Discover / draconic21-x402-api.onrender.com
d21 gas_price
□ No challenge detectedGas Price ($0.002): current Base gas market read live from Base's own public JSON-RPC, not a hosted gas-oracle vendor -- legacy gas price (eth_gasPrice), EIP-1559 base fee (latest block), and a suggested priority/max fee (eth_maxPriorityFeePerGas + a computed 2x-base-fee heuristic), all in gwei, plus a plain-transfer cost estimate. Base mainnet only. Body {} or { chain: "base" }. Check free /v1/gas_price/availability first.
- Listed price
- $0.002
- Challenge detected
- 2 of the last 9 checks
- Median response
- 247 ms
- Last checked
- 16 Oct, 18:49 UTC
- In our index since
- 28 Sept 2026
Endpoint
curl -i https://draconic21-x402-api.onrender.com/v1/gas_price # 402 Payment Required: pay with an x402 client (USDC on Base), # then send the same request again with the payment attached.
44 listed endpoints · on x402 Bazaar
Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.
Base URLhttps:
- POST/wiki_trends_pulse$0.025Wiki Trends Pulse ($0.025 — 50% below the category-leading "social media trends" comparable's $0.05): trending-topic & topic-attention data for keyword research, content timing, and demand-trend analysis, fetched live from Wikimedia's own Pageviews API. Omit `article`/`keyword` for today's trending + breakout topics for a project (new-to-top or sharply-rising vs the same weekday one week earlier); give `article` (or its alias `keyword`) for that topic's daily interest-over-time series with…
- POST/token_price$0.003Token Price ($0.003): Base token price derived from on-chain state, not a resold price-API feed. Curated majors (ETH, WETH, USDC, DAI, cbETH, cbBTC, BTC) are priced from Chainlink's own Data Feed aggregator contracts on Base; any other Base ERC-20 address is priced from its deepest discoverable Uniswap V3 pool against USDC (with a liquidity read and a low-liquidity flag), or a clean unsupported-token error if no pool is discoverable. Also accepts { coins }, a comma-separated batch of symbols…
- POST/news_search$0.009News Search ($0.009): multi-language, multi-country news headline search plus an optional volume/tone timeline, built entirely on the GDELT Project's free, keyless DOC 2.0 API (100+ languages, updated every 15min). Body { query } required; optional timespan (1h..3m), language, country, domain filters, min_tone/max_tone, sort (date|relevance), max_records (1-50). Pass mode:"timeline" for a per-period volume+tone series instead of an article list. Headlines/URLs/metadata only -- never relays…
- POST/edgar_company_facts$0.02SEC EDGAR Company Facts ($0.02): key XBRL facts for any US-listed company by ticker or CIK — Assets, Revenues, NetIncomeLoss, EPS and more, each with its latest value, period end, form, and filed date. Fetched live from data.sec.gov, not a snapshot. Body { ticker?, cik?, concepts?: string[] }. Check free /v1/edgar_company_facts/availability first.
- POST/pdf_extract$0.04PDF Extract ($0.04): deterministic PDF -> per-page plain text + metadata, no OCR, no table extraction, no third-party PDF/OCR vendor -- text pulled directly from the PDF's own embedded text objects via pdfjs-dist (Mozilla's own PDF.js, Apache-2.0) running in this process. Body { url } (public http(s) PDF link, SSRF-hardened fetch) OR { pdf_base64 } (raw base64 bytes), not both. Max 10 MiB, max 40 pages. Check free /v1/pdf_extract/availability first.
- POST/signal_continuity$0.07Signal archive compound: which Daily Agent Signal threads held, rose, appeared or faded over the last N stored days. One row per signal id with first/last seen, days present, rank path, vs_prior path and latest judgment, plus ids grouped by trajectory. Body { days: 1..90 }. Not full briefs (that is signal_history). Free first: archive_day_count at /health, /v1/signal_continuity/example.
- POST/social_trends_pulse$0.015Social Trends Pulse ($0.015): multi-source trending-topics feed for the demand-radar's #1-observed-demand category ("social media trends") — aggregated live from Hacker News, Lobsters, Mastodon, and Wikipedia (via this origin's own wiki_trends_pulse), deduped/merged across sources into one ranked topics list. Cheaper than wiki_trends_pulse, more sources. Body { sources?: subset of [hackernews, lobsters, mastodon, wikipedia], limit?: 1..20 }. Check free /v1/social_trends_pulse/availability first.
- POST/treasury_fiscal_snapshot$0.005Treasury Fiscal Snapshot ($0.005): total U.S. public debt outstanding (Debt to the Penny), recent Treasury operating cash balance, and current-quarter Treasury Reporting Rates of Exchange, in one call. Fetched live from api.fiscaldata.treasury.gov, not a snapshot. Body {} (no fields required). Check free /v1/treasury_fiscal_snapshot/availability first.
- POST/directory_presence$0.06Supporting meta ledger: CURRENT listing presence for THIS origin. Secondary to Signal.
- POST/signal_day$0.04One stored Daily Agent Signal edition by date: the complete final brief for that day (ranked signals, judgment, sources). Body { date: YYYY-MM-DD } (required). A bad or unstored date gets a free 400/404 before any charge; stored dates are listed free at /health and /v1/signal_day/example.
- POST/email_validate$0.006Email Validate ($0.006): syntax + live MX/A-fallback deliverability + disposable-domain + role-address + free-webmail-provider + SPF/DMARC, with no third-party validation vendor at all -- syntax is RFC 5321/5322 grammar, MX/A/SPF/DMARC are live DNS via this server's own resolver (the same protocol-level sourcing as domain_intel), and disposable-domain detection is a static self-maintained list. Never opens an SMTP connection to the mailbox or confirms one specific inbox exists. Body { email }…
- POST/agent_intent_read$0.05Demand waitlist read ($0.05): recent full intents from OUR accumulated board. Body { limit?: 1..100 }. Free thin count at GET /intents. Scarce = demand intel only this origin hosts.
- POST/signal_latest$0.03GO-TO PRODUCT: today's Daily Agent Signal — ranked, dated x402/agent-commerce marketplace intelligence (seller pricing, payer-count shifts, settle cadence read from Base, listing churn) with judgment, buyer_value, action_hint, falsifiable calls, sources. Free before paying: /health sha256, /v1/signal_latest/example, and /signal/scorecard.json (every dated call scored, our misses included). Pass expect_sha256 to pay only for the revision you checked. Not general crypto news — see…
- POST/rate_quote$0.01Legacy/supporting: hours × rate quote breakdown. Not the go-to — prefer Signal.
- POST/agent_intent_post$0.02Demand waitlist write ($0.02): agents post what they'd pay for. Body { intent, budget_hint?, contact? }. No URLs fetched; length-capped; no secrets stored. Free thin count at GET /intents. Different buyer than Signal readers.
- POST/sanctions_delta$0.008Sanctions Delta ($0.008): which OFAC SDN entries (and OFAC-published crypto addresses) were added, removed, or modified since a given date, derived from OFAC's own official change-tracking feed (sanctionslistservice.ofac.treas.gov/changes/...) — not a self-diff of two snapshots. Body { since: "YYYY-MM-DD", entity_type?, crypto_only?, limit? }. Check free /v1/sanctions_delta/availability first.
- GET/crypto_news$0.001Crypto News ($0.001 -- matches the category-leading incumbent's price exactly): fixed, no-required-params crypto headline feed -- a drop-in-shaped alternative to the category leader (GET, headlines[] with title/url/source/publishedAt; also mirrors its {status, data:{headlines[] with rank/whyItMatters/match, report}, meta} nesting field-for-field, as an additive alias). Built on this origin's own news_search GDELT client (narrowed to a crypto query) merged with Hacker News crypto stories for…
- POST/signal_topic_trace$0.06One Daily Agent Signal thread's path across stored editions: each date, rank, vs_prior, headline, judgment, action hint. Body { id } (from signal_latest/continuity) or { topic } (exact tag, 09-19..09-25 editions only), days 1..90. Bad body or no match: free 400/404 with sample ids, no charge.
- POST/edgar_filings$0.02SEC EDGAR Filings ($0.02): recent SEC filings for any US-listed company by ticker or CIK — 10-K, 10-Q, 8-K (with numbered items), and every other form, with direct document URLs and acceptance timestamps. Fetched live from data.sec.gov, not a snapshot. Body { ticker?, cik?, form?, since?, until?, limit?: 1..200 }. Check free /v1/edgar_filings/availability first.
A dash means the listing gives no price or method. Copy buttons copy the full URL.
Showing 19 of 44 listed endpoints. First endpoints
Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/draconic21-x402-api.onrender.com
Recent checks
All 9 checks
| When (UTC) | Result | HTTP | Response |
|---|---|---|---|
| 16 Oct, 18:49 UTC | No challenge detected | 404 | 306ms |
| 15 Oct, 08:20 UTC | No challenge detected | 404 | 314ms |
| 13 Oct, 20:45 UTC | No challenge detected | 404 | 230ms |
| 11 Oct, 19:34 UTC | No challenge detected | 404 | 281ms |
| 10 Oct, 03:32 UTC | Challenge detected | 402 | 169ms |
| 8 Oct, 21:32 UTC | Challenge detected | 402 | 325ms |
| 7 Oct, 15:42 UTC | No challenge detected | 404 | 296ms |
| 6 Oct, 15:31 UTC | No challenge detected | 404 | 124ms |
| 28 Sept, 05:02 UTC | No challenge detected | 404 | 96ms |
Questions
Did our last probe detect a payment challenge?
No. At our last probe on 16 Oct, 18:49 UTC, we detected no payment challenge.
What price is recorded for d21 gas_price?
Its listed price is $0.002.
What payment terms does d21 gas_price advertise?
The listing advertises x402, Base, Solana and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.
Where is d21 gas_price listed?
In x402 Bazaar. Superstables first indexed it on 28 Sept 2026.
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