API Documentation

API Documentation Cover Image

API Documentation (Developer Capabilities Layer)

This document provides the authoritative, implementation-ready reference for the Developer Capabilities Layer of the platform API. The API exposes standardized, programmable AI and infrastructure capabilities intended to be embedded into production systems, internal services, and customer-facing products with predictable behavior, clear operational boundaries, and enterprise-grade controls.

The Developer Capabilities Layer is designed for teams that need to integrate AI workflows into real systems: automated processing pipelines, product features, internal tooling, and high-throughput services. The API prioritizes stability (long-term compatibility), controllability (explicit quotas, limits, and policy controls), and horizontal scalability (high concurrency, batch execution, and asynchronous workflows).

This documentation is structured to be executable: it defines authentication requirements, base URLs, request and response schemas, versioning rules, idempotency, pagination conventions, error models, retry policies, rate limiting behavior, and operational best practices. It also includes endpoint examples that can be copied into production code with minimal modifications.

Audience note: This document assumes familiarity with HTTP/HTTPS, REST conventions, JSON payloads, and standard production integration patterns (timeouts, retries, observability, and secure secret storage).

0. Quick Navigation

Use this section as a high-level index when implementing an integration. The sections below are ordered to match a typical production rollout: setup, authentication, request patterns, endpoint usage, error handling, and operations.

  • 1. Target Audience & Integration Scope
  • 2. API Fundamentals: Base URL, Versioning, Environments
  • 3. Authentication & Authorization
  • 4. Core Concepts: Projects, Keys, Jobs, Resources
  • 5. Request/Response Model (Envelope + Metadata)
  • 6. Idempotency, Retries, and Safe Replays
  • 7. Rate Limits, Quotas, and Usage Monitoring
  • 8. Error Handling, Debugging, and Support Workflow
  • 9. Pagination, Filtering, Sorting Conventions
  • 10. Example Endpoints (Executable Reference)
  • 11. Security & Compliance Recommendations
  • 12. Operational Best Practices (SLO/SLA Readiness)
1. Target Audience & Integration Scope

This API is designed for technical teams that require deterministic, automatable access to AI capabilities as part of a larger system architecture. Typical integrations include backend services, workflow orchestrators, data pipelines, and product features where the API becomes a dependency with defined reliability and cost expectations.

  • Backend Engineers building scalable services and microservices

  • Full Stack Developers integrating AI features into applications

  • API Integration Specialists responsible for third-party dependencies

  • Data/ML teams operationalizing inference and enrichment pipelines

  • Platform/Infra teams operating high-concurrency workloads

  • Products embedding AI as a core capability with strict UX requirements

  • Organizations standardizing AI usage across multiple business units

  • Teams building end-to-end AI-powered automation and decision systems

1.1 Supported Integration Styles
  • Direct synchronous calls: best for low-latency operations and interactive product features.
  • Asynchronous jobs: best for heavy workloads, batch operations, and long-running tasks.
  • Batch processing: best for bulk input processing with predictable cost and throughput.
  • Hybrid model: prototype in SaaS/UI, then productionize via API with the same parameters.
2. API Fundamentals
2.1 Base URL & Environments

The API is served exclusively over HTTPS. Use separate API Keys per environment to prevent accidental cross-environment usage. In production deployments, it is strongly recommended to use distinct projects for dev, staging, and production.

Example Base URLs (Replace With Your Actual Host)

  • Production: https://api.example.com
  • Staging: https://staging-api.example.com
  • Sandbox/Dev: https://sandbox-api.example.com

If your organization uses private network access (VPN / VPC peering / private endpoints), your base URL may differ. Contact support to confirm your enterprise routing and allowlist configuration.

2.2 API Versioning & Compatibility

The API is versioned to ensure long-term stability. Versioning can be expressed via URL path (recommended) and may also be supported via headers depending on deployment configuration.

  • Path-based versioning: /v1, /v2, etc.
  • Backward compatibility: minor fields may be added without breaking existing clients.
  • Breaking changes: introduced only in new major versions and announced in advance.
2.3 Content Types

Requests and responses use JSON. You must set appropriate headers for reliable parsing and security controls.

  • Request: Content-Type: application/json
  • Response: Content-Type: application/json
  • Optional: Accept: application/json for explicit negotiation
3. Authentication & Authorization

All requests require authentication. Unauthenticated requests return 401 Unauthorized. Authorization is enforced by project scope, API Key permissions, and (when enabled) organization policy.

API Keys

  • Each project can generate multiple keys (recommended: separate keys per service and environment)
  • Keys can be rotated, disabled, and revoked at any time in the dashboard
  • Keys should never be embedded in client-side code or public repositories
  • Apply the principle of least privilege (only grant permissions required for the integration)

Treat API Keys like production credentials. Use a secret manager (KMS/Vault/SSM) and rotate keys regularly.

Authentication Header

  • Provide the key via a request header
  • Missing/invalid keys return structured error responses
  • Expired or revoked keys return 401 with actionable messages
Header Format
Authorization: Bearer YOUR_API_KEY

If your deployment uses an alternative header (e.g., X-API-Key), follow your enterprise configuration.

3.1 Permission Scopes (Conceptual Model)

Enterprise plans typically support permission scopes to restrict access by capability. Example scope categories:

  • read: view resources, usage, and job status
  • write: create tasks/jobs, submit payloads, start execution
  • admin: manage keys, quotas, policies, and organization-level settings

If your organization requires SSO/IAM integration or IP allowlisting, these controls are applied at the Platform layer.

4. Core Concepts

The API organizes work into projects and resources. Understanding the following concepts will help you design a clean integration.

Project

  • A logical isolation boundary for data, keys, quotas, and policy
  • Recommended: one project per environment and/or business domain
  • Contains API Keys, resources, and usage metrics

Resource

  • A managed object such as a dataset, workflow, configuration, or artifact
  • Resources have stable IDs and can be listed, retrieved, and updated
  • Access controlled by project and permission scopes

Job (Asynchronous Execution)

  • A long-running task executed asynchronously (recommended for heavy workloads)
  • Jobs have status transitions: queuedrunningsucceeded/failed/canceled
  • Jobs produce outputs and execution metadata for auditing and debugging

Run (Execution Instance)

  • An immutable record of a single execution attempt
  • Contains configuration snapshot, timing, costs, and error details
  • Supports safe retries and post-run analysis
4.1 Recommended Project Structure
  • project-dev: rapid iteration, verbose logs, lower quotas
  • project-staging: production-like testing, integration validation
  • project-prod: strict permissions, monitored quotas, stable configs
5. Request/Response Model
5.1 Standard Response Envelope

All successful responses follow a consistent envelope to simplify parsing and observability. The response includes a request_id which can be used for tracing and support.

{
  "request_id": "req_01HXYZABCDEF1234567890",
  "success": true,
  "data": { },
  "meta": {
    "timestamp": "2026-02-13T21:30:45Z",
    "version": "v1"
  }
}
5.2 Standard Error Envelope

Errors are returned in a structured format that supports automated handling and clear debugging. Clients should treat request_id as the primary correlation identifier.

{
  "request_id": "req_01HXYZABCDEF1234567890",
  "success": false,
  "error": {
    "type": "invalid_request",
    "code": "missing_field",
    "message": "The field 'input.text' is required.",
    "param": "input.text",
    "docs": "https://docs.example.com/errors#missing_field"
  }
}
5.3 Common Headers Returned
  • X-Request-Id: mirrors request_id for correlation
  • Retry-After: returned on 429 and sometimes 503
  • X-RateLimit-Limit / Remaining / Reset: rate limit metadata where supported
5.4 Timestamps and Time Zones

All timestamps are returned in ISO 8601 format and normalized to UTC (Z). Clients should not assume local time zones.

6. Idempotency, Retries, and Safe Replays

Production integrations must handle network failures and transient errors safely. For any endpoint that creates a resource, we recommend using an idempotency key to prevent duplicate creation when requests are retried.

6.1 Idempotency Keys

Provide a unique idempotency key for create operations. If the same key is used again with the same request body, the API will return the original result (or reject if the body differs).

Idempotency-Key: 5f2f1b3a-8f3b-4c3e-9e18-0f3a7b1c9a22
6.2 Retry Policy (Recommended)
  • Retry only on transient status codes: 408, 429, 502, 503, 504
  • Use exponential backoff with jitter
  • Respect Retry-After headers when provided
  • Set reasonable client timeouts (connect + read) and avoid infinite retries
6.3 Timeouts

Configure client timeouts explicitly. Defaults from HTTP libraries are often unsafe for production. Consider separate timeouts for connect and read, and align them with your SLO requirements.

7. Rate Limits, Quotas, and Usage Monitoring
7.1 Rate Limiting

Rate limits protect platform stability and ensure fair usage. Limits may differ by endpoint category and plan. When a limit is exceeded, the API returns 429 Too Many Requests.

  • Limits are typically enforced per API Key and per time window
  • Some endpoints may have stricter limits due to compute intensity
  • Backoff and retry should be implemented on the client side
7.2 Quotas

Quotas represent the total allowed usage for your plan (e.g., monthly units, compute credits, or request budgets). Quotas may be enforced at project and organization levels.

7.3 Usage Endpoint (Example)

Use a usage endpoint to query consumption programmatically. This allows you to build internal dashboards, alerts, and cost controls.

GET /v1/usage?from=2026-02-01&to=2026-02-13
8. Error Handling, Debugging, and Support Workflow
8.1 Standard HTTP Status Codes

The API uses standard HTTP status codes combined with structured error payloads. Clients should not rely on message strings; use error type and code fields for programmatic handling.

  • 400 Bad Request – malformed payload, missing fields, or invalid parameters
  • 401 Unauthorized – missing/invalid/revoked API key
  • 403 Forbidden – permission denied by scope, policy, or allowlist rules
  • 404 Not Found – unknown resource ID or endpoint
  • 409 Conflict – idempotency conflict or resource state conflict
  • 422 Unprocessable Entity – valid JSON but semantically invalid (schema/rules failure)
  • 429 Too Many Requests – rate limited
  • 500 Internal Server Error – platform fault (retry with backoff)
  • 502/503/504 – transient upstream/service issues (retryable)
8.2 Debugging Checklist
  • Log request_id, status code, and error payload for every failure
  • Confirm environment (dev/staging/prod) and correct API Key scope
  • Check quota remaining and rate limit headers
  • Validate JSON schema and required fields
  • Retry only retryable errors using backoff and idempotency keys
8.3 What to Provide to Support

To speed up investigation, include: request_id, timestamp, endpoint path, and a sanitized payload sample. Never send secrets or full sensitive datasets via email.

9. Pagination, Filtering, and Sorting

List endpoints support pagination to ensure stable performance. Use cursor-based pagination where possible.

9.1 Cursor Pagination (Recommended)
GET /v1/resources?limit=50&cursor=cur_01HXYZ...
  • limit: number of items to return (default and max depend on endpoint)
  • cursor: opaque token returned by the previous response
9.2 Filtering
GET /v1/jobs?status=running&created_after=2026-02-01T00:00:00Z
9.3 Sorting
GET /v1/runs?sort=-created_at

Sorting uses a leading - for descending order. Supported fields vary by endpoint and are documented in each endpoint section.

10. Example Endpoints (Executable Reference)

This section provides concrete endpoint definitions and examples. Paths, fields, and payloads represent a stable reference model. Replace hostnames and keys with your environment-specific values.

10.1 Health Check

Use this endpoint to validate connectivity, DNS, TLS handshake, and basic platform availability from your environment. This is also suitable for uptime monitoring checks.

GET /v1/health
{
  "request_id": "req_01HXYZ...",
  "success": true,
  "data": {
    "status": "ok",
    "uptime": "99.99%",
    "region": "us-west",
    "time": "2026-02-13T21:30:45Z"
  }
}
10.2 Create an Asynchronous Job

Create a job for long-running workloads. The job returns immediately with an ID. You can poll job status or subscribe to webhooks (if enabled) for completion events.

POST /v1/jobs
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json
Idempotency-Key: 6a7f1f02-2d38-4d2a-9f8e-0afacb1c0d11
{
  "type": "ai_task",
  "input": {
    "text": "Summarize the following document into structured bullet points..."
  },
  "options": {
    "mode": "asynchronous",
    "priority": "normal",
    "timeout_seconds": 120
  },
  "output": {
    "format": "json",
    "schema_hint": {
      "fields": ["title", "summary", "key_points", "risks", "next_actions"]
    }
  },
  "metadata": {
    "external_id": "ticket_98321",
    "tags": ["ops", "summary", "v1"]
  }
}
{
  "request_id": "req_01HXYZ...",
  "success": true,
  "data": {
    "job_id": "job_01HXYZABCDEF123456",
    "status": "queued",
    "created_at": "2026-02-13T21:30:45Z"
  },
  "meta": {
    "version": "v1"
  }
}
10.3 Get Job Status
GET /v1/jobs/job_01HXYZABCDEF123456
{
  "request_id": "req_01HXYZ...",
  "success": true,
  "data": {
    "job_id": "job_01HXYZABCDEF123456",
    "status": "running",
    "progress": 0.42,
    "started_at": "2026-02-13T21:31:02Z",
    "estimated_finish_at": "2026-02-13T21:31:55Z"
  }
}
10.4 Retrieve Job Output

Once a job completes, retrieve its output. If the job fails, the error payload will include retry guidance.

GET /v1/jobs/job_01HXYZABCDEF123456/output
{
  "request_id": "req_01HXYZ...",
  "success": true,
  "data": {
    "result": {
      "title": "Document Summary",
      "summary": " ... ",
      "key_points": [" ... ", " ... "],
      "risks": [" ... "],
      "next_actions": [" ... "]
    }
  }
}
10.5 List Jobs (Pagination + Filters)
GET /v1/jobs?status=succeeded&limit=20&cursor=cur_01HXYZ...
10.6 Cancel a Job
POST /v1/jobs/job_01HXYZABCDEF123456/cancel
{
  "request_id": "req_01HXYZ...",
  "success": true,
  "data": {
    "job_id": "job_01HXYZABCDEF123456",
    "status": "canceled"
  }
}
11. Security & Compliance Recommendations
  • Secrets: store API keys in a secret manager, not environment variables in shared hosts.
  • Logging: never log raw secrets or full sensitive payloads; log request_id and hashes instead.
  • Data minimization: send only the minimum required fields for the task.
  • Retention: define retention policy for outputs and logs aligned with internal compliance.
  • Access: rotate keys, restrict scopes, and separate production from non-production access.

If your organization requires enhanced controls (SSO, IP allowlisting, private deployment, audit exports), these are handled at the Platform layer. Contact support to align your security posture.

12. Operational Best Practices (Production Readiness)

Treat this API as a production dependency. Define SLOs (latency, error rate, success rate), implement monitoring, and establish incident handling procedures. For critical workflows, prefer asynchronous execution to reduce tail latency.

  • Observability: capture request_id, latency, status codes, retry counts, and quota usage.
  • Backpressure: apply internal queue limits and concurrency caps to avoid self-induced overload.
  • Canary releases: roll out configuration changes gradually and measure impact.
  • Runbooks: document retry behavior, escalation, and rollback procedures.
Contact & Support

For technical questions, integration support, or incident reports, contact support and include the request_id and timestamps for faster investigation. Do not send API keys or sensitive datasets by email.

Email: [email protected]