Pay-per-call agent APIs & MCP servers over x402
Pay-per-call APIs for agent developers: evidence before the agent spends.
URL-to-Markdown API — $0.001 per accepted read See agent products
Pay per accepted call — a challenge is a quote, not a charge. Free tools need no wallet.
Verify the provider, then pay per accepted call.
For agent developers and operators: real AI evidence, x402 payments and signed research verdicts. For buyers: practical field guides you can use today.
The agent calls an endpoint. The reply quotes the exact price first — no account, no API key.
The agent pays that amount in USDC on Base from its own wallet.
The accepted call returns with verifiable payment evidence. See the receipts ledger.
service URL to Markdown API — one page read (example.com) status SETTLED — accepted call, Markdown delivered amount 0.001 USDC · network Base (eip155:8453) payer 0x2DfF…b56D — SML's proof wallet (SELF-PROOF) payTo 0x5BBd…28b2 tx 0xb6f6…1895 — re-check it on Basescan receipt a2e27d45…670a · Oct 31, 2026
An outside wallet's receipt carries the same fields. The day's external settlements — 9 payments from 5 wallets — are counted in the receipts section below.
One-time purchase. Instant download. No subscription. No course funnel.
Run by a Service-Disabled Veteran-Owned Small Business.
Not trading signals and not financial advice. SML sells tools and evidence, not picks.
Choose an API for your agent’s next job
SCRIPTMASTERLABS (Script Master Labs LLC) publishes focused tools with free contracts to inspect before spending. Start with the job and check current availability.
Also new: Agent Proof Network — agent-to-agent proof from $0.006 USDC.
Web extraction and source research
- URL to Markdown API — read one known public page.
- Web scraping API for AI agents — compare Markdown and structured extraction.
- Web research API — find sources when the URL is unknown.
Payment quote verification
Use the free x402 Quote Inspector to decode payment terms and check payee or budget mismatches locally before authorizing any funds.
The settlement-verified x402 Directory — every x402 service the ecosystem's facilitators report, with live prices, pay-to wallets and freshness on every row; rows that stop settling are marked stale in the open.
Provider verification and MCP selection
- TrustBeforePay provider verification — inspect provider evidence.
- Compare agent API use cases · Choose an MCP server · About SCRIPTMASTERLABS
Read the free contract first. You get evidence before you pay — a payment challenge is not a charge or proof of delivery; an accepted call is, and its response carries verifiable payment evidence.
Compare: Tavily alternative · Firecrawl alternative · Jina Reader alternative
For AI Agents
Agent APIs and MCP tools with verifiable x402 payment evidence live on the main site. See agent products.
Why buyers choose ScriptMasterLabs
- Fixed-length practical checklists and workflows, not theory.
- Primary-source boundaries stated. No ranking or profit guarantees.
- Service-Disabled Veteran-Owned. SAM.gov registered — UEI G24VZA4RLMK3, CAGE 21U51.
Receipts first. Customer quotes when buyers send them.
Oct 31, 2026: 9 payments from 5 external wallets for $0.001 URL-to-Markdown reads, settled on Base to SML's own payTo. Receipts ledger · Buyer evidence
Nov 2, 2026: SML's 402Proof facilitator settled native USDC on Solana mainnet end-to-end (SELF-PROOF canary), including a settlement carrying its 0.005 USDC flat facilitator fee in the same transaction. Solana evidence
First external settlement pending — proof settlements shown on the receipts ledger, labeled as our own.
“Fail-closed on a stale feed is the right default for a priced endpoint.” — Michael Kantor, Hashgraph Online builder, on the Cascade MCP launch post, Oct 8, 2026. A peer’s words, not a customer’s — buyer words are the Google reviews below.
“ScriptMasterLabs sent first-party measurements, not marketing. When I flagged four schema issues, their agent fixed all of them in one pass and the dataset was live the next day.” — Jongwon Choi, founder of WITAN, Oct 31, 2026. A collaborator’s words, not a customer’s — buyer words are the Google reviews below.
He republished both of my studies in full with credit, kept my stated limits word for word, and when I told him the title misread one of my numbers he fixed it the same day. — Michael Putnam, PresenceScanner.ai, Nov 1, 2026. A collaborator’s words, not a customer’s — buyer words are the Google reviews below.
5.0 from 6 Google reviews · Write a review on Google
“Great experience with Script Master Labs! Professional, knowledgeable, and delivers quality work. Highly recommend!”
Taydoe.Atlanta · ★★★★★ · Google review
“Thank you for assisting me. The project came out great.”
Twyla Gray · ★★★★★ · Google review
“Very innovative and I look forward to the future of this company.”
Darrius Session · ★★★★★ · Google review
“Exciting Innovation in AI! Script Master Labs has an exciting vision for making AI and automation more accessible to businesses and entrepreneurs. I’m impressed by the focus on practical solutions that help people work smarter, streamline processes, and embrace emerging technology. It’s exciting to see the creativity and innovation behind this company, and I look forward to watching it grow!”
Teresa Upshaw · ★★★★★ · Google review
“⭐⭐⭐⭐⭐ 5 Stars — Highly Recommend Script Master Labs! If you’re looking for a company to help you take your data analysis, stock analytics, and trading to the next level, look no further than Script Master Labs! Their expertise, innovative solutions, and commitment to helping clients make smarter, data-driven decisions truly set them apart. Whether you’re looking to improve your trading strategies, better understand market trends, and maximize the power of your data, Script Master Labs is a fantastic resource. Their professionalism, knowledge, and attention to detail make all the difference. I highly recommend Script Master Labs to anyone serious about elevating their analytical and trading capabilities! ⭐⭐⭐⭐⭐”
Katrina Walton · ★★★★★ · Google review
Send a one-line quote, your first name, your role, and what the call was used for — the email opens with the template filled in.
Quotes are published only with the sender’s permission, labeled with first name and role, exactly as sent.
Counted from the receipts ledger, Oct 31, 2026. The wallets are anonymous addresses, so they are shown as counts, not avatars or names.
Start with the free Website Evidence Checklist
Inspect crawl signals, schema, and technical observations before you spend on ads or content.
Download Free Checklist (PDF)Popular Instant-Download Guides
Business and local AI guides
- Local AI Business 3-Pack — LSA to Performance Max + Business Profile + Local AI Visibility. Save on the bundle.
- Generative Engine Optimization Checklist — $19 direct PDF (Stripe checkout; other stores may have separate promotions).
Trading and options guides
- Options Intelligence 3-Pack — Options Flow + 0DTE + Gamma Exposure.
Agent payments and x402 guides
- x402 Protocol Guide.
Browse the guides (Google Play Books) · Browse All Guides on Gumroad
Who runs ScriptMasterLabs
Timothy Walton — founder, Script Master Labs LLC, Kinston, North Carolina. Service-Disabled Veteran-Owned Small Business, SAM.gov registered (UEI G24VZA4RLMK3, CAGE 21U51). He builds the pay-per-call APIs, MCP servers and field guides sold here, and publishes the receipts — including the failures — on this site. Founder on LinkedIn · About ScriptMasterLabs
Why he built it: AI agents are starting to spend money on their own, and most of what they buy comes with no evidence worth trusting and no receipt that settles the question. ScriptMasterLabs is built to be the other side of that trade — verify the provider first, charge per accepted call, and publish the settlement where anyone can re-check it. The standard comes from his service: if it isn’t evidenced, it didn’t happen.
Frequently Asked Questions
What does ScriptMasterLabs build?
ScriptMasterLabs builds pay-per-call APIs and MCP servers that AI agents use to buy data, checks and verdicts — including URL-to-Markdown conversion, provider-trust verification and the Verdict Protocol — plus practical field guides that anyone can buy once and download instantly. It is run by Script Master Labs LLC in Kinston, North Carolina.
How does pay-per-call (x402) pricing work?
There is no subscription and no API key. When an agent calls a paid endpoint, the server replies with an HTTP 402 challenge stating the exact price; the agent pays that amount in USDC on the Base network and the call completes. You pay only per accepted call — URL-to-Markdown is $0.001 per page, and a Verdict Protocol decision is $0.25.
How do you know a listed x402 service is actually live?
Listings can go stale, and a directory that never runs the service cannot tell. This site's x402 services directory re-reads each service's own manifest every 20 minutes; a service whose manifest stops answering is labeled with what is wrong — no manifest, not enabled, or no paid routes listed — instead of being shown as live. The directory shows its last checked time, so you can see how fresh any entry is before an agent relies on it.
Who uses SML's APIs and MCP servers?
AI agents, and the developers and operators who run them — agent frameworks, MCP clients and automation builders that need web data, trust checks and payment evidence without opening accounts. Human readers use the same site for the field guides and checklists.
How do I buy a guide or product?
Guides are one-time purchases with instant download — no subscription, no course funnel. Browse the catalog on Google Play Books or Gumroad, check out, and the file is yours. Agent-facing APIs are not bought in a store; the agent pays per call in USDC at the moment it uses them.
Is ScriptMasterLabs veteran-owned?
Yes. Script Master Labs LLC is a Service-Disabled Veteran-Owned Small Business, registered on SAM.gov (UEI G24VZA4RLMK3, CAGE 21U51) and based in Kinston, North Carolina.
How do AI agents pay — what do they need?
An agent needs a wallet holding USDC on Base and an x402-aware client. It calls the endpoint, receives the 402 price challenge, signs the payment and retries the call; settlement is on-chain and the response carries verifiable payment evidence. No account or API key is required. Use a new wallet holding only a few dollars of USDC. Never your main wallet.
What if something I buy doesn’t work — refunds?
Pay-per-call APIs: a failed call is never charged — you pay only for accepted calls, so there is nothing to refund. Digital products bought through Stripe, Gumroad, Whop or Shopify: if a file is broken or a delivery fails, we fix the delivery or refund that purchase — email tim@scriptmasterlabs.com with your receipt. Whop subscriptions can be cancelled any time inside Whop and stay live until the end of the period already paid for.
LIVE JEV.AI × FORECAST COURT • PUBLIC FIVE-JUROR PROOF
AI makes the claim.
JEV is the jury.
Seven live ticker scoreboards, frozen five-session predictions, and five real TypeSafe Jev research jurors. At the October 22 Reel launch, our GME model had 18/36 correct (50%) versus 28/36 (77.8%) for the bullish baseline. That's a dated launch snapshot; current results appear below.
4 REJECT PROMOTION · 1 WAIT · SIGNED AND CURRENTLY VERIFIED · NO AUTOTRADING
See the court's receipts · Watch the 16-second reel
Research outcomes, not profit evidence. Jev model provided by TypeSafe AI; no endorsement or certification implied.
▶ WATCH REAL PUBLISHED REEL