io.usefulapi/openfda
REMOTE · OPENFDA.USEFULAPI.IO · SCANNED OCT 4
Search openFDA drug, device, food and adverse-event datasets.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security89
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation is enforced on tool calls, advertised via RFC 9728 protected-resource metadata. Discovery is public, which costs nothing: no tool can be invoked without a token. View diagnostics → Pass
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
- The authorisation server offers only Dynamic Client Registration (RFC 7591), which MCP 2026-07-28 deprecated in favour of Client ID Metadata Documents. View diagnostics → Partial
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability68
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 3083 tokens (~220/item across 14 items; 14 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management13
- Stability observed for 4 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 14 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 14 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
How do I install the io.usefulapi/openfda MCP server?
io.usefulapi/openfda is a hosted endpoint at https://openfda.usefulapi.io/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · openfda.usefulapi.io
claude mcp add --transport http io-usefulapi-openfda 'https://openfda.usefulapi.io/mcp'
{
"mcpServers": {
"io-usefulapi-openfda": {
"url": "https://openfda.usefulapi.io/mcp"
}
}
} {
"servers": {
"io-usefulapi-openfda": {
"type": "http",
"url": "https://openfda.usefulapi.io/mcp"
}
}
} [mcp_servers.io-usefulapi-openfda] url = "https://openfda.usefulapi.io/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"io-usefulapi-openfda": {
"type": "remote",
"url": "https://openfda.usefulapi.io/mcp",
"enabled": true
}
}
} openclaw mcp add io-usefulapi-openfda --url 'https://openfda.usefulapi.io/mcp' --transport streamable-http
mcp_servers:
io-usefulapi-openfda:
url: "https://openfda.usefulapi.io/mcp" {
"McpServers": {
"io-usefulapi-openfda": {
"Transport": "http",
"Url": "https://openfda.usefulapi.io/mcp"
}
}
} assistant mcp add io-usefulapi-openfda -t streamable-http -u 'https://openfda.usefulapi.io/mcp'
{
"mcpServers": {
"io-usefulapi-openfda": {
"type": "http",
"url": "https://openfda.usefulapi.io/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 3 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 2 Oct 26 0
- Server version: 1.3.0 → 1.5.1 functional
- 1 Oct 26 +4
- HTTPS: unverified → pass ▲ security
- First check of Authorization: partial security
- Stability: unverified → 0.03 ▲ functional
- Server version: 1.0.0 → 1.3.0 functional
- 30 Sept 26 +53
- Authorization: unverified → pass ▲ security
- Injection markers: unverified → pass ▲ security
- Transport: fail → pass ▲ security
- First check of Judged manipulation: pass security
- MCP protocol: unverified → fail ▼ functional
- Tool coverage: unverified → 100 ▲ functional
- First check of Schema quality: fail functional
- First check of Schema quality: excellent functional
- First check of Destructive annotations: pass functional
- First check of Schema quality: fail functional
- First check of Tool coverage: 100 functional
- 29 Sept 26 18
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 4 Oct 2026 · Probed https://openfda.usefulapi.io/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=usefulapi.io | CN=WE1,O=Google Trust Services,C=US | 13 Sept 2026 | 12 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | d9be3287b0fde9630e825ba1f79bff3f |
| SANs: usefulapi.io, *.usefulapi.io | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of openfda.usefulapi.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 57355 | 8 | Verified |
| usefulapi.io. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Enforced and verified
The endpoint asked for a token and published valid RFC 9728 metadata describing how to get one.
| Result | Enforced and verified |
|---|---|
| Enforced | On tool calls |
| HTTP status | 200 |
WWW-Authenticate challenge Bearer realm="OAuth", resource_metadata="https://openfda.usefulapi.io/.well-known/oauth-protected-resource/mcp"
Bearer realm="OAuth", resource_metadata="https://openfda.usefulapi.io/.well-known/oauth-protected-resource/mcp"Protected resource metadata
| Document | https://openfda.usefulapi.io/.well-known/oauth-protected-resource/mcp |
|---|---|
| Retrieved | Yes |
| Resource | https://openfda.usefulapi.io/mcp |
| Authorisation server | https://openfda.usefulapi.io |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://openfda.usefulapi.io/mcp | Verified | 200 | |
| http (plaintext) | http://openfda.usefulapi.io/mcp | HTTPS enforced | 301 | https://openfda.usefulapi.io/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
count Count/aggregate over an openFDA dataset ~217
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.
| Name | Type | Req | Description |
|---|---|---|---|
| endpoint | string | yes | The openFDA endpoint to query, e.g. 'drug/event', 'device/510k', 'food/enforcement'. |
| field | string | yes | The field to count/aggregate on (required), e.g. 'patient.reaction.reactionmeddrapt.exact' or 'classification'. Add '.exact' to count whole phrases rather than tokens. |
| limit | integer | – | Max number of distinct terms to return (1–1000). |
| search | string | – | Optional Lucene filter applied before aggregation (same syntax as the search tools). |
No output schema declared.
No examples provided.
openfda_query Query any openFDA endpoint (generic) ~328
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.
| Name | Type | Req | Description |
|---|---|---|---|
| count | string | – | Optional field to aggregate on (returns `results: [{term, count}]`); add '.exact' for whole phrases. |
| endpoint | string | yes | The openFDA endpoint to query, e.g. 'drug/event', 'device/510k', 'food/enforcement'. |
| limit | integer | – | Max number of records to return (1–1000). Omit for the API default of 1. |
| search | string | – | Lucene-style query over this dataset's fields: 'field:term', AND with '+AND+', OR with a space, exact phrase via a '.exact' field suffix with quotes, ranges as '[low+TO+high]' (dates like '[20040101+… |
| skip | integer | – | Number of records to skip, for pagination (0–25000; skip+limit reaches up to ~26000 records). |
| sort | string | – | Sort order, as `field:asc` or `field:desc`, e.g. 'receivedate:desc'. |
No output schema declared.
No examples provided.
search_device_510k Search 510(k) premarket clearances ~217
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.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max number of records to return (1–1000). Omit for the API default of 1. |
| search | string | – | Lucene-style query over this dataset's fields: 'field:term', AND with '+AND+', OR with a space, exact phrase via a '.exact' field suffix with quotes, ranges as '[low+TO+high]' (dates like '[20040101+… |
| skip | integer | – | Number of records to skip, for pagination (0–25000; skip+limit reaches up to ~26000 records). |
| sort | string | – | Sort order, as `field:asc` or `field:desc`, e.g. 'receivedate:desc'. |
No output schema declared.
No examples provided.
search_device_classification Search device classification ~215
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.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max number of records to return (1–1000). Omit for the API default of 1. |
| search | string | – | Lucene-style query over this dataset's fields: 'field:term', AND with '+AND+', OR with a space, exact phrase via a '.exact' field suffix with quotes, ranges as '[low+TO+high]' (dates like '[20040101+… |
| skip | integer | – | Number of records to skip, for pagination (0–25000; skip+limit reaches up to ~26000 records). |
| sort | string | – | Sort order, as `field:asc` or `field:desc`, e.g. 'receivedate:desc'. |
No output schema declared.
No examples provided.
search_device_events Search device adverse-event reports (MAUDE) ~202
Search the MAUDE database: medical device adverse events — reported injuries, deaths and malfunctions involving medical devices. openFDA device/event endpoint.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max number of records to return (1–1000). Omit for the API default of 1. |
| search | string | – | Lucene-style query over this dataset's fields: 'field:term', AND with '+AND+', OR with a space, exact phrase via a '.exact' field suffix with quotes, ranges as '[low+TO+high]' (dates like '[20040101+… |
| skip | integer | – | Number of records to skip, for pagination (0–25000; skip+limit reaches up to ~26000 records). |
| sort | string | – | Sort order, as `field:asc` or `field:desc`, e.g. 'receivedate:desc'. |
No output schema declared.
No examples provided.
search_device_recalls Search device recalls ~208
Search medical device recalls: recalled devices with the reason, recalling firm, classification, product code and status. openFDA device/recall endpoint.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max number of records to return (1–1000). Omit for the API default of 1. |
| search | string | – | Lucene-style query over this dataset's fields: 'field:term', AND with '+AND+', OR with a space, exact phrase via a '.exact' field suffix with quotes, ranges as '[low+TO+high]' (dates like '[20040101+… |
| skip | integer | – | Number of records to skip, for pagination (0–25000; skip+limit reaches up to ~26000 records). |
| sort | string | – | Sort order, as `field:asc` or `field:desc`, e.g. 'receivedate:desc'. |
No output schema declared.
No examples provided.
search_drug_events Search drug adverse-event reports (FAERS) ~217
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.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max number of records to return (1–1000). Omit for the API default of 1. |
| search | string | – | Lucene-style query over this dataset's fields: 'field:term', AND with '+AND+', OR with a space, exact phrase via a '.exact' field suffix with quotes, ranges as '[low+TO+high]' (dates like '[20040101+… |
| skip | integer | – | Number of records to skip, for pagination (0–25000; skip+limit reaches up to ~26000 records). |
| sort | string | – | Sort order, as `field:asc` or `field:desc`, e.g. 'receivedate:desc'. |
No output schema declared.
No examples provided.
search_drug_labels Search drug product labels (SPL) ~214
Search Structured Product Labeling (SPL): the official prescribing information for drugs — indications, warnings, dosage, adverse reactions, drug interactions and more. openFDA drug/label endpoint.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max number of records to return (1–1000). Omit for the API default of 1. |
| search | string | – | Lucene-style query over this dataset's fields: 'field:term', AND with '+AND+', OR with a space, exact phrase via a '.exact' field suffix with quotes, ranges as '[low+TO+high]' (dates like '[20040101+… |
| skip | integer | – | Number of records to skip, for pagination (0–25000; skip+limit reaches up to ~26000 records). |
| sort | string | – | Sort order, as `field:asc` or `field:desc`, e.g. 'receivedate:desc'. |
No output schema declared.
No examples provided.
search_drug_ndc Search the National Drug Code directory ~220
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.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max number of records to return (1–1000). Omit for the API default of 1. |
| search | string | – | Lucene-style query over this dataset's fields: 'field:term', AND with '+AND+', OR with a space, exact phrase via a '.exact' field suffix with quotes, ranges as '[low+TO+high]' (dates like '[20040101+… |
| skip | integer | – | Number of records to skip, for pagination (0–25000; skip+limit reaches up to ~26000 records). |
| sort | string | – | Sort order, as `field:asc` or `field:desc`, e.g. 'receivedate:desc'. |
No output schema declared.
No examples provided.
search_drug_recalls Search drug recall enforcement reports ~209
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.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max number of records to return (1–1000). Omit for the API default of 1. |
| search | string | – | Lucene-style query over this dataset's fields: 'field:term', AND with '+AND+', OR with a space, exact phrase via a '.exact' field suffix with quotes, ranges as '[low+TO+high]' (dates like '[20040101+… |
| skip | integer | – | Number of records to skip, for pagination (0–25000; skip+limit reaches up to ~26000 records). |
| sort | string | – | Sort order, as `field:asc` or `field:desc`, e.g. 'receivedate:desc'. |
No output schema declared.
No examples provided.
search_drug_shortages Search drug shortages ~200
Search current and resolved drug shortages: the affected product, status, reason, availability and related dates. openFDA drug/shortages endpoint.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max number of records to return (1–1000). Omit for the API default of 1. |
| search | string | – | Lucene-style query over this dataset's fields: 'field:term', AND with '+AND+', OR with a space, exact phrase via a '.exact' field suffix with quotes, ranges as '[low+TO+high]' (dates like '[20040101+… |
| skip | integer | – | Number of records to skip, for pagination (0–25000; skip+limit reaches up to ~26000 records). |
| sort | string | – | Sort order, as `field:asc` or `field:desc`, e.g. 'receivedate:desc'. |
No output schema declared.
No examples provided.
search_drugsfda Search Drugs@FDA approved products ~215
Search Drugs@FDA: FDA-approved drug products and their applications (NDA/ANDA/BLA), sponsors, approval dates, products and submissions. openFDA drug/drugsfda endpoint.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max number of records to return (1–1000). Omit for the API default of 1. |
| search | string | – | Lucene-style query over this dataset's fields: 'field:term', AND with '+AND+', OR with a space, exact phrase via a '.exact' field suffix with quotes, ranges as '[low+TO+high]' (dates like '[20040101+… |
| skip | integer | – | Number of records to skip, for pagination (0–25000; skip+limit reaches up to ~26000 records). |
| sort | string | – | Sort order, as `field:asc` or `field:desc`, e.g. 'receivedate:desc'. |
No output schema declared.
No examples provided.
search_food_events Search food/supplement/cosmetic adverse events (CAERS) ~213
Search the CFSAN Adverse Event Reporting System (CAERS): adverse events and product complaints for foods, dietary supplements and cosmetics. openFDA food/event endpoint.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max number of records to return (1–1000). Omit for the API default of 1. |
| search | string | – | Lucene-style query over this dataset's fields: 'field:term', AND with '+AND+', OR with a space, exact phrase via a '.exact' field suffix with quotes, ranges as '[low+TO+high]' (dates like '[20040101+… |
| skip | integer | – | Number of records to skip, for pagination (0–25000; skip+limit reaches up to ~26000 records). |
| sort | string | – | Sort order, as `field:asc` or `field:desc`, e.g. 'receivedate:desc'. |
No output schema declared.
No examples provided.
search_food_recalls Search food recall enforcement reports ~208
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.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max number of records to return (1–1000). Omit for the API default of 1. |
| search | string | – | Lucene-style query over this dataset's fields: 'field:term', AND with '+AND+', OR with a space, exact phrase via a '.exact' field suffix with quotes, ranges as '[low+TO+high]' (dates like '[20040101+… |
| skip | integer | – | Number of records to skip, for pagination (0–25000; skip+limit reaches up to ~26000 records). |
| sort | string | – | Sort order, as `field:asc` or `field:desc`, e.g. 'receivedate:desc'. |
No output schema declared.
No examples provided.
What is the io.usefulapi/openfda MCP server?
io.usefulapi/openfda is an MCP server listed in the public MCP registry as io.usefulapi/openfda. Search openFDA drug, device, food and adverse-event datasets. This page covers its hosted endpoint (https://openfda.usefulapi.io/mcp).
Is the io.usefulapi/openfda MCP server safe to use?
io.usefulapi/openfda scores 76 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.usefulapi/openfda MCP server expose?
io.usefulapi/openfda exposes 14 tools: search_drug_events, search_drug_labels, search_drug_ndc, search_drug_recalls, search_drugsfda, and 9 more. Their descriptions and schemas cost roughly 3,083 tokens of context every time the server is loaded.
Does the io.usefulapi/openfda MCP server require authentication?
Yes. io.usefulapi/openfda asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.
Is the io.usefulapi/openfda MCP server still maintained?
io.usefulapi/openfda is still listed as active in the MCP registry. We last reached this channel on 4 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.