diffbot

diffbot is a skill for Claude Code, Codex from withoneai/one-agent-plugin. It costs 107 tokens per session (3,365 once invoked), scanned A, a copy of 2-chat, MIT.

A web-data extraction service that uses machine learning and image recognition to turn web pages into structured information. It also provides web scraping, knowledge graphs, and data-enrichment tools.

In plain words
What is it for?
Use it to crawl websites, extract structured data, build or query knowledge graphs, and enrich datasets through APIs.
Why use it?
It reduces the manual work of collecting and organizing information from many web pages.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to crawl websites, extract structured data, build or query knowledge graphs, and enrich datasets through APIs.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/withoneai/one-agent-plugin/diffbot
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add withoneai/one-agent-plugin --skill diffbot
Clone the repo
git clone --depth 1 https://github.com/withoneai/one-agent-plugin

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for diffbot

README.md
[![agentmods](https://agentmods.dev/badge/skills/withoneai/one-agent-plugin/diffbot/github.svg)](https://agentmods.dev/skills/withoneai/one-agent-plugin/diffbot)
Your own site
<a href="https://agentmods.dev/skills/withoneai/one-agent-plugin/diffbot"><img src="https://agentmods.dev/badge/skills/withoneai/one-agent-plugin/diffbot/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for diffbot

Your own site · 80×15
<a href="https://agentmods.dev/skills/withoneai/one-agent-plugin/diffbot"><img src="https://agentmods.dev/badge/skills/withoneai/one-agent-plugin/diffbot.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 107 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,365 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 78% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00107 $0.03365
Opus 5 $0.00053 $0.01682
Sonnet 5 $0.00021 $0.00673
Haiku 4.5 $0.00011 $0.00336

Measured 5d ago against content hash 6dd49e5b5114, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

diffbot scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

78% identical to 2-chat — 203 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

platforms/one-diffbot/skills/diffbot/SKILL.md · 238 lines

How it starts

The opening of the file, as written. The whole thing — 238 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Diffbot through One

Diffbot uses machine learning and computer vision to extract structured data from web pages automatically. It provides tools and APIs for web scraping, knowledge graphs, and data enrichment.

One exposes Diffbot through four MCP tools. The table below carries real action ids from One's knowledge base, so for a common operation you can skip search and go straight to reading the action's parameters.

How to run an action

  1. Find the action in the table below, or call search_one_platform_actions with platform diffbot if it is not listed.
  2. Call get_one_action_knowledge with the action id. Do this every time, including for actions in this table. The table gives you the id, not the parameters.
  3. Call execute_one_action with parameters copied from that knowledge.

Never guess a parameter name, a body field, or an enum value. The knowledge has the real schema, and a guessed field is either a 400 or a silent write of the wrong thing.

Before you start

Call list_one_integrations once and confirm Diffbot is connected. If it is missing, the user has not connected it: say so and point them at https://app.withone.ai rather than reaching for raw HTTP.

Each connection carries an access field. If it reports {"policy": "methods", "methods": ["GET"]} the agent is read-only here, so plan a read-only answer instead of attempting a write that will be refused.

Before a write

Creates, updates, deletes and sends land on a real Diffbot account and cannot be recalled. State the action and the specific target in one line before the first write in a task, and let the user stop you. Reads need no confirmation.

Actions

CustomApis

Action Method Path Action id
Retrieve Custom APIs (for a Token) GET /v3/custom conn_mod_def::GJ2Tr05G2Uw::8Cflq67eRnipHJ7GqS_YQA
Create or Update a Custom API POST /v3/custom conn_mod_def::GJ2TrZpygdc::ZEbzncWPTOmiHAt3ddwoaA
Delete a Custom API DELETE /v3/custom conn_mod_def::GJ2Trh5ZydE::0NKKkvj-TgSXuqb710qzrA

Read the full file on GitHub · 238 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 238 lines · 0 tokens per session scan A 6dd49e5b5114

Subscribe to this mod's changes

diffbot is a skill published in the GitHub repository withoneai/one-agent-plugin (1 stars, last pushed 19d ago), licensed MIT. It adds 107 tokens to every session and 3,365 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 78% identical to 2-chat, differing in 203 lines, and is treated as a copy.

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