## Create Credential

`BetaManagedAgentsCredential Beta.Vaults.Credentials.Create(CredentialCreateParamsparameters, CancellationTokencancellationToken = default)`

**post** `/v1/vaults/{vault_id}/credentials`

Create Credential

### Parameters

- `CredentialCreateParams parameters`

  - `required string vaultID`

    Path param: Path parameter vault_id

  - `required Auth auth`

    Body param: Authentication details for creating a credential.

    - `class BetaManagedAgentsMcpOAuthCreateParams:`

      Parameters for creating an MCP OAuth credential.

      - `required string AccessToken`

        OAuth access token.

      - `required string McpServerUrl`

        URL of the MCP server this credential authenticates against.

      - `required Type Type`

        - `"mcp_oauth"McpOAuth`

      - `DateTimeOffset? ExpiresAt`

        A timestamp in RFC 3339 format

      - `BetaManagedAgentsMcpOAuthRefreshParams? Refresh`

        OAuth refresh token parameters for creating a credential with refresh support.

        - `required string ClientID`

          OAuth client ID.

        - `required string RefreshToken`

          OAuth refresh token.

        - `required string TokenEndpoint`

          Token endpoint URL used to refresh the access token.

        - `required TokenEndpointAuth TokenEndpointAuth`

          Token endpoint requires no client authentication.

          - `class BetaManagedAgentsTokenEndpointAuthNoneParam:`

            Token endpoint requires no client authentication.

            - `required Type Type`

              - `"none"None`

          - `class BetaManagedAgentsTokenEndpointAuthBasicParam:`

            Token endpoint uses HTTP Basic authentication with client credentials.

            - `required string ClientSecret`

              OAuth client secret.

            - `required Type Type`

              - `"client_secret_basic"ClientSecretBasic`

          - `class BetaManagedAgentsTokenEndpointAuthPostParam:`

            Token endpoint uses POST body authentication with client credentials.

            - `required string ClientSecret`

              OAuth client secret.

            - `required Type Type`

              - `"client_secret_post"ClientSecretPost`

        - `string? Resource`

          OAuth resource indicator.

        - `string? Scope`

          OAuth scope for the refresh request.

    - `class BetaManagedAgentsStaticBearerCreateParams:`

      Parameters for creating a static bearer token credential.

      - `required string Token`

        Static bearer token value.

      - `required string McpServerUrl`

        URL of the MCP server this credential authenticates against.

      - `required Type Type`

        - `"static_bearer"StaticBearer`

    - `class BetaManagedAgentsEnvironmentVariableCreateParams:`

      Parameters for creating an environment variable credential.

      - `required BetaManagedAgentsCredentialNetworkingParams Networking`

        Outbound hosts the secret value is substituted on.

        - `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.

          - `required Type Type`

            - `"unrestricted"Unrestricted`

        - `class BetaManagedAgentsLimitedCredentialNetworkingParams:`

          Substitute the secret only on requests to the listed hosts.

          - `required IReadOnlyList<string> AllowedHosts`

            Hostnames on which the secret will be substituted. Each entry is a bare hostname (`api.example.com`), an IPv4 address (`192.0.2.1`), or a `*.`-prefixed wildcard (`*.example.com`). URLs, ports, paths, and IPv6 addresses are not accepted. At most 16 entries.

          - `required Type Type`

            - `"limited"Limited`

      - `required string SecretName`

        Name of the environment variable. Immutable after create.

      - `required string SecretValue`

        Secret value. Write-only; never returned in responses.

      - `required Type Type`

        - `"environment_variable"EnvironmentVariable`

  - `string? displayName`

    Body param: Human-readable name for the credential. Up to 255 characters.

  - `IReadOnlyDictionary<string, string> metadata`

    Body param: Arbitrary key-value metadata to attach to the credential. Maximum 16 pairs, keys up to 64 chars, values up to 512 chars.

  - `IReadOnlyList<AnthropicBeta> betas`

    Header param: Optional header to specify the beta version(s) you want to use.

    - `"message-batches-2024-09-24"MessageBatches2024_09_24`

    - `"prompt-caching-2024-07-31"PromptCaching2024_07_31`

    - `"computer-use-2024-10-22"ComputerUse2024_10_22`

    - `"computer-use-2025-01-24"ComputerUse2025_01_24`

    - `"pdfs-2024-09-25"Pdfs2024_09_25`

    - `"token-counting-2024-11-01"TokenCounting2024_11_01`

    - `"token-efficient-tools-2025-02-19"TokenEfficientTools2025_02_19`

    - `"output-128k-2025-02-19"Output128k2025_02_19`

    - `"files-api-2025-04-14"FilesApi2025_04_14`

    - `"mcp-client-2025-04-04"McpClient2025_04_04`

    - `"mcp-client-2025-11-20"McpClient2025_11_20`

    - `"dev-full-thinking-2025-05-14"DevFullThinking2025_05_14`

    - `"interleaved-thinking-2025-05-14"InterleavedThinking2025_05_14`

    - `"code-execution-2025-05-22"CodeExecution2025_05_22`

    - `"extended-cache-ttl-2025-04-11"ExtendedCacheTtl2025_04_11`

    - `"context-1m-2025-08-07"Context1m2025_08_07`

    - `"context-management-2025-06-27"ContextManagement2025_06_27`

    - `"model-context-window-exceeded-2025-08-26"ModelContextWindowExceeded2025_08_26`

    - `"skills-2025-10-02"Skills2025_10_02`

    - `"fast-mode-2026-02-01"FastMode2026_02_01`

    - `"output-300k-2026-03-24"Output300k2026_03_24`

    - `"user-profiles-2026-03-24"UserProfiles2026_03_24`

    - `"advisor-tool-2026-03-01"AdvisorTool2026_03_01`

    - `"managed-agents-2026-04-01"ManagedAgents2026_04_01`

    - `"cache-diagnosis-2026-04-07"CacheDiagnosis2026_04_07`

    - `"thinking-token-count-2026-05-13"ThinkingTokenCount2026_05_13`

    - `"server-side-fallback-2026-06-01"ServerSideFallback2026_06_01`

    - `"fallback-credit-2026-06-01"FallbackCredit2026_06_01`

### Returns

- `class BetaManagedAgentsCredential:`

  A credential stored in a vault. Sensitive fields are never returned in responses.

  - `required string ID`

    Unique identifier for the credential.

  - `required DateTimeOffset? ArchivedAt`

    A timestamp in RFC 3339 format

  - `required Auth Auth`

    Authentication details for a credential.

    - `class BetaManagedAgentsMcpOAuthAuthResponse:`

      OAuth credential details for an MCP server.

      - `required string McpServerUrl`

        URL of the MCP server this credential authenticates against.

      - `required Type Type`

        - `"mcp_oauth"McpOAuth`

      - `DateTimeOffset? ExpiresAt`

        A timestamp in RFC 3339 format

      - `BetaManagedAgentsMcpOAuthRefreshResponse? Refresh`

        OAuth refresh token configuration returned in credential responses.

        - `required string ClientID`

          OAuth client ID.

        - `required string TokenEndpoint`

          Token endpoint URL used to refresh the access token.

        - `required TokenEndpointAuth TokenEndpointAuth`

          Token endpoint requires no client authentication.

          - `class BetaManagedAgentsTokenEndpointAuthNoneResponse:`

            Token endpoint requires no client authentication.

            - `required Type Type`

              - `"none"None`

          - `class BetaManagedAgentsTokenEndpointAuthBasicResponse:`

            Token endpoint uses HTTP Basic authentication with client credentials.

            - `required Type Type`

              - `"client_secret_basic"ClientSecretBasic`

          - `class BetaManagedAgentsTokenEndpointAuthPostResponse:`

            Token endpoint uses POST body authentication with client credentials.

            - `required Type Type`

              - `"client_secret_post"ClientSecretPost`

        - `string? Resource`

          OAuth resource indicator.

        - `string? Scope`

          OAuth scope for the refresh request.

    - `class BetaManagedAgentsStaticBearerAuthResponse:`

      Static bearer token credential details for an MCP server.

      - `required string McpServerUrl`

        URL of the MCP server this credential authenticates against.

      - `required Type Type`

        - `"static_bearer"StaticBearer`

    - `class BetaManagedAgentsEnvironmentVariableAuthResponse:`

      Environment variable credential details. The secret value is never returned.

      - `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.

          - `required Type Type`

            - `"unrestricted"Unrestricted`

        - `class BetaManagedAgentsLimitedCredentialNetworkingResponse:`

          The secret is substituted only on requests to the listed hosts.

          - `required IReadOnlyList<string> AllowedHosts`

            Hostnames on which the secret will be substituted. An entry matches the request host exactly; a `*.`-prefixed entry matches any subdomain of the named domain but not the domain itself.

          - `required Type Type`

            - `"limited"Limited`

      - `required string SecretName`

        Name of the environment variable.

      - `required Type Type`

        - `"environment_variable"EnvironmentVariable`

  - `required DateTimeOffset CreatedAt`

    A timestamp in RFC 3339 format

  - `required IReadOnlyDictionary<string, string> Metadata`

    Arbitrary key-value metadata attached to the credential.

  - `required Type Type`

    - `"vault_credential"VaultCredential`

  - `required DateTimeOffset UpdatedAt`

    A timestamp in RFC 3339 format

  - `required string VaultID`

    Identifier of the vault this credential belongs to.

  - `string? DisplayName`

    Human-readable name for the credential.

### Example

```csharp
CredentialCreateParams parameters = new()
{
    VaultID = "vlt_011CZkZDLs7fYzm1hXNPeRjv",
    Auth = new BetaManagedAgentsStaticBearerCreateParams()
    {
        Token = "bearer_exampletoken",
        McpServerUrl = "https://example-server.modelcontextprotocol.io/sse",
        Type = Type.StaticBearer,
    },
};

var betaManagedAgentsCredential = await client.Beta.Vaults.Credentials.Create(parameters);

Console.WriteLine(betaManagedAgentsCredential);
```

#### Response

```json
{
  "id": "vcrd_011CZkZEMt8gZan2iYOQfSkw",
  "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"
}
```
