notion-api

notion-api is a skill for Claude Code, Codex from avizmarlon/agent-skills. It costs 79 tokens per session (2,406 once invoked), scanned A, original, MIT.

A direct connection to Notion's REST API, which is the web interface for reading and changing Notion data programmatically.

In plain words
What is it for?
It helps query databases, update many pages, scan records, copy page content, upload files, and create databases.
Why use it?
It handles large or paginated sets of Notion pages more reliably than tools meant for individual pages.

Skill for Claude CodeCodex

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

Good fit It helps query databases, update many pages, scan records, copy page content, upload files, and create databases.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/avizmarlon/agent-skills/notion-api
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 avizmarlon/agent-skills --skill notion-api
Clone the repo
git clone --depth 1 https://github.com/avizmarlon/agent-skills

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 notion-api

README.md
[![agentmods](https://agentmods.dev/badge/skills/avizmarlon/agent-skills/notion-api/github.svg)](https://agentmods.dev/skills/avizmarlon/agent-skills/notion-api)
Your own site
<a href="https://agentmods.dev/skills/avizmarlon/agent-skills/notion-api"><img src="https://agentmods.dev/badge/skills/avizmarlon/agent-skills/notion-api/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 notion-api

Your own site · 80×15
<a href="https://agentmods.dev/skills/avizmarlon/agent-skills/notion-api"><img src="https://agentmods.dev/badge/skills/avizmarlon/agent-skills/notion-api.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 79 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,406 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found 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 $0.00079 $0.02406
Opus 5 $0.00039 $0.01203
Sonnet 5 $0.00016 $0.00481
Haiku 4.5 $0.00008 $0.00241

Measured 9d ago against content hash f4a5cb303d6f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

notion-api scanned grade A with 1 finding 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 9d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Avoid external dependencies — use Python stdlib only (e.g., `urllib`, `json`, `time`)
skills/notion-api/SKILL.md · 281 lines

How it starts

The opening of the file, as written. The whole thing — 281 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Notion REST API — Direct wrapper for batch operations

When working with Notion programmatically, use the REST API (not the MCP) for any batch-shaped work. MCP implementations (like notion-search) typically have hard limitations (25-result caps, no real pagination) that make batch operations tedious. The REST API handles 100+ rows in seconds with auto-pagination.


When to use REST API vs MCP

Operation Use
Read 1 page, update 1 page, search for a page MCP OK
Add a comment, create a single inline note MCP OK
Query an entire database (any size), with filters and pagination REST API
Batch update N pages (rename, retag, restructure) REST API
Audit/scan/inventory a database REST API
Replicate page body blocks REST API
Upload files/images programmatically REST API (MCP cannot)
Create a new database programmatically REST API
Move pages by re-creating under a new parent REST API
Any operation touching ≥3 rows REST API

If you find yourself calling MCP twice for the same data, switch to the REST API.


Python wrapper pattern

Create a thin self-contained wrapper around the Notion REST API. This wrapper should:

  • Handle authentication via environment variable (e.g., NOTION_API_KEY or NOTION_TOKEN)
  • Provide auto-pagination for list endpoints (use start_cursor / has_more loops)
  • Include retry logic with exponential backoff for rate limits (HTTP 429) and transient errors (5xx)
  • Throttle writes to respect Notion's published rate limit (~3 req/s)
  • Expose CRUD functions for pages, databases, blocks, and comments
  • Include property builders for clean schema construction (title, rich_text, select, date, etc.)
  • Avoid external dependencies — use Python stdlib only (e.g., urllib, json, time)

Canonical imports (your wrapper should export)

# Core CRUD
get_page, create_page, update_page, archive_page
get_database, create_database, update_database

# Querying (query_db_all should auto-paginate)
query_database, query_db_all

# Blocks
get_block, list_block_children, list_block_children_all
append_block_children, update_block, delete_block

# Search and metadata
search, search_all, list_users_all, get_user, whoami
create_comment, list_comments_all

# File uploads (for image/attachment re-hosting)
file_upload_create, file_upload_send, file_upload_complete

# Property builders (clean payloads)
title_prop, rich_text_prop, select_prop, multi_select_prop
status_prop, number_prop, checkbox_prop, date_prop, url_prop
relation_prop, people_prop, files_prop

# Block builders
paragraph_block, heading_block, bulleted_list_item, numbered_list_item
to_do_block, code_block, divider_block, callout_block, quote_block

# Text helpers
title_text, rich_text_text

# Custom exceptions
NotionAPIError

Read the full file on GitHub · 281 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. 9d ago First seen · 281 lines · 79 tokens per session scan A f4a5cb303d6f

Subscribe to this mod's changes

notion-api is a skill published in the GitHub repository avizmarlon/agent-skills (2 stars, last pushed 2mo ago), licensed MIT. It adds 79 tokens to every session and 2,406 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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