② Run

Verifiable fintech workflows built to run in your browser

This is an entry point for fintech workflows that only live in your browser, covering compliance, payments, lending, and insurance. Choose a task, run it through a published workflow, and receive a cryptographically verifiable result. Every output carries an execution hash you can replay or share with an auditor. Your agents can do it all as well, because every tool and workflow produces a verifiable receipt, including via MCP.

Agents: connect at mcp.ainumbers.co/mcp · index at /llms.txt · read the whitepaper

Explore the suite

The primary elements of serverless architecture

Run and build

Run OpenChainGraph workflows on your own machine with a local-first control plane.

Chain Builder 🔗

Build a workflow from suite nodes, guided step by step.

Assemble and run workflows step by step.

Wire workflows visually on the drag-and-drop Canvas builder.

Try OpenChainGraph nodes and chains without touching a real workflow.

Run any suite kernel in the frozen in-browser VM and watch its execution hash form.

Verify and evidence

Check the execution_hash of any OpenChainGraph artifact, client-side, no data leaves your browser.

Conformance Gate 🚦

Drop in an artifact and run the applicable subset of the SPEC.md §15 gate suite client-side: which gates passed, which failed, and why.

Audit-Trail Crosswalk 📋

Receipt fields mapped clause by clause to EU AI Act Article 12, PCI DSS v4.0.1 Requirement 10, and SOX, gaps included.

Verification Desk 🔎

Drop an artifact, chain, or evidence bundle for a full section-by-section report: shape, signature, compute proof, anchor, attestations, approvals.

Groth16 Receipts 🧾

What the compute receipt on a proof-bearing kernel contains, what its seal proves and what it does not, and three ways to verify one: browser, on-chain, or repo.

Mechanical Verification ⚙️

The standard behind verification claims that come with a re-run: the claim tiers, the exact evidence paths, and the commands that check them.

Groth16, Drawn 📐

Six animated scenes from kernel source to verified receipt: the two lanes that meet in a node file, the fields a verifier reads, and the bindings that make a receipt count.

Verification, Drawn 📊

Eight animated scenes on the mechanical standard: the claim ladder, the denominators behind each tier, one kernel's evidence stack, and the red controls that prove the harnesses can fail.

Bundle Diff 🔀

Compare two artifacts or evidence bundles: which input hashes moved, which kernel or policy versions changed, which §27 approvals differ, whether the verdict changed.

Workpaper Index 🗂️

Drag any number of artifacts or evidence files into a PBC-style index: filename, hash, type, section coverage, signer roles, chain membership, exported as a hash-anchored JSON file.

Timestamp and sign any hash as independent evidence, no account needed.

Key Ceremony Helper 🔑

Generate a did:key, sign a §27.1 role-binding record, and print a dual-control key-custody record. Key never leaves your browser.

Look up a hash, check receipts, and replay execution hashes your agent produced.

Convert and inspect

Conversion Suite 📄

Catalog of receipt-emitting document converters and the Conversion Lab.

Conversion Lab 🔬

Convert PDF, DOCX, and files client-side, with a build receipt.

OIM Fact-Table Viewer 📊

Round-trip check an ocg-xbrl-json export: facts/dimensions/units table, canonicalValues + JCS conformance, execution_hash metadata verify.

MCP Playground 🔌

Call the live MCP server from your browser: initialize, list tools, call any tool through a generated form, copy the curl or client-config snippet.

Reg Deadline Wall 📅

Filter regulatory filing deadlines by regime or jurisdiction, every date source-cited, export to your calendar.

Connect

MCP Endpoint 🔌

Add the catalog to Claude, ChatGPT, or any MCP client, with setup steps.

For Agents 🤖

A machine-readable index of the suite for coding agents and crawlers.

AIN Bridge 🌉

Connect the suite to your own stack and data.

Suggest a Tool 💡

Ask for a tool that isn't in the catalog yet.

Add the live MCP endpoint to your agent

Claude: paste https://mcp.ainumbers.co/mcp under Customize → Connectors → Add custom connector.

Read

Whitepaper 📃

The full case for verifiable, replayable fintech workflows.

OCG: the standard 📐

The OpenChainGraph specification for verifiable, replayable workflows.

The OpenAPI reference for the suite.

Education Hub 🎓

Explainers, industry guides, and the AI Act Article 12 mapping.

Workflow Hub 🗂️

Browse every published workflow in the suite.

Guides & Hubs 📚

Category hubs and evidence walkthroughs, grouped in one directory.

Find a tool

Search 590+ tools and workflows

Results include standalone tools and multi-step workflows. All run locally, no data sent anywhere.

Connect an agent

Your first receipt in 60 seconds

Point any MCP client at the suite and run one tool. Here is the whole path, start to finish.

Find the listing at co.ainumbers/tools in the MCP registry, or connect directly.
Endpoint: https://mcp.ainumbers.co/mcp

Add it to your client config:

{
  "mcpServers": {
    "ainumbers": {
      "url": "https://mcp.ainumbers.co/mcp"
    }
  }
}

Run any tool. Your agent gets back a receipt with an execution hash.
Paste that receipt into verify.html to check it, client-side, no data leaves your browser.

Verify witness cosignatures with the witness cosignature verifier. Document conversion with a verifiable receipt is live now at the Conversion Lab.