Best API agent skills
Designing, calling and testing HTTP APIs, including client generation, collections and request tooling. The 13 highest-ranked of the 13 agent skills tagged API in the Onei AI catalogue.
Everything tagged API: apps, skills and MCP servers Best API AI tools (apps), ranked
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by Venice AI
Venice's official skill for its two text-to-image endpoints — the native API with negative prompts, CFG and seeds, and the OpenAI-compatible drop-in.
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by Hugging Face
Read-only recipes for the Hugging Face Dataset Viewer API — resolve splits, paginate rows, run text search and row filters, and pull parquet URLs and column statistics.
Also: Research · Copied 1 time
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by Pydantic
Pydantic's official skill for modelling untrusted data in Python — constraints, model hierarchies, validators and serialisation, plus when not to reach for a BaseModel.
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by Resend
Resend's official skill for the whole email lifecycle — transactional sends, inbound webhooks, templates, broadcasts, domains and delivery events.
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by Courier
Courier's official skill for building and debugging multi-channel notifications — email, SMS, push, in-app inbox, Slack, Teams and WhatsApp — from one send call.
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by Apollo GraphQL
Apollo's official skill for writing Federation 2 subgraph schemas — entities and @key, @shareable, @external, @requires, @provides, @override, and reading composition errors.
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by Replicate
Replicate's official skill for running models via its API — predictions, polling, Prefer: wait, webhooks with signature validation, streaming and file handling.
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by Coinbase
Coinbase's official skill for driving a crypto wallet from an agent: balances and transfers on Base, Polygon and Solana, plus paying for and monetising x402 APIs.
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by Brave
Brave's official skill for the Brave Search API — ranked web results with snippets and thumbnails, freshness and SafeSearch filters, search operators, pagination, and Goggles for custom ranking.
Also: Research
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by Typefully
Typefully's official skill for drafting, scheduling and publishing to X, LinkedIn, Threads, Bluesky, Mastodon and Substack Notes from your agent or terminal.
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by SerpApi
SerpApi's official skill for structured search: which of 130+ engines to call for citations, local businesses, flights, hotels, shopping or jobs, which response key holds the answer, and the gotchas that silently return the wrong field.
Also: Research
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by Anthropic
Authoritative reference for the Claude API and Anthropic SDKs — model IDs, pricing, parameters, streaming, tool use, MCP, agents, prompt caching, and token counting.
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by Apollo GraphQL
Sets up Apollo MCP Server so an AI agent can call a GraphQL API as MCP tools — defining tools from named operations, or exposing introspect/search/validate/execute for open-ended schemas.
How this list is ranked
Ranked by 20 points for an editor's pick, plus 4 points per copy of the install command or SKILL.md up to 10, plus a point per 5 page views up to 100; ties go to the most recently updated. Discontinued skills are never ranked.