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Free Pastebin API: Create Pastes with curl, Python, or an AI Agent

Need a pastebin API that works from a single curl command—or from Claude, ChatGPT, Hermes, or n8n—without signing up for a developer portal? Agent Media Tools exposes POST /api/paste so you can create pastes for logs, code, prompts, and agent intermediate results in one request.

This guide covers the free API contract, curl and Python examples, how AI agents use pastes as ephemeral memory, and how to fetch raw text after create.

Why a Programmable Pastebin?

Most paste sites want a browser session. A zero-auth REST pastebin is better when you are already in a terminal or automation loop:

• Agent memory: dump context, debug output, or long tool results and share a short URL
• CI/CD logs: post failure logs from a pipeline without opening a UI
• Code snippets: share highlighted source from scripts
• Temporary storage: optional expiration (hours) for ephemeral data
• Raw fetch: /raw endpoint for piping into other tools

API Overview

Property	Value
Endpoint	POST /api/paste
Content-Type	application/json
Required field	content (string, up to 500 KB)
Optional fields	title, syntax, expires_in_hours, is_public
Response	JSON with slug, url, and raw_url
Auth	Not required for basic create
Max size	500 KB per paste

Create is always a POST with a JSON body. That is the standard REST pattern (there is no public “create paste with GET”). After create, you read content with GET on the page or raw_url.

curl — Create a Paste in One Command

💡 Windows users: Run these from Git Bash or WSL — PowerShell's curl is an alias for Invoke-WebRequest.

Simple text paste

curl -X POST https://agentmediatools.com/api/paste \
  -H "Content-Type: application/json" \
  -d '{"content": "Hello from an AI agent! This paste was created via curl."}'

Example response:

{
  "success": true,
  "slug": "aB3xK9mP2q",
  "url": "https://agentmediatools.com/p/aB3xK9mP2q",
  "raw_url": "https://agentmediatools.com/p/aB3xK9mP2q/raw"
}

Share url for a readable page; use raw_url for plain text in scripts.

Syntax highlighting and expiration

curl -X POST https://agentmediatools.com/api/paste \
  -H "Content-Type: application/json" \
  -d '{
    "content": "def hello(name):\n    print(f\"Hello, {name}!\")",
    "title": "Python hello world",
    "syntax": "python",
    "expires_in_hours": 24
  }'

Paste a log file

CONTENT=$(python3 -c "import json,sys; print(json.dumps(sys.stdin.read()))" < deploy.log)
curl -X POST https://agentmediatools.com/api/paste \
  -H "Content-Type: application/json" \
  -d "{\"content\": $CONTENT, \"title\": \"Deploy Log\", \"syntax\": \"text\"}"

Fetch Raw Paste Text (GET)

After create, retrieve plain text without HTML:

curl -s https://agentmediatools.com/p/aB3xK9mP2q/raw

That is the usual answer when someone wants “pastebin get API” behavior: create with POST, read with GET on /raw.

Python Examples

import requests

resp = requests.post(
    "https://agentmediatools.com/api/paste",
    json={
        "content": "Hello from Python!",
        "title": "Python test paste",
        "syntax": "text",
    },
)
data = resp.json()
print(data["url"], data["raw_url"])

# Later: fetch raw body
print(requests.get(data["raw_url"]).text)

Using the Pastebin API with AI Agents

Claude, ChatGPT, Hermes, and similar agents can treat the pastebin as ephemeral memory—store long outputs, then pass short URLs between steps.

Agent workflow: summarize and store

1. Extract document text via PDF to text or OCR
2. Generate a summary
3. POST the summary to /api/paste
4. Return the paste URL to the user

Agent workflow: debug log handoff

1. Capture stack traces or tool errors
2. Create a paste with syntax: "text"
3. Share the URL instead of truncating the chat

MCP: create_paste for Claude Desktop / Cursor

With the Agent Media Tools MCP server, ask in natural language:

"Take this error log and create a paste I can share with my team."

MCP exposes the create_paste tool so the model builds the JSON, calls the API, and returns the URL.

Comparison: Agent Media Tools vs Typical Pastebins

Feature	Agent Media Tools	Many pastebin sites
API auth	None required for basic create	API key or login
curl-friendly	Single POST	Often cookies / form tokens
Raw text URL	Yes (raw_url)	Varies
Expiration	Optional hours	Coarse presets
MCP / agents	Built-in create_paste	Usually none

FAQ

Is the Pastebin API free?

Yes for basic use—no signup or API key—subject to current free-tier daily limits. See pricing for plan limits.

Can I create a paste without a POST body?

Create requires POST with JSON content. Reading an existing paste uses GET on /p/{slug} or /p/{slug}/raw.

Do pastes expire?

Set expires_in_hours when creating. Expired pastes return 410 Gone and are cleaned up.

Is there a browser UI?

Yes: free online pastebin tool on Agent Media Tools.

Related tools

• Pastebin tool — browser create flow
• QR Code API — encode a paste URL as a QR
• PDF to text — extract documents before pasting summaries
• Resize images with an AI agent
• Short URLs — shorten tracking links

Tags: free pastebin API, pastebin API curl, AI agent memory, create paste REST, raw paste URL, MCP create_paste