Axiom

Axiom is a cloud-native observability platform for storing, querying, and analyzing log and event data at scale. Use the REST API to ingest data, run queries using APL (Axiom Processing Language), and manage datasets programmatically.

Official docs: https://axiom.co/docs/restapi/introduction

When to Use

Use this skill when you need to:

Send logs, metrics, or event data to Axiom
Query and analyze data using APL (Axiom Processing Language)
Manage datasets, monitors, and annotations
Build observability pipelines and dashboards

Prerequisites

Create an Axiom account at https://app.axiom.co/register
Create an API token with appropriate permissions (Settings > API Tokens)
Create a dataset to store your data

Token Types

Axiom supports two token types:

Type	Prefix	Use Case
API Token	`xaat-`	Most operations (datasets, ingest, queries, monitors)
Personal Access Token (PAT)	`xapt-`	Full account access (required for `/v2/user` endpoint)

Set environment variables:

# Required: API Token for most operations
export AXIOM_API_TOKEN="xaat-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"

# Optional: For endpoints that require PAT (e.g., Get Current User)
export AXIOM_PERSONAL_ACCESS_TOKEN="xapt-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
export AXIOM_ORG_ID="your-org-id"

Important: When using $VAR in a command that pipes to another command, wrap the command containing $VAR in bash -c '...'. Due to a Claude Code bug, environment variables are silently cleared when pipes are used directly.
bash -c 'curl -s "https://api.example.com" -H "Authorization: Bearer $API_KEY"' | jq .

How to Use

Base URLs

Ingest (US East): https://us-east-1.aws.edge.axiom.co
Ingest (EU Central): https://eu-central-1.aws.edge.axiom.co
API: https://api.axiom.co

1. List Datasets

bash -c 'curl -s "https://api.axiom.co/v2/datasets" -H "Authorization: Bearer ${AXIOM_API_TOKEN}"' | jq .

2. Get Dataset Info

bash -c 'curl -s "https://api.axiom.co/v2/datasets/my-logs" -H "Authorization: Bearer ${AXIOM_API_TOKEN}"' | jq .

3. Create Dataset

bash -c 'curl -s -X POST "https://api.axiom.co/v2/datasets" -H "Authorization: Bearer ${AXIOM_API_TOKEN}" -H "Content-Type: application/json" -d '"'"'{"name": "my-logs", "description": "Application logs"}'"'"'' | jq .

4. Ingest Data (JSON)

bash -c 'curl -s -X POST "https://us-east-1.aws.edge.axiom.co/v1/ingest/my-logs" -H "Authorization: Bearer ${AXIOM_API_TOKEN}" -H "Content-Type: application/json" -d '"'"'[{"message": "User logged in", "user_id": "123", "level": "info"}]'"'"'' | jq .

5. Ingest Data (NDJSON)

bash -c 'curl -s -X POST "https://us-east-1.aws.edge.axiom.co/v1/ingest/my-logs" -H "Authorization: Bearer ${AXIOM_API_TOKEN}" -H "Content-Type: application/x-ndjson" -d $'"'"'{"message": "Event 1", "level": "info"}\n{"message": "Event 2", "level": "warn"}'"'"'' | jq .

6. Query Data with APL

bash -c 'curl -s -X POST "https://api.axiom.co/v1/datasets/_apl?format=tabular" -H "Authorization: Bearer ${AXIOM_API_TOKEN}" -H "Content-Type: application/json" -d '"'"'{"apl": "[\"my-logs\"] | where level == \"error\" | limit 10", "startTime": "2024-01-01T00:00:00Z", "endTime": "2025-12-31T23:59:59Z"}'"'"'' | jq .

7. Query with Aggregation

bash -c 'curl -s -X POST "https://api.axiom.co/v1/datasets/_apl?format=tabular" -H "Authorization: Bearer ${AXIOM_API_TOKEN}" -H "Content-Type: application/json" -d '"'"'{"apl": "[\"my-logs\"] | summarize count() by level", "startTime": "2024-01-01T00:00:00Z", "endTime": "2025-12-31T23:59:59Z"}'"'"'' | jq .

8. Create Annotation

bash -c 'curl -s -X POST "https://api.axiom.co/v2/annotations" -H "Authorization: Bearer ${AXIOM_API_TOKEN}" -H "Content-Type: application/json" -d '"'"'{"datasets": ["my-logs"], "type": "deployment", "title": "v1.2.0 deployed", "time": "2024-12-24T10:00:00Z"}'"'"'' | jq .

9. List Monitors

bash -c 'curl -s "https://api.axiom.co/v2/monitors" -H "Authorization: Bearer ${AXIOM_API_TOKEN}"' | jq .

10. Get Current User (Requires PAT)

Note: This endpoint requires a Personal Access Token (PAT), not an API Token.

bash -c 'curl -s "https://api.axiom.co/v2/user" -H "Authorization: Bearer ${AXIOM_PERSONAL_ACCESS_TOKEN}" -H "x-axiom-org-id: ${AXIOM_ORG_ID}"' | jq .

11. Delete Dataset

bash -c 'curl -s -X DELETE "https://api.axiom.co/v2/datasets/my-logs" -H "Authorization: Bearer ${AXIOM_API_TOKEN}"' | jq .

APL Query Examples

APL (Axiom Processing Language) is similar to Kusto Query Language (KQL). Use ["dataset-name"] syntax for dataset names with special characters.

Query	Description
`["dataset"] \| limit 10`	Get first 10 events
`["dataset"] \| where level == "error"`	Filter by field value
`["dataset"] \| where message contains "timeout"`	Search in text
`["dataset"] \| summarize count() by level`	Count by group
`["dataset"] \| summarize avg(duration_ms) by bin(_time, 1h)`	Hourly average
`["dataset"] \| sort by _time desc \| limit 100`	Latest 100 events
`["dataset"] \| where _time > ago(1h)`	Events in last hour

Guidelines

Use Edge URLs for Ingest: Always use the edge endpoint (us-east-1.aws.edge.axiom.co or eu-central-1.aws.edge.axiom.co) for data ingestion, not api.axiom.co
Batch Events: Send multiple events in a single request for better performance
Include Timestamps: Events without timestamps will use server receive time
Rate Limits: Check X-RateLimit-Remaining header to avoid hitting limits
APL Time Range: Always specify startTime and endTime for queries to improve performance
Data Formats: JSON array is recommended; NDJSON and CSV are also supported

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