nexflow-smf-list-facilitators-v1

nexflow-smf-list-facilitators-v1 is a skill for Claude Code, Codex from NexFlow-SMF/nexflow-smf-public. It costs 45 tokens per session (465 once invoked), scanned A, original, MIT.

A skill that lists active payment facilitators for NexFlow’s SMF, a service for routing x402 payments between networks and digital assets.

In plain words
What is it for?
Finding facilitators that support a chosen blockchain network or asset, such as USDC on Base.
Why use it?
It shows which payment routes are currently available before an agent requests a quote or sends a payment.

Skill for Claude CodeCodex

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

Good fit Finding facilitators that support a chosen blockchain network or asset, such as USDC on Base.

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Install with agentmods
npx agentmods add skills/nexflow-smf/nexflow-smf-public/smf-list-facilitators
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 NexFlow-SMF/nexflow-smf-public --skill smf-list-facilitators
Clone the repo
git clone --depth 1 https://github.com/NexFlow-SMF/nexflow-smf-public

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 nexflow-smf-list-facilitators-v1

README.md
[![agentmods](https://agentmods.dev/badge/skills/nexflow-smf/nexflow-smf-public/smf-list-facilitators/github.svg)](https://agentmods.dev/skills/nexflow-smf/nexflow-smf-public/smf-list-facilitators)
Your own site
<a href="https://agentmods.dev/skills/nexflow-smf/nexflow-smf-public/smf-list-facilitators"><img src="https://agentmods.dev/badge/skills/nexflow-smf/nexflow-smf-public/smf-list-facilitators/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 nexflow-smf-list-facilitators-v1

Your own site · 80×15
<a href="https://agentmods.dev/skills/nexflow-smf/nexflow-smf-public/smf-list-facilitators"><img src="https://agentmods.dev/badge/skills/nexflow-smf/nexflow-smf-public/smf-list-facilitators.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 465 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00045 $0.00465
Opus 5 $0.00023 $0.00233
Sonnet 5 $0.00009 $0.00093
Haiku 4.5 $0.00005 $0.00047

Measured 11d ago against content hash 7845cd6638f2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

nexflow-smf-list-facilitators-v1 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 11d 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.

nexflow-smf-skills/smf-list-facilitators/SKILL.md · 67 lines

What it actually says

When to use this skill

Use this skill when:

  • You need to know which facilitators are available before calling route-matrix or route-quote.
  • You are building discovery flows (e.g. "show me who can do USDC on Base").
  • You are monitoring availability or building dashboards of active facilitators.

Do not use for comparing fees or latency; use route-matrix for that.

HTTP API

  • Method: GET
  • URL: https://api.nexflow.xyz/api/smf/v1/list-facilitators

Query parameters (all optional):

  • network (string): CAIP-2 network ID, e.g. "eip155:8453". Omit for all networks.
  • asset (string): Token symbol, e.g. "USDC". Omit for all assets.

Example:

GET /api/smf/v1/list-facilitators?network=eip155:8453&asset=USDC

Response shape

On success (2xx):

{
  "facilitators": [
    {
      "id": "base-main-smf",
      "name": "Base Main SMF",
      "network": "eip155:8453",
      "assets": ["USDC"],
      "status": "active"
    }
  ]
}

Use the id field when calling route-quote or when interpreting route-matrix results.

Pricing

This endpoint is typically free or low-cost. If the service returns 402, read the price and decide whether to pay.

Test usage

  • Add header: X-Nexflow-Test: 1 for test mode.
  • Expect a stable set of test facilitators with deterministic IDs.

Usage examples for agents

  • "List all facilitators that support USDC on Base."
  • "Discover which facilitators are active for x402 payments."
  • "Get facilitator IDs to pass into the route-quote API."
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. 11d ago First seen · 67 lines · 45 tokens per session scan A 7845cd6638f2

Subscribe to this mod's changes

nexflow-smf-list-facilitators-v1 is a skill published in the GitHub repository NexFlow-SMF/nexflow-smf-public (0 stars, last pushed 5mo ago), licensed MIT. It adds 45 tokens to every session and 465 once invoked, about $0.0002 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 2026-08-31.