Mycarrierpackets API

MyCarrierPackets API Integration Guide

Overview

MyCarrierPackets (MCP) provides a comprehensive API for Transportation Management System (TMS) integration, enabling carrier onboarding, profile management, risk assessment, monitoring, and document retrieval.

Base URL: https://api.mycarrierpackets.com API Version: v1 Authentication: OAuth2 Bearer Token Default Response Format: JSON (XML available with Accept: text/xml header)

When to Use This Skill

• Setting up OAuth2 authentication with MyCarrierPackets
• Implementing carrier invitation flows (Intellivite)
• Building carrier profile data retrieval
• Integrating Assure Advantage monitoring
• Retrieving certificates of insurance (COI), W9s, or eAgreements
• Polling for completed packets or carrier changes
• Managing carrier monitoring lists
• Implementing fraud detection with associated carriers

Authentication & Configuration

OAuth2 Password Grant Flow

Authenticate using the password grant type to obtain a bearer token.

Token Endpoint: POST https://api.mycarrierpackets.com/token

Request:

POST /token HTTP/1.1
Host: api.mycarrierpackets.com
Content-Type: application/x-www-form-urlencoded

grant_type=password&username={integration_username}&password={integration_password}

Response:

{
  "access_token": "eyJ...",
  "token_type": "bearer",
  "expires_in": 3600
}

Go Implementation

package mcp

import (
    "context"
    "encoding/json"
    "fmt"
    "io"
    "net/http"
    "net/url"
    "strings"
    "sync"
    "time"
)

type MCPClient struct {
    baseURL      string
    httpClient   *http.Client
    username     string
    password     string
    accessToken  string
    tokenExpiry  time.Time
    tokenMu      sync.RWMutex
}

type TokenResponse struct {
    AccessToken string `json:"access_token"`
    TokenType   string `json:"token_type"`
    ExpiresIn   int    `json:"expires_in"`
}

func NewMCPClient(username, password string) *MCPClient {
    return &MCPClient{
        baseURL:    "https://api.mycarrierpackets.com",
        httpClient: &http.Client{Timeout: 30 * time.Second},
        username:   username,
        password:   password,
    }
}

func (c *MCPClient) getToken(ctx context.Context) (string, error) {
    c.tokenMu.RLock()
    if c.accessToken != "" && time.Now().Before(c.tokenExpiry) {
        token := c.accessToken
        c.tokenMu.RUnlock()
        return token, nil
    }
    c.tokenMu.RUnlock()

    c.tokenMu.Lock()
    defer c.tokenMu.Unlock()

    // Double-check after acquiring write lock
    if c.accessToken != "" && time.Now().Before(c.tokenExpiry) {
        return c.accessToken, nil
    }

    data := url.Values{}
    data.Set("grant_type", "password")
    data.Set("username", c.username)
    data.Set("password", c.password)

    req, err := http.NewRequestWithContext(ctx, "POST", c.baseURL+"/token", strings.NewReader(data.Encode()))
    if err != nil {
        return "", fmt.Errorf("creating token request: %w", err)
    }
    req.Header.Set("Content-Type", "application/x-www-form-urlencoded")

    resp, err := c.httpClient.Do(req)
    if err != nil {
        return "", fmt.Errorf("token request failed: %w", err)
    }
    defer resp.Body.Close()

    if resp.StatusCode != http.StatusOK {
        body, _ := io.ReadAll(resp.Body)
        return "", fmt.Errorf("token request returned %d: %s", resp.StatusCode, string(body))
    }

    var tokenResp TokenResponse
    if err := json.NewDecoder(resp.Body).Decode(&tokenResp); err != nil {
        return "", fmt.Errorf("decoding token response: %w", err)
    }

    c.accessToken = tokenResp.AccessToken
    c.tokenExpiry = time.Now().Add(time.Duration(tokenResp.ExpiresIn-60) * time.Second)

    return c.accessToken, nil
}

func (c *MCPClient) doRequest(ctx context.Context, method, endpoint string, body io.Reader) (*http.Response, error) {
    token, err := c.getToken(ctx)
    if err != nil {
        return nil, fmt.Errorf("getting token: %w", err)
    }

    req, err := http.NewRequestWithContext(ctx, method, c.baseURL+endpoint, body)
    if err != nil {
        return nil, fmt.Errorf("creating request: %w", err)
    }

    req.Header.Set("Authorization", "bearer "+token)
    req.Header.Set("Content-Type", "application/json")

    return c.httpClient.Do(req)
}

Credential Management

Manage API credentials through the MyCarrierPackets Integration Tools portal: https://mycarrierpackets.com/IntegrationTools

Store credentials securely using environment variables:

export MCP_USERNAME="your_integration_username"
export MCP_PASSWORD="your_integration_password"

Carrier Invitations (Intellivite)

Three methods exist to invite carriers to complete onboarding packets.

Method 1: API-Based Invitation (Recommended)

Send invitations programmatically with user association.

With MCP User Association:

POST /api/v1/Carrier/EmailPacketInvitation
    ?dotNumber={DOTNumber}
    &docketNumber={MC,FF,MX}
    &carrierEmail={email}
    &username={customerMCPUsername}

Without User Association:

POST /api/v1/Carrier/EmailPacketInvitation
    ?dotNumber={DOTNumber}
    &docketNumber={MC,FF,MX}
    &carrierEmail={email}

Parameters:

Method 2: Link-Based Invitation

Generate invitation URLs for TMS-generated emails.

Full Carrier Link (Recommended):

https://mycarrierpackets.com/{CustomerIntelliviteID}/Carrier/Intellivite/{CustomerMCPUserID}/{DOTNumber}/{DocketNumber}

Example:

https://mycarrierpackets.com/ea72823e-1506-4b72-a3b0-a488e1ba2f1e/Carrier/Intellivite/brenda/23868/MC113843

Intrastate Carrier Link (DOT only):

https://mycarrierpackets.com/{CustomerIntelliviteID}/Carrier/Intellivite/{CustomerMCPUserID}/{DOTNumber}

Basic Link (no pre-fill):

https://mycarrierpackets.com/{CustomerIntelliviteID}/Carrier/Intellivite

Method 3: Direct MCP URL

Redirect users to MyCarrierPackets portal with pre-filled data.

https://mycarrierpackets.com/RegisteredCustomer/SendCarrierPacket
    ?dotNumber={dotNumber}
    &docketNumber={docketNumber}

Preview Carrier Before Invitation

Preload carrier data, risk assessment, and certificates before sending invitations.

POST /api/v1/Carrier/PreviewCarrier
    ?DOTNumber={DOTNumber}
    &docketNumber={MC,FF,MX}

Response:

{
  "CarrierID": 12345,
  "DotNumber": 23868,
  "DocketNumber": "MC113843",
  "CompanyName": "Sample Trucking LLC",
  "Status": "Active",
  "RiskAssessment": {
    "Overall": "Low",
    "Authority": "Pass",
    "Insurance": "Pass",
    "Safety": "Pass",
    "Operation": "Pass"
  },
  "CertData": {
    "Status": "Current",
    "Certificates": []
  },
  "IsMonitored": false,
  "IsBlocked": false
}

Carrier Data Management

Get Full Carrier Data

Retrieve comprehensive carrier profile including packet data.

POST /api/v1/Carrier/GetCarrierData
    ?DOTNumber={DOTNumber}
    &DocketNumber={MC,FF,MX}

Response includes:

• Legal name, DBA, address, contact info
• Carrier equipment and truck types
• Cargo hauled and lanes
• Payment information
• Risk assessment details (AssureAdvantage)
• TIN matching results
• Document blob names for retrieval

Go Implementation

type CarrierData struct {
    DOTNumber       int    `json:"DOTNumber"`
    DocketNumber    string `json:"DocketNumber"`
    LegalName       string `json:"LegalName"`
    DBAName         string `json:"DBAName"`
    Street          string `json:"Street"`
    City            string `json:"City"`
    State           string `json:"State"`
    ZipCode         string `json:"ZipCode"`
    Phone           string `json:"Phone"`
    Status          string `json:"Status"`
    RiskAssessment  *RiskAssessment `json:"RiskAssessmentDetails"`
}

type RiskAssessment struct {
    Overall   string `json:"Overall"`
    Authority string `json:"Authority"`
    Insurance string `json:"Insurance"`
    Safety    string `json:"Safety"`
    Operation string `json:"Operation"`
}

func (c *MCPClient) GetCarrierData(ctx context.Context, dotNumber int, docketNumber string) (*CarrierData, error) {
    endpoint := fmt.Sprintf("/api/v1/Carrier/GetCarrierData?DOTNumber=%d&DocketNumber=%s", dotNumber, docketNumber)

    resp, err := c.doRequest(ctx, "POST", endpoint, nil)
    if err != nil {
        return nil, err
    }
    defer resp.Body.Close()

    if resp.StatusCode != http.StatusOK {
        body, _ := io.ReadAll(resp.Body)
        return nil, fmt.Errorf("GetCarrierData returned %d: %s", resp.StatusCode, string(body))
    }

    var carrier CarrierData
    if err := json.NewDecoder(resp.Body).Decode(&carrier); err != nil {
        return nil, fmt.Errorf("decoding carrier data: %w", err)
    }

    return &carrier, nil
}

Get Carrier Contacts

Retrieve authorized and verified users for a carrier.

POST /api/v1/Carrier/GetCarrierContacts
    ?DOTNumber={DOTNumber}
    &docketNumber={DocketNumber}

Response:

{
  "Success": true,
  "Carrier": {
    "DOTNumber": 23868,
    "Contacts": [
      {
        "FirstName": "John",
        "LastName": "Smith",
        "Title": "Owner",
        "Phone": "555-123-4567",
        "Email": "john@sample.com",
        "AuthorizedForPackets": true,
        "VerificationStatus": "Verified"
      }
    ]
  }
}

Find Associated Carriers (Fraud Detection)

Search for carriers with shared phone numbers or email addresses.

POST /api/v1/Carrier/FindAssociatedCarriers
    ?phone={phoneNumber}
    &email={emailAddress}

Response:

{
  "Success": true,
  "AssociatedCarriersCount": 3,
  "AssociatedCarriers": [
    {
      "DOTNumber": 23868,
      "CompanyName": "Sample Trucking LLC",
      "PhoneAssociationTypes": [
        { "AssociationType": 1, "Description": "FMCSA Contact" }
      ],
      "EmailAssociationTypes": []
    }
  ]
}

Completed Packets Polling

Poll for carriers that have completed packets within a date range.

POST /api/v1/Carrier/CompletedPackets
    ?fromDate={YYYY-MM-DDTHH:MM:SS}
    &toDate={YYYY-MM-DDTHH:MM:SS}

Polling interval: 5-15 minutes recommended

Response:

[
  {
    "DOTNumber": 23868,
    "DocketNumber": "MC113843",
    "LegalName": "Sample Trucking LLC",
    "CompletedDate": "2024-01-15T14:30:00Z"
  }
]

Go Polling Implementation

func (c *MCPClient) PollCompletedPackets(ctx context.Context, fromDate, toDate time.Time) ([]CompletedPacket, error) {
    endpoint := fmt.Sprintf(
        "/api/v1/Carrier/CompletedPackets?fromDate=%s&toDate=%s",
        fromDate.Format("2006-01-02T15:04:05"),
        toDate.Format("2006-01-02T15:04:05"),
    )

    resp, err := c.doRequest(ctx, "POST", endpoint, nil)
    if err != nil {
        return nil, err
    }
    defer resp.Body.Close()

    var packets []CompletedPacket
    if err := json.NewDecoder(resp.Body).Decode(&packets); err != nil {
        return nil, fmt.Errorf("decoding completed packets: %w", err)
    }

    return packets, nil
}

type CompletedPacket struct {
    DOTNumber     int       `json:"DOTNumber"`
    DocketNumber  string    `json:"DocketNumber"`
    LegalName     string    `json:"LegalName"`
    CompletedDate time.Time `json:"CompletedDate"`
}

Assure Advantage Carrier Monitoring

Monitoring Overview

Assure Advantage provides continuous carrier monitoring with automatic updates when insurance, authority, safety, or operational status changes.

Get Monitored Carriers List

POST /api/v1/Carrier/MonitoredCarriers
    ?pageNumber={1}
    &pageSize={2500}

Max page size: 5000 Pagination: Check X-Pagination header for total pages

Response:

[
  {
    "DOTNumber": 23868,
    "DocketNumber": "MC113843",
    "IntrastateNumber": null,
    "CreatedDate": "2024-01-01T00:00:00Z",
    "LastModifiedDate": "2024-01-15T14:30:00Z"
  }
]

Add Carrier to Monitoring

POST /api/v1/Carrier/RequestMonitoring

Body:
{
  "DOTNumber": 23868,
  "DocketNumber": "MC113843"
}

For intrastate carriers, use IntrastateNumber instead.

Remove Carrier from Monitoring

POST /api/v1/Carrier/CancelMonitoring

Body:
{
  "DOTNumber": 23868,
  "DocketNumber": "MC113843"
}

Poll for Carrier Changes

Monitor changes to carrier insurance, risk assessment, and status.

POST /api/v1/Carrier/CarriersChanges
    ?fromDate={YYYY-MM-DDTHH:MM:SS}
    &toDate={YYYY-MM-DDTHH:MM:SS}
    &pageNumber={1}
    &pageSize={250}

Polling interval: Minimum 4 minutes, recommended 5-15 minutes Max page size: 500

Response includes:

• ChangeCategories - Array of change types
• CarrierDetails - Updated carrier data

Bulk Carrier Data Sync

Retrieve full data for all monitored carriers (heavy operation).

POST /api/v1/Carrier/MonitoredCarrierData
    ?pageNumber={1}
    &pageSize={250}

Max page size: 500

Risk Assessment APIs

Single Carrier:

POST /api/v1/Carrier/GetCarrierRiskAssessment
    ?dotNumber={DOTNumber}
    &docketNumber={DocketNumber}

All Monitored Carriers:

POST /api/v1/Carrier/GetMonitoredCarriersRiskAssessment
    ?pageNumber={1}
    &pageSize={250}

Response:

{
  "RiskAssessmentDetails": {
    "Authority": {
      "TotalPoints": 0,
      "OverallRating": "Pass",
      "Infractions": []
    },
    "Insurance": {
      "TotalPoints": 0,
      "OverallRating": "Pass",
      "Infractions": []
    },
    "Safety": {
      "TotalPoints": 5,
      "OverallRating": "Warning",
      "Infractions": ["Recent inspection violation"]
    },
    "Operation": {
      "TotalPoints": 0,
      "OverallRating": "Pass",
      "Infractions": []
    }
  }
}

Document & Image Retrieval

Get Individual Document

Retrieve COI, W9, or eAgreement documents by blob name.

POST /api/v1/Carrier/GetDocument
    ?name={BlobName}

Blob names are obtained from GetCarrierData response.

Example blob name: company-agreement/12/guid-abc123...

Full Packet PDF

Browser View (requires portal login):

https://mycarrierpackets.com/Download/GetCarrierPacket
    ?DOTNumber={DOTNumber}
    &inline=True

API Download:

GET https://mycarrierpackets.com/api/Download/CarrierPacket/{DOTNumber}

Note: API download uses a separate token endpoint:

GET https://mycarrierpackets.com/api/token

View Carrier Information

Add "View Carrier" button in TMS linking to MCP portal.

Standard:

https://mycarrierpackets.com/CarrierInformation/DOTNumber/{dotNumber}/DocketNumber/{docketNumber}

Intrastate:

https://mycarrierpackets.com/CarrierInformation/DOTNumber/{dotNumber}

With Insurance Request:

https://mycarrierpackets.com/CarrierInformation/DOTNumber/{dotNumber}/DocketNumber/{docketNumber}?requestInsurance=true

Carrier Actions

Block/Unblock Carriers

Block:

POST /api/v1/Carrier/BlockCarrier
Body: { "DOTNumber": 23868, "DocketNumber": "MC113843" }

Unblock:

POST /api/v1/Carrier/UnblockCarrier
Body: { "DOTNumber": 23868, "DocketNumber": "MC113843" }

Get Blocked List:

POST /api/v1/Carrier/BlockedCarriers
    ?pageNumber={1}
    &pageSize={2500}

Request User Verification

Request verification for a carrier contact (non-onboarding).

POST /api/v1/Carrier/RequestUserVerification
    ?userVerificationEmail={email}
    &dotNumber={DOTNumber}
    &docketNumber={DocketNumber}

Request VIN Verification

Send VIN verification request via text message.

POST /api/v1/Carrier/RequestVINVerification
Body:
{
  "deliveryOption": 2,
  "vinVerificationPhoneNumber": "555-123-4567",
  "dotNumber": 23868
}

Note: Only phone delivery (option 2) is supported.

Get Incident Reports

POST /api/v1/Carrier/GetCarrierIncidentReports
    ?DOTNumber={DOTNumber}
    &docketNumber={DocketNumber}

Get VIN Verifications

POST /api/v1/Carrier/GetCarrierVINVerifications
    ?DOTNumber={DOTNumber}
    &docketNumber={DocketNumber}

Get Updated Factoring Companies

POST /api/v1/Carrier/GetUpdatedFactoringCompanies
    ?fromDate={YYYY-MM-DDTHH:MM:SS}
    &toDate={YYYY-MM-DDTHH:MM:SS}

Integration Patterns

Data Mapping Best Practices

1. Field Locking: Mark monitored carrier fields as read-only in TMS
2. Blank Fields: If carrier is monitored but no data received, keep fields blank
3. Sync Process: Clear mapped fields before pulling fresh updates

Synchronization Workflow

1. User runs carrier sync report in TMS
2. TMS compares local monitored list with MCP MonitoredCarriers API
3. For missing carriers: Call RequestMonitoring
4. For extra carriers: Call CancelMonitoring
5. Call CarriersChanges for incremental updates
6. For full refresh: Call GetCarrierData for each carrier

Push vs Pull Integration

Pull Model (Recommended):

• Poll CompletedPackets every 5-15 minutes
• Poll CarriersChanges every 5-15 minutes
• Full sync with MonitoredCarrierData periodically

Push Model: Provide MCP with a webhook endpoint:

POST https://api.yourtms.com/{DOTNumber}/{DocketNumber}

MCP will call this endpoint when packets complete.

Polling Implementation

func (c *MCPClient) StartPolling(ctx context.Context, interval time.Duration, handler func([]CompletedPacket)) {
    ticker := time.NewTicker(interval)
    defer ticker.Stop()

    lastPoll := time.Now().Add(-interval)

    for {
        select {
        case <-ctx.Done():
            return
        case <-ticker.C:
            now := time.Now()
            packets, err := c.PollCompletedPackets(ctx, lastPoll, now)
            if err != nil {
                log.Printf("polling error: %v", err)
                continue
            }
            if len(packets) > 0 {
                handler(packets)
            }
            lastPoll = now
        }
    }
}

Pagination Handling

func (c *MCPClient) GetAllMonitoredCarriers(ctx context.Context) ([]MonitoredCarrier, error) {
    var allCarriers []MonitoredCarrier
    pageNumber := 1
    pageSize := 2500

    for {
        endpoint := fmt.Sprintf("/api/v1/Carrier/MonitoredCarriers?pageNumber=%d&pageSize=%d", pageNumber, pageSize)
        resp, err := c.doRequest(ctx, "POST", endpoint, nil)
        if err != nil {
            return nil, err
        }

        var carriers []MonitoredCarrier
        if err := json.NewDecoder(resp.Body).Decode(&carriers); err != nil {
            resp.Body.Close()
            return nil, err
        }
        resp.Body.Close()

        allCarriers = append(allCarriers, carriers...)

        // Check X-Pagination header for more pages
        pagination := resp.Header.Get("X-Pagination")
        if pagination == "" || len(carriers) < pageSize {
            break
        }
        pageNumber++
    }

    return allCarriers, nil
}

Error Handling

Common Error Responses

Error Handling Implementation

func (c *MCPClient) handleResponse(resp *http.Response) error {
    switch resp.StatusCode {
    case http.StatusOK:
        return nil
    case http.StatusUnauthorized:
        c.tokenMu.Lock()
        c.accessToken = ""
        c.tokenMu.Unlock()
        return fmt.Errorf("token expired, retry request")
    case http.StatusTooManyRequests:
        return fmt.Errorf("rate limited, reduce polling frequency")
    case http.StatusNotFound:
        return fmt.Errorf("carrier not found")
    default:
        body, _ := io.ReadAll(resp.Body)
        return fmt.Errorf("API error %d: %s", resp.StatusCode, string(body))
    }
}

Retry with Exponential Backoff

func (c *MCPClient) doRequestWithRetry(ctx context.Context, method, endpoint string, body io.Reader, maxRetries int) (*http.Response, error) {
    var lastErr error

    for attempt := 0; attempt < maxRetries; attempt++ {
        resp, err := c.doRequest(ctx, method, endpoint, body)
        if err == nil && resp.StatusCode == http.StatusOK {
            return resp, nil
        }

        if resp != nil {
            resp.Body.Close()
            if resp.StatusCode == http.StatusUnauthorized {
                // Clear token and retry immediately
                c.tokenMu.Lock()
                c.accessToken = ""
                c.tokenMu.Unlock()
                continue
            }
        }

        lastErr = err
        if lastErr == nil {
            lastErr = fmt.Errorf("request failed with status %d", resp.StatusCode)
        }

        // Exponential backoff
        backoff := time.Duration(1<<attempt) * time.Second
        select {
        case <-ctx.Done():
            return nil, ctx.Err()
        case <-time.After(backoff):
        }
    }

    return nil, fmt.Errorf("max retries exceeded: %w", lastErr)
}

API Endpoint Reference

Carrier Operations

Monitoring Operations

Blocking Operations

Other Operations

Troubleshooting

Authentication Issues

• 401 errors: Token expired or invalid credentials
• Solution: Re-authenticate and verify credentials in IntegrationTools portal

Missing Carrier Data

• Cause: Carrier not monitored or packet incomplete
• Solution: Check IsMonitored flag, verify packet completion status

Pagination Not Working

• Cause: Missing X-Pagination header check
• Solution: Parse pagination info from header, not response body

Rate Limiting

• Cause: Polling too frequently
• Solution: Increase polling interval to minimum 5 minutes

Document Retrieval Fails

• Cause: Invalid blob name or expired document
• Solution: Re-fetch carrier data to get current blob names