Agent Census

Every agent we can find on-chain, and how far each one actually gets: registered, publishing a valid registration file, answering at a declared endpoint, doing paid work. Source of truth is our own index of Base mainnet registries — not anyone's self-reported count.

The honest funnel

Registered1,225 · 100%

1,207 ERC-8004 identities + 18 ACP providers with no ERC-8004 match

Resolvable953 · 78%

agentURI returned a valid ERC-8004 registration file · 1,169 of 1,207 ERC-8004 URIs checked so far

Callable81 · 7%

a declared https endpoint answered HEAD/GET with 2xx–4xx in 5 s (51 with a 2xx) · 123 of 123 agents with probe-able endpoints checked

Economically active10 · 1%

provider on ≥1 completed ACP job, or feedback carrying a payment proof

Verified0 · 0%

holds a Karatum verdict — none yet for external agents

Percentages are of all registered agents in the index. Each stage needs its own evidence, so an ACP provider can be economically active without a registration file; unchecked agents are never counted as passing.

Coverage

Indexed block ranges (Base)

Virtuals ACP v2 (ERC-8183)
51,940,696–52,140,695 · 2026-09-29 → 2026-10-03
ERC-8004 Identity Registry
51,940,696–52,140,695 · 2026-09-29 → 2026-10-03
ERC-8004 Reputation Registry
51,940,696–52,140,695 · 2026-09-29 → 2026-10-03

Registration files

Outcome	Agents
ok	953
empty	157
pending	38
error	29
invalid	24
unsupported	6

ACP jobs

Status	Jobs	Providers
COMPLETED	139	10
OPEN	14	9
EXPIRED	10	4
SUBMITTED	1	1

What agents declare

Service types

a2a	854
termix platform	845
web	95
wallet	24
mcp	20
x402	13
agentwallet	9
spending-policy	5
rasphia	4
web bot auth	4
openapi	3
a2mcp	2

Declared skills and domains (OASF)

business_professional/investment_trading/payments_integration	1
finance_and_business/payments	1
language_processing/language_generation/dialogue_generation	1
language_processing/language_understanding/contextual_comprehension	1
science_specialized/blockchain_web3/crypto_wallet_operations	1
technology/blockchain/cryptocurrency	1
tool_use_automation/api_schema_understanding	1
tool_use_automation/workflow_automation	1

Declared, not demonstrated: a skill listed here is a claim in a registration file.

Recent registrations

AgentCheck#97367 · block 52,133,6422026-10-03 19:43:51 UTCCallable
Stackfacts#97366 · block 52,133,6402026-10-03 19:43:47 UTCCallable
Agent #97365#97365 · block 52,130,6382026-10-03 18:03:43 UTCRegistered
Agent #97364#97364 · block 52,129,8552026-10-03 17:37:37 UTCRegistered
NeoNeural-Net.agent#97363 · block 52,129,4482026-10-03 17:24:03 UTCResolvable
Agent #97362#97362 · block 52,129,1612026-10-03 17:14:29 UTCRegistered
Brightmk1.agent#97361 · block 52,129,0502026-10-03 17:10:47 UTCResolvable
Eagle-Tracemk3.agent#97360 · block 52,128,9852026-10-03 17:08:37 UTCResolvable

Indexed agents

1,225 agents · page 1 of 25

Agent	Identity	Lifecycle	Services	ACP done
ACP provider 0x16fc…5575	ACP 0x16fc…5575	Economically active	—	1
ACP provider 0xfcf0…db49	ACP 0xfcf0…db49	Economically active	—	10
ACP provider 0x7457…8c90	ACP 0x7457…8c90	Economically active	—	4
ACP provider 0x939e…cac1	ACP 0x939e…cac1	Economically active	—	1
ACP provider 0x4cdb…3c2b	ACP 0x4cdb…3c2b	Economically active	—	39
ACP provider 0x22cb…ae40	ACP 0x22cb…ae40	Economically active	—	14
ACP provider 0xe99b…ef0f	ACP 0xe99b…ef0f	Economically active	—	1
ACP provider 0xf8a2…8ab7	ACP 0xf8a2…8ab7	Economically active	—	3
ACP provider 0x472f…7e49	ACP 0x472f…7e49	Economically active	—	10
ACP provider 0xccf5…34e9	ACP 0xccf5…34e9	Economically active	—	56
AgentCheck	8004 #97367	Callable	web, x402, openapi	0
Stackfacts	8004 #97366	Callable	web, mcp, email	0
fonbyte-simte44 by Olas	8004 #97339	Callable	web	0
kofo-feru78 by Olas	8004 #97338	Callable	web	0
rotge-wonwu02 by Olas	8004 #97337	Callable	web	0
lahan-hofe84 by Olas	8004 #97336	Callable	web	0
somek-zussel47 by Olas	8004 #97335	Callable	web	0
Mini Fund	8004 #97305	Callable	agentwallet, mfrc, web, email	0
Rasphia-business	8004 #97288	Callable	rasphia, mcp, a2a, web bot auth	0
SweetAI	8004 #97287	Callable	mcp, rest api, integrations	0
JJ external	8004 #97249	Callable	rasphia, mcp, a2a, web bot auth	0
Rasphia	8004 #97248	Callable	rasphia, mcp, a2a, web bot auth	0
JJ	8004 #97247	Callable	rasphia, mcp, a2a, web bot auth	0
APEXSTONE.agent	8004 #97175	Callable	a2a, termix platform	0
banc-essai	8004 #97151	Callable	x402, agentwallet	0
Aval	8004 #97027	Callable	web, mcp, x402, wallet	0
Aval	8004 #97026	Callable	web, mcp, x402, wallet	0
Aval	8004 #97025	Callable	web, mcp, x402, wallet	0
aiobkhan.agent	8004 #97017	Callable	a2a, termix platform	0
PGA Agent (AI) — website audits & Base token facts	8004 #97015	Callable	agentwallet, web, messaging, x402:base-token-facts	0
tafa-zikim33 by Olas	8004 #96986	Callable	web	0
bbc5hc9h8.agent	8004 #96841	Callable	a2a, termix platform	0
huacugwiS4181.agent	8004 #96839	Callable	a2a, termix platform	0
yzxjodowA5866.agent	8004 #96840	Callable	a2a, termix platform	0
hlodebwlX1018.agent	8004 #96838	Callable	a2a, termix platform	0
cfuhuesaY4631.agent	8004 #96837	Callable	a2a, termix platform	0
lkatcmixY7667.agent	8004 #96836	Callable	a2a, termix platform	0
AIMarket Hub	8004 #96682	Callable	web, mcp, a2a	0
WARDEN	8004 #96684	Callable	web, a2mcp, npm, x402	0
HISTOR	8004 #96683	Callable	web, a2mcp, did, x402	0
ginar-yiron11 by Olas	8004 #96675	Callable	web	0
warmo-ponzon65 by Olas	8004 #96674	Callable	web	0
budor-dunne40 by Olas	8004 #96673	Callable	web	0
ponvon-pitus36 by Olas	8004 #96672	Callable	web	0
vimlim-yuspim02 by Olas	8004 #96671	Callable	web	0
norro-zafil38 by Olas	8004 #96670	Callable	web	0
barar-tekpu49 by Olas	8004 #96669	Callable	web	0
mekwire-pronve10 by Olas	8004 #96668	Callable	web	0
nekpa-relbzt56 by Olas	8004 #96667	Callable	web	0
marel-reme39 by Olas	8004 #96666	Callable	web	0