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

openFDA MCP by usefulapi

Search openFDA drug, device, food and adverse-event datasets.

Checks passed
14 / 22

0 failed · 8 not measured

Median response
58 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
14

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

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?
402

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 58 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name openfda-mcp.

  • Pass
    Lists tools

    tools/list returned 14 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 58 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 58 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

    58 of 58 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.

  • Pass
    Source repo linked

    A 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 2026-11-10T23:33:31.528594Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using openFDA MCP by usefulapi

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 openfda-mcp-by-usefulapi https://openfda.usefulapi.io/mcp

Capabilities

Tools 14

openfda_count

openFDA's most valuable feature: aggregate over any dataset by a field to get a top-terms histogram (returns `results: [{term, count}]` instead of records). Use the '.exact' field suffix to count whole phrases. Example: endpoint 'drug/event', field 'patient.reaction.reactionmeddrapt.exact', search 'patient.drug.medicinalproduct:"aspirin"' → the most common reactions reported for aspirin.

Discovered
openfda_query

Generic escape hatch to query ANY supported openFDA endpoint with the full parameter set — covers the less-common datasets (device/pma, device/registrationlisting, device/udi, device/covid19serology, drug/orangebook, other/nsde, other/substance, tobacco/problem, etc.). Use the named search tools for the common datasets; use this for everything else or for advanced queries. openFDA REST API.

Discovered
openfda_search_device_510k

Search 510(k) premarket notification clearances: devices cleared for market as substantially equivalent to a predicate, with applicant, decision, product code and dates. openFDA device/510k endpoint.

Discovered
openfda_search_device_classification

Search the FDA device classification database: a device type's product code, device class (I/II/III), regulation number, medical specialty and submission requirements. openFDA device/classification endpoint.

Discovered
openfda_search_device_events

Search the MAUDE database: medical device adverse events — reported injuries, deaths and malfunctions involving medical devices. openFDA device/event endpoint.

Discovered
openfda_search_device_recalls

Search medical device recalls: recalled devices with the reason, recalling firm, classification, product code and status. openFDA device/recall endpoint.

Discovered
openfda_search_drug_events

Search the FDA Adverse Event Reporting System (FAERS): reports of drug side effects, adverse reactions and medication errors submitted to the FDA. Returns individual case reports. openFDA drug/event endpoint.

Discovered
openfda_search_drug_labels

Search Structured Product Labeling (SPL): the official prescribing information for drugs — indications, warnings, dosage, adverse reactions, drug interactions and more. openFDA drug/label endpoint.

Discovered
openfda_search_drug_ndc

Search the National Drug Code (NDC) directory: every drug product's code, name, dosage form, route, active ingredients, marketing status and labeler. openFDA drug/ndc endpoint.

Discovered
openfda_search_drug_recalls

Search drug recall enforcement reports: recalled drug products with the reason, classification (Class I/II/III), recalling firm, distribution and status. openFDA drug/enforcement endpoint.

Discovered
openfda_search_drug_shortages

Search current and resolved drug shortages: the affected product, status, reason, availability and related dates. openFDA drug/shortages endpoint.

Discovered
openfda_search_drugsfda

Search Drugs@FDA: FDA-approved drug products and their applications (NDA/ANDA/BLA), sponsors, approval dates, products and submissions. openFDA drug/drugsfda endpoint.

Discovered
openfda_search_food_events

Search the CFSAN Adverse Event Reporting System (CAERS): adverse events and product complaints for foods, dietary supplements and cosmetics. openFDA food/event endpoint.

Discovered
openfda_search_food_recalls

Search food recall enforcement reports: recalled food products with the reason, classification (Class I/II/III), recalling firm, distribution state and status. openFDA food/enforcement endpoint.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected58 ms14