Context Relay
URL-to-Markdown web extraction and context compression for AI agents. Fetch a public web page and return clean, task-relevant, citation-verifiable LLM context with exact excerpts, locators, hashes, and estimated tokens saved. Use before an agent summarizes, answers questions from, or cites a long or noisy URL. Deterministic and model-free. Public HTML only; no PDFs, logins, or JavaScript-only pages.
Offering
- Provider
- context-relay.contextrelay.workers.dev
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Web Search Research
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://context-relay.contextrelay.workers.dev/api/v1/context- MIME type
- Not provided
- First seen
- 2026-10-16T01:50:06.715Z
- Last seen
- Tags
- url-to-markdown, web-extraction, context-compression, AI-agent, citations
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "5000",
"payTo": "0x08B11EA90aEb253eF0F954BE108A12E6783D8189"
}
]Observed health
- Status
- Healthy
- Latest latency
- 237 ms
- Average latency
- 470 ms
- HTTP status
- 204
- Last checked
- Reachability
- 100% over 14 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"freshness_seconds": {
"default": 3600,
"maximum": 86400,
"minimum": 60,
"type": "integer"
},
"max_price_usd": {
"description": "Abort before retrieval if the fixed service price exceeds this amount.",
"minimum": 0,
"type": "number"
},
"max_tokens": {
"default": 4000,
"maximum": 12000,
"minimum": 250,
"type": "integer"
},
"question": {
"description": "Optional task or question used to rank relevant passages.",
"maxLength": 2000,
"type": "string"
},
"url": {
"description": "Public HTTP or HTTPS page to retrieve.",
"format": "uri",
"maxLength": 4096,
"type": "string"
}
},
"required": [
"url"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}Output schema
{
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"context": {
"additionalProperties": false,
"properties": {
"citations": {
"items": {
"additionalProperties": false,
"properties": {
"excerpt": {
"type": "string"
},
"excerpt_sha256": {
"pattern": "^[a-f0-9]{64}$",
"type": "string"
},
"id": {
"type": "string"
},
"locator": {
"type": "string"
}
},
"required": [
"id",
"locator",
"excerpt",
"excerpt_sha256"
],
"type": "object"
},
"minItems": 1,
"type": "array"
},
"estimated_tokens_saved": {
"minimum": 0,
"type": "integer"
},
"markdown": {
"type": "string"
},
"raw_token_estimate": {
"minimum": 1,
"type": "integer"
},
"returned_token_estimate": {
"minimum": 1,
"type": "integer"
},
"token_estimate_method": {
"const": "characters_divided_by_4"
}
},
"required": [
"markdown",
"citations",
"raw_token_estimate",
"returned_token_estimate",
"estimated_tokens_saved",
"token_estimate_method"
],
"type": "object"
},
"context_id": {
"type": "string"
},
"delivery": {
"additionalProperties": false,
"properties": {
"cache_status": {
"enum": [
"hit",
"miss"
]
},
"cost_class": {
"enum": [
"cached",
"fresh_static"
]
},
"currency": {
"const": "USDC"
},
"economics": {
"additionalProperties": false,
"properties": {
"estimate_basis": {
"const": "configured_route_estimate"
},
"estimated_gross_margin": {
"type": "number"
},
"estimated_gross_profit_usd": {
"type": "number"
},
"estimated_variable_cost_usd": {
"minimum": 0,
"type": "number"
}
},
"required": [
"estimate_basis",
"estimated_variable_cost_usd",
"estimated_gross_profit_usd",
"estimated_gross_margin"
],
"type": "object"
},
"generated_at": {
"format": "date-time",
"type": "string"
},
"latency_ms": {
"minimum": 0,
"type": "integer"
},
"network": {
"type": "string"
},
"payment": {
"additionalProperties": false,
"properties": {
"failed_delivery_charge_policy": {
"const": "not_settled_when_handler_status_is_400_or_higher"
},
"protocol": {
"const": "x402"
},
"settlement_receipt_header": {
"enum": [
"PAYMENT-RESPONSE",
"x402/payment-response",
null
]
},
"settlement_status": {
"enum": [
"reported_in_response_header",
"reported_in_mcp_meta",
"not_applicable"
]
},
"verification_status": {
"enum": [
"verified",
"internal_unverified"
]
}
},
"required": [
"protocol",
"verification_status",
"settlement_status",
"settlement_receipt_header",
"failed_delivery_charge_policy"
],
"type": "object"
},
"price_usd": {
"minimum": 0,
"type": "number"
},
"route": {
"enum": [
"cache",
"public_html_direct"
]
},
"status": {
"const": "delivered"
}
},
"required": [
"status",
"route",
"cache_status",
"price_usd",
"currency",
"network",
"cost_class",
"economics",
"latency_ms",
"generated_at",
"payment"
],
"type": "object"
},
"receipt_id": {
"type": "string"
},
"safety": {
"additionalProperties": false,
"properties": {
"prompt_injection_signals": {
"items": {
"type": "string"
},
"type": "array"
},
"public_source_only": {
"const": true
},
"robots_policy": {
"enum": [
"allowed",
"not_present",
"unavailable_4xx"
]
},
"shared_cache_eligible": {
"type": "boolean"
},
"source_directives": {
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"public_source_only",
"shared_cache_eligible",
"source_directives",
"robots_policy",
"prompt_injection_signals"
],
"type": "object"
},
"schema_version": {
"const": "context-receipt.v1"
},
"source": {
"additionalProperties": false,
"properties": {
"canonical_url": {
"format": "uri",
"type": "string"
},
"content_sha256": {
"pattern": "^[a-f0-9]{64}$",
"type": "string"
},
"content_type": {
"type": "string"
},
"fetched_at": {
"format": "date-time",
"type": "string"
},
"final_url": {
"format": "uri",
"type": "string"
},
"requested_url": {
"format": "uri",
"type": "string"
},
"title": {
"type": "string"
}
},
"required": [
"requested_url",
"canonical_url",
"final_url",
"title",
"fetched_at",
"content_type",
"content_sha256"
],
"type": "object"
},
"transformation": {
"additionalProperties": false,
"properties": {
"max_tokens": {
"maximum": 12000,
"minimum": 250,
"type": "integer"
},
"method": {
"const": "deterministic_extract"
},
"model_used": {
"const": false
},
"pipeline_version": {
"const": "html-deterministic.v1"
},
"question": {
"type": [
"string",
"null"
]
}
},
"required": [
"pipeline_version",
"method",
"question",
"max_tokens",
"model_used"
],
"type": "object"
}
},
"required": [
"schema_version",
"receipt_id",
"context_id",
"source",
"transformation",
"context",
"delivery",
"safety"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}