A consent-verification service for lead-generation forms. It records evidence that a person agreed to be contacted and lets a buyer check that evidence; TCPA is a US law governing certain marketing calls and messages.

Adding consent capture to forms, checking lead consent, retaining consent sessions, and retrieving proof for disputes.

It helps prove whether a lead gave the required consent before someone contacts them, including when that consent is disputed.

verfi — Skill for Claude Code and Codex by Verfi-io/verfi-mcp-server

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 Verfi-io/verfi-mcp-server --skill verfi

Clone the repo

git clone --depth 1 https://github.com/Verfi-io/verfi-mcp-server

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/verfi-io/verfi-mcp-server/verfi/github.svg)](https://agentmods.dev/skills/verfi-io/verfi-mcp-server/verfi)

Your own site

<a href="https://agentmods.dev/skills/verfi-io/verfi-mcp-server/verfi"><img src="https://agentmods.dev/badge/skills/verfi-io/verfi-mcp-server/verfi/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/verfi-io/verfi-mcp-server/verfi"><img src="https://agentmods.dev/badge/skills/verfi-io/verfi-mcp-server/verfi.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,636 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00068	$0.01636
Opus 5.5	$0.00027	$0.00654
Sonnet 5.5	$0.00014	$0.00327
Haiku 4.5	$0.00007	$0.00164

Measured 12d ago against content hash 77d1a2817c22, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

verfi scanned grade A with 1 finding 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 12d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -H "Authorization: Bearer sk_YOUR_SECRET_KEY" \

plugin/skills/verfi/SKILL.md · 152 lines

How it starts

The opening of the file, as written. The whole thing — 152 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Verfi captures verifiable proof of consumer consent. Publishers add a script tag to capture sessions; buyers verify consent via API before contacting leads.

When to Use This Skill

Adding consent capture to a web form
Checking if a lead has valid TCPA consent
Claiming sessions for long-term retention
Pulling machine-readable proof for disputes
Integrating Verfi into an existing lead gen pipeline

Lead-router integration

For claim gates, PII binding, status mapping and retries, read references/api-reference.md before writing the integration. It is the web-session buyer contract. Entry point: https://verfi.io/docs/agent-plugin. Direct REST does not require plugin installation. Native lead-form evidence is a different contract.

Use buyer-selected thresholds and match policy. Include required PII matching in the claim request; accept only exact successful claim response fields. A proof summary or a claim alone is not a legal-compliance guarantee. Inspect MCP tools/list: older installed releases lack the gates and claim-status tool. Use direct REST when needed.

Quick Start

1. Capture Consent (Publisher)

Add the SDK to any page with a form:

<script async src="https://sdk.verfi.io/v2/index.js?field=verfiProof&apiKey=YOUR_PUBLIC_KEY&verticals=auto_insurance"></script>

The SDK auto-detects forms, records interactions (mouse, clicks, keystrokes, scroll), and generates a Verfi ID (VF-xxxxxxxx) on form submission.

2. Verify Consent (Buyer)

curl -H "Authorization: Bearer sk_YOUR_SECRET_KEY" \
  https://api.verfi.io/tenant/v1/sessions/VF-a1b2c3d4/proof

Returns consent status, interaction metrics, form data, device info, and tamper verification. All PII is SHA-256 hashed.

3. Claim Session

curl -X POST -H "Authorization: Bearer sk_YOUR_SECRET_KEY" \
  -H "Idempotency-Key: REPLACE_WITH_PERSISTED_UUID" \
  -H "Content-Type: application/json" -d '{"requireRecording":true,"requireVerticals":["auto_insurance"]}' \
  https://api.verfi.io/tenant/v1/sessions/VF-a1b2c3d4/claim

Read the full file on GitHub · 152 lines

Files

What ships with it

3 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.

12d ago Changed 77d1a2817c22
22d ago Changed · +9 lines f02e2e83497f
2mo ago First seen · 143 lines · 68 tokens per session scan A 9c3c7d9180c7

Subscribe to this mod's changes

verfi is a skill published in the GitHub repository Verfi-io/verfi-mcp-server (0 stars, last pushed 13d ago), licensed MIT. It adds 68 tokens to every session and 1,636 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-04.

Legal and compliance

verfi next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
verfiVerfi-io/verfi-mcp-server	Skill	0	13d ago	MIT	A	68	Claude Code, Codex
fto-triageanthropics/claude-for-legal	Skill	9.9k	2d ago	Apache-2.0	A	81	Claude Code
legal-holdanthropics/claude-for-legal	Skill	9.9k	2d ago	Apache-2.0	A	68	Claude Code
specification-writingwanshuiyin/Auto-claude-code-research-in-sleep	Skill	19k	yesterday	MIT	A	49	Claude Code
regulatory-research-fallbackHKUDS/OpenSpace	Skill	7.9k	2d ago	MIT	A	20	Claude Code, Codex
terms-of-servicegenspark-ai/genoffice	Skill	12k	yesterday	Apache-2.0	A	32	Claude Code, Codex
x-scorecardx-cmd/x-cmd	Skill	4.7k	9d ago	Apache-2.0	A	57	Claude Code, Codex

verfi