oasdiff

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io.github.oasdiff/oasdiff

oasdiff

Detect breaking changes, generate changelogs, diff, and validate OpenAPI specs.

Developer tools & code

Developer Tools Is oasdiff down?Alternatives

11 of 22 checks passed

Handshake
Tools listed
Updated recently

Responded

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

Connect to server

Median latency

470 ms

Uptime, 30 days

Not measured

Last checked

16 hr ago

Measurement details

Core

Pass
Reachable
Latest probe returned HTTP 200 in 470 ms.
16 hr ago
Pass
Valid handshake
protocolVersion 2025-11-25, serverInfo.name oasdiff.
16 hr ago
Pass
Lists tools
tools/list returned 4 tools.
16 hr ago
Pass
Current protocol
Negotiated 2025-11-25. The bar is 2025-06-18 or newer.
16 hr ago
Pass
HTTPS
The endpoint URL is https.

Performance

Not measured
Fast (p50)
Median latency 470 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.
Not measured
Consistent (p95)
95th percentile 470 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.
16 hr ago

Access

Pass
Open access
tools/list succeeded with no credential, and the record declares none.
16 hr ago
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.
16 hr ago
Pass
Valid input schemas
Every inputSchema is a JSON Schema object.
16 hr ago
Pass
Parameters documented
7 of 7 parameters have a description (100%). The bar is 80%.
16 hr ago
Fail
Safety hints
4 tools set neither readOnlyHint nor destructiveHint.
16 hr ago

Publisher

Pass
Verified namespace
Listed in the Official MCP Registry.
Not measured
Website matches publisher
This namespace is not a reverse domain, so the website comparison does not apply.
Fail
Source repo linked
No repository URL is on file.
Fail
Repo owner matches
The GitHub repository owner does not match the namespace login.
Pass
Recently updated
Updated 2026-06-16T20:37:01.377966Z, within 180 days.
4 mo ago
Not measured
Open-source licence
No GitHub repository to ask about a licence.

Tools

oasdiff_breaking_changes
Detect breaking API changes between two OpenAPI specifications. Pass the base (old) and revision (new) specs as YAML or JSON; returns the breaking and warning-level changes. Use this when the question is whether an API change breaks existing clients. Use oasdiff_changelog instead to list every change including non-breaking and informational ones, oasdiff_diff for the raw added/removed/modified structure, or oasdiff_validate to check a single spec rather than compare two. Both specs must be valid, self-contained OpenAPI (external $ref URLs or files are not resolved).
Measured 16 hr ago
oasdiff_changelog
Produce a full changelog of every detected change between two OpenAPI specifications (base vs revision), down to informational changes. Pass both specs as YAML or JSON. Use this when you want the complete set of changes at every severity. Use oasdiff_breaking_changes instead when you only care whether the change is breaking (less noise), or oasdiff_diff for the raw structural diff without a backward-compatibility judgment. Both specs must be valid, self-contained OpenAPI (external $ref URLs or files are not resolved).
Measured 16 hr ago
oasdiff_diff
Show the structural diff between two OpenAPI specifications (base vs revision): what was added, removed, or modified. Pass both specs as YAML or JSON. Use this when you want the raw structural changes rather than a backward-compatibility verdict. Use oasdiff_breaking_changes to judge whether changes break clients, or oasdiff_changelog for a severity-classified changelog. Both specs must be valid, self-contained OpenAPI (external $ref URLs or files are not resolved).
Measured 16 hr ago
oasdiff_validate
Validate a single OpenAPI specification against the OpenAPI and JSON Schema rules. Pass the spec as YAML or JSON; returns the findings (empty when the spec is valid). Use this when you have one spec and want to check it is well-formed. For comparing two specs, use oasdiff_breaking_changes, oasdiff_changelog, or oasdiff_diff instead. The spec must be self-contained (external $ref URLs or files are not resolved).
Measured 16 hr ago

Probe history

16 hr agook470 ms4 tools

Status and uptime

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Markdown

[![MCP Heartbeat](https://mcpheartbeat.com/badge/io.github.oasdiff/oasdiff.svg)](https://mcpheartbeat.com/s/io.github.oasdiff/oasdiff)

HTML

<a href="https://mcpheartbeat.com/s/io.github.oasdiff/oasdiff"><img alt="MCP Heartbeat" src="https://mcpheartbeat.com/badge/io.github.oasdiff/oasdiff.svg"></a>

Uptime markdown

[![MCP Heartbeat uptime](https://mcpheartbeat.com/badge/io.github.oasdiff/oasdiff.svg?kind=uptime)](https://mcpheartbeat.com/s/io.github.oasdiff/oasdiff)

Served from https://mcpheartbeat.com.

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Connect to this server

Claude Code

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

Cursor .cursor/mcp.json

{
  "mcpServers": {
    "oasdiff": {
      "url": "https://api.oasdiff.com/mcp"
    }
  }
}

VS Code .vscode/mcp.json

{
  "servers": {
    "oasdiff": {
      "type": "http",
      "url": "https://api.oasdiff.com/mcp"
    }
  }
}