Open-source B2B and marketplace ecommerce; new stores include an MCP server for AI agents.
Official Source Evidence
Overview
Description from the maker (original English)
Accountless public-source, SEC Form D and OFAC tools with x402 USDC payment on Base.
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: Online shops & payments
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.
- You fill in yourself:
Accept
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 …”.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Run this in your terminal
claude mcp add --transport http official-source-evidence https://evidence.regulavita.com/mcp/ --header 'Accept: your-value'Fill in the empty values before running it.
Or copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"official-source-evidence": {
"url": "https://evidence.regulavita.com/mcp/",
"headers": {
"Accept": "your-value"
}
}
}
}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": {
"official-source-evidence": {
"type": "http",
"url": "https://evidence.regulavita.com/mcp/",
"headers": {
"Accept": "your-value"
}
}
}
}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.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Your choice stays on this device in a cookie; no account needed.
Values you fill in
AcceptHTTP headerRequest JSON responses from the stateless Remote MCP server.
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 with the GitHub account Joshua-Stapleton, which owns the repo
- … 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 Online shops & paymentsi
- More stars than 0% of the other 1754 servers in this category
- Published to the registry more recently than 33% of the other 1754 servers in this category
- Basic checks equal to or better than 100% of the other 1754 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 Official Source Evidence 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: Spree Commerce: open-source B2B and marketplace ecommerce, Stripe MCP, MCP Cn Commerce
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
Stripe MCP
Stripe’s official server lets AI view and manage customers, products, payments and invoices. Connect to Stripe’s cloud and sign in with OAuth.
MCP Cn Commerce
8 read-only MCP platform entries; support is operation-specific; merchant live acceptance pending
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.
Isolated Compute, Agent Procurement, Evidence, Source Watch, and GTM Signals
One-call isolated Python execution, brokered machine-service procurement, long-running monitoring jobs, and pay-per-call official-source signals and evidence for autonomous agents. No account, API key, or sales call.
Live service: evidence.regulavita.com | OpenAPI | Agent manifest | Remote MCP | x402 compatibility | Coinbase Bazaar listing
The Source Watch demand hypothesis, attribution rules, and stop/scale gates are pre-registered in SOURCE_WATCH_EXPERIMENT.md. The first independent buyer's on-chain cohort, interpretation, and resulting actions are recorded in INDEPENDENT_BUYER_ANALYSIS.md.
Agent-Payable Products
| Endpoint | Result | Price |
|---|---|---|
POST /v1/compute/python-run | Run bounded Python 3.11 code in an ephemeral isolated sandbox; one payment covers create, execute, and terminate and returns output, supplier settlements, hashes, and a signed receipt | $0.03 USDC |
POST /v1/procure/company-profile | Procure bounded company retrieval and schema-constrained normalization from pinned x402 suppliers, with derived fields, source links, contradictions, supplier settlements, partial-failure state, hashes, and a signed receipt | $0.25 USDC |
POST /v1/web/source-snapshot | One-shot normalized extraction from a public HTTPS HTML, JSON, XML, or text source, with optional literal excerpts, a content hash, and a signed receipt | $0.03 USDC |
POST /v1/monitors/source-change | Monitor one public HTTPS text, HTML, JSON, or XML source every six hours for 30 days, with private polling and optional signed webhooks | $1.00 USDC |
POST /v1/gtm/form-d-funding-leads | New SEC Form D private-offering signals filtered by issuer state, industry keyword, and reported amount sold, with related people, official links, and a cursor | $0.05 USDC |
POST /v1/ofac/payment-preflight | Compact stop/no-exact-match decision for an EVM destination address against current official OFAC data | $0.01 USDC |
POST /v1/sec/filing-change-signal | New SEC 8-K, 10-Q, or 10-K filings for a ticker since a timestamp, with links and a next-check cursor | $0.01 USDC |
POST /v1/ofac/exact-identifier-evidence | Exact OFAC SDN or Consolidated lookup for a crypto address, OFAC UID, or exact name, with versioned source proof | $0.05 USDC |
POST /v1/sec/filing-trigger-delta | New SEC filings for a ticker and timestamp or CIK and accession, plus deterministic XBRL deltas and a signed receipt | $0.10 USDC |
All routes use x402 v2 on Base mainnet. An x402-compatible client receives a standard HTTP 402 challenge, pays USDC, retries automatically, and receives the JSON result. Browser clients can read the payment headers through CORS. During the v1-to-v2 transition, a v2 payload sent under the legacy X-Payment header is promoted to Payment-Signature. The production service has a hard $10.00 accepted-revenue cap per UTC day.
The procurement experiment tests a brokered action, not another raw-data wrapper. A free quote at POST /v1/procure/company-profile/quote exposes the fixed customer price, supplier plan, maximum supplier cost, and partial-result policy before payment. The hypothesis and stop/scale gates are pre-registered in PROCUREMENT_EXPERIMENT.md.
The isolated Python experiment compresses a three-payment sandbox lifecycle into one buyer call. A free quote exposes the fixed $0.03 customer price and maximum $0.015 supplier cost before payment. The bounded hypothesis and gates are in PYTHON_RUN_EXPERIMENT.md.
Source Watch is a long-running job rather than a lookup. It accepts only public HTTPS sources, does not follow redirects, caps each response at 1 MB, stores normalized text rather than raw pages, and expires automatically after 30 days. The paid response returns a bearer token for private status polling and, when requested, a separate HMAC secret for verifying change webhooks.
Monitoring tools may send an empty or {} unauthenticated POST to any paid route. The service treats that as the published example request and returns the normal HTTP 402 challenge without fetching upstream data or charging. The same substitution is preserved on the paid retry so a catalogue purchase can finish. Malformed or other schema-invalid requests are still rejected before payment.
Discover and Inspect
The stateless Remote MCP at https://evidence.regulavita.com/mcp/ exposes free status, quotes, and capability requests. get_example_payment creates a live x402 challenge from a known-valid published example without moving funds; this lets generic catalog agents reach the payment decision without inventing test inputs. Custom-input tools remain strict and return a machine-readable recovery path when validation fails.
Search the Coinbase Bazaar from an Agentic Wallet CLI:
npx awal@latest x402 bazaar search "OFAC exact identifier evidence"
npx awal@latest x402 bazaar search "SEC Form D funding sales trigger" npx awal@latest x402 bazaar search "public source snapshot normalized text signed receipt"
Inspect the free contracts before paying:
curl https://evidence.regulavita.com/v1/ofac/sample
curl https://evidence.regulavita.com/v1/compute/python-run/sample curl https://evidence.regulavita.com/v1/procure/company-profile/sample curl https://evidence.regulavita.com/v1/sec/sample curl https://evidence.regulavita.com/v1/gtm/form-d-funding-leads/sample curl https://evidence.regulavita.com/v1/web/source-snapshot/sample curl https://evidence.regulavita.com/v1/monitors/source-change/sample curl https://evidence.regulavita.com/llms.txt
An unpaid valid request demonstrates the machine-readable payment challenge:
curl -i -X POST \
https://evidence.regulavita.com/v1/gtm/form-d-funding-leads \ -H 'Content-Type: application/json' \ -d '{"since":"2026-08-03T00:00:00Z","states":["CA","NY"],"minimum_amount_sold_usd":"1000000","limit":10}'
Decision And Evidence Layers
The two $0.01 routes return compact, unsigned decisions for frequent agent workflows. The Form D GTM feed and premium evidence routes add:
- Official publisher and source-version metadata.
- Canonical request, source-bundle, component, and result SHA-256 hashes.
- An Ed25519-signed evidence receipt.
- Explicit data freshness and parser version.
- Paid-result replay bound to the original payment proof.
The OFAC route is exact-match evidence only. It is not fuzzy screening, ownership/control analysis, sanctions clearance, transaction authorization, or legal advice. The SEC route returns factual filing records and deterministic deltas, never materiality opinions, valuation, investment advice, or execution instructions.
The Form D route is a factual sales trigger. Form D is an issuer-filed notice of an exempt offering; its total offering amount is not proof of capital raised. The API exposes the separately reported amount sold and preserves official SEC links so consuming agents can state that distinction accurately.
Operator Documentation
The implementation, source controls, payment flow, deployment configuration, operating limits, and experiment gates are documented in autonomous_data_api/README.md.
Validate a checkout with:
PYTHONPATH=. uv run --with-requirements autonomous_data_api/requirements.txt \
pytest autonomous_data_api/tests -q uvx ruff check autonomous_data_api uvx ruff format --check autonomous_data_api docker build -t official-source-evidence-api:local \ -f autonomous_data_api/Dockerfile .
This remains a capped demand experiment. Owner-funded calls prove technical settlement and discovery, not independent demand, revenue quality, or a validated business.