Redeal MCP server
Neutral fairness computation for agents: fair division, verifiable random, Shapley shares.
Little public usage data yet
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If you have run it, two minutes of your experience saves the next person an afternoon.
Redeal tools (12, 2 write)
write = sends, deletes, buys or postscommit_inputFreeCommit your sealed input as a hash (sealed mode). Nobody — including redeal — can see your input until all parties have committed. After the last commitment the deal opens for reveals immediately.
compute_commitment_toolFreeCompute a commitment string for (input, salt): sha256(JCS(input) ++ salt_bytes), prefixed 'sha256:'. Convenience only — the rule is public and you can compute it yourself.
create_dealwrite actionFreeCreate a fairness deal. You are party 0 (initiator). Returns a deal id and one invite token per party — give each counterparty their own token. Sealed mode: everyone commits a hash, then reveals; certificate is issued automatically when the deal computes or goes VOID.
create_keywrite actionFreeGet a free redeal API key. No signup, no email — this is the entire onboarding. The key is shown once; store it. Use it as api_key in create_deal.
get_certificateFreeFetch the signed fairness certificate for a finished deal (state CERTIFIED). Includes the labelled signature (es256 or ed25519) and transparency-log inclusion proof. Verify it with verify_certificate.
get_dealFreeRead a deal's public state: protocol state (OPEN/COMMITTING/REVEALING/CERTIFIED/VOID/EXPIRED), who has committed/revealed, deadlines, result, and certificate_id once issued. Inputs of other parties are never exposed.
get_entropyFreeFinish a random.v1 deal once every party has revealed: redeal fetches the deal's pre-declared drand round from the public League of Entropy beacon (fixed at creation, publicly cross-checkable), computes the draw, and issues the certificate. Call this after the last reveal_input; the deal rests in REVEALING until you do. Idempotent — safe to retry.
get_public_certificateFreeFetch a certificate's full JSON (outcome included) by id. Works for public deals (the default). Parties-only deals and unknown ids both return NOT_FOUND. To re-verify the computation itself, use verify_certificate (checks) or the CLI re-runner with the parties' inputs.
list_algorithmsFreeList redeal's algorithms (split.v1 fixed-budget fair division, random.v1 verifiable random selection, shapley.v1 Shapley shares, auction.v1 sealed-bid second-price auctions) with their input contracts and the published test vectors (served inline — the same fixtures the engine test suite runs). Read this before creating a deal.
reveal_inputFreeReveal your committed input. It must hash to your earlier commitment. When the last party reveals, the deal computes and the fairness certificate is issued automatically — fetch it with get_certificate.
validate_inputFreeValidate your algorithm input against the deal's contract BEFORE you commit. A commitment binds the exact input bytes — a contract-violating input (e.g. split.v1 valuations not summing to exactly 1000) can never be corrected afterwards and the deal will VOID at the reveal deadline. Always validate first, then compute_commitment_tool, then commit_input. Read-only: nothing is stored or changed.
verify_certificateFreeVerify a redeal certificate by id: signature check (current or published legacy key) + transparency-log inclusion check, reported per check. Free, no credential required, always.
Public scan report
scanner v0.1.9 · 2026-09-22 · same rubric, same numbers if you re-run it
- –Code scanremote-only server, no package to scann/a
- Live reliabilityremote reachable in 1140ms20/20
- Tool poisoning12 tool descriptions checked15/15
- Auth qualityopen endpoint exposes 2 write-action tools with no auth3/15
- Maintenancerepository not readable: repo not found3/15
- Maintainer identityverified namespace with website, no repo4/10
Findings (1)
- highWrite-action tools reachable without authentication
auth.open-write
Install directly
claude mcp add --transport http redeal https://api.redeal.dev/mcp
Redeal: common questions
- Is Redeal MCP server safe?
- With care: it is graded C, so read the findings first (60/100). Read the Redeal safety report
- How do I install Redeal?
- It runs remotely at api.redeal.dev. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
- Does Redeal need an API key?
- Not as far as the registry entry and our scan can tell: no credentials are declared or required.
- Is Redeal maintained?
- The latest release is v0.7.0.
- Is Redeal up?
- 100% of our last 20 checks got an answer. We check remote servers about four times a day.