DIY vs. ChainContext

Building a production-quality MCP server for a smart contract is a week of engineering work. ChainContext makes it a five-minute configuration task.

Building it yourself

  1. 1

    Install and understand the MCP SDK

    2–4 hours

    Learn the TypeScript or Python SDK. Understand transports, capabilities, tool/resource/prompt shapes.

  2. 2

    Parse the contract ABI

    3–6 hours

    Fetch from Etherscan/Sourcify/Solscan, normalize, handle proxies (EIP-1967), deal with missing or outdated entries.

  3. 3

    Write tool handlers

    4–8 hours

    One per function you want to expose. Input validation, output formatting, error paths, decimal normalization.

  4. 4

    Encode calldata for writes

    3–6 hours

    ABI-encode function calls. Return unsigned transactions. Expose via WalletConnect URI or raw calldata.

  5. 5

    Stand up HTTP + SSE transport

    4–8 hours

    Express/Fastify server, streamable-http endpoint, SSE endpoint, auth tokens, CORS, rate limiting.

  6. 6

    Deploy and maintain

    Ongoing

    Dockerfile, CI/CD, TLS, logs, uptime monitoring. Repeat for every chain and every contract upgrade.

Total, first contract

2–5 days

Plus ongoing infrastructure, TLS, uptime, chain upgrades — per contract, per chain.

With ChainContext

  1. 1

    Paste contract address

    < 1 min

    ABI auto-fetched from Etherscan / Sourcify / Solscan. Proxy detection built in.

  2. 2

    Pick a recipe or start from scratch

    < 1 min

    18 pre-built recipes bundle tools + prompts + resources for common use cases.

  3. 3

    Click Deploy

    < 1 min

    Hosted MCP server goes live at {slug}.chaincontext.dev. Streamable HTTP + SSE out of the box.

  4. 4

    Connect your agent

    < 1 min

    One-click snippets for Claude Desktop, Cursor, Windsurf.

Total, first contract

Under 5 minutes

Hosted infrastructure, uptime, analytics, registry publishing included.

What's included out of the box

ABI auto-fetch

Etherscan, Sourcify, Solscan. EIP-1967 proxy resolution.

Non-custodial writes

Unsigned calldata + WalletConnect URI. Keys never leave the agent.

Streamable HTTP + SSE

Both MCP transports on every project. No config.

EVM + Solana

Mainnet and major L2s. Testnet/mainnet toggle per project.

Usage analytics

Tool call volume, error rate, latency percentiles, per-tool breakdown.

Registry publishing

MCP Official, ENS, Base on-chain, IPFS — one click each.

Ship this afternoon, not this sprint.

Free forever on one project. No card, no commitment.

Start building