mercury.taborlin.co · an independent project

Two open-source tools that make Mercury work with AI.

Mercury already ships an API, a CLI, and an MCP connector for Claude and ChatGPT. These build on that: a Claude Skill for founder finance workflows, and a Vercel AI SDK package for product builders. Below them, a map of the wider ecosystem.

The toolsThe mapGet in touch
Contents
01mercury-cfoClaude Skill02@taborlin/mercury-ainpm package03The ecosystem map43 entries · 8 categories
Section 01

The tools

Open source, read-only, built on Mercury’s public API and MCP connector, tested against a real Mercury account.

mercury-cfo

Claude Skill · works with Mercury’s official connector

Ask Claude for a burn report, runway scenarios, an investor-update draft, a subscription audit, or overdue-invoice chasing — and get numbers you can trust. The skill adds the math discipline an LLM doesn’t apply on its own: full-window pagination, partial months excluded, settled transactions only.

Claude → Settings → Skills → add mercury-cfo.skill
Source on GitHub ↗Download .skill ↓

@taborlin/mercury-ai

npm package · Mercury tools for the Vercel AI SDK

Gives any AI app read-only Mercury tools: balances, transactions, computed burn rate, runway, recurring-charge detection, vendor rankings. Answers, not raw JSON — the math runs in TypeScript, not in the model.

npm install @taborlin/mercury-ai ai
Source on GitHub ↗npm ↗
Section 02

The ecosystem map

Where Mercury’s AI surface stands: what Mercury has shipped, what the tools above add, and the integrations that could come next. Filter by category or status.

All 43 entries

Foundation (Mercury)

05

Mercury API

Live

Full REST API — accounts, transactions, recipients, cards, AR invoices — with scoped tokens and a sandbox. The bedrock every integration below builds on.

Mercury CLI

Live

Terminal-native banking, structured for piping, scripting, and LLM consumption. The bridge into CI pipelines and coding-agent workflows.

Mercury MCP Server

Live

Hosted, OAuth, read-only. The safest on-ramp for agent banking — and the platform the tools on this page build on.

Claude Connector Directory

Live

Mercury MCP is listed in Anthropic's connector directory — one-click OAuth for any Claude user.

ChatGPT (OpenAI)

Live

Mercury MCP connects to ChatGPT via MCP support — the second major assistant surface already reached.

AI assistants & directories

04

mercury-cfo (Claude Skill)

Built here

Burn reports, runway scenarios, investor updates, subscription audits, invoice chasing — on top of the official connector. Open source, from this project.

Claude Skills ecosystem

Priority

Skills are the layer where connectors become workflows. An official Mercury skill (or a curated gallery) turns the directory listing into daily usage — and a joint launch story with Anthropic.

Gemini (Google)

Watchlist

Third assistant surface. As Google’s agent/extension ecosystem matures, the same MCP-first playbook applies.

Microsoft Copilot Studio

Watchlist

Enterprise agent-building surface; relevant as Mercury moves upmarket with larger startups and their finance teams.

Coding & agent workspaces

09

Claude Code

Priority

Terminal-native agents meet a terminal-native bank. Mercury CLI + MCP inside Claude Code makes “check runway from the repo” real; a natural joint devrel story.

Cursor

Priority

The default AI IDE for the startups Mercury banks. MCP support means Mercury context can live where founders already spend their day.

Replit

Priority

Agent-built apps need banking primitives. A Mercury template/integration in Replit Agent puts “add banking data” one prompt away for a huge builder audience.

v0 (Vercel)

Priority

Generative UI for the Next.js crowd. Pair with the AI SDK package: “v0, build me a burn dashboard on Mercury” as a co-marketing moment.

Windsurf

Watchlist

MCP-capable AI IDE; same motion as Cursor at smaller scale.

GitHub Copilot

Watchlist

Largest coding-assistant footprint; MCP support opens the door for Mercury context in enterprise-adjacent workflows.

Lovable

Watchlist

Prompt-to-app builder with an AI-native founder audience that overlaps heavily with Mercury’s ICP.

Bolt.new (StackBlitz)

Watchlist

Same prompt-to-app motion; integration templates are the low-cost play.

Devin (Cognition)

Watchlist

Autonomous engineering agents will eventually need to read the books of the businesses they operate in.

Agent frameworks & SDKs

09

@taborlin/mercury-ai (Vercel AI SDK)

Built here

npm package giving any AI SDK app read-only Mercury tools — computed burn, runway, and recurring-charge detection instead of raw JSON. Open source, from this project.

Vercel AI SDK

Priority

The default TypeScript AI toolkit for Mercury’s own demographic. The package built here is the proof-of-concept for an official one.

LangChain / LangGraph

Priority

Largest Python agent ecosystem. An official Mercury toolkit here is table stakes for the “financial layer for agents” position.

OpenAI Agents SDK

Priority

OpenAI’s first-party agent framework; MCP-compatible, huge distribution, obvious co-launch candidate.

n8n

Priority

The workflow-automation layer where ops teams build agentic back offices. A first-class Mercury node unlocks thousands of SMB automations.

CrewAI

Watchlist

Multi-agent orchestration with strong SMB/ops adoption — the “AI finance team” demo writes itself.

Mastra

Watchlist

Rising TypeScript agent framework from the Gatsby team; young, fast-moving, receptive to early partners.

Pydantic AI

Watchlist

Type-safe Python agents with a quality-focused community; small effort, high credibility.

Zapier

Watchlist

Mainstream automation reach; agent features make the existing integration surface newly strategic.

MCP registries

04

Smithery

Priority

Where agent developers discover MCP servers. Being listed, verified, and well-documented everywhere developers search is cheap, compounding distribution.

mcpservers.org

Watchlist

Already lists Mercury’s official server — keep the listing rich (examples, workflows) rather than a bare link.

PulseMCP

Watchlist

Registry + newsletter audience of MCP early adopters; a natural launch-coverage channel.

Glama

Watchlist

MCP directory with quality scoring; verification and examples raise ranking.

AI-native finance & back office

05

Digits

Priority

AI accounting for startups — a bank-feed partnership where Mercury is the preferred data source is a classic better-together deal.

Truewind

Watchlist

AI bookkeeping/CFO services for startups; same better-together shape.

Finaloop

Watchlist

AI accounting for e-commerce — extends the motion beyond venture-backed startups.

Basis

Watchlist

AI agents for accounting firms — reaches Mercury customers through the accountants who serve them.

Fondo

Watchlist

Bookkeeping/tax for startups; high Mercury-customer overlap makes co-marketing easy.

Agentic payments

03

Payman

Priority

Human-approval-gated payments for AI agents — the pattern Mercury’s write-access story will need. Partner, study, or hire the pattern.

Skyfire

Watchlist

Agent identity + payment rails; relevant to how agents will eventually authenticate to banks.

Stripe Agent Toolkit

Watchlist

The competitive benchmark: Stripe’s open-source agent tooling shows the bar for developer-first financial AI. Watch closely, learn faster.

Distribution & community

04

Y Combinator

Priority

The densest concentration of AI-native founders choosing a bank in week one. Agent-banking workshops and batch-time templates compound for years.

AI Engineer (conference)

Priority

The room where agent builders actually are. A talk + booth demo of agent banking beats a quarter of cold outreach.

Anthropic DevRel / MCP community

Watchlist

Deepen the existing connector relationship into co-created content, example galleries, and spec-evolution input.

a16z speedrun & accelerators

Watchlist

Games/AI accelerator cohorts full of agent-native companies at bank-choosing age.