Files
Alberto Schiabel 3335bb3013 fix(docs): restore API reference pages dropped by undeclared tags (#3973)
This PR:

- fixes a regression introduced by
https://github.com/ComposioHQ/composio/pull/3956: fumadocs-openapi 11's
`groupBy: 'tag'` silently skips operations whose tag is not declared in
the document's top-level `tags` array, which 404'd all 16 Projects and
Organization Management operation pages (e.g.
`/reference/api-reference/projects/postProjectUsageSummary`) on both
v3.1 and v3, and dropped them from the sitemap and search index
- adds `declareOperationTags()` (`docs/lib/openapi-tags.ts`), applied at
spec load time in `lib/openapi.ts` (covers build-time-fetched specs) and
at sync time in `scripts/fetch-openapi.mjs`, which now also warns when
the upstream payload omits tags; the checked-in specs are normalized
accordingly (purely additive)
- adds CI guards in `tests/static/api-reference-routes.test.ts`: spec
invariants (every visible operation has a tag and `operationId`),
bidirectional spec-vs-generated-routes set equality through the
production loader path, a negative test pinning fumadocs' silent-drop
behavior (fails when upstream fixes it, signaling the workaround can be
retired), and validation that every `ApiEndpointsTable` quick-link href
resolves to a generated page
- extends `Docs - Check Links` with a nightly (02:30 UTC) + manual
external-URL sweep via a new `lint:links:external` script; the validator
only fails on evidence a link is dead (404/410 or repeated network
errors, with UA/timeout/GET-fallback/retry and per-URL caching) and
scheduled failures file a deduplicated tracking issue; PR runs keep the
fast internal-only check
- fixes six dead external links the first sweep found (moved Claude
Agent SDK docs, stale dashboard settings URL ×2, a `master`-branch path
now pinned to tag `0.5.0+post.1`, and two removed `ComposioHQ` example
repos whose mentions were dropped — their code is embedded in the pages
via `RepoBrowser`)

## Context

fumadocs-openapi 10 generated a page for any tag string found on an
operation; v11 requires the tag to be declared top-level and skips
silently otherwise (`preset-auto.js`: `builder.fromTagName(tag)` →
`continue`, no warning). The backend spec generator omits `Projects`,
`Organization Management`, and `Invite Codes` from `tags`, so their
operation pages vanished while the checked-in MDX tag landing pages kept
rendering with dead quick links. With the normalizer, the generated URL
set is byte-identical to the pre-#3956 set (234 routes, verified via
`getReferenceSource().getPages()` diff); no revert needed.

Existing checks missed this because `lint:links` only extracts markdown
links and `Card` hrefs (the dead links live in `ApiEndpointsTable`'s
array prop) and validates against the same loader that shrank, and the
integration suite samples fixed routes under tags that survived. The new
completeness guard derives expectations from the specs themselves, so
routine data syncs don't churn it.
2026-07-29 03:05:43 +05:30

120 lines
4.5 KiB
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---
title: Errors
description: Composio API error codes, HTTP status codes, and troubleshooting guide
keywords: [API errors, error codes, HTTP status codes, error handling, troubleshooting, "400 bad request", "401 unauthorized", "429 rate limit"]
---
Composio uses conventional HTTP response codes to indicate the success or failure of an API request. In general: codes in the `2xx` range indicate success, codes in the `4xx` range indicate an error with the information provided, and codes in the `5xx` range indicate an error with Composio's servers.
## The error object
```json
{
"error": {
"message": "No connected account found for this user and toolkit",
"status": 400,
"request_id": "req_abc123def456",
"suggested_fix": "Connect the user to the toolkit first"
}
}
```
### Attributes
| Attribute | Description |
|-----------|-------------|
| `message` | A human-readable message providing details about the error. |
| `status` | The HTTP status code. |
| `request_id` | A unique identifier for this request. Include this when contacting support. |
| `suggested_fix` | When available, guidance on how to resolve the error. |
## HTTP status codes
| Code | Status | Description |
|------|--------|-------------|
| 200 | OK | Everything worked as expected. |
| 400 | Bad Request | The request was unacceptable, often due to missing a required parameter. |
| 401 | Unauthorized | No valid API key provided. |
| 403 | Forbidden | The API key doesn't have permissions to perform the request. |
| 404 | Not Found | The requested resource doesn't exist. |
| 409 | Conflict | The request conflicts with another request (perhaps due to using the same idempotent key). |
| 422 | Unprocessable Entity | The request was valid but cannot be processed. |
| 429 | Too Many Requests | Too many requests hit the API too quickly. We recommend an exponential backoff of your requests. |
| 500, 502, 503, 504 | Server Errors | Something went wrong on Composio's end. |
## Error types
### Authentication errors
Composio uses two types of API keys:
- **Project API key** (`x-api-key`) — For project-level operations
- **Organization API key** (`x-org-api-key`) — For organization-level access across projects
| Error | Cause |
|-------|-------|
| Invalid API key | The API key is incorrect or revoked. Verify in [Settings](https://dashboard.composio.dev/~/project/settings/api-keys). |
| No authentication provided | The request is missing the `x-api-key` or `x-org-api-key` header. |
| Invalid organization key | The organization API key is incorrect or revoked. Verify in Organization Settings. |
| Insufficient permissions | The API key doesn't have access to this resource. |
<Callout>
See [Authenticating users](/docs/authentication) for more help.
</Callout>
### Tool errors
Errors that occur when fetching or executing tools.
| Error | Cause |
|-------|-------|
| Tool not found | The tool slug doesn't exist. Tool slugs are case-sensitive and use `SCREAMING_SNAKE_CASE`. |
| No connected account | The user hasn't connected to this toolkit yet. |
| Tool execution failed | The external service returned an error. Check tool parameters and user permissions. |
<Callout>
See [Tools and toolkits](/docs/how-composio-works) for more help.
</Callout>
### Connection errors
Errors related to connected accounts.
| Error | Cause |
|-------|-------|
| Connected account not found | The `connectedAccountId` doesn't exist or was deleted. |
| Auth refresh required | The OAuth token has expired. Prompt the user to re-authenticate. |
| Connected account deleted | The connection was removed. Create a new connection. |
### Trigger errors
Errors related to trigger subscriptions.
| Error | Cause |
|-------|-------|
| Trigger not found | The trigger slug doesn't exist for this toolkit. |
| Trigger instance deleted | The trigger subscription or its connected account was removed. |
<Callout>
See [Triggers](/docs/triggers) for more help.
</Callout>
## Rate limiting
When you hit rate limits, you'll receive a `429` status code. See [Rate Limits](/reference/rate-limits) for details on limits by plan and best practices for handling rate limit errors.
## Getting help
When contacting support, include the `request_id` from the error response.
<Cards>
<Card title="Discord" href="https://discord.com/channels/1170785031560646836/1268871288156323901">
Community support
</Card>
<Card title="Email" href="mailto:support@composio.dev">
Contact support team
</Card>
<Card title="GitHub" href="https://github.com/ComposioHQ/composio/issues/new?labels=bug">
Report a bug
</Card>
</Cards>