feat: add Umia plugin for Base MCP#144
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* feat: add Umia plugin for Base MCP First futarchy / decision-market plugin for Base MCP. Hybrid integration (umia-cli + auth-free /api/v1/calldata/* HTTP API) routed through send_calls; never signs locally. Appends four net-new discovery tags to the vocabulary. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix: correct Umia plugin doc accuracy (pre-upstream review) Live-verified fixes from the internal plugin-spec review of PR #1: - Clarify the `:venture` REST path param is the project `slug` (`project.slug` from `/hub/markets`); the venture id/address 404. - Correct the mainnet-env note — `config` returns null contracts and `/hub/fundraises` is empty, so gate all market/auction features to testnet (previous "auction factory only" was unsupported). - Auction `--max-price` must be strictly above the clearing price (API returns 422 at or below it), not "at/above". Signing model, endpoints, allowlist, chains, ERC6909 ids, and the send_calls mapping all verified against the live testnet API. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix: address Copilot PR review comments (pre-upstream review) - Onboarding callout: source the wallet address from Base MCP `get_wallets` (not from the user), and add a high-risk-category disclaimer — decision markets/token sales may be jurisdiction- restricted and some auction steps require verification; never help circumvent geofencing or verification gates. - Surface Routing: stop asserting the API hosts "are on the allowlist" — allowlisting is a maintainer-provisioned step; describe the not-allowlisted fallback (hub UI) for chat-only surfaces. - Example Prompts: correct `GET /hub/markets?status=open` to the documented `GET /api/v1/hub/markets?status=open` (shorthand path 404s). CLI `@latest` (3 comments) intentionally kept: the plugin-spec's `cliPackage` examples use `@latest`; pinning is mandated only for stdio MCPs, and `version` is the plugin-doc version, not the package version. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * Potential fix for pull request finding Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> * Potential fix for pull request finding Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> * Potential fix for pull request finding Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> --------- Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
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Description
Adds the Umia plugin to the Base MCP skill. Umia runs onchain decision markets (futarchy) and continuous-clearing token auctions across EVM chains. The plugin reads markets, auctions, prices, and positions over Umia's HTTP API and builds unsigned
{ to, value, data }calldata via the auth-free/api/v1/calldata/*endpoints, then routes every write through Base MCPsend_calls. With a shell it uses theumiaCLI (npx umia-cli@latest); on chat-only surfaces it calls the same HTTP API directly. It never signs or broadcasts outside Base MCP and never handles private keys.hybrid(HTTP API + optional CLI, surface-dependent routing)base,base-sepolia(multi-chain; the active set is discovered viaumia config/GET /api/v1/config, never assumed)This PR also registers four genuinely new tags introduced by the plugin —
futarchy,decision-markets,token-auctions,governance— by appending them to the tag vocabulary list inreferences/plugin-spec.md, as required by the spec's Contribution Scope.Type of change
Affected skill(s)
base-mcp
Plugin checklist
Base MCP Plugin Submission Agreement (when applicable)
By checking the box below, I agree and represent on behalf of the protocol/entity it references that:
I am authorized to submit this plugin on behalf of the protocol/entity it references;
the plugin does not infringe or misappropriate any third party's rights;
the plugin and the underlying protocol comply with all applicable laws, and my API enforces the same geofencing and eligibility restrictions as my own user-facing app;
the plugin is in full compliance with our protocol's/entity's then-current terms and conditions, and if not, submission and use thereafter is considered a formal written exemption to such terms and conditions;
the plugin accurately describes its behavior and contains no hidden, deceptive, or malicious instructions, and my API will not return malicious or unexpected calldata;
the protocol/entity is solely responsible for the plugin and is submitting a plugin is subject to the Base Account and Base App Terms of Service as using a "Service"; and
Base may modify, decline to list, or remove the plugin at any time, for any reason.
I have read and agree to the Base MCP Plugin Submission Agreement above.
Related issues
N/A
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