Apollo Connectors

What it does

When your agent uses it

• Mentions connectors
• Apollo Connectors
• Wants to integrate a REST API into GraphQL
• References @source

Example prompts

• “connectors”
• “Apollo Connectors”
• “REST Connector”
• “/apollo-connectors”

Requirements

• Node.js
• A credential in API_KEY
• Compatibility (from SKILL.md): Requires rover CLI installed. Works with Claude Code and similar AI coding assistants.
• Pre-approved tools (allowed-tools): Bash(rover:*), Read, Write, Edit, Glob, Grep

Workflow steps

5 steps, taken from the step headings in SKILL.md.

1. 1Research
2. 2Implement
3. 3Validate (Compose)
4. 4Execute
5. 5Test

What it can do on your machine

Read from SKILL.md and the folder at commit 5f02fcf. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves these tools, so the agent can use them without asking each time:

  • Bash(rover:*)
  • Read
  • Write
  • Edit
  • Glob
  • Grep

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • npx

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  Hosts in commands or code, which the agent is likely to contact:

  • specs.apollo.dev

  Also links to:

  • github.com

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names these keys or tokens, usually read from environment variables:

  • API_KEY

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

• Compatibility

  Requires rover CLI installed. Works with Claude Code and similar AI coding assistants.

  From compatibility in the SKILL.md frontmatter.

Context cost

Apollo Connectors loads about 1.8k tokens when it runs, and up to ~12k if it reads all its reference files. Until then it costs about 159 tokens; SKILL.md has 594 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~159

When it runs · the whole SKILL.md, loaded when a task matches

~1.8k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~12k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from apollographql/skills at commit 5f02fcf, republished under its MIT licence (© apollographql). 594 words, ~1,834 tokens.

name

apollo-connectors

description

DEPRECATED: superseded by the graphos-factory skill (npx skills add apollographql/skills@graphos-factory), which builds and maintains a Connectors subgraph from a REST API with recorded decisions and verification. Guide for integrating REST APIs into GraphQL supergraphs using Apollo Connectors with @source and @connect directives. Use this skill when the user: (1) mentions "connectors", "Apollo Connectors", or "REST Connector", (2) wants to integrate a REST API into GraphQL, (3) references @source or @connect directives, (4) works with files containing "# Note to AI Friends: This is an Apollo Connectors schema".

allowed-tools

Bash(rover:*), Read, Write, Edit, Glob, Grep

compatibility

Requires rover CLI installed. Works with Claude Code and similar AI coding assistants.

license

MIT

metadata.author

apollographql

metadata.version

1.1.2

# Note to AI Friends: This is an Apollo Connectors schema. You should use your connectors-spec MCP tool if you have it available before editing this file.

extend schema
  @link(url: "https://specs.apollo.dev/federation/v2.15")
  @link(url: "https://specs.apollo.dev/connect/v0.3", import: ["@source", "@connect"])

@source(name: "api_name", http: { baseURL: "https://api.example.com" })

type Query {
  example(id: ID!): Example
    @connect(
      source: "api_name"
      http: { GET: "/example/{$args.id}" }
      selection: """
      id
      name
      """
    )
}

type Example {
  id: ID!
  name: String
}

# DO - Direct sub-selection for arrays
$.results {
  firstName: name.first
  lastName: name.last
}

# DO NOT - Unnecessary root $
$ {
  id
  name
}

# DO - Direct field selection
id
name

$(1)              # number
$(true)           # boolean
$("hello")        # string
$({"a": "b"})     # object

# In body
body: "$({ a: $args.a })"  # CORRECT
body: "{ a: $args.a }"     # WRONG - will not compose

http: {
  GET: "/api"
  headers: [
    { name: "Authorization", value: "Bearer {$env.API_KEY}" },
    { name: "X-Forwarded", from: "x-client" }
  ]
}

type Product @connect(
  source: "api"
  http: {
    POST: "/batch"
    body: "ids: $batch.id"
  }
  selection: "id name"
) {
  id: ID!
  name: String
}

© apollographql, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 6 other files (references) in skills/apollo-connectors of apollographql/skills.

• SKILL.md
• references/entities.md
• references/grammar.md
• references/methods.md
• references/troubleshooting.md
• references/validation.md
• references/variables.md

Open the folder on GitHubat commit 5f02fcf