server. - `JsonElement Type = "static_bearer"` - `required string McpServerUrl` URL of the MCP server this credential authenticates against. - `class BetaManagedAgentsEnvironmentVariableAuthResponse` Environment variable credential details. The secret value is never returned. - `JsonElement Type = "environment_variable"` - `required BetaManagedAgentsInjectionLocationResponse InjectionLocation` Where in the outbound request the secret value is substituted. - `required bool Body` Whether the placeholder is substituted in the request body. - `required bool Header` Whether the placeholder is substituted in request header values. - `required Networking Networking` Outbound hosts the secret value is substituted on. - `class BetaManagedAgentsUnrestrictedCredentialNetworkingResponse` The secret is substituted on any host the session's Environment network policy permits egress to. - `JsonElement Type = "unrestricted"` - `class BetaManagedAgentsLimitedCredentialNetworkingResponse` The secret is substituted only on requests to the listed hosts. - `JsonElement Type = "limited"` - `required IReadOnlyList AllowedHosts` The destination hosts of the outbound requests that the credential's secret is substituted into. An entry matches the request host exactly. An entry such as `*.example.com` matches any subdomain of `example.com` but not `example.com` itself. - `required string SecretName` Name of the environment variable. - `required DateTimeOffset CreatedAt` A timestamp in RFC 3339 format format: date-time - `required IReadOnlyDictionary Metadata` Arbitrary key-value metadata attached to the credential. - `required DateTimeOffset UpdatedAt` A timestamp in RFC 3339 format format: date-time - `required string VaultID` Identifier of the vault this credential belongs to. - `string? DisplayName` Human-readable name for the credential. ## Example ```csharp using System; using Anthropic.Models.Beta.Vaults.Credentials; CredentialUpdateParams parameters = new() { VaultID = "vlt_011CZkZDLs7fYzm1hXNPeRjv", CredentialID = "vcrd_011CZkZEMt8gZan2iYPQfSkw", }; var betaManagedAgentsCredential = await client.Beta.Vaults.Credentials.Update(parameters); Console.WriteLine(betaManagedAgentsCredential); ``` ### Response (200) ```json { "id": "vcrd_011CZkZEMt8gZan2iYPQfSkw", "archived_at": null, "auth": { "mcp_server_url": "https://example-server.modelcontextprotocol.io/sse", "type": "static_bearer" }, "created_at": "2026-03-15T10:00:00Z", "metadata": { "environment": "production" }, "type": "vault_credential", "updated_at": "2026-03-15T10:00:00Z", "vault_id": "vlt_011CZkZDLs7fYzm1hXNPeRjv", "display_name": "Example credential" } ```