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.
npx agentmods add skills/stripe/link-cli/create-payment-credentialnpx skills add stripe/link-cli --skill create-payment-credentialgit clone --depth 1 https://github.com/stripe/link-cliWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00095 | $0.05943 |
| Opus 5 | $0.00048 | $0.02972 |
| Sonnet 5 | $0.00019 | $0.01189 |
| Haiku 4.5 | $0.00010 | $0.00594 |
Grade A, and why
create-payment-credential 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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 415 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Create Payment Credential
Use Link to get secure, one-time-use payment credentials from a Link wallet to complete purchases.
The CLI can produce one of two credential types:
- A virtual card (PAN) for use with a standard web checkout form. The issued card works anywhere.
- A Shared Payment Token (SPT) when the seller is in the Stripe Network and accepts payments programmatically (for example with Machine Payment Protocols).
It can also create a Link Pay Token (LPT)-bound SpendRequest for a supported Stripe checkout surface. LPT is an execution mode for the card flow, not a third credential type.
Installing
Install with npm install -g @stripe/link-cli. Or run directly with npx @stripe/link-cli.
Running commands
Link CLI can run as an MCP server or as a standalone CLI.
MCP: Add the following to your MCP client config (.mcp.json, etc.)
{
"mcpServers": {
"link": {
"command": "npx",
"args": ["@stripe/link-cli", "--mcp"]
}
}
}
Run the MCP server directly with npx @stripe/link-cli@latest --mcp.
Call tools/list to see all available MCP tools.
Common commands/options
- List all commands:
link-cli --llms - List all commands with parameters:
link-cli --llms-full - Get a command's exact schema with
--schema. For example,link-cli spend-request create --schema - Multi-step commands return a
_nextaction. For example, authenticating or creating a spend request returns a_next.commandthat must be run to complete the flow. - By default all output is in
toonformat. Pass--format [json|md|yaml]to change output format. - Some commands return a verification or approval URL. These must be presented to the user clearly for their action.
--auth <path>flag to store auth credentials in a specific file instead of the default location.auth loginwrites to this file; all other commands read from it. Example:link-cli auth login --auth credentials.json
Recommended: Run link-cli --llms to understand all the available commands. The --llms-full output is the canonical reference for parameter names, types, and valid values. Pass --schema before invoking a command to understand its parameters and constraints.
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.
- 2d ago First seen · 415 lines · 95 tokens per session scan A 18a3f5baf887
create-payment-credential is a skill published in the GitHub repository stripe/link-cli (745 stars, last pushed 4d ago), licensed MIT. It adds 95 tokens to every session and 5,943 once invoked, about $0.0005 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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