MCP server

Keryx

io.github.tang-vu/keryx

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Budgeted research with cited evidence and visible payment state on the selected Arc network.

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

27

Token cost

About 6,375 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http keryx https://keryx.cc/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.keryx]
url = "https://keryx.cc/mcp"

Gemini CLI

{"mcpServers":{"keryx":{"httpUrl":"https://keryx.cc/mcp"}}}

Cursor

{"mcpServers":{"keryx":{"url":"https://keryx.cc/mcp"}}}

VS Code

{"servers":{"keryx":{"type":"http","url":"https://keryx.cc/mcp"}}}

Antigravity

agy mcp add keryx https://keryx.cc/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"keryx","server_url":"https://keryx.cc/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"keryx","server_url":"https://keryx.cc/mcp"}

Tools

• deliverable_acceptance_read ~156 tokens
  Owner-only ordinary prepaid A2A deliverable state. Requires explicit deliverable:read. Historical remedy:none and missing response window remain visible. Native/enrolled, Monthly, private v2 and browser-only originals are unavailable. Not source-decision agreement or semantic verification.
• deliverable_acceptance_submit ~374 tokens
  Record Accept, Request revision or Reject for the original customer's exact retained delivery. Requires explicit deliverable:write, expected current revision/digests and an idempotency key. Reason is private; publishState explicitly shares state/timestamp only. Request storage does not execute a rev
• draft_check ~324 tokens
  Split a private passage into sentences, bind citation markers ([3], cite{key}, [@key], Author (Year)) to a BibTeX, RIS or DOI/link reference list, and compare each cited sentence with source text you supply. Each verdict (supported, partly-supported, not-found, source-unavailable) carries a verbatim
• evidence_draft ~374 tokens
  Assemble user-selected claim spans and related-work quote themes from saved Include paper records and caller-supplied retained Keryx report rows. A theme may carry author-written statements (contribution, agreement, disagreement, gap); a statement naming a paper is exported only with a citation and
• evidence_procurement ~320 tokens
  Assess missing evidence requirements, supplied provider offers, selections, deliveries and caller reviews with the shared private evidence procurement contract. Amounts are exact integer micro-USDC. Signature and content-binding checks do not establish delivery quality, buyer authority, payment or s
• history_export ~106 tokens
  Same owner-private v2 contract as /api/me/asks. Explicit history:read required. Current store, bounded filters/keysets; missing membership/claims stay explicit. Export has explicit truncation/continuation. No research, signer, payment, public-owner selector or mutation authority.
• history_owned_read ~108 tokens
  Same owner-private v2 contract as /api/me/asks. Explicit history:read required. Current store, bounded filters/keysets; missing membership/claims stay explicit. Export has explicit truncation/continuation. No research, signer, payment, public-owner selector or mutation authority.
• history_private_jobs_detail ~177 tokens
  Private data for this authenticated caller only. Exact-payer completed private jobs in the current store; explicit history:read required. Bounded scan/continuation, unknown provenance and NULL own spend/creator settlement remain explicit. No wallet selector, public report/share link, model prompt, r
• history_private_jobs_export ~351 tokens
  Private data for this authenticated caller only. Exact-payer completed private jobs in the current store; explicit history:read required. Bounded scan/continuation, unknown provenance and NULL own spend/creator settlement remain explicit. No wallet selector, public report/share link, model prompt, r
• history_private_jobs_list ~317 tokens
  Private data for this authenticated caller only. Exact-payer completed private jobs in the current store; explicit history:read required. Bounded scan/continuation, unknown provenance and NULL own spend/creator settlement remain explicit. No wallet selector, public report/share link, model prompt, r
• history_read ~277 tokens
  Read bounded pages of the verified API-key wallet's ordinary current-store runs. Requires explicit history:read. Literal case-sensitive question search; storeNetwork describes the deployment, not per-run settlement. Recorded spend/allocation is not a payment receipt. No wallet selector, linked accou
• keryx_operator_status ~161 tokens
  Observe public prepaid research operations, queue, recorded ordinary/recovered/unknown completion latency cohorts and hold/review rationale. Timing is order createdAt to updatedAt (acceptance to recorded completion/update); later reconciliation can extend it. It is not first-answer or settlement tim
• keryx_public_job_ledger ~204 tokens
  Inspect a partial selected-network public web-dispatch transfer ledger and balanced exact micro-USDC vouchers. Browser funding and Keryx sponsorship are separate. Pending/ambiguous/batched-attribution legs do not enter settled totals. No customer questions/identities, private invoices, complete busi
• keryx_purchase_outcomes Moves money · ~224 tokens
  Read a public dispatch's retained exact-version BUY/citation/payment observations. Returns bounded sample counts, citation hit rate, calibration bands and integer micro-USDC uncited access cost. Recorded settlement is not revalidated on chain. Historical participant cohort is unknown; causal regret,
• keryx_source_learning ~266 tokens
  Read the same bounded observational source/topic record as the public creator page and API. Only write-time independently classified/funded outside observations qualify; owners, unknown and private history are excluded. Source-declared public topics, counts, recorded citation contribution, exact rat
• keryx_status ~62 tokens
  Describe this MCP surface, its payment behavior, and the active caller tier.
• operator_obligations_read ~158 tokens
  Read a private conservative obligation projection for the exact server-delegated reader with explicit operator:read API-key scope. Disabled without protected reader/role configuration. Partial native history remains unknown with zero safe/advisory surplus. No cash probe, signer, custody, spending, r
• paper_lookup ~384 tokens
  Find paper titles, recorded contributors, DOI and exact repository versions without research or payment. Default: retained catalog metadata with observation times. Set searchRepositories=true only to explicitly send the query to arXiv/Crossref (at most two requests, no paper-body reading). Missing D
• profile_identities_read ~123 tokens
  Read only the verified key owner's saved ORCID/GitHub identities. Requires explicit profile:read scope. No wallet selector, provider OAuth, linking, unlinking, research or payment. Link identities interactively in your private profile browser page.
• profile_read ~83 tokens
  Read the verified key owner's private profile and attributed activity. Requires explicit profile:read scope. No public identity, research or payment.
• profile_update ~317 tokens
  Replace the verified key owner's private display name, handle, one-line bio/purpose and links. Requires explicit profile:write scope. No wallet selector or identity verification; no payment/history changes.
• research ~661 tokens
  Research a question under a USDC creator-payment budget. Keryx selects sources, pays access tolls and weighted citation rewards on the configured Arc network, then returns qualified source excerpts and a receipt. Complete synthesis and per-assertion entailment remain unverified. This remote surface
• research_feedback_read ~222 tokens
  Original-caller private opinion on the exact delivered ordinary research answer. Requires its private bearer capability; a public report ID or link grants no authority. First choice is retained, exact retries are idempotent. Silence is no response. No research, source fetching, revision execution, r
• research_feedback_submit ~259 tokens
  Original-caller private opinion on the exact delivered ordinary research answer. Requires its private bearer capability; a public report ID or link grants no authority. First choice is retained, exact retries are idempotent. Silence is no response. No research, source fetching, revision execution, r
• research_monthly ~83 tokens
  Read the four-request, 30-day Research Monthly quote and handoff. The current quote identifies its payment network. Never buys or redeems a plan.
• run_owner_export ~150 tokens
  Owner-private current-store read using the verified key's explicit history:read scope. No wallet selector or signing. Visibility, defaults and erasure require the interactive web session. Storage admission is required.
• run_privacy_read ~134 tokens
  Owner-private current-store read using the verified key's explicit history:read scope. No wallet selector or signing. Visibility, defaults and erasure require the interactive web session. Storage admission is required.

Browse

• GitHub tools
• Payments
• GitHub and code hosting
• Databases
• Research papers

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