wp-rest-api

A guide for building and debugging WordPress REST API routes, which let software exchange data with WordPress over web requests. It covers validation, permissions, authentication, and response data.

In plain words
What is it for?
Use it to register routes and controllers, validate arguments, handle permissions, shape responses, expose custom fields or metadata, and make custom post types or taxonomies available through the API.
Why use it?
It helps make API endpoints accept safe input, restrict access correctly, and return predictable results.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/wordpress/agent-skills/wp-rest-api
Any agent
npx skills add WordPress/agent-skills --skill wp-rest-api
Clone the repo
git clone --depth 1 https://github.com/WordPress/agent-skills

Made for: Claude Code, Codex.

Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,183 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00061 $0.01183
Opus 5 $0.00030 $0.00592
Sonnet 5 $0.00012 $0.00237
Haiku 4.5 $0.00006 $0.00118

Measured 3d ago against content hash 46c17297230f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

wp-rest-api 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 3d 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.

skills/wp-rest-api/SKILL.md · 115 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 3d ago First seen · 115 lines · 61 tokens per session scan A 46c17297230f

Subscribe to this mod's changes

wp-rest-api is a skill published in the GitHub repository WordPress/agent-skills (2,091 stars, last pushed 10d ago), with no licence file. It adds 61 tokens to every session and 1,183 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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