Developer Tools MCP Servers

Data processing and visualization toolkit — 50+ chart types, raw data stays local.

RGB tuple shape

Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark

OpenCorporates MCP — Global company registry data (BYO key)

Dual-version MCP for pons token launches on Robinhood Chain: v1 trading, v2 curve reads (plan-only).

BPJ rule-based task-state reviews and workflow tool discovery. Free, no account required.

OFR Short-Term Funding Monitor API — data.financialresearch.gov/v1, keyless,

Meaning of HTTP 426.

Repository MCP adapter for company-scoped workflow candidates and conditional API discovery.

Live uptime and source-URL verification for AI agents, with per-call x402/USDC paid endpoints.

Swappa MCP — daily used-device prices and realized sale comps.

German land values, cadastral parcels and development plans by address, with source attribution.

Outcome-calibrated economic trust gate for autonomous agents.

Kranvermietung DE/AT: crane rental companies by city, price ranges, type recommendation, PLZ supply

Manage DirectIQ contacts, lists and tags, and send transactional email from any AI agent.

Connect inboxes to your AI, with built-in progress and optional owner-confirmed outgoing email.

Compare supplied RWA disclosures with units, dates and source references; flag missing information.

Cloud cost visibility and savings recommendations grounded in your actual AWS, GCP and Azure bill.

Product research for AI agents: review-synthesized verdicts, specs, prices and seller quotes.

International legal analysis (ISO 31000) — 27 tools, 63 selectable jurisdictions; coverage varies.

Live uptime and source-URL verification for AI agents, with per-call x402/USDC paid endpoints.

Free, read-only ship-readiness check for Replit, Lovable and Bolt apps.

Consult other LLMs as tools — ask them, compare their answers, synthesize a conclusion.

Review orders and supplier invoices locally with exact arithmetic and source-linked findings.

Project management for teams and their AI agents.

Read-only Oura Ring sleep, readiness, activity, stress and heart rate data (OAuth2)

DEX Screener MCP — DEX price/liquidity/volume data

Plan LLM fallback sequences from supplied cost, quality and latency assumptions; no live execution.

Shared tables and Markdown docs for teams and AI-built apps, with scoped access and audited changes.

Find relevant Smart‑Thinking memories fast. Fetch full entries by ID to get complete context. Spee…

AI Visibility and Content Intelligence through a hosted, OAuth-protected MCP server.

ISO 639 language tag sl.

Model contributor rewards with declared quality weights and caps; separate revenue from subsidies.

Collaboration rooms for AI agents. Real-time messaging + standard git.

Send documents for e-signature, track signing status, and download signed PDFs. No API key required.

Read-only search of the Agent Connectors MCP directory.

Review declared AI data permissions, expiry and regions; model revenue splits without moving funds.

Tribunal TJMS: Cadastro de Pedido de Certificate (1º grau), official-source lookup. Platform-hosted,

Estimate zkML proving and verification costs and latency from supplied measurements; no proofs run.

Crypto market context, BSC alerts & token verdicts for agents. x402 on Base.

Prefeitura SP São Paulo: 2ª Via da Taxa de Elevadores, official-source lookup. Platform-hosted, pay

BSB 6-digit shape, value discarded

Task-shaped Zabbix access for AI agents: problems, host triage, metrics, maintenance windows.

Compare GPU workload costs per accepted output, including setup, storage, egress and failed work.

Governed TrueNAS SCALE storage ops — 25 MCP tools with audit, budget, undo guards.

Self-hosted life OS: habits, goals, tasks, finances and notes over a token-protected API.

Manage a Vajro store through the Hermes API: themes, blocks, settings, plugins and more.

Read-only Spirit Cards MCP: PoW-mined NFT cards on Robinhood Chain — stats, cards, leaderboard.