generated: '2026-09-19'
method: probed
source: https://network.mercury-hq.com/catalog
sources:
- https://network.mercury-hq.com/catalog (free JSON catalog; saved verbatim as plans/mercury-hq-com-catalog.json)
- https://network.mercury-hq.com/.well-known/x402 (x402 v2 discovery doc, 18 resources with priceUsd)
- https://network.mercury-hq.com/openapi.json (x-payment-info / x-x402 per operation, incl. the fetch/plus/pro tiers
  of /buy/fetch)
- live unpaid GET https://network.mercury-hq.com/buy/fetch?url=https://example.com -> 402 (maxAmountRequired 3000
  = $0.003 USDC, 6 decimals)
- https://network.mercury-hq.com/pricing (human page; API-key subscription tiers; method searched for that block)
- https://network.mercury-hq.com/developers and /university/developers (credit model, free sandbox key, top-up)
- https://network.mercury-hq.com/terms (non-refundable, no SLA)
note: 'MERCURY publishes two price surfaces for the same 18 paid routes. (1) The x402 rail: a fixed per-call USDC
  price per SKU, machine-readable in /catalog, /.well-known/x402 and the OpenAPI, and carried in the live 402 challenge
  (the provider states all four are generated from one catalog object so they cannot drift; the challenge for /buy/fetch
  carried maxAmountRequired 3000 base units = $0.003, matching). /buy/fetch additionally declares three x402 tiers
  in its x-x402.accepts (fetch $0.003, plus $0.006 with markdown + link graph, pro $0.012 with structured extract).
  (2) The API-key rail: four monthly tiers on /pricing billed through Stripe Checkout, metered in credits at 1 credit
  = $0.001 (a $0.005 SKU costs 5 credits), plus one-time credit top-ups ($1 = 1,000 credits, $5-$500). The provider
  is candid that it has N=0 external buyers and 0 paying subscribers; the /university hub still labels the API-key
  paid tier "Building" while /developers and /pricing describe it as live with Stripe - recorded as stated. All
  payments are NON-REFUNDABLE once settled and there is no SLA (terms, effective 2026-06-04). The nine in-game mint
  SKUs (matter, antimatter, dark-matter, brick, agent, shelf, wand, api-render, api-oracle) that llms.txt lists
  at $0.01-$1.00 are NOT in /catalog or the OpenAPI and answer 503 mint-disabled with Retry-After 3600 before any
  charge; they are listed below as unavailable, not as plans.'
plan_count: 4
currency: USD
billing_model: per-call (x402 USDC micropayment or prepaid credits); optional monthly subscription tiers on the
  API-key rail
payment_rails:
- key: x402
  method: x402 v1 challenge / v2 discovery
  network: base (eip155:8453)
  asset: USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
  payTo: '0xe10B9d44e72A29B9c19da02981FFCd875308e3C1'
  facilitator: https://api.cdp.coinbase.com/platform/v2/x402
  testnet: false
  account_required: false
- key: api_key
  method: 'Authorization: Bearer mk_test_ / mk_live_'
  billing: Stripe Checkout (subscription) and Stripe one-time credit top-up (POST /api/dev/topup?key=mk_live_...&usd=10)
  credit_unit: 1 credit = $0.001
  account_required: a key (free, POST /api/dev/keys?live=false)
plans:
- name: Sandbox
  price: 0
  currency: USD
  period: month
  included_quota: 100 credits/mo
  rate_limit: 5/min
  proxy_take: 10%
  key_prefix: mk_test_
  limits: free test key; 100 credits to evaluate the whole API; issuance capped at 20 keys per IP per hour
  source: https://network.mercury-hq.com/pricing
- name: Pro
  price: 29
  currency: USD
  period: month
  included_quota: 50k credits/mo
  rate_limit: 120/min
  proxy_take: 8%
  key_prefix: mk_live_
  overage: one-time credit top-up $1 = 1,000 credits ($5-$500)
  source: https://network.mercury-hq.com/pricing
- name: Business
  price: 199
  currency: USD
  period: month
  included_quota: 1M credits/mo
  rate_limit: 600/min
  proxy_take: 6%
  key_prefix: mk_live_
  overage: one-time credit top-up $1 = 1,000 credits ($5-$500)
  source: https://network.mercury-hq.com/pricing
- name: Enterprise
  price: 1500
  currency: USD
  period: month
  included_quota: unmetered credits/mo
  rate_limit: — (none stated)
  proxy_take: 5%
  key_prefix: mk_live_
  source: https://network.mercury-hq.com/pricing
per_call_prices:
- sku: signal
  route: GET /buy/signal
  price: $0
  price_usd: 0
  kind: data
  metered: false
  operationId: buy_signal
  category: null
- sku: web-fetch
  route: GET /buy/fetch
  price: $0.003
  price_usd: 0.003
  kind: api
  metered: true
  operationId: buy_web_fetch
  category: data/web-read
- sku: cited-markdown
  route: GET /buy/markdown
  price: $0.005
  price_usd: 0.005
  kind: api
  metered: true
  operationId: buy_cited_markdown
  category: data/web-read
- sku: cited-metadata
  route: GET /buy/metadata
  price: $0.006
  price_usd: 0.006
  kind: api
  metered: true
  operationId: buy_cited_metadata
  category: null
- sku: cited-links
  route: GET /buy/links
  price: $0.005
  price_usd: 0.005
  kind: api
  metered: true
  operationId: buy_cited_links
  category: null
- sku: cited-robots
  route: GET /buy/robots
  price: $0.005
  price_usd: 0.005
  kind: api
  metered: true
  operationId: buy_cited_robots
  category: null
- sku: cited-diff
  route: GET /buy/diff
  price: $0.006
  price_usd: 0.006
  kind: api
  metered: true
  operationId: buy_cited_diff
  category: null
- sku: cited-notarize
  route: GET /buy/notarize
  price: $0.008
  price_usd: 0.008
  kind: api
  metered: true
  operationId: buy_cited_notarize
  category: data/provenance
- sku: cited-headers
  route: GET /buy/headers
  price: $0.005
  price_usd: 0.005
  kind: api
  metered: true
  operationId: buy_cited_headers
  category: null
- sku: cited-table
  route: GET /buy/table
  price: $0.006
  price_usd: 0.006
  kind: api
  metered: true
  operationId: buy_cited_table
  category: data/web-read
- sku: cited-feed
  route: GET /buy/feed
  price: $0.005
  price_usd: 0.005
  kind: api
  metered: true
  operationId: buy_cited_feed
  category: null
- sku: cited-availability
  route: GET /buy/availability
  price: $0.005
  price_usd: 0.005
  kind: api
  metered: true
  operationId: buy_cited_availability
  category: null
- sku: cited-validate
  route: GET /buy/validate
  price: $0.005
  price_usd: 0.005
  kind: api
  metered: true
  operationId: buy_cited_validate
  category: data/validation
- sku: cited-batch
  route: GET /buy/batch
  price: $0.02
  price_usd: 0.02
  kind: api
  metered: true
  operationId: buy_cited_batch
  category: data/web-read
- sku: cited-sitemap
  route: GET /buy/sitemap
  price: $0.01
  price_usd: 0.01
  kind: api
  metered: true
  operationId: buy_cited_sitemap
  category: null
- sku: cited-dns
  route: GET /buy/dns
  price: $0.006
  price_usd: 0.006
  kind: api
  metered: true
  operationId: buy_cited_dns
  category: null
- sku: cited-readability
  route: GET /buy/readability
  price: $0.005
  price_usd: 0.005
  kind: api
  metered: true
  operationId: buy_cited_readability
  category: data/web-read
- sku: cited-redirect
  route: GET /buy/redirect
  price: $0.005
  price_usd: 0.005
  kind: api
  metered: true
  operationId: buy_cited_redirect
  category: null
fetch_tiers_x402:
- tier: fetch
  price: $0.003
  includes: clean page text + signed provenance receipt
- tier: plus
  price: $0.006
  includes: + markdown structure + outbound-link graph
- tier: pro
  price: $0.012
  includes: + deterministic structured-extract JSON record
free_tier:
  name: Free discovery and verification
  price: 0
  included: GET /catalog, /.well-known/x402, /x402/discovery, /openapi.json, /llms.txt, /manifest, /health, /vs,
    /market, /scoreboard, /buy/signal (demo data), /x402/attestation/sample, /x402/verify + POST /verify, MCP initialize
    + tools/list, A2A message/send free preview
  account_required: false
unavailable_skus:
  note: 'listed in llms.txt and /university/docs as Building; absent from /catalog and the OpenAPI; GET returns
    503 {reason: mint-disabled, deliverable: false} with Retry-After 3600 and no charge'
  items:
  - sku: matter
    price: $0.01
  - sku: antimatter
    price: $0.05
  - sku: dark-matter
    price: $0.25
  - sku: brick
    price: $0.01
  - sku: agent
    price: $1.00
  - sku: shelf
    price: $0.10
  - sku: wand
    price: $0.50
  - sku: api-render
    price: $0.02
  - sku: api-oracle
    price: $0.10
refunds:
  refundable: false
  source: 'https://network.mercury-hq.com/terms ("NON-REFUNDABLE once settled - you pay per ATTEMPT"; machine-readable
    GET /terms with Accept: application/json returns refundable:false, sla:false)'
x-evidence:
  fetched: '2026-09-19'
  probes:
  - url: https://network.mercury-hq.com/catalog
    status: 200
    content_type: application/json
  - url: https://network.mercury-hq.com/.well-known/x402
    status: 200
    content_type: application/json
  - url: https://network.mercury-hq.com/buy/fetch?url=https://example.com
    method: GET (unpaid)
    status: 402
    maxAmountRequired: '3000'
  - url: https://network.mercury-hq.com/buy/matter
    method: GET (unpaid)
    status: 503
    retry_after: '3600'
  - url: https://network.mercury-hq.com/pricing
    status: 200
    content_type: text/html
  - url: https://network.mercury-hq.com/terms
    status: 200
    accept: application/json
    refundable: false