MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Data access / search

Graunt

The agent-native marketplace for AI data: search listings and read their price and rights.

Checks passed
13 / 22

1 failed · 8 not measured

Median response
517 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
10

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Outdated check

Last connection measurement is over 24 hours old. Current availability is unknown.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
312

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 517 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-06-18, serverInfo.name graunt-mcp.

  • Pass
    Lists tools

    tools/list returned 10 tools.

  • Pass
    Current protocol

    Negotiated 2025-06-18. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 517 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 517 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    65 of 65 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-10-31T14:44:18.863518Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using Graunt

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http graunt https://api.graunt.com/v1/mcp

Capabilities

Tools 10

fetch

Read one Graunt catalog packet by id. Returns its title, description, price and whether an account is needed, its seller-declared rights, and its public URL. A free packet that needs no account also returns its files: small text files (CSV, JSON, Markdown, text and similar) in the text, and a short-lived download link for each listed file in metadata.files (at most 100 per fetch; files_not_listed counts the rest). A video listing also returns metadata.video: its subjects, measured hours, per-hour price with volume tiers, and the seller's declarations.

Discovered
get_agent_commerce_manifest

Read the agent commerce manifest for a listing: price, rights, and how to buy it.

Discovered
get_asset

Read one listing by id as Graunt's API gives it (GET /v1/listings/{id}). To answer a question from a listing or cite it, use fetch.

Discovered
get_asset_manifest

Read the canonical asset manifest (sha256-stamped).

Discovered
get_bundle_manifest

Read the per-asset bundle inventory: every delivered file with role, format, size and content hash, plus counts that name the population each one counted.

Discovered
match_video_spec

Find out how many hours of video on Graunt meet a spec, and in which categories. Give the requirements that matter (shortest side, frame rate, clip length, sound, on-screen text, overlays, first and last shots, freezes, slowed footage, releases, clearances, AI generation, uses, delivery); leave the rest out. Returns matching hours per category and per listing: hours that meet every requirement on recorded evidence, and hours that meet every requirement the evidence covers but lack evidence for one or more. Each listing carries its list price, price per hour and volume tier, its hours per category with what each category alone costs where it sells by category, the spec's categories priced as one order, its delivery modes and where each number comes from. Thresholds snap to fixed steps and the answer says which were applied. Give hours_wanted to also get a proposal: whole listings across sellers that reach those hours on recorded evidence, lowest price per measured hour first, each at its seller's own price, for the person you work for to add to their cart. Nothing is held, and short_units is the gap the proposal leaves, not a statement about what Graunt holds.

Discovered
meta_capabilities

Read /v1/meta/capabilities: what Graunt offers to an agent, in machine-readable form.

Discovered
meta_refinery_support_matrix

Read /v1/meta/refinery-support-matrix: the source types Graunt accepts and what the Refinery does with each. Every upload gets deterministic extraction; a model drafts only the listing fields a seller leaves empty.

Discovered
search

Search Graunt's catalog of evaluated data from many sellers. Returns matching packets with their id, title, and public URL. Start here to find data, then read one with fetch. search_match.words says how the listings matched the query: ALL (every word, or a synonym of it), SOME (some of the words), WORD_START (words that start with the query's words), SIMILAR_TITLE (titles spelled like the query) or NONE (no listing). On SOME and WORD_START each listing names its matched_words. Each result's type is listing or pool, and search_match describes only listings. Pools use a separate keyword matcher over their public descriptions and data types. When no listing matches, next_steps.post_request_url opens a buyer request with the query filled in.

Discovered
search_assets

Search the public catalog and return listing rows as Graunt's API gives them (GET /v1/listings), paginated. To find data for a person, use search, then fetch. search_match.words says how the listings matched the query: ALL (every word, or a synonym of it), SOME (some of the words), WORD_START (words that start with the query's words), SIMILAR_TITLE (titles spelled like the query) or NONE (no listing). On SOME and WORD_START each listing names its matched_words. When no listing matches, next_steps.post_request_url opens a buyer request with the query filled in.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected517 ms10