> ## Documentation Index
> Fetch the complete documentation index at: https://docs.truthlocks.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Update Agent

> Update an agent's display name, description, metadata, or status

# Update Agent

`PATCH /v1/agents/{agentID}`

Updates mutable fields on an existing machine agent identity. Only the fields provided in the request body are modified; all other fields remain unchanged. At least one field must be provided.

<Warning>
  To change an agent's scopes, use the delegation system or re-register the
  agent. Scopes cannot be modified directly through this endpoint to preserve
  the audit trail of scope changes.
</Warning>

### Authentication

Requires `X-API-Key` header or Bearer JWT token. Tenant-scoped via `X-Tenant-ID`.

### Path Parameters

<ParamField path="agentID" type="string" required>
  The MAIP agent identifier (e.g., `maip:t1234567:01HYX3KPZQ7RJGBN0WFMV8SDEH`).
</ParamField>

### Request Body

All fields are optional, but at least one must be provided.

<ParamField body="display_name" type="string">
  Updated human-readable name. Maximum 256 characters.
</ParamField>

<ParamField body="description" type="string">
  Updated description. Maximum 2048 characters.
</ParamField>

<ParamField body="metadata" type="object">
  Replacement metadata object. Replaces the entire metadata field (not a merge).
  Maximum 16 KB serialized.
</ParamField>

<ParamField body="status" type="string">
  Update the agent's lifecycle status. One of: `"active"`, `"suspended"`. Use
  the dedicated [suspend](/api-reference/machine-identity/agents/suspend) or
  [revoke](/api-reference/machine-identity/agents/revoke) endpoints for status
  changes that require a reason for audit compliance.
</ParamField>

### Response

Returns the full updated agent identity object.

<ResponseField name="id" type="string">
  Internal UUID primary key.
</ResponseField>

<ResponseField name="agent_id" type="string">
  MAIP-compliant agent identifier.
</ResponseField>

<ResponseField name="display_name" type="string">
  The updated display name.
</ResponseField>

<ResponseField name="description" type="string">
  The updated description.
</ResponseField>

<ResponseField name="metadata" type="object">
  The updated metadata object.
</ResponseField>

<ResponseField name="status" type="string">
  Current lifecycle status after update.
</ResponseField>

<ResponseField name="updated_at" type="string">
  ISO 8601 timestamp reflecting the update.
</ResponseField>

### Example

```bash theme={null}
curl -X PATCH https://api.truthlocks.com/v1/agents/maip:t1234567:01HYX3KPZQ7RJGBN0WFMV8SDEH \
  -H "X-API-Key: tl_live_..." \
  -H "Content-Type: application/json" \
  -d '{
    "display_name": "Customer Support Bot v2",
    "description": "Upgraded to handle Tier-1 and Tier-2 support with escalation",
    "metadata": {
      "team": "support",
      "model": "claude-opus-4",
      "environment": "production",
      "version": "2.0"
    }
  }'
```


## OpenAPI

````yaml mint-openapi.yaml PATCH /v1/agents/{agentId}
openapi: 3.0.3
info:
  title: Truthlocks API
  description: >
    Truthlocks is a universal verification infrastructure for documents,
    credentials, and digital assets.

    This specification defines the canonical API for interacting with Truthlocks
    services.


    ## Base URLs

    - **Production**: `https://api.truthlocks.com`

    - **Sandbox**: `https://sandbox-api.truthlocks.com`


    ## Authentication

    - **API Keys**: Use `X-API-Key` header for machine-to-machine operations

    - **Bearer Tokens**: Use `Authorization: Bearer <jwt>` for user-initiated
    operations


    ## Tenant Identity

    In production, tenant identity is derived from the authenticated context
    (API key or JWT).

    The `X-Tenant-ID` header is ignored in production to prevent spoofing.
  version: 1.0.0
  contact:
    name: Truthlocks Support
    url: https://truthlocks.com/support
    email: support@truthlocks.com
servers:
  - url: https://api.truthlocks.com
    description: Production API
  - url: https://sandbox-api.truthlocks.com
    description: Sandbox Environment
security:
  - APIKey: []
tags:
  - name: Authentication
    description: API key and token management
  - name: Issuers
    description: Issuer registration and trust management
  - name: Keys
    description: Cryptographic key management for issuers
  - name: Attestations
    description: Attestation lifecycle (mint, revoke, supersede)
  - name: Verification
    description: Attestation verification and proof bundles
  - name: Governance
    description: Issuer governance workflows (admin only)
  - name: Identity
    description: Organization, user, and role management
  - name: Audit
    description: Audit event queries
  - name: Platform
    description: Platform administration (super admin only)
  - name: Platform Review
    description: Staff review workflows for issuer applications
  - name: Tenant Console
    description: Tenant profile and lifecycle endpoints
  - name: Health
    description: Service health and readiness endpoints
  - name: Risk
    description: Risk signal ingestion and fraud detection
  - name: Risk Enforcement
    description: Risk enforcement actions — block, challenge, quarantine, and configuration
  - name: Billing
    description: Billing, subscription, and addon management
  - name: Machine Identity
    description: >-
      Machine Agent Identity Protocol (MAIP) — agent registration, sessions,
      trust, witness, compliance, orchestration, and observability
externalDocs:
  description: Transparency read-only API (separate service spec)
  url: >-
    https://github.com/truthlocks/truthlock/blob/main/docs/transparency/openapi.yaml
paths:
  /v1/agents/{agentId}:
    patch:
      tags:
        - Machine Identity
      summary: Update Agent
      description: Update mutable fields on an existing agent identity.
      operationId: maip.agents.update
      parameters:
        - name: agentId
          in: path
          required: true
          schema:
            type: string
            format: uuid
          description: Agent identifier
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                display_name:
                  type: string
                  maxLength: 256
                description:
                  type: string
                scopes:
                  type: array
                  items:
                    type: string
                metadata:
                  type: object
                  additionalProperties: true
      responses:
        '200':
          description: Agent updated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MaipAgent'
        '400':
          description: Validation error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '401':
          description: Authentication required
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '404':
          description: Agent not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '429':
          description: Rate limit exceeded
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
      security:
        - APIKey: []
components:
  schemas:
    MaipAgent:
      type: object
      properties:
        id:
          type: string
          format: uuid
        agent_type:
          type: string
          enum:
            - orchestrator
            - worker
            - inference
            - pipeline
            - service
            - bot
            - llm
        display_name:
          type: string
          maxLength: 256
        description:
          type: string
        status:
          type: string
          enum:
            - active
            - suspended
            - revoked
        scopes:
          type: array
          items:
            type: string
        metadata:
          type: object
          additionalProperties: true
        trust_score:
          type: number
          format: float
          minimum: 0
          maximum: 1
        public_key:
          type: string
          description: Base64-encoded public key
        session_count:
          type: integer
        keys:
          type: array
          items:
            type: object
            properties:
              kid:
                type: string
              algorithm:
                type: string
              public_key:
                type: string
              status:
                type: string
                enum:
                  - active
                  - disabled
                  - expired
        created_at:
          type: string
          format: date-time
        updated_at:
          type: string
          format: date-time
    ErrorEnvelope:
      type: object
      required:
        - code
        - message
        - http_status
      properties:
        code:
          type: string
          description: Machine-readable error code
          enum:
            - AUTH_REQUIRED
            - AUTH_INVALID
            - PERMISSION_DENIED
            - TENANT_IDENTITY_UNVERIFIED
            - NOT_FOUND
            - VALIDATION_ERROR
            - CONFLICT
            - PAYLOAD_TOO_LARGE
            - RATE_LIMIT_EXCEEDED
            - QUOTA_EXCEEDED
            - SERVICE_UNAVAILABLE
            - INTERNAL_ERROR
        message:
          type: string
          description: Human-readable error message
        http_status:
          type: integer
          description: HTTP status code
        retry_after_ms:
          type: integer
          description: Milliseconds to wait before retrying (for rate limits)
        details:
          type: object
          description: Additional error context
      example:
        code: AUTH_REQUIRED
        message: Authentication required
        http_status: 401
  securitySchemes:
    APIKey:
      type: apiKey
      in: header
      name: X-API-Key
      description: API key for machine-to-machine authentication

````