Spec Driven Development
by formulahendry
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer★ 440MITUpdated 14 months ago
Install
AgentFilings
Overview
Description from the maker (original English)
SEC filings, XBRL earnings, Form 4 insiders for ~2,800 US SEC filers. x402 pay-per-call, no signup.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiNot measured yet★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs in the cloud
- Transport: Streamable HTTP
- Category: Other
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on the maker’s server: what you ask it goes through their server.
- The registry lists no key to fill in.
You need
- Runs in the cloudNothing to install; it connects over the internet
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Works in Claude on the web, desktop and mobile:
- Open Settings → Connectors
- Press Add custom connector
- Paste the address below and press Add
- If it asks you to sign in, sign in with the maker
https://api.agentfilings.com/mcpRun this in your terminal
claude mcp add --transport http agentfilings https://api.agentfilings.com/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"agentfilings": {
"url": "https://api.agentfilings.com/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"agentfilings": {
"type": "http",
"url": "https://api.agentfilings.com/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
- Open ChatGPT on the web → Settings → Connectors (Apps)
- Press Create or Add (some plans need Developer mode under Advanced first)
- Paste the address below, give it a name and save
- If it asks you to sign in, sign in with the maker
https://api.agentfilings.com/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
We have not read this server’s tool list yet; we check endpoints in rotation.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified against the domain agentfilings.com (the registry checks domain ownership)
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- … Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
- … Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Compared with others in Otheri
- More stars than 0% of the other 32684 servers in this category
- Published to the registry more recently than 34% of the other 32684 servers in this category
- Basic checks equal to or better than 100% of the other 32684 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is AgentFilings safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
Is it still maintained?
The GitHub repo last changed –, and the latest version (1.1.0) reached the registry 2 months ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
What can I use instead?
In the same category: Spec Driven Development, Remote Desktop Commander, Master CSS
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Remote Desktop Commander
by desktop-commander
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud★ 211Updated 2 days ago
Install
Master CSS
by master-co
Inspect Master CSS classes, generated CSS, and project stylesheets from your AI client.
Runs on your computerUpdated today
Install
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
AgentFilings
Structured US SEC/EDGAR filing data for AI agents — filings index, XBRL-derived earnings, and Form 4 insider transactions as clean JSON, over both HTTP and MCP.
Paid per call with x402 (USDC on Base mainnet, no account required). A flat Stripe subscription rail — API-key issuance, subscription gate, checkout and webhook — is implemented in apps/api/src/billing/ but not switched on in the live deployment.
Live at api.agentfilings.com · OpenAPI · llms.txt · MCP at https://api.agentfilings.com/mcp, listed in the official MCP registry as com.agentfilings/mcp, with an MCP Server Card, an AI Catalog and an x402 manifest for discovery.
# Free. Tells you what data exists before you spend anything.curl "https://api.agentfilings.com/probe?ticker=AAPL"
What's actually interesting in here
Most of the work went into three things that are easy to get wrong with SEC data, and one that's easy to get wrong with agent payments.
Restatements. companyfacts returns the same period once per filing that reported it. When a company restates a figure, the superseded value is still in the API. Each period here reconciles to its most recently filed value rather than the first one encountered.
Fiscal period provenance. The fy/fp fields on a fact describe the *filing*, not the period. A 10-Q showing last year's quarter as a comparative stamps that older period with the newer filing's fiscal year. Each period here keeps the labels from the filing that *originally* reported it. benchmark/ is a runnable measurement of how often those disagree.
Entity identity. SEC's ticker map can point at a post-reorganization shell that holds the ticker and files no financial data. Resolution is CIK-authoritative, with a guard that refuses to record coverage for an entity reporting no us-gaap facts.
Payment replay. Every x402 payment proof is bound to the specific resource it paid for, so a proof issued for one endpoint or MCP tool cannot be replayed against another. Settlement is idempotent, and EIP-712 domains are read per-network from the USDC contracts rather than hardcoded.
Honest coverage
/probe is free, and it will tell you not to pay:
{"ticker_coverage": { "covered": true, "endpoints_with_data": ["/filings/latest", "/earnings/summary"], "empty_endpoints": ["/insiders"], "hint": "Partial coverage. /filings/latest and /earnings/summary will return data. /insiders would return an empty result, so do not pay for those." } }
A company can be covered for filings and empty for earnings — foreign issuers filing under IFRS, pre-revenue companies. Charging for a call that returns nothing is the fastest way to lose an automated buyer permanently, so the service says so before taking money.
Layout
apps/api/ TypeScript / Hono — HTTP API + MCP serversrc/payments/ x402 v2: routes config, replay guard, idempotency, discovery src/billing/ Stripe rail: key issuance, subscription gate, checkout, webhook src/mcp/ MCP over streamable HTTP, paid tools src/repo/ Corpus access (Postgres in prod, local JSON in tests) apps/ingest/ Python 3.12 — SEC ingestion, XBRL + Form 4 parsers packages/shared/ Pricing table, x402 constants, response types infra/migrations/ SQL schema benchmark/ Standalone, runnable SEC XBRL correctness measurement tests/ Cross-cutting, including the payment-security spec
packages/shared/src/pricing.ts is the single source of truth for the API surface. The payment middleware, /probe, the MCP tool list and the OpenAPI document all derive from it.
Development
pnpm installpnpm test # vitest — api + shared pnpm typecheck pnpm lint pnpm dev # http://localhost:8080
curl localhost:8080/health curl "localhost:8080/probe?ticker=AAPL"
Payments are gated off by default, so paid routes serve openly in development. Ingestion requires SEC_CONTACT_EMAIL — the SEC requires a contact in the User-Agent and blocks requests without one. See .env.example and infra/DEPLOY.md.
Principles
- The free surface is honest.
/healthand/probeare always free, and/probenever overstates coverage. - Never charge for what cannot be served. An unimplemented endpoint is never payment-gated — the middleware would otherwise take payment and then 404.
- Public domain only. SEC EDGAR. No licensed datasets, no scraped transcripts.
- Merchant only. The service never holds, routes, or forwards third-party funds.
Licence
MIT. Data is SEC EDGAR, public domain.