Chat APIDirect API access through SkillBoss

GPT-5.1 API

Adaptive reasoning model that dynamically adjusts thinking time based on task complexity.

Modelopenai/gpt-5.1
Pricing$5.00/$40.00 per 1M tokens
AuthBearer YOUR_API_KEY
Paymentsx402 + MPP

Interface

Endpoint: POST https://api.skillboss.co/v1/run · Model: openai/gpt-5.1

Standard API flow

cURL interface

Use cURL when you want the clearest raw HTTP example. This is the fastest way to validate auth, inputs, output shape, and the canonical endpoint before wiring the API into code or agent workflows.

cURL
curl -X POST https://api.skillboss.co/v1/run \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.1",
    "inputs": {
      // Your parameters here
    }
  }'

Quick Start

Start using GPT-5.1 in under 60 seconds

FOR AI AGENTS

Base URL: https://api.skillboss.co/v1

Model: openai/gpt-5.1

Auth: Bearer token — get at skillboss.co/console

Pricing: $5.00/$40.00 per 1M tokens, no subscription

Or auto-configure everything:

set up skillboss.co/skill.md

FOR DEVELOPERS

1

Get your API key at skillboss.co/console

2

POST to api.skillboss.co/v1 with model openai/gpt-5.1

3

Parse the JSON response. Auth, billing, and rate limits handled automatically.

Best-Fit Use Cases

3 workflows
01

Power assistants, copilots, and agent loops

02

Generate text, summaries, and reasoning outputs

03

Route prompts through one unified API key

Frequently Asked Questions

Docs · Browse all APIs

What is the GPT-5.1 API used for?

GPT-5.1 is a chat api available through SkillBoss. Teams use it to add GPT-5.1 to apps, automations, and AI agent workflows without managing separate vendor credentials. This page gives both humans and agents one stable place to understand the capability, pricing path, and invocation pattern before they ship it into production.

How do I call GPT-5.1 on SkillBoss?

Send a POST request to https://api.skillboss.co/v1/run with "model": "openai/gpt-5.1" and an "inputs" object. SkillBoss handles auth, billing, and the unified API layer. If you are testing the endpoint manually, start with the cURL or Python tab below. If you are wiring an autonomous agent, use the x402 or MPP tabs when the payment path matters.

Why use SkillBoss instead of the native openai setup?

SkillBoss gives you one API key, pay-as-you-go billing, and a consistent integration flow across many APIs. That reduces setup time and makes the endpoint easier to use in Claude Code, Cursor, Windsurf, and other agents. It also gives you a canonical public page, consistent docs, and one billing surface instead of forcing each team to juggle provider-specific auth and pricing rules.

Is GPT-5.1 good for AI agents as well as human developers?

Yes. This page is designed as a discovery surface for both humans and agents: clear capability framing, direct code examples, and a stable canonical URL make it easier to find, evaluate, and invoke. The structure is deliberate so search engines, agent runtimes, and developers can all understand what the endpoint does, how it is paid for, and which next pages matter.

Does GPT-5.1 support x402 or MPP machine payments?

GPT-5.1 is better served through the standard SkillBoss API key flow. x402 and MPP work best when pricing is deterministic before execution, which is not the safest assumption for this endpoint.

Start using GPT-5.1 now

One API key, 100+ models, zero markup

AI Agents

Tell your agent:

set up skillboss.co/skill.md

Auto-configures base URL, auth, and GPT-5.1 access. Works with Claude Code, Cursor, Windsurf, and any MCP-compatible agent.

Developers

1. Get API key at skillboss.co/console

2. POST to api.skillboss.co/v1/run

3. Model: openai/gpt-5.1

Pay-as-you-go. $5.00/$40.00 per 1M tokens. No subscription required.